powersoft K6 DSP+AESOP Manuel utilisateur

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USER GUIDE
©2014 Powersoft
K Series
DO000044.04 R01
Top class amplification covering
any power needs in touring applications
K2, K3
K6, K8, K10, K20
and DSP + AESOP versions
powersoft_KSeries_uguide_mul_v3.0
Data are subject to change without notice.
For latest update please refer to the
online version available on www.powersoft-audio.com.
K Series User Guide
1. Important safety instructions 1
2. Regulatory information 2
3. K Series 3
3 : 1.Welcome 3
3 : 4.About the amplifier platform 3
3 : 2.Unpacking & checking for shipping damage 3
3 : 3.Disposal of the packing material 3
4. Installation 4
4 : 1.Cooling 4
4 : 2.Cleaning 4
4 : 3. AC mains supply 5
4 : 4.Precautions regarding installation 5
5. Connections 6
5 : 1.Signal grounding 6
5 : 2. Analog input 6
5 : 3. Analog line output 6
5 : 4.Digital Input 6
5 : 5.A ESOP 6
5 : 6.Loudspeaker connect ions 7
5 : 6.1. B ridg e-ti ed load 7
5 : 7.V E xt 7
5 : 8.RS- 485 connection 7
6. LEDs and display menu 8
6 : 1.L ED char t 8
6 : 2.Front display 8
6 : 2.1. How to navigate the main menu 8
6 : 2. 2. M enu diagr ams 9
7. Warranty and assistance 10
7 : 1.Warranty 10
7 : 1.1. Prod uct wa rra nt y 10
7 : 1.2 . Retu rn of G oods 10
7 : 1.3. Re pair or r eplace ment 10
7 : 1.4. Cost and responsibility of transport 10
7 : 2. Assistance 10
Englis h Française
1. Importantes instructions de sécurité 11
| i
ii | K Series | User guide
A
465
32.2
496
456
5.9
482
439 44
32
| iii
B
465
32.2
465.4
472.4
5.9
482
440 44
32
iv | K Series | User guide
C
D
E
K2, K3
K2, K3 AESOP
A
1 2
F
9
B
3 5
14
C
4
13
6
D
7
12
E
8
G
10
11
| v
A. RJ45 plugs (either AESOP or RS485 ports
according to the amplifier configuration)
B. LED bar: signal metering channel 1
C. Main display
D. Smart Card slot
E. Multifunction buttons
F. LED bar: signal metering channel 2
G. Main switch
A.
B.
C.
D.
E.
F.
G.
A.
B.
C.
D.
E.
F.
G.
A.
B.
C.
D.
E.
F.
G.
1. Mains plug
2. Air vents
3. Serial ID selector for the RS485 port
(non AESOP version only)
4. RS485 serial port (non AESOP version only)
5. AES3/analog switch for input 2
6. Input 2: channel 2 analog input in analog
mode or AES3 input in AES3 mode, accord-
ing to the position of the switch in #5
7. Line output channel 2
8. Link button: link input from channels 1 and 2
9. Line output channel 1
10. Input 1: channel 1 analog input
11. Speaker connector: output channel 1
12. Speaker connector: output channel 2
13. Ethernet+AESOP ports (AESOP version only)
14. Vext: 12 V
DC
, 1A external voltage input
(AESOP version only)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Englis h
Italiano
Française Español
vi | K Series | User guide
F
G
1 2 4
12
3
11
5 6
10
7 8
9
K6, K8, K10, K20
K6, K8, K10, K20 AESOP
| vii
1. Mains plug
2. Air vents
3. Serial ID selector for the RS485 port
(non AESOP version only)
4. RS485 serial port (non AESOP ver-
sion only)
5. AES3/analog switch for input 2
6. Input 2: channel 2 analog input in
analog mode or AES3 input in AES3
mode, according to the position of
the switch in #5
7. Link button: link input from channels
1 and 2
8. Input 1: channel 1 analog input
9. Speaker connector: output channel 1
10. Speaker connector: output channel 2
11. Ethernet+AESOP ports (AESOP ver-
sion only)
12. Vext: 12 V
DC
, 1A external voltage in-
put (AESOP version only)
Englis h
Italiano
Française Español
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
viii | K Series | User guide
H
Common Settings
CH1 Settings
CH2 Settings
CH1 Setup
CH2 Setup
Input EQ
Reset Input Section
Reset Output Section
Source Selection
AES3
Cross limit
Sound speed (m/s)
Gain trim (dB)
If no link:
EQs
LP lter
HP lter
Polarity
Ch delay (us)
Gain (dB)
Peak limiter
Power limiter
Damping Control
PEQ#
Stereo
Parallel from CH1
Parallel from CH2
Mono Mix
Active
Freq. (Hz)
Slope (dB/oct)
Shape
Active
Freq. (Hz)
Slope (dB/oct)
Shape
In phase
Reversed
Active
Thresh. (Vpk)
Attack (ms)
Release (ms)
Mode
Soft knee
Thresh. (W)
Attack (ms)
Release (ms)
Mode
Equiv. Rout (Ω)
Aux Dly (ms)
Diagnostics
Tone in alarm
Tone in freq
Tone in Vmin
Tone in Vmax
Tone out gen
Tone out ampl
Tone out freq
Tone out alarm
Tone out Vmin
Tone out Vmax
Load alarm
Load Zmin
Load Zmax
Measures
identical to CH1 Settings
identical to CH1 Setup
Analog
Mute
Active
Freq. (Hz)
Gain (dB)
Q factor
Type
Peaking
Low Shelving
High Shelving
Low pass EQ
High pass EQ
Bandstop
Bandpass
Allpass
Butterworth
Bessel
Link.-Riley
FIR Lin Phase
Hybrid FIR
Butterworth
Bessel
Link.-Riley
FIR Lin Phase
Hybrid FIR
OFF
TruePower
Power vs V @ 8Ω
Power vs I @ 8Ω
Display
Local presets
Setup
Settings
Amplier Settings
DSP Settings
1
Network Settings
2
Output meters
Temperature
Mains meters
Amplier name
Lock presets
Locked bank size
Recall local preset
Save local preset
Change lock code
Erase all presets
Hardware Info
Hardware Monitor
LCD contrast
Set Keylock code
Service
Source selection
Source mode
Gain trim
If no link
AES3-XLR rear panel
AES3-A
AES3-B
Parallel from L
Parallel from R
Stereo
Mute
Analog
Display Amp data
Edit Amplier name
Analog Out
Analog DSP Out
1
AES3 Out
1
AES3 DSP Out
1
KAESOP Out
2
KAESOP DSP Out
1, 2
Output attenuation
Input gain/sens
Inuput select
Max output voltage
Max mains current
Clip limiter CH1
Clip limiter CH2
Gate CH1
Gate CH2
Mute at Power on
Idle Mode
Device mode
Addressing mode
Set address
Show net cong
Audio
Repeat (default)
Forward to AES3-A
Forward to AES3-B
Forward to both
IP address
subnet mask
Default gateway
1
Available only with optional KDSP board
2
Available only with optional KAESOP board
| ix
Common Settings
CH1 Settings
CH2 Settings
CH1 Setup
CH2 Setup
Input EQ
Reset Input Section
Reset Output Section
Source Selection
AES3
Cross limit
Sound speed (m/s)
Gain trim (dB)
If no link:
EQs
LP lter
HP lter
Polarity
Ch delay (us)
Gain (dB)
Peak limiter
Power limiter
Damping Control
PEQ#
Stereo
Parallel from CH1
Parallel from CH2
Mono Mix
Active
Freq. (Hz)
Slope (dB/oct)
Shape
Active
Freq. (Hz)
Slope (dB/oct)
Shape
In phase
Reversed
Active
Thresh. (Vpk)
Attack (ms)
Release (ms)
Mode
Soft knee
Thresh. (W)
Attack (ms)
Release (ms)
Mode
Equiv. Rout (Ω)
Aux Dly (ms)
Diagnostics
Tone in alarm
Tone in freq
Tone in Vmin
Tone in Vmax
Tone out gen
Tone out ampl
Tone out freq
Tone out alarm
Tone out Vmin
Tone out Vmax
Load alarm
Load Zmin
Load Zmax
Measures
identical to CH1 Settings
identical to CH1 Setup
Analog
Mute
Active
Freq. (Hz)
Gain (dB)
Q factor
Type
Peaking
Low Shelving
High Shelving
Low pass EQ
High pass EQ
Bandstop
Bandpass
Allpass
Butterworth
Bessel
Link.-Riley
FIR Lin Phase
Hybrid FIR
Butterworth
Bessel
Link.-Riley
FIR Lin Phase
Hybrid FIR
OFF
TruePower
Power vs V @ 8Ω
Power vs I @ 8Ω
Display
Local presets
Setup
Settings
Amplier Settings
DSP Settings
1
Network Settings
2
Output meters
Temperature
Mains meters
Amplier name
Lock presets
Locked bank size
Recall local preset
Save local preset
Change lock code
Erase all presets
Hardware Info
Hardware Monitor
LCD contrast
Set Keylock code
Service
Source selection
Source mode
Gain trim
If no link
AES3-XLR rear panel
AES3-A
AES3-B
Parallel from L
Parallel from R
Stereo
Mute
Analog
Display Amp data
Edit Amplier name
Analog Out
Analog DSP Out
1
AES3 Out
1
AES3 DSP Out
1
KAESOP Out
2
KAESOP DSP Out
1, 2
Output attenuation
Input gain/sens
Inuput select
Max output voltage
Max mains current
Clip limiter CH1
Clip limiter CH2
Gate CH1
Gate CH2
Mute at Power on
Idle Mode
Device mode
Addressing mode
Set address
Show net cong
Audio
Repeat (default)
Forward to AES3-A
Forward to AES3-B
Forward to both
IP address
subnet mask
Default gateway
1
Available only with optional KDSP board
2
Available only with optional KAESOP board
x | K Series | User guide
I
K
J
Analog input
XLR-M pinout
Pin 1 GND
Pin 2
HOT
Pin 3
COLD
Analog input
TRS Jack pinout
Tip
HOT
Ring
COLD
Sleeve GND
A
C
B
HOT
HOT
1
S
2
R
3
T
COLD
COLD
GND
GND
Analog line output
XLR-F pinout
Pin 1 GND
Pin 2
HOT
Pin 3
COLD
HOT
1
2
3
COLD
GND
Bridge-tied load
speakON
connector
Channel 2
output
stage B
LINK
CHB +
CHB +
CHB –
CHB –
B
speakON
connector
Channel 1
output
stage A
CHA +
CHA +
CHA –
CHA –
A
CH1
CH2
Single-ended load
Single-ended load
speakON
connector
Channel 2
output
stage B
CHB +
CHB +
CHB –
CHB –
B
speakON
connector
Channel1
output
stage A
CHA +
CHA +
CHA –
CHA –
A
1+
2+
1–
2–
1+
2+
1–
2–
1+
2+
1–
2–
1+
2+
1–
2–
1+
2+
1–
2–
1+
2+
1–
2–
1+
2+
1–
2–
1+
2+
1–
2–
1
+
V
ext
GND
2 3 4 5 6 7 8
Englis h
CAUTION
RISK OF ELECTRICK SHOCK
DO NOT OPEN
Electrical energy can perform many useful functions. This unit has
been engineered and manufactured to ensure your personal safety. But
IMPROPER USE CAN RESULT IN POTENTIAL ELECTRICAL SHOCK OR
FIRE HAZARD.
In order not to defeat the safeguards incorporated into this product,
observe the following basic rules for its installation, use and service.
Please read these “Important Safeguards” carefully before use.
Important safety instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this equipment near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with
the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-
type plug. A polarized plug has two blades with one wider than the
other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particu-
larly at plugs, convenience receptacles, and the point where they
exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by
the manufacturer, or sold with the apparatus. When a
cart is used, use caution when moving the cart/ap-
paratus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or
when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has
been dropped.
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT ATTEMPT TO OPEN ANY PART OF THE UNIT. NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
TO COMPLETELY DISCONNECT THIS APPARATUS FROM THE
AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG
FROM THE AC RECEPTACLE.*
THE MAINS PLUG OF THE POWER SUPPLY CORD MUST
REMAIN READILY ACCESSIBLE.**
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE,
DRIPPING OR SPLASHING LIQUIDS. OBJECTS FILLED WITH
LIQUIDS, SUCH AS VASES, SHOULD NOT BE PLACED ON THIS
APPARATUS.
EXPLANATIONS OF GRAPHICAL SYMBOLS
The triangle with the lightning bolt is used to alert the
user to the risk of electric shock.
The triangle with the exclamation point is used to
alert the user to important operating or maintenance
instructions.
The CE-mark indicates the compliance with the low
voltage and electromagnetic compatibility.
Symbol for earth/ground connection.
Symbol indicating that the equipment is for indoor
use only.
Symbol for conformity with Directive 2002/96/EC
and Directive 2003/108/EC of the European
Parliament on waste electrical and electronic equip-
ment (WEEE).
* K6, K8, K10 and K20: interrupt the mains by switching the sectioning
breaker off.
** Valid for K2 and K3 model only; with K6, K8, K10 and K20 a free leads
power cord (i.e. without plug) is provided: this solution is intended for con-
necting the device to a sectioning breaker on the mains. Refer to the instal-
lation instruction for selecting the proper sectioning breaker.
Numbers 9 and 13 apply only to K2 and K3.
K6, K8, K10 AND K20 MUST BE INSTALLED IN RACK CABINETS:
INSTEAD OF CONNECTING THE AMPLIFIER TO THE POWER
GRID DIRECTLY, PLUG THE AMPLIFIER’S MAINS CONNECTIONS VIA A
SECTIONING BREAKER TO A POWER DISTRIBUTION PANEL INSIDE THE
RACK CABINET.
WHEN THE UNIT IS INSTALLED IN A CABINET OR A SHELF,
MAKE SURE THAT IT HAS SUFFICIENT SPACE ON ALL SIDES TO
ALLOW FOR PROPER VENTILATION (50 CM FROM THE FRONT AND
REAR VENTILATION OPENINGS).
Important safety instructions
1
CONNECTION TO THE MAINS SHALL BE DONE ONLY BY A
ELECTROTECHNICAL SKILLED PERSON ACCORDING THE
NATIONAL REQUIREMENTS OF THE COUNTRIES WHERE THE UNIT IS SOLD.
Important safety instructions | 1
Regulatory information
2
FCC COMPLIANCE NOTICE
This device complies with part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party
responsible for compliance could void the users authority to operate the
equipment.
NOTE: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment gener-
ates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equip-
ment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
WEEE DIRECTIVE
If the time arises to throw away your product, please recycle all the com-
ponents possible.
This symbol indicates that when the end-user wishes
to discard this product, it must be sent to separate col-
lection facilities for recovery and recycling. By separat-
ing this product from other household-type waste, the
volume of waste sent to incinerators or land-fills will be
reduced and natural resources will thus be conserved.
The Waste Electrical and Electronic Equipment Directive (WEEE Directive)
aims to minimise the impact of electrical and electronic goods on the en-
vironment. Powersoft S.p.A. comply with the Directive 2002/96/EC and
2003/108/EC of the European Parliament on waste electrical finance the
cost of treatment and recovery of electronic equipment (WEEE) in order
to reduce the amount of WEEE that is being disposed of in land-fill site.
All of our products are marked with the WEEE symbol; this indicates that
this product must NOT be disposed of with other waste. Instead it is the
users responsibility to dispose of their waste electrical and electronic
equipment by handing it over to an approved reprocessor, or by return-
ing it to Powesoft S.p.A. for reprocessing. For more information about
where you can send your waste equipment for recycling, please contact
Powesoft S.p.a. or one of your local distributors.
EC DECLARATION OF CONFORMITY
Manufacturer:
Powersoft S.p.A.
via E. Conti 5
50018 Scandicci (Fi)
Italy
We declare that under our sole responsibility the products:
Model Names: K2, K3, K6, K8, K10, K20
K2 DSP+AESOP, K3 DSP+AESOP,
K6 DSP+AESOP, K8 DSP+AESOP, K10 DSP+AESOP,
K20 DSP+AESOP.
Intended use: Professional Audio Amplifier
Are in conformity with the provisions of the following EC Directives,
including all amendments, and with national legislation implementing
these directives:
2006/95/EC Low Voltage Directive
2004/108/EC Electromagnetic Compatibility Directive
2002/95/CE RoHs Directive
The following armonized standards are applied:
EN 55103-1:2009 /A1:2012
EN 55014-1:2006 /A1:2009 /A2:2011
EN 55022:2010 /AC:2011
EN 61000-3-2:2006 /A1:2009 /A2: 2009
EN 61000-3-3:2013
EN 61000-3-11:2000
EN 61000-3-12:2011
EN 55103-2:2009 /IS:2012
EN 61000-4-2:2009
EN 61000-4-3:2006 /A1:2008 /IS1:2009 /A2:2010
EN 61000-4-4:2012
EN 61000-4-5:2006
EN 61000-4-6:2014
EN 61000-4-11:2004
EN 60065:2002 /A1:2006 /A11:2008 /A2:2010 /A12:2011
Scandicci,
15 July 2014
Luca Lastrucci
Managing Director
For compliance questions only: compliance@powersoft.it
Englis h
2 | K Series | User guide
Englis h
K Series User Guide
3
3 : 1.Welcome
Congratulations on buying a Powersoft K Series amplier!
We know you are eager to use your new amplier, but
please take a moment to read this user’s manual and safety
instructions. In case you have any questions, please do not
hesitate to contact your dealer or Powersoft.
Powersoft is a leading company in the eld of high
efciency audio power management. The Powersoft
switching mode technology has changed the way the
world looks at professional audio amplication: no other
amplier’s performance comes close for applications
demanding high power and long term reliability. Thanks
to amazing reductions in heat output and weight, without
sacricing output powers, Powersoft ampliers can be
used in an unlimited range of PA applications such as opera
houses, theaters, churches, cinema, and theme parks.
3 : 2.Unpacking & checking for shipping damage
Your Powersoft product has been completely tested and
inspected before leaving the factory. Carefully inspect the
shipping package before opening it, and then immediately
inspect your new product. If you nd any damage notify the
shipping company immediately.
The box contains the following:
One K Series amplier.
One AC mains power cord
This user guide.
3 : 3.Disposal of the packing material
The transport and protective packing has been selected
from materials which are environmentally friendly for dis-
posal and can normally be recycled.
Rather than just throwing these materials away,
please ensure they are offered for recycling.
3 : 4.About the amplifier platform
K Series has many advanced features, digital control
of many parameters, adjustable maximum m ains con-
sumption, selectable digital presets and a graphic display
that shows detailed information of the status of the ampli-
er. All K Series ampliers come with built in Power Factor
Correction. This unique feature ensures that a predominantly
resistive load is presented to mains thus minimizing current
distortion and voltage/current displacement. This leads to
improved performance of the amplier at high levels of out-
put and avoids mains-voltage collapses, typical of standard
and switching power supplies. Another great advantage of
this technology is that its performance is, to a large extent,
independent of mains voltage. The rated output power does
not vary with load/line conditions.
K Series | 3
Englis h
Installation
4
The common installation of the amplier is in rack cabi-
nets: in order to limit the risk of mechanical damages, the
ampliers must be xed to the rack using both frontal and
rear mounting brackets.
Note: Instead of connecting the amplier to the power
grid directly, plug the amplier’s mains connections to a
power distribution panel inside the rack cabinet.
4 : 1.Cooling
Install the amplier in a well-ventilated location: the ven-
tilation openings must not be impeded by any item such as
newspapers, tablecloths, curtains, etc; keep a distance of
at least 50 cm from the front and rear ventilation openings
of the amplier.
All Powersoft ampliers implement a forced-air cooling
system to maintain low and constant operating tempera-
tures. Drawn by the internal fans, air enters from the front
panel and is forced over all components, exiting at the back
of the amplier.
The amplier’s cooling system features “intelligent” var-
iable-speed DC fans which are controlled by the heatsink
temperature sensing circuits: the fans speed will increase
only when the temperature detected by the sensors rises
over carefully predetermined values. This ensures that fan
noise and internal dust accumulation are kept to a strict
minimum.
Should however the amplier be subject to an extreme
thermal load, the fan will force a very large volume of air
through the heat sink. In the extremely rare event that the
amplier should dangerously overheat, sensing circuits
shut down all channels until the amplier cools down to a
safe operating temperature. Normal operation is resumed
automatically without the need for user intervention.
X Series ampliers can be stacked one on top of the other
due to the efcient cooling system they are equipped with.
There is however a safety limit to be observed: in case
a rack with closed back panels is used, leave one rack unit
empty every four installed ampliers to guarantee adequate
airow.
4 : 2.Cleaning
Always use a dry cloth for cleaning the chassis and the
front panel. Air lter cleaning should be scheduled according
to the dust levels in the amplier’s operating environment.
Disconnect the AC main source before
attempting to clean any part of the amplifier
In order to clean the vent lters you need to remove the
front cover: never attempt to open any other part of the unit.
By means of a screwdriver Phillips PH1, unscrew the
screws that lock the left and right cover grils on the front
panel (ref. FIGURE 3), gently lift the covers and remove the
lters. You may use compressed air to remove the dust from
lters, or wash it with clean water: in the latter case ensure
that the lters are dry before reassembly.
FIGURE 1: Mounting brackets and air flow direction.
Mounting
Brackets
FIGURE 2: How to stack the amplifiers in closed racks.
cover grill
screw lter
FIGURE 3: Cleaning air filters.
4 | K Series | User guide
4 amp stacked
1 unit space every
4 amp stacked into
closed rack cabinet
Installation | 5
Englis h
4
4 : 3.AC mains supply
The AC Main connection is made via the
AMP CPC 45A connector in K6, K8, K10 and K20;
IEC C20 connector in K3 and K2.
The FIGURE 4 shows how to connect the mains power
cable to the amplier.
Make sure the AC mains voltage used
is within the acceptable operating
voltage range: 115V-230V ±10%.
It is important to connect the ground
for safety, do not use adapters that
disable the ground connection.
All K Series ampliers have an automatic power factor
correction system – PFC – for a perfect mains network
interface. The PFC minimizes the reactive power reected
on the network and reduces the harmonic distortion on the
voltage/current waveform: in this way the amplier is seen
as a resistive load from the mains network. Furthermore, the
system allows performance to be maintained even in case
of varying mains voltage.
4 : 4.Precautions regarding installation
Placing and using the amplier for long periods of time
on heat generating sources will affect its performance. Avoid
placing the amplier on heat generating sources. Install this
amplier as far as possible from tuners and TV sets. An
amplier installed in close proximity of such equipment may
experience noise or generic performance degradation.
The power cord type provided with the amplier are
LAPP OLFLEX191 3G6 / SJT 3XAWG10
for K6, K8, K10 and K20.
Bahoing SJT 3x16AWG or I-sheng SGIS 3G 1,5 mm
2
for K3 - K2.
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK
This device must be powered exclusively by earth con-
nected mains sockets in electrical networks compliant
to the IEC 364 or similar rules.
Install K6, K8, K10 and K20 into rack cabinet.
With K6, K8, K10 and K20 a sectioning breaker be-
tween the mains connections and the amplier must
be installed inside the rack cabinet. Suggested device
is 32A/250VAC, C or D curve, 10kA.
With K2 and K3 provide a sectioning breaker between
the mains connections and the amplier. Suggested
device is 16A/250VAC, C or D curve, 10kA.
Before powering this amplier, verify that the correct
voltage rating is being used.
Verify that your mains connection is capable of satisfy-
ing the power ratings of the device.
Do not use this amplier if the electrical power cord is
frayed or broken.
Output terminals are hazardous: wiring connection to
these terminals require installation by an instructed
person and the use of ready made leads.
Take care to secure the output terminal before switch-
ing the device on.
To avoid electrical shock, do not touch any exposed
speaker wiring while the amplier is operating.
Do not spill water or other liquids into or on the amplier.
No naked ame sources such as lighted candles
should be placed on the amplier.
Do not remove the cover. Failing to do so will expose
you to potentially dangerous voltage.
It is absolutely necessary to verify this fundamental
requirement of safety and, in case of doubt, require an
accurate check by qualied personnel.
The manufacturer cannot be held responsible for
damages caused to persons, things or data due to an
improper or missing ground connection.
Contact the authorized service center for ordinary and
extraordinary maintenance.
Connection to the mains shall be done
only by a electrotechnical Skilled person
according the national requirements of
the countries where the unit is sold
ground
mains
open the lock
and insert the plug
lock the plug
N
Neutral
L
Line
GND
Protective
earth
32 1
FIGURE 4: Mains connecors; A) IEC C20 in K2 and K3;
B) AMP CPC 45A in K6, K8, K10 and K20.
A
B
Englis h
Connections
5
Make sure the power switch is off before attempting to
make any input or output connections.
By using good quality input and speaker cables, the like-
lihood of erratic signal behavior is reduced to a minimum.
Whether you make them or buy them, look for good quality
wires, connectors and soldering techniques.
5 : 1.Signal grounding
There is no ground switch or terminal on the K Series
ampliers. All shield terminals of input connections are di-
rectly connected to the chassis. This means that the unit’s
signal grounding system is automatic. In order to limit hum
and/or interference entering the signal path, use balanced
input connections.
In the interests of safety, the unit MUST always operate
with electrical safety earth connected to the chassis via
the dedicated wire in the 3-wire cable (ref. Chapter 4 : 3. AC
mains supply). Never disconnect the ground pin on the AC
mains power cord.
5 : 2.Analog input
Analog input is provided by means of two Neutrik XLR
connectors in K2 and K3 or a couple of XLR/jack hybrid
combo connectors in K6, K8, K10 and K20 ampliers (refer
to Panel D, Panel F, p. vi). Signal polarity for XLR and
TRS plugs is shown in Panel I, p. x.
5 : 3.Analog line output
Line out is provided in K2 and K3 via a couple of XLR
connectors on the rear panel (refer Panel D, p. iv). In
DSP equiped models, the output signal is pre-DSP, being a
replica of the input signal.
5 : 4.Digital Input
On DSP equiped models, the XLR input for channel 2
can switch to an AES3 digital input. The AES3/analog push-
button located nearby the channel 2 XLR input connector
toggles the XLR between analog and digital input (refer to
Panel D, Panel F, p. vi).
In AES3 mode
the channel 2 analog line out is off;
the channel 1 analog input can be used as redundant
input if the digital input fails.
The AES3 connection carries a channel pair through a
110 Ω nominal impedance wire in the form of a balanced
(differential) digital signal: in AES3 XLR connectors the iden-
tication of hot and cold pins is not an issue; take care to
never tie pin 2 or pin 3 (balanced signals) to pin 1 (ground).
Avoid the use of microphone cables in AES connections:
impedance mismatch can result in signal reections and
jitter, causing bit errors at the receiver.
5 : 5.AESOP
The AESOP standard can transport a single bidirec-
tional Fast Ethernet (IEEE 802.3u, 100 Mbit/s) control data
stream and two independent separate AES3 digital audio
monodirectional streams using one Cat5 cable.
All K Series amplier with the optional KAESOP board
installed are equipped with at least two RJ45 connectors,
each of them being a single AESOP port, capable of send-
ing and/or receiving data and audio.
If the amplier has only two RJ45 plugs, these will be
on the front panel. If four plugs are present, the rear two
will be “primary” ports, while the two on the front panel are
“secondary” ports.
Primary ports allow both data and AES3 streams;
secondary ports, on the other hand, are data-only ports,
allowing Ethernet connections only.
Cat5 standard twisted pair cables shall be used for con-
nections up to 100 meters (328 ft). RJ45 pinout must comply
to TIA/EIA-568-B and adopt the T568B scheme pinout, as
show in TABLE 1.
RJ45 connector
seen from
the front end
1 2 3 4 5 6 7 8
Color code (TIA/EIA-568-B) Pin
ORANGE / WHITE 1
ORANGE 2
GREEN / WHITE 3
BLUE 4
BLUE / WHITE 5
GREEN 6
BROWN / WHITE 7
BROWN 8
TABLE 1: EtherCON/RJ45 T568B scheme pinout.
6 | K Series | User guide
Connections | 7
Englis h
5 : 6.Loudspeaker connections
K6, K8, K10, K20 K2, K3
CLASS 3 WIRING CLASS2 WIRING
Output terminals are hazardous: wiring connection
to these terminals require installation by an
instructed person and the use of ready made leads.
Take care to secure the output terminal
before switching the device on.
Two Neutrik NL4MD speakON connectors are located
on the rear panel, each of them being a single output to
loudspeaker (refer Panel D, Panel F, p. vi).
Pins 1+ and 2+ are physically bridged to the positive pole;
pins 1– and 2– are physically bridged to the negative pole
(refer Panel J, p. x).
In order to remain within safe operating conditions,
when using low impedance loads – i.e. 4 � or less (8 � or
less in bridge mode) –, connections must be made with a
four wire cable. Use suitable wire gauges to minimize power
and damping factor losses in speaker cables.
5 : 6.1. Bridge-tied load
Bridge-tied load connection can be achieved as de-
scribed in Panel J, p. x. In analog mode, only the input
of channel 1 needs to be wired: link channel 2 to channel 1
by means of the link pushbutton located on the rear panel.
When operating with digital inputs – i.e. AES3 and
AESOP – link the channels via software: do not switch the link
pushbutton.
5 : 7.V Ext
The V Ext terminal is used to remotely manage the DSP
in K Series DSP amplier and enable remote on/off.
K Series provided with a KAESOP board have a dedicat-
ed 2 pin Phoenix connector MCV 1,5/ 2-G-3,81 - 1803426
located near the rear Ethernet ports. K Series with the RS-
485 serial port implement the V Ext connection on pin 2 (pin
7) of the RJ45 rear connector.
When the V Ext port is powered by and external 12 V
DC
(1 A max) power supply, the internal controller allows to con-
trol the DSP – if present – even without AC mains supply,
and allows serial communication – via RS-485 or ethernet
communication in KAESOP equiped models – for remote
on/off via the Armonía Pro Audio Suite software.
5 : 8.RS-485 connection
K Series ampliers without an optional KAESOP board
can be remotely controlled via an RS-485 connection.
Remote connection data cables must have an 8P8C
modular plug – namely RJ45 plug – to be inserted in the
rear port labelled “DATA PORT”.
By plugging an RJ45 plug and selecting the unit’s remote
ID via the rotary trimmers, the amp is ready to be remotely
controlled. Please note that ID numer 00 is not allowed.
The recommended arrangement of the connections is a
series of point-to-point (multidropped) nodes – i.e. a line or
bus. Ideally, the two ends of the line should be terminated
with a resistor, typically 120 � for twisted pairs. Powersoft
recommend the use of Ethernet Cat5 straight through –
patch – cables with pin/pair assignments TIA/EIA-568-B,
i.e. T568B (ref. TABLE 1).
FIGURE 5: V Ext phoenix connector MCV 1,5/ 2-G-3,81.
FIGURE 6: Data port and ID selectors for serial con-
nection; note that ID numer 00 is not allowed.
Englis h
LEDs and display menu
6
In all K Series ampliers, the combination of the front
panel buttons together with the LCD display allow the user
access to detailed information and complete control over
the amplier’s status. Each button has multiple functions
and the display shows the current active function for each
button. This chapter illustrates all the functions and settings
accessible via the amplier front panel.
All the setup and settings functions described in this
section can be also accessed through a computer with
Powersofts Armonía Pro Audio Suite software. Armonía is
a software environment that offers an easy to use end user
remote control interface and signal processing capabilities.
Armonía Pro Audio Suite is available for free on the
Armonía forum:
http://www.powersoft-audio.com/en/armonia-forum
Please note that when an Armonía client is connected to the
amplier, any local operation is overridden by the software.
6 : 1.LED chart
The LED columns on the front of the amp can work as
output voltage or current meters. When the LED bars are set
to meter output voltage, for example, the meters on the LCD
screen will indicate output current values. The vice versa is
true: LED bars set as output current meters, LCD display
bars become output voltage meters.
Color Solid Blinking
RED
Signal clipping
OR
channel muted
for protection
1
Tone
detection
problem
YELLOW
Temperature
above 85°C
OR
output level
2
-2 dB
Critical
temperature
(80° - 85°C)
GREEN output level
2
-3 dB
GREEN output level
2
-6 dB
GREEN output level
2
-9 dB
GREEN output level
2
-15 dB
GREEN
input signal is above
-60 dBV
OR
output level
2
-18 dB
1
In case of a short circuit protection event, the LCD screen will read “PROT”.
2
With respect to the output clipping threshold.
TABLE 2: LED chart.
6 : 2.Front display
When the amp is turned on, the main screen appears
after a short presentation.
The rst line of the screen will read “WAIT” while the sys-
tem undergoes an initial batch of internal tests to determine
the status of the amp. If all parameters are normal, “READY”
will replace “WAIT” on the display.
System parameters are continuously monitored by the
internal controller. If any parameter value should fall out of
its correctly operating range, a code error relative to that
particular parameter will appear on the third line of the LCD
meter at the corresponding channel number. Should the
parameter be out of range for both adjacent channels, the
error code will appear in between the two compromised
channels.
The fourth line of the front panel LCD screen shows the
functions of the buttons immediately below. A beep con-
rms that a button has been pressed; please note that this
sound is not mutable.
Pressing the button directly below the “menu” label on
the LCD screen gives access to the amplier’s main menu.
If an Armonía client is connected to the amplier, a yellow
shadow will appear in the software workspace view, signal-
ing local access to the amplier.
6 : 2.1. How to navigate the main menu
The K Series main menu can be accessed by press-
ing the rst button on the right, underneath the LCD label
menu”.
The up and down arrows allow to scroll the menu items.
To access further menu voices branching off a specic
menu item, select it and press the “menu” button once.
Some submenus in the K Series amps require the user
to set a numerical value for specic parameters using the
front panel buttons. In order to speed this process up, these
submenus dedicate two of the four available buttons to
switching to a fast or slow parameter increment mode.
lock
mute mute menu
CH1 READY READY CH2
V I VI
FIGURE 7: K Series front display.
8 | K Series | User guide
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powersoft K6 DSP+AESOP Manuel utilisateur

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Amplificateurs audio
Taper
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