Crate Amplifiers ThunderBass BX-440H Manuel utilisateur

ThunderBass BX-440H
Crate Amplifiers
Marque
Crate Amplifiers
Modèle
ThunderBass BX-440H
Catégorie
Égaliseurs audio
Taper
Manuel utilisateur

Ce manuel convient également à

BX-440H
OK
CONTOUR
CONTOUR
ON/OFF
INCREASE
GAIN
DECREASE
GAIN
— 15dB
MASTER
LINE OUT
LEVEL
EFFECTS
BLEND
HEADPHONES
LEVEL
POST/PRE
LIMIT
POWERPOWER
®
GAIN
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
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0
1
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2
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46
0
1
10
2
3
5
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8
46
1
2
37
9
8
46
INPUT
HEADPHONES
BX-4115
INPUT
CONTOUR
GAIN
CONTOUR
ON/OFF
— 15dB
MASTER
LINE OUT
LEVEL
EFFECTS
BLEND
HEADPHONES
LEVEL
LIMIT
®
SPECTRUM DEPTH RATE
ACTIVE
CHORUS
ON/ OFF
HEADPHONES
POWERPOWER
OK
INCREASE
GAIN
DECREASE
GAIN
0
1
10
2
3
5
7
9
8
46
1
2
37
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
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8
46
0
1
10
2
3
5
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9
8
46
FULL
500
250
0
1
10
2
3
5
7
9
8
46
40 100 225 625 1.6k 4k 8k 16k
POST/PRE
POWERPOWER
40 100 225 625 1.6k 4k 8k 16k
EQUALIZATION
MASTER
INPUT
EQUALIZATION
MASTER CHORUS
INPUT
FREQUENCY BALANCE
100 Hz 1kHz
300 Hz
LO HI
CROSSOVERCROSSOVER
FREQUENCY BALANCE
100 Hz 1kHz
300 Hz
LO HI
CROSSOVERCROSSOVER
for the
Owner’s Manual
BX-440H / BX-4115
BX-440H / BX-4115
THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERATION. IN ORDER TO PROLONG THE LIFE OF
THE UNIT AND PREVENT ACCIDENTAL DAMAGES OR INJURY, PLEASE FOLLOW THESE PRECAUTIONARY GUIDELINES:
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT OPEN CHASSIS; DO NOT DEFEAT OR REMOVE THE GROUND PIN OF THE POWER
CORD; CONNECT ONLY TO A PROPERLY GROUNDED AC POWER OUTLET.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION: NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION: IF YOU USE AUDIO AMPLIFIERS PROFESSIONALLY OR IN WORK RELATED SITUATIONS AS AN EMPLOYEE, THE OCCUPATIONALSAFETY
AND HEALTH ADMINISTRATION (OSHA) HAS SPECIFIED REGULATIONS CONCERNING PROLONGED EXPOSURE TO HIGH SOUND PRESSURE LEV-
ELS. PLEASE REFER TO THE CODE OF FEDERAL REGULATIONS DOCUMENT 29CFR1910 FOR ADDITIONAL INFORMATION.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
ATTENTION: POUR REDUIRE D'ELECTROCUTION NE PAS
ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE N'EST REPRABLE
PAR L'UTILISATEUR. POUR TOUTE REPARATION, S'ADRESSER A UN
TECHNICIEN QUALIFIE.
VORSICHT
ELEKTRISCHE SCHLAGGEFAHR
NICHT OFFENEN
VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT
DEN DECKEL ABENHMEN. INTERNE TEILE KONNEN NICHT VOM
BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM
WARTUNGSPERSONAL ZU UBERLASSEN.
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
"REFERREZ-VOUS AU MANUAL D'UTILISATION"
"UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN"
EXPLANATION OF
GRAPHICAL SYMBOLS:
"DANGEROUS VOLTAGE"
"DANGER HAUTE TENSION"
"GEFAHLICHE SPANNUNG"
=
=
2
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
Congratulations!
You are now the proud owner of the innovative Crate BX-440H/BX-4115 ThunderBass amp. These fea-
ture-packed powerhouses offer you solid state reliability with classic Crate performance.
Like all Crate products, your BX-440H/BX-4115 ThunderBass amp is Musician Made in the U.S.A., using
only the best components. Extensive testing at many stages in its production, including a final “audition” by
a skilled musician, insures you that your BX-440H/BX-4115 ThunderBass amp is the best it can be.
In order to get the best possible performance, please read this manual before you use the amplifier.
And thank you
for choosing
.
Contents:
Introduction . . . . . . . . . . . . . . . . . . . . . . . . .3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
The Front Panel . . . . . . . . . . . . . . . . . . . . . .4
The Rear Panel . . . . . . . . . . . . . . . . . . . . . .5
Using The Biamp Capabilities: BX-440H . . .6,7
Using The Biamp Capabilities: BX-4115 . . .8,9
Some Suggested Settings . . . . . . . . . . . . . .10
System Block Diagram . . . . . . . . . . . . . . . .11
Technical Specifications . . . . . . . . . .back cover
Introduction:
Crate’s new BX-440H/BX-4115 ThunderBass amplifiers are feature-packed, professional strength power-
houses which can deliver incredible bass sounds. Rugged construction, reliable American craftsmanship and
solid state electronics add up to create very roadworthy, stage-ready gear.
The BX-440H packs solid performance into a compact head unit, contained in a rugged Tolex
®
covered
cabinet. Its side-mounted handle and heavy duty rubber feet on two sides increase its value to those musi-
cians who are always “on the go.” The BX-4115 combines the same great bass amp with an equally out-
standing 15” ThunderBass American-made transducer for a small but hard hitting combo amp suitable for
the club, small hall or recording studio.
Both amplifiers will deliver 440 watts into 4 ohms, or 250 watts into 8 ohms. A listing of the features of
these amps is given below.
Features:
Additional information can be found on the pages indicated.
• Solid state circuitry for reliable service and incredible tones.
• Crate’s APM (Automatic Power Maximizer) limiter circuit for the most output without distortion.
• Variable input gain control with -15dB pad switch and 3 input LEDs for the best match between your
bass and the amplifier (page 4).
• Switchable contour control (page 4).
• 8-band graphic equalizer for optimum tone control (page 4).
• Biamp high and low outputs with adjustable crossover frequency and low-to-high balance (page 4).
• Switchable chorus with adjustable spectrum, rate and depth controls (BX-4115 only) (page 4).
• Balanced line out with adjustable level control and “pre/post” switch (pages 4 and 5).
• Headphone jack with adjustable level control for private practice sessions (page 4).
• Effects loop for noiseless use of your favorite processors and effects (page 5).
• Rugged Tolex
®
covered cabinets for durability with nickel and chrome accents for high cosmetic appeal.
• Removable heavy duty casters for ease of transportation (BX-4115 only).
• Musician made in the U.S.A.
• Crate’s exclusive 5-year warranty (U.S. only). Outside U.S. see local dealer for warranty terms and
information.
3
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
1. INPUT: Connect your bass to the amplifi-
er here.
2. GAIN: Use this control to properly match
the output of your bass to the amplifier. With
the amp’s Master level control at “0”, begin
playing your bass as you normally would.
Watch the adjacent LEDs (#4) as you turn up
the Gain control: the proper setting for the Gain
control is the one where the “OK” LED lights
most often while playing. If the “Decrease
Gain” LED stays lit even with the Gain control
turned down low, press in the -15dB button
(#3) and continue adjusting the Gain control
until the proper setting is obtained.
3. -15dB: If your bass has active electronics
or “hot” pickups, its output signal may need to
be padded to get the best signal to noise setting
from the Gain control. If the “Decrease Gain”
LED stays lit with the Gain control turned down
low, press in the -15dB button.
4. LEDs: These three LEDs are your guide to
properly setting the Gain control. Follow the
steps given for the Gain control (#2) until the
“OK” LED lights most often while you play.
5. CONTOUR: This control allows you to
make additional changes to your tone and is
active only when the Contour On/Off switch
(#6) is pressed in. As the “wave” icons indicate
you can enhance both the lows and highs at the
same time, or add mid punch.
6. CONTOUR ON/OFF: Use this switch to
engage the contour circuitry. With the switch
pressed in, the Contour control (#5) is active.
7. EQUALIZATION: This eight-band graphic
equalizer allows you to custom tailor your tone.
Each slider controls the frequency indicated
directly below it and offers a cut or boost of
10dB at various frequencies from 40Hz to
16kHz
8. MASTER LEVEL: Use this control to set
the output level of the amplifier. This controls
the signal level at the Speaker Output jacks
(#30), as well as the Preamp Out jack (#28).
9. LIMIT: The amplifier employs Crate’s
APM Automatic Power Maximizer protection
circuitry to keep the output distortion-free even
at high volume levels. Whenever the output
nears its clipping point, the limit circuit kicks in
to keep the output clean. The Limit LED lights
up when the APM limiter circuit is activated.
Occasional flashing of the LED is normal. Very
frequent flashing or constant illumination indi-
cates the output level is too high; reduce the
Master level control (#8) and/or your instru-
ment’s output until the LED flashes less.
10. LINE OUT LEVEL: This controls the level
of the signal at the Balanced Line Out jack
(#31). You may also use this output (or the
headphone jack, #14) to run a signal to a tuner.
11. POST/PRE: This switch selects the tap
point for the signal at the Balanced Line Out
jack. With the switch out, the signal is tapped
before the eq, contour and effects loop (“pre”).
With the switch pressed in, the signal is tapped
after the eq, contour and effects loop (“post”).
12. EFFECTS BLEND: This control propor-
tions the amount of effect added to the signal
going to the power amp stage. At the “0” posi-
tion the signal is “dry” (no effect added); as you
bring the control towards “10” the amount of
effect applied increases. (“5” is a 50/50 blend of
dry signal and effects.)
13. HEADPHONES LEVEL: This control
adjusts the signal level at the Headphones jack
(#14).
14. HEADPHONES: Plug a pair of stereo
headphones in here for private listening. The
signal at this jack is post Gain and post EQ. The
level of the signal here is determined by the set-
ting of the Headphones Level control (#13).
Using headphones does not disable the speak-
er outputs or the internal speaker (BX-4115).
You may also use this output (or the line out
jack, #31) to run a signal to a tuner.
15. FREQUENCY: This sets the crossover
point when using the amplifier in the biamp
mode (using two power amplifiers, one for the
low frequencies, one for the highs). Please see
the section entitled “Using the Biamp
Capabilities” on pages 6 - 9 for more details
about biamping.
16. BALANCE: This adjusts the relative level
between the low frequency and the high fre-
quency biamp output signals. Please see the
section entitled “Using the Biamp Capabilities”
on pages 6 - 9 for more details.
17-21, Chorus Section, BX-4115 Only:
17. CHORUS ON/OFF: This switch turns the
Chorus section on when pressed in, off when
switched out.
18. SPECTRUM: This control allows you to
adjust which frequencies (from the entire range
to only above 500Hz) are enhanced by the
chorus effect. The further to the left (toward
“Full”) you turn the control the broader the
spectrum of the chorus effect.
19. DEPTH: This control sets the amount of
chorus enhancement: towards “0” for less,
towards “10” for more.
20. RATE: This control sets the speed for the
chorus effect: towards “0” for slower, towards
“10” for faster.
21. ACTIVE: This LED lights when the chorus
effect is engaged. The LED pulses in relation to
the rate of the chorus.
22. POWER: This two-position switch turns the
amp on and off, “on” being the UP position.
The switch lights up when the amp is turned on.
The Front Panel:
BX-4115
EQUALIZATIONEQUALIZATION
MASTERMASTER CHORUSCHORUS
INPUTINPUT
INPUT
CONTOUR
GAIN
CONTOUR
ON/OFF
— 15dB
MASTER
LINE OUT
LEVEL
EFFECTS
BLEND
HEADPHONES
LEVEL
LIMIT
®
SPECTRUM DEPTH RATE
ACTIVE
CHORUS
ON/ OFF
HEADPHONES
POWERPOWER
OK
INCREASE
GAIN
DECREASE
GAIN
0
1
10
2
3
5
7
9
8
46
1
2
37
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
0
1
10
2
3
5
7
9
8
46
FULL
500
250
0
1
10
2
3
5
7
9
8
46
40 100 225 625 1.6k 4k 8k 16k
POST/PRE
FREQUENCY BALANCE
100 Hz 1kHz
300 Hz
LO HI
CROSSOVERCROSSOVER
1
3
9 11 146
2 5 8 15 16 1718 19 20 21 2210 12 1374
4
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
23. POWER CORD: Connect the male end
of this cord to a properly grounded AC
power outlet. Use only a grounded outlet!
DO NOT defeat the ground pin of the
cord! If the amplifier is used outside of the
United States, see the area’s Crate dealer for
the proper power cord or consult a local pro-
fessional electrician.
24. EFFECTS LOOP RETURN: When
using an external signal processor, the best
results will be obtained when the device is
connected to the amplifier’s effects loop for
virtually noise-free operation. This jack
receives the output signal from such a
processor
25. EFFECTS LOOP SEND: This unbal-
anced jack lets you send a signal out to an
external effects processor or tuner. The signal
at this jack is post-EQ, pre-Master. Connect
this to the input jack of the processor or
tuner. Use shielded cables with mono 1/4”
plugs for connecting the Effects Loop.
26. BIAMP LOW OUT: When used in
the biamp mode, this output connects to
the low frequency power amplifier. See
the section entitled “Using the Biamp
Capabilities” on pages 6 - 9 for details.
27. BIAMP HIGH OUT: When used in
the biamp mode, this output connects to
the high frequency power amplifier. See
the section entitled “Using the Biamp
Capabilities” on pages 6 - 9 for details.
28. PREAMP OUT: A pre-amplified line
level signal may be tapped from this jack for
sending to an external amplifier, powered
monitor, recording console, mixing board or
effects processor. This is an unbalanced,
mono 1/4” jack.
29. POWER AMP IN: A pre-amplified line
level signal may be sent directly into the bass
amp’s power amp (as when slaving two
amplifiers together, for example). Connection
to this jack interrupts the signal from the inter-
nal preamp to the power amp. The Preamp
Out (#28) signal is not interrupted.
30. SPEAKERS: Use these jacks to connect
the amp to your speaker cabinet(s). Use
heavy duty speaker cables with mono 1/4”
plugs. These jacks are wired in parallel. Don’t
use cabinet combinations resulting in imped-
ance loads below 4 ohms. Use the following
chart to help determine parallel loads. If in
doubt, ask your dealer.
Cab Imp. # Cabs Total Imp.
8 ohms 2 4 ohms
16 ohms 2 8 ohms
16 ohms 4 4 ohms
31. BALANCED LINE OUT: Use this 3-pin
XLR jack to send a line level signal to the
house sound board or mixing console. The
level of the signal at this jack is determined by
the setting of the Line Out Level control on
the front panel (#10). This signal is switch-
able to be either pre or post EQ through the
front panel Pre/Post switch(#11).
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
MODEL
SERIAL #
1200W MAX / 120V / 60Hz
BX-440H
CAUTION: CHASSIS SURFACE HOT.
ATTENTION: SURFACIE DE CHASSIS CHAUDE.
AC LINE IN
The Rear Panel:
5
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
Using the Biamp Capabilities – BX-440H:
6
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
About Biamping: The Biamp High and Low outputs of the BX-440H and the BX-4115 allow for a number of ways
to “biamp” your system: that is, using two amplifier/speaker combinations to share the task of reproducing the full
range of your bass. Biamping increases each amplifier’s efficiency by allowing it to “focus” on a certain frequency
range, rather than operating full range. The results of biamping include cleaner sound and more output power than
that of a single-amped system, which is especially useful during high volume live performances.
There are a number of different ways to use the BX-440H and the BX-4115 in biamp configurations. The examples
on the following pages show several biamp possiblities – you may find others. Your Crate dealer can assist you in
assembling the custom biamp ThunderBass rig to best suit your playing style and venue.
The Biamp Controls: The front panel Crossover Frequency
control (#15) sets the point where the low frequency signal rolls
off and the high frequency signal begins. This control is variable
from 100Hz to 1kHz. Adjust this control to best suit the fre-
quency range of your low frequency speaker cabinet. The
Crossover Balance control (#16) proportions the signal between
the high and the low output jacks (#26 and 27, rear panel).
Adjust this control for the most appealling blend of lows and
highs.
Example 1:
With the BX-440H and a BXE-18
cabinet for the low end; a BX-
220H and a BXE-410H cabinet for
the high end:
Plug your bass into the BX-440H, then:
(1) Run a shielded cable from the
biamp high out jack of the BX-440H to
the power amp in jack of the BX-220H.
(2) Run a speaker cable from the
speaker out jack of the BX-220H to the
input jack of the BXE-410H.
(3) Run a shielded cable from the
biamp low out jack of the BX-440H to
its power amp in jack.
(4) Run a speaker cable from the
speaker out jack of the BX-440H to the
direct in jack of the BXE-18.
Adjust the Crossover Frequency and
Balance controls for the best sound.
FREQUENCY BALANCE
100 Hz 1kHz
300 Hz
LO HI
CROSSOVER
15 16
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
MODEL
SERIAL #
1200W MAX / 120V / 60Hz
BX-440H
CAUTION: CHASSIS SURFACE HOT.
ATTENTION: SURFACIE DE CHASSIS CHAUDE.
AC LINE IN
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
PREAMP
OUT
EFFECTS
LOOP
BALANCED
LINE OUT
PWR AMP
IN
RETURN
SEND
S
P
E
A
K
E
R
S
150W @ 8 OHMS
220W @ 4 OHMS
MIN. LOAD
PREAMP
OUT
EFFECTS
LOOP
BALANCED
LINE OUT
PWR AMP
IN
RETURN
SEND
S
P
E
A
K
E
R
S
150W @ 8 OHMS
220W @ 4 OHMS
MIN. LOAD
BX-220H
BX-220H
BX-440H
BX-440H
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
HIGH
OUT
47-146-04
SERIAL #
MODEL:
CRATE BXE-18
POWER HANDLING: 200 WATTS
IMPEDANCE: 8 OHMS
CROSSOVER FREQUENCY: 200Hz
DIRECT
IN
CROSSOVER
INPUTS
BXE-18
BXE-410H
direct
in
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
HIGH
OUT
47-146-04
SERIAL #
MODEL:
CRATE BXE-18
POWER HANDLING: 200 WATTS
IMPEDANCE: 8 OHMS
CROSSOVER FREQUENCY: 200Hz
DIRECT
IN
CROSSOVER
INPUTS
input
from
bass
1
3
2
4
TO
BXE-410H
TO
BXE-18
1
3
2 4
Using the Biamp Capabilities – BX-440H (con’t):
7
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
MODEL
SERIAL #
1200W MAX / 120V / 60Hz
BX-440H
CAUTION: CHASSIS SURFACE HOT.
ATTENTION: SURFACIE DE CHASSIS CHAUDE.
AC LINE IN
300 WATTS MAX
120V 60 Hz
380 W @ 4 OHMS
200 W @ 8 OHMS
SPEAKER
OUTPUTS
380 W @ 4 OHMS
200 W @ 8 OHMS
SPEAKER
OUTPUTS
INPUT
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS:
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
SERIAL #MODEL
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
HIGH
OUT
47-146-04
SERIAL #
MODEL:
CRATE BXE-18
POWER HANDLING: 200 WATTS
IMPEDANCE: 8 OHMS
CROSSOVER FREQUENCY: 200Hz
DIRECT
IN
CROSSOVER
INPUTS
BXE-18
BXE-410H
direct
in
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
HIGH
OUT
47-146-04
SERIAL #
MODEL:
CRATE BXE-18
POWER HANDLING: 200 WATTS
IMPEDANCE: 8 OHMS
CROSSOVER FREQUENCY: 200Hz
DIRECT
IN
CROSSOVER
INPUTS
input
2
4
1
3
BX-440H
power
amp
INPUT
from
bass
1
3
BX-440H
power
amp
TO
BXE-410H
TO
BXE-18
2 4
INPUT
0
10
4
6
82
VOLUME
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
TO REDUCE THE RISK OF FIRE OF OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
AVIS:
WARNING:
CAUTION – HOT!
MODEL
500 WATTS MAX. • 60 Hz • 120 VAC
SERIAL #
MADE IN THE U.S.A. BY SLM ELECTRONICS
1400 FERGUSON AVENUE • ST. LOUIS, MO 63133
BXE-210HP
A
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
MODEL
SERIAL #
1200W MAX / 120V / 60Hz
BX-440H
CAUTION: CHASSIS SURFACE HOT.
ATTENTION: SURFACIE DE CHASSIS CHAUDE.
AC LINE IN
BX-440H
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
HIGH
OUT
47-146-04
SERIAL #
MODEL:
CRATE BXE-18
POWER HANDLING: 200 WATTS
IMPEDANCE: 8 OHMS
CROSSOVER FREQUENCY: 200Hz
DIRECT
IN
CROSSOVER
INPUTS
BXE-18
direct
in
2
BXE-210HP
BX-440H
BXE-210HP
CAUTION – HOT!
AC
OUTLET
AC LINE IN
POWER
INPUT
0
10
4
6
82
VOLUME
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
TO REDUCE THE RISK OF FIRE OF OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
AVIS:
WARNING:
CAUTION – HOT!
MODEL
500 WATTS MAX. • 60 Hz • 120 VAC
SERIAL #
MADE IN THE U.S.A. BY SLM ELECTRONICS
1400 FERGUSON AVENUE • ST. LOUIS, MO 63133
100/120VAC: 250V
POWERAMP
OUTPUT
220 WATTS @
4 MIN.LOAD
BXE-210HP
A
3
1
from
bass
TO
BXE-18
1
3
2
Example 2:
With the BX-440H and a BXE-410H
cabinet for the high end; a mono (or
mono-bridged) power amp and a
BXE-18 cabinet for the low end:
Plug your bass into the BX-440H, then:
(1) Run a shielded cable from the biamp
high out jack of the BX-440H to its power
amp in jack.
(2) Run a speaker cable from the speaker
out jack of the BX-440H to the input jack
of the BXE-410H.
(3) Run a shielded cable from the biamp
low out jack of the BX-440H to the input
jack of the mono power amp.
(4) Run a speaker cable from the speaker
out jack of the mono power amp to the
direct in jack of the BXE-18.
Adjust the Crossover Frequency and
Balance controls for the best sound.
Example 3:
With the BX-440H and a BXE-18
cabinet for the low end; a BX-
210HP powered cabinet for the
high end:
Plug your bass into the BX-440H, then:
(1) Run a shielded cable from the
biamp low out jack of the BX-440H to
its power amp in jack.
(2) Run a speaker cable from the
speaker out jack of the BX-440H to the
input jack of the BXE-18.
(3) Run a shielded cable from the
biamp highout jack of the BX-440H to
the input jack of the BXE-210HP.
Adjust the Crossover Frequency and
Balance controls for the best sound.
Using the Biamp Capabilities – BX-4115:
8
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
Example 1:
With the BX-4115 for the low end; a
BX-220H and a BXE-410H cabinet
for the high end:
Plug your bass into the BX-4115, then:
(1) Run a shielded cable from the biamp
low out jack of the BX-4115 to its power
amp in jack. (Connection to the BX-
4115’s speaker is already made through
the factory-installed speaker out cable.)
(2) Run a shielded cable from the biamp
high out jack of the BX-4115 to the power
amp in jack of the BX-220H.
(3) Run a speaker cable from the speaker
out jack of the BX-220H to the input jack
of the BXE-410H.
Adjust the Crossover Frequency and
Balance controls for the best sound.
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
PREAMP
OUT
EFFECTS
LOOP
BALANCED
LINE OUT
PWR AMP
IN
RETURN
SEND
S
P
E
A
K
E
R
S
150W @ 8 OHMS
220W @ 4 OHMS
MIN. LOAD
BX-220H
BXE-410H
BX-220H
BXE-410H
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
ST. LOUIS, MO 63133
HIGH
OUT
47-146-04
SERIAL #
MODEL:
CRATE BXE-18
POWER HANDLING: 200 WATTS
IMPEDANCE: 8 OHMS
CROSSOVER FREQUENCY: 200Hz
DIRECT
IN
CROSSOVER
INPUTS
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
MODEL
SERIAL #
1200W MAX / 120V / 60Hz
BX-440H
CAUTION: CHASSIS SURFACE HOT.
ATTENTION: SURFACIE DE CHASSIS CHAUDE.
AC LINE IN
BX-4115
1
PREAMP
OUT
EFFECTS
LOOP
BALANCED
LINE OUT
PWR AMP
IN
RETURN
SEND
S
P
E
A
K
E
R
S
150W @ 8 OHMS
220W @ 4 OHMS
MIN. LOAD
3
2
from
bass
TO
BXE-410H
2
1
3
TO
BX-4115
Example 2:
With the BX-4115 for the low end; a
BX-2115 for the high end:
Plug your bass into the BX-4115, then:
(1) Run a shielded cable from the biamp
low out jack of the BX-4115 to its power
amp in jack. (Connection to the BX-
4115’s speaker is already made through
the factory-installed speaker out cable.)
(2) Run a shielded cable from the biamp
high out jack of the BX-4115 to the power
amp in jack of the BX-2115. (Connection
to the BX-2115’s speaker is already made
through the factory-installed speaker out
cable.)
Adjust the Crossover Frequency and
Balance controls for the best sound.
BX-2115
MADE IN THE U.S.A.
BY SLM ELECTRONICS
1400 FERGUSON AVE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:
TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
MODEL
SERIAL #
1200W MAX / 120V / 60Hz
BX-440H
CAUTION: CHASSIS SURFACE HOT.
ATTENTION: SURFACIE DE CHASSIS CHAUDE.
AC LINE IN
BX-4115
1
MADE IN THE U.S.A.
BY SLM ELECTRONICS
PREAMP
OUT
EFFECTS
LOOP
BALANCED
LINE OUT
PWR AMP
IN
RETURN
SEND
S
P
E
A
K
E
R
S
150W @ 8 OHMS
220W @ 4 OHMS
MIN. LOAD
BX-2115
BX-4115
PREAMP
OUT
EFFECTS
LOOP
BALANCED
LINE OUT
PWR AMP
IN
RETURN
SEND
S
P
E
A
K
E
R
S
150W @ 8 OHMS
220W @ 4 OHMS
MIN. LOAD
2
TO
BX-2115
TO
BX-4115
2
1
from
bass
Using the Biamp Capabilities – BX-4115 (con’t):
9
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
Example 3:
With the BX-4115 for the low end; a
BX-210HP powered cabinet for the
high end:
Plug your bass into the BX-4115, then:
(1) Run a shielded cable from the biamp
low out jack of the BX-4115 to its power
amp in jack. (Connection to the BX-
4115’s speaker is already made through
the factory-installed speaker out cable.)
(2) Run a shielded cable from the biamp
high out jack of the BX-4115 to the input
jack of the BXE-210HP.
Adjust the Crossover Frequency and
Balance controls for the best sound.
SPECTRUM DEPTH RATE
CHORUS
ON/ OFF
0
1
10
2
3
5
7
9
8
46
FULL
500
250
0
1
10
2
3
5
7
9
8
46
40 100 225 625 1.6k 4k 8k 16k
40 100 225 625 1.6k 4k 8k 16k
40 100 225 625 1.6k 4k 8k 16k
EQUALIZATION
CONTOUR
CONTOUR
ON/OFF
MASTER
LIMIT
1
2
37
9
8
46
0
1
10
2
3
5
7
9
8
46
40 100 225 625 1.6k 4k 8k 16k
OUT
OUT
EQUALIZATION
CONTOUR
CONTOUR
ON/OFF
MASTER
LIMIT
1
2
37
9
8
46
0
1
10
2
3
5
7
9
8
46
IN
IN
EQUALIZATION
CONTOUR
CONTOUR
ON/OFF
MASTER
LIMIT
1
2
37
9
8
46
0
1
10
2
3
5
7
9
8
46
EQUALIZATION
CONTOUR
CONTOUR
ON/OFF
MASTER
LIMIT
1
2
37
9
8
46
0
1
10
2
3
5
7
9
8
46
IN
IN
(4115 ONLY)
(4115 ONLY)
CHORUS
IN
IN
IN
IN
Some Suggested Settings:
10
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
System Block Diagram:
11
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
INPUT
POWER
AMP
-15dB PAD
GAIN
PREAMP
OUT
EFFECTS
SEND
PEAK
LED
8 BAND
GRAPHIC
ON / OFF
CHORUS ON
PRE
POST
EFFECTS
RETURN
LIMIT
LED
SPECTRUM DEPTH RATE
MASTER
HEADPHONE
LEVEL
∑
POWER
AMP IN
SPEAKER
OUT
SPEAKER
OUT
HEAD-
PHONES
LINE OUT
LEVEL
BALANCED
LINE OUT
CHORUS
CONTOUR
EFFECTS
BLEND
BX-4115
ONLY
Technical Specifications:
CRATE/SLM ELECTRONICS, A DIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON AVENUE, ST. LOUIS, MO 63133
47-593-01 • 06-96
CRATE continually develops new products, as well as improves existing ones. For this reason,
specifications and information in this manual are subject to change without notice.
BX-440H / BX-4115
BX-440H / BX-4115 ThunderBass Amplifier
Maximum Input Signal Level Accepted 17 volts peak to peak (-15dB switch pressed in)
Input Power Requirements 120VAC, 60Hz, 1200 watts max.
Input Impedance 500k ohms (-15dB switch out), 75k ohms (-15dB switch in)
Signal to Noise Ratio 75dB typical
Output Power Rating 250 watts RMS @ < 5% THD w/8 ohm load, 120VAC line
440 watts RMS @ < 5% THD w/4 ohm load, 120VAC line
Gain @ 1kHz 67dB with EQ flat, Contour off
EQ Section 20dB range (±10dB) @ 40Hz, 100Hz, 225Hz, 625Hz, 1.6kHz,
4kHz, 8kHz and 16kHz
Internal Speaker
Size/Type 15” ThunderBass
Magnet 56 oz
Voice Coil 3”
Impedance 8 ohms
Size and Weight, BX-440H 7-1/8”H
1
x 19-1/2”W
1
x 15-1/4”D, 42lbs.
Size and Weight, BX-4115 23-5/8”H
2
x 24”W x 15-3/4”D, 87lbs.
1
including rubber feet
2
without casters installed; casters add 1-3/4” to height
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Crate Amplifiers ThunderBass BX-440H Manuel utilisateur

ThunderBass BX-440H
Crate Amplifiers
Marque
Crate Amplifiers
Modèle
ThunderBass BX-440H
Catégorie
Égaliseurs audio
Taper
Manuel utilisateur
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