DIABLO MOSF AMP MAN 111607.cdr
 500.2 D800.2 D10002,D1300.2
as ; 5 AE Tr AR AUDIO
Nu 4 ba OR
— D250.4 D350.4 A - D550.4
~ 4-CHANNEL MOSFET BRIDGEABLE CAR AUDIO
ata
19
5-CHANNEL MOSFET BRIDGEABLE CAR AUDIO AMPLIFIER
+ - 3 о ®
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~~ MoNOBLOCK MOSFET CAR AUDIO AMPLIFIER
pr .
T1.2007
— "AUDIO SYSTEMS
| Хх € 3 BOSS Audio Systems * 3451 Lunar Court « Oxnard, CA 93030
www.bossaudio.com
tech support: www.bossaudio.com/support 800.999.1236
AUDIO SYSTEMS
User’s Manual
2-CHANNEL
MOSFET BRIDGEABLE
CAR AUDIO AMPLIFIERS
4-CHANNEL
MOSFET BRIDGEABLE
CAR AUDIO AMPLIFIERS
5-CHANNEL
MOSFET BRIDGEABLE
R AUDIO AMPLIFIER
MONOBLOCK
MOSFET
DIO AMPLIFIER
L
3055
AUDIO SYSTEMS
D400.2 Two Channel
D500.2 Amplis
D600.2
D800.2
D1000.2
D1300.2
D350.4 MOSFE T Car Audio
" mplifiers
D450.4
D550.4
D1800.5 feces...
mplifier
D 1 200M MOSFET Car Audio
Amplifier
Congratulations on your
purchase of a 3085
AUDIO SYSTEMS
DIABLO Amplifier.
It has been designed, engineered
and manufactured to bring you
the highest level of performance
and quality, and will afford you
years of listening pleasure.
Thank you for making 308$
AUDIO SYSTEMS
your choice for car audio
entertainment!
USER’S MANUAL
page CONTENTS
2 Introduction
What is included?
3 Features
3 About 2 Ohm operation
4 General precautions
4 Installation precautions
4 Mounting the amplifier
5 Connecting the amplifier
6 Low level input wiring
8 High level input wiring
10 2CH Power and Speaker wiring
2CH and Bridged Modes
11 2CH Power and Speaker wiring
TriMode
12 4CH Power and Speaker wiring
4CH and Bridged Modes
13 4CH Power and Speaker wiring
TriMode
14 5CH Power and Speaker wiring
5CH Mode
15 5CH Power and Speaker wiring
Bridged Mode
16 5CH Power and Speaker wiring
TriMode
17 MonoBlock Power and Speaker wiring
18 Troubleshooting
19 Specifications
DIABLO MOSFET Amplifier User's Manual - page 1
Introduction
With the 39SS DIABLO MOSFET
amplifier series, we are introducing
eleven new amplifiers, all designed in
the USA. This new series includes a
monoblock amp, six 2-channel, four
4-channel amplifiers and a 5-channel
amp.
All DIABLO models feature variable
low pass and high pass crossovers
and variable input gain controls. They
also incorporate an input voltage
sensistivity selector for added system
flexibility.
For further flexibility in the use of a
subwoofer, 0-+18dB Bass Boost
control has been included on all
amplifiers. You can control the
subwoofer level with the remote level
control module.
3053 understands that amplifiers are
placed in many different kinds of
installations, so we incorporated a very
flexible system of controls in these
amplifiers in order to help you integrate
the amp into your system regardless
of the nature of your input source.
DIABLO MOSFET Amplifier User's Manual - page 2
What is included?
When first unpacking your new
amplifier, please check first that the
package contains all of the items
below. If something is missing, contact
the store where you purchased the
amplifier.
e DIABLO amplifier
* Remote subwoofer level control
e High input cable with connector
* Four (4) mounting screws
Features
Your new DIABLO amplifier features
the following:
* Class A-B operation
* Bridgeable outputs
(except D1200M)
* Tri-Mode capable
(except D1200M)
* MOSFET PWM (Pulse Width
Modulated) Power Supply
* 2 Ohm stable stereo operation
with output power increase
* Thermal and speaker short
protection
* Soft turn-on circuit
* Remote turn-on/turn-off circuit
* Variable input gain control
* Variable low pass crossover(s)
* Variable high pass crossover(s)
* Variable 0 to +18dB Bass Boost
* Nickel-plated RCA low level and
high level inputs
* LED power and protection
indicators
* Black anodized heatsink
* Remote subwoofer level control
About 2 Ohm operation
Your DIABLO amplifier has been
designed to operate efficiently at loads
down to 2 Ohms. This means that you
can install four 8 Ohm speakers per
channel, when using parallel wiring.
Increasing the number of woofers per
channel at low frequencies (below
100Hz) produces an acoustic coupling
effect. This acoustic coupling effect
increases your power output by about
3dB per speaker, or the equivalent of
an additional 10W per speaker.
When operating at 2 Ohms, the
amplifiers will increase their output
power by approximately 50%. The
current draw will also increase by
about the same amount, so be sure
you have enough current to run the
amplifiers into a 2 Ohm load.
If you lack adequate current, your
music reproduction will be distorted.
DIABLO MOSFET Amplifier User's Manual - page 3
General precautions
Before installing and using your
new 3055 amplifier, please be-
come familiar with all the infor-
mation contained in this manual.
Please keep this manual in a safe
place for future reference.
* Do not open or attempt to repair
this unit yourself. Dangerous high
voltages are present which may result
in electric shock. Refer any repairs to
a qualified service technician.
* To avoid risk of electronic shock or
damage to the amplifier, do not permit
any of this equipment to become
damp or wet from water or drinks. If
this does occur, immediately unplug
the power wires and send the amplifier
to your local dealer or service center
as soon as possible.
* |f there is smoke or any peculiar
odor present during use or if there is
damage to any of the component
enclosures, immediately unplug the
power wire and send the amplifier to
your local dealer or service center as
soon as possible .
Installation precautions
Before you drill or cut any holes,
investigate your car's layout very
carefully. Take special care when you
work near the gas tank, fuel lines,
hydraulic lines and electrical wiring.
Never operate the amplifier when it is
unmounted. Attach all audio system
components securely to prevent
damage, especially in an accident.
DIABLO MOSFET Amplifier User's Manual - page 4
Before making or breaking power
connections in your system,
disconnect the vehicle battery. Confirm
that your head unit or other equipment
is turned off while connecting the input
jacks and speaker terminals.
If you need to replace the power fuse,
replace it only with a fuse identical to
that supplied with the amplifier. Using
a fuse of a different type or rating may
result in damage to your audio system
or your amplifier which is not covered
by the manufacturer's warranty.
Mounting the amplifier
1. Find a suitable location in the vehicle
in which to mount the amplifier.
2. Make sure there is sufficient air
circulation around the intended
mounting location.
3. Mark the location for the mounting
hole screws by positioning the amplifier
where you wish to install it. Use a
scribe or mounting screw, inserted
through each of the amp's mounting
holes, to mark the mounting surface.
If the mounting surface is carpeted,
measure the hole centers and mark
with a felt tip pen.
4. Drill pilot holes in the mounting
surface for the mounting screws. Place
the amplifier in position, and attach
the amplifier to the mounting surface
securely using screws.
SHOCK HAZARD! Do not open the case
of this product. There are dangerous
voltages present within the unit. There are
no user-serviceable parts within the unit.
Connecting the amplifier
Before doing any wiring, look through
this manual and identify the diagrams
to follow for power, input and speaker
connections for your particular
installation. Be sure you understand
all the connections before you proceed.
1. Connect the power ground terminal
to the closest point on the chassis of
the car. Keep this ground wire to less
than 39" (100 cm) in length. Use 8
gauge (or heavier) wire.
2. Connect the remote terminal to the
remote output of the head unit using
16 gauge (or heavier) wire.
3. Connect an empty fuse holder within
18" (45 cm) of the car battery, and run
8 gauge (or heavier) cable from this
fuse to the amplifier location.
4. Check that the fuse holder is empty.
Then connect the fuse holder to the
"BATT+" connection on the amplifier.
5. If multiple amplifiers are being used
in your system, either:
* Run a separate pair of cables from
the battery and a chassis ground point
to each amplifier. Each (+) cable must
have its own inline fuse.
-Or-
e Run a #4 cable from the fuse holder
at the battery to a distribution block
at or near the amplifier's location. Then
run separate cables from the amplifier
to this distribution block and to
independent chassis ground points.
6. Connect all line inputs and outputs
(if used) using high-quality cables.
Connect all speakers, following the
diagrams in this manual. Be sure to
observe proper polarity to avoid audio
phase problems.
7. Insert fuse(s) into the battery fuse
holder(s).
8. Recheck all connections before
powering up the amplifier.
9. Set all level controls to minimum
position, and set all crossover
controls/switches to the desired
frequency points.
10. Power up the head unit and the
amplifier. Then set the volume control
on the head unit to about 3/4 volume,
and adjust the amplifier's input level
control(s) to just below the level of
distortion.
11. Further fine tuning of the various
controls may be necessary to obtain best
results.
Don't misuse the
level control!
Do not mistake the input level control
for a volume control! It is designed
ONLY to match the output level of
your audio source to the input level
of your amplifier.
Do not adjust this input level to
maximum unless your input level
requires it.
Ignoring these instructions will result
in an input overload to the amplifier,
and excessive audio distortion. It
can also cause the protection circuit
to engage.
DIABLO MOSFET Amplifier User's Manual - page 5
Low Level Input Wiring
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
2-Channel Amplifiers
D400.2, D500.2, D600.2, D800.2. D1000.2 and D1300.2
Remote
Subwoofer Level Control
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DIABLO MOSFET Amplifier User's Manual - page 6
Low Level Input Wiring
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
Remote
5-Channel Amplifier Subwoofer Level Control
D1800.5 D
CROSSOVER MODE — BASS.
MOSFET
Power Amplifier
CD) D CD G/ 0-0)
HIGH LEVEL
INPUTS
To FRONT Audio To REAR Audio To SUBWOOFER
Outputs of head Outputs of head Audio Outputs of
unit or signal unit or signal head unit or signal
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present)
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DIABLO MOSFET Amplifier User's Manual - page 7
MOSFET MonoBlock Power Amplifier
High Level Input Wiring
The high level input(s) should only be used when your head unit lacks RCA outputs.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
2-Channel Amplifiers
D400.2, D500.2, D600.2, D800.2. D1000.2 and D1300.2
— as o
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DIABLO MOSFET Amplifier User's Manual - page 8
High Level Input Wiring
The high level input(s) should only be used when your head unit lacks RCA outputs.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
NOTE: Do not connect BOTH the high level and low level inputs from your
receiver to your amplifier at the same time!
5-Channel Amplifier
D1800.5 CH1+ CH1- CH2- CH2+
CROSSOVER MODE CH5 CROSSOVER py,
LOW PASS FREQ !
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Subwoofer Level Control
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MonoBlock Amplifier of head unit
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DIABLO MOSFET Amplifier User's Manual - page 9
Power and Speaker Wiring
RIGHT
2-Channel Amplifiers
D400.2, D500.2, D600.2,
D800.2. D1000.2 and D1300.2
Speaker
SPEAKER LEFT
IMPEDANCE Speaker
2.8 OHMS
Two
Channel
Mode
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Battery
FUSE
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SPEAKER
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SPEAKER CONNECTIONS
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DIABLO MOSFET Amplifier User's Manual - page 10
Connect the Positive (+) terminal of the
subwoofer to the L (+) amplifier terminal.
Connect the Negative (-) terminal of the
subwoofer to the R (-) amplifier terminal.
Power and Speaker Wiring 2-Channel Amplifiers
D400.2, D500.2, D600.2,
D800.2. D1000.2 and D1300.2
Tri-mode operation allows you to connect this amplifier to a pair of main speakers plus
a subwoofer on one pair of output channels. The main speakers will operate in STEREO
while the subwoofer simultaneously operates in MONO.
To set up the amplifier to run in this mode, put the crossover switches in the FULL position.
Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown
below. Be sure to check the table at the bottom of this page to determine the correct
capacitor and inductor values for the crossover frequency you wish to achieve.
Component values for
6dB Passive Crossover
FREQUENCY INDUCTOR CAPACITOR
80 Hz 7.5mH 470uF
100 Hz 6.5mH 330uF
120 Hz 5.5mH 330uF
150 Hz 4mH 220uF
to REMOTE TURN-ON
| terminal of head unit
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POWER CONNECTIONS FUSE SPEA ER CONNE( TIONS
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Chassis
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point High pass filter
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LEFT
Speaker
MINIMUM
SPEAKER High pass filter
IMPEDANCE crossover
4 OHMS
RIGHT + J
Speaker
SPEAKER
IMPEDANCE
Low pass
filter inductor PERE
Ne a — J
7
DIABLO MOSFET Amplifier User's Manual - page 11
Power and Speaker Wiring
4-Channel Amplifiers
D250.4, D350.4, D450.4 and D550.4
CH2 H
k
Speaker ; ~ NN
SPEAKER
IMPEDANCE CH1
2-8 OHMS Speaker
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to REMOTE TURN-ON Speaker
terminal of head unit
© CH4 :
= Speaker | и
SPEAKER
IMPEDANCE
2-8 OHMS
Connect the Negative (-)
terminal of the RIGHT
subwoofer to the CH2 (-)
amplifier terminal.
Connect the Positive (+)
SPEAKER Sub RIGHT Fl N terminal of the RIGHT
4-80HMs “UDWOOTer subwoofer to the CH1 (+)
Ç amplifier terminal.
Bridged
Mode
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POWER CO INECTIONS FUSE FUSE
LEFT Connect the Negative (-)
Subwoofer terminal of the LEFT
subwoofer to the CHA (-)
to REMOTE TURN-ON ; amplifier terminal.
t inal of head unit
erminal ot head unt Connect the Positive (+)
= © terminal of the LEFT
SPEAKER subwoofer to the CH3 (+)
FUSE Pe amplifier terminal.
DIABLO MOSFET Amplifier User's Manual - page 12
Power and Speaker Wiring 4-Channel Amplifiers
D250.4, D350.4, D450.4 and D550.4
Tri-mode operation allows you to connect this amplifier to a pair of main speakers
plus a subwoofer on one pair of output channels. The main speakers will operate
in STEREO while the subwoofer simultaneously operates in MONO.
To set up the amplifier to run in this mode, put the crossover switches in the FULL
position. Insert high pass filter capacitors and a low pass filter inductor into the
wiring as shown below. Be sure to check the table at the bottom of this page to
determine the correct capacitor and inductor values for the crossover frequency
you wish to achieve.
SPEAKER
IMPEDANCE
= 8 OHMS
Tri-Mode RIGHT
Subwoofer
iF =]
4 High pass filter ÓN
Component values for
edB Passive Crossover
FREQUENCY INDUCTOR CAPACITOR
crossover CH1
Speaker
MINIMUM
High pass filter SPEAKER
80 Hz 7. 5mH 470uF crossover IMPEDANCE
100 Hz 6.5mH 330uF 4 OHMS
120 Hz 5.5mH 330uF CH2
150 Hz 4mH 220uF Speaker
Low pass (2
filter inductor Uy
Г оО Г Г СГ СОС ОГО ГОС
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10) JN
FUSE FUSE
to REMOTE TURN-ON
terminal of head unit
High pass filter
crossover
© CH4
CC | h— Speaker | MINIMUM
High pass filter IMPEDANCE
crossover 4 OHMS
CH3
SPEAKER Speaker
IMPEDANCE
8 OHMS
Low pass
filter inductor
+ J
LEFT
Subwoofer
DIABLO MOSFET Amplifier User's Manual - page 13
Power and Speaker Wiring 5-Channel Amplifier
D1800.5
SPEAKER
IMPEDANCE
2-8 OHMS
CH2 CH5
Speaker Ll NN Subwoofer
SPEAKER в
IMPEDANCE CHI
2-8 OHMS Speaker
Five
Channel ————
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POWER € ONNECTIONS FUSE FUSE
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ground
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terminal of head unit
Speaker
Battery FUSE
SPEAKER
IMPEDANCE
2-8 OHMS
DIABLO MOSFET Amplifier User's Manual - page 14
Power and Speaker Wiring 5-Channel Amplifier
D1800.5
Connect the Negative (-) terminal of the RIGHT
SPEAKER subwoofer to the CH2 (-) amplifier terminal.
IMPEDANCE
4-8 OHMS
Connect the Positive (+) terminal of the RIGHT
subwoofer to the CH1 (+) amplifier terminal.
RIGHT CH5
Subwoofer в Subwoofer
SPEAKER
[+ — IMPEDANCE
NN 2-8 OHMS
ae] Y
LUPE
Bridged
Mode
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POWER C( NNECTIONS FUSE FUSE Rl TA ЕР ОЕ)
|
= LEFT
Subwoofer
Chassis
ground
to REMOTE TURN-ON
terminal of head unit
© — | Connect the Negative (-) terminal of the LEFT
o a
SPEAKER subwoofer to the CH4 (-) amplifier terminal.
FUSE IMPEDANCE () amp
4-8 OHMS
Connect the Positive (+) terminal of the LEFT
subwoofer to the CH3 (+) amplifier terminal.
+
DIABLO MOSFET Amplifier User's Manual - page 15
Power and Speaker Wiring
5-Channel Amplifier
D1800.5
Tri-mode operation allows you to connect this amplifier to a pair of main speakers
plus a subwoofer on one pair of output channels. The main speakers will operate
in STEREO while the subwoofer simultaneously operates in MONO.
To set up the amplifier to run in this mode, put the crossover switches in the FULL
position. Insert high pass filter capacitors and a low pass filter inductor into the
wiring as shown below. Be sure to check the table at the bottom of this page to
determine the correct capacitor and inductor values for the crossover frequency
you wish to achieve.
SPEAKER
IMPEDANCE
Tri-Mode 8 ONS RIGHT
Subwoofer
+ =I
Component values for 4 High pass filter в
= CH1
6dB Passive Crossover Speaker
FREQUENCY INDUCTOR CAPACITOR MINIMUM
High pass filter SPEAKER
80 Hz 7.5mH 470uF crossover IMPEDANCE
100 Hz 6.5mH 330uF 4 OHMS
120 Hz 5.5mH 330uF CH2 ET
150 Hz 4mH 220uF Speaker 2-8 OHMS
. Lowpass «=
filter inductor CH5
Subwoofer
J x 7
PTT
J e +
EA
GROUND REMOTE
POWER CO INECTIONS
— El cas
FUSE FUSE
y
LEE |
étre éme
LL JERR
Cha SCH me © |
E 69 3
1 ATOS
to REMOTE TURN-ON
terminal of head unit
©
cl Cl
FUSE
—1
SPEAKER
IMPEDANCE
8 OHMS
DIABLO MOSFET Amplifier User's Manual - page 16
High pass filter
crossover
Low pass
filter inductor
LEFT
Subwoofer
|
Speaker | MINIMUM
SPEAKER
IMPEDANCE
4 OHMS
Power and Speaker Wiring Monoblock Amplifier
D1200M
ZN
SPEAKER
IMPEDANCE
MonoBlock 2-8 OHMS
Mode
J YY YY YY YY UY = e
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3955 =
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R LO |
+12V
Chassis
ground —
point
to REMOTE TURN-ON
terminal of head unit
©
EJ
cs [+
DIABLO MOSFET Amplifier User's Manual - page 17
Troubleshooting
If you experience operation or performance problems with this product, compare your
installation with the electrical wiring diagram on the previous pages. If problems persist,
read the following troubleshooting tips which may help eliminate the problems.
SYMPTOM POSSIBLE REMEDY
Amplifier will not Check to make sure you have a good ground connection.
power up. Check that the Remote Input (Turn-On) has at least 3VDC.
Check that there is battery power on the (+) terminal.
Check that there is at least 12v.
Check all fuses, replace if necessary.
Make sure that the Protection LED is not illuminated. If it is lit, shut off
the amplifier briefly, and then repower it.
Protection LED
comes on when
amplifier is
powered up.
Check for short circuits on speaker leads.
Turn down the volume control on the head unit to prevent overdriving.
Remove speaker leads, and reset the amplifier. If the Protection LED still
comes on, then the amplifier is faulty and needs servicing.
No output.
Check that all fuses are OK.
Check that amplifier is properly grounded.
Check that the Remote Input (Turn-On) has at least 3VDC.
Check that the RCA audio cables are plugged into the proper inputs.
Check all speaker wiring.
Low output.
Reset the Level Control.
Check the Crossover Control settings.
Audio present in
only one channel.
Check the RCA interconnect cables.
Check all speaker wiring.
High hiss in the
speakers.
Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then
plug in the component driving the amplifier and unplug its inputs. If the
hiss disappears at this point, go on until the faulty/noisy component is
found.
It is best to set the amplifier's input level control as low as possible. The
best subjective signal-to-noise ratio is achieved in this manner. Try to set
the head unit as high as possible (without distortion) and the amp input
level as low as possible.
Squealing noise
from speakers.
Check for improperly grounded RCA interconnects.
Distorted sound.
Check that the Input Level Control is set to match the signal level of the
head unit. Always try to set the Input Level as low as possible.
Check that all crossover frequencies are properly set.
Check for short circuits on the speaker leads.
Amplifier gets
very hot.
Check that the minimum speaker impedance for the amp model is correct.
Check that there is good air circulation around the amp. In some
applications, it may be necessary to add external cooling fan(s).
Engine noise
(static type)
This is usually caused by poor quality RCA cables,which can pick up
radiated noise. Use only the best quality cables, and route them away
from power cables.
Engine noise
(alternator
whine)
Check that speaker leads are not shorted to the vehicle chassis.
Check that the RCA grounds are not shorted to the vehicle chassis.
Check that the head unit is properly grounded.
DIABLO MOSFET Amplifier User's Manual - page 18
Specifications 2959
AUDIO SYSTEMS
Two Channel MOSFET Amplifiers
MODEL D400.2 0500.2 0600.2 D800.2 D1000.2 D1300.2
RMS POWER 150W x 2 200W x 2 230W x 2 260W x 2 320W x 2 400W x 2
into 4 Ohms
MAX POWER 400W X 2 500W X 2 600W X 2 800W X 2 1000W X2 1300W X 2
into 2 Ohms
BRIDGED POWER 800W X 1 1000W x1 1200Wx1 11600Wx1 2000W x1 2600W x 1
into 4 Ohms
Min. speaker 2 Ohm Stereo
impedance 4 Ohm Mono Bridged
THD 0.01%
Frequency response 9Hz-50kHz
Signal-to-noise ratio 103dB
Channel separation 90dB
Damping factor 125+
Crossover range
low pass 40Hz-150Hz
high pass 50Hz-500Hz
Bass boost Variable 0 - +18dB
Fuse rating 20A 25A 25A 30A 20A x 2 30A x 2
Dimensions: 8-1/2" 10-1/16" 11-5/8" 15-3/16" 17-9/16" 19-3/8"
(11" x 2-9/16" X ...)
Five Channel MonoBlock
Four Channel MOSFET MOSFET
MOSFET Amplifiers Amplifier Amplifier
MODEL D250.4 D350.4 D450.4 D550.4 D1800.5 D1200M
RMS POWER 100W x4 140Wx4 180Wx4 230W x 4 120W x 4 + 280W x 4
into 4 Ohms 200W x 1
MAX POWER 250W X4 350WX4 450WX4 550WX4 300W X 4 + 1200W X 1
into 2 Ohms 600W x 1
BRIDGED POWER 500WX2 700Wx2 900Wx2 1100W x2 600W x 2 N/A
into 4 Ohms 600W x 1
Min. speaker 2 Ohm Stereo
impedance 4 Ohm Mono Bridged
THD 0.01%
Frequency response 9Hz-50kHz
Signal-to-noise ratio 103dB
Channel separation 90dB
Damping factor 125+
Crossover range
low pass 40Hz-150Hz
high pass 50Hz-500Hz
Bass boost Variable 0 - +18dB
Fuse rating 20A x 2 25A x 2 30A x 2 40A x 2 35A x 2 25A
Dimensions: 13-1/4" 15-3/16" 16-9/16" 23-1/16" 18-3/4" 9-5/16"
(11" x 2-5/16" X ...)
All specifications subject to change without notice.
DIABLO MOSFET Amplifier User's Manual - page 19
Notes 2959
AUDIO SYSTEMS
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