Soundigital GAN 1500.5 User manual

OWNER´S MANUAL

Document revision code: 1000750483-006/OCT2023
Introduction ............................................................................................................................................................ 3
Package contents.............................................................................................................................................. 3
Safety instructions ............................................................................................................................................. 4
Technologies
News ............................................................................................................................................... 5
Advantages ................................................................................................................................. 6
Panels description
Audio controls ........................................................................................................................... 7
Power, Audio inputs and outputs ................................................................................... 8
Installation sequence ....................................................................................................................................... 9
Electrical dimensioning ............................................................................................................................... 10
Audio inputs
RCA inputs ............................................................................................................................... 10
Gain adjustment (channels 1 to 4) ......................................................................................................... 11
Crossover adjustment (channels 1 to 4) ........................................................................................... 12
Channel 5 gain adjustment (subwoofer) and SD RLC .............................................................. 13
Channel 5 Bass Boost adjustment (subwoofer)........................................................................... 14
Channel 5 Crossovers adjustment (subwoofer) ........................................................................... 15
Wiring diagram
Two channels wiring diagram + Subwoofer.......................................................... 16
Two channels wiring diagram (in bridge) + Subwoofer .................................. 17
Four channels wiring diagram + Subwoofer ........................................................ 18
Battery connection diagram ..................................................................................................................... 19
Technical specifications
Parameters............................................................................................................................... 20
Dimensional data.................................................................................................................. 20
Additional Information................................................................................................................................... 20

3
PACKAGE CONTENTS
▪ 01 1500.5 GAN Founders Edition amplifier
▪ 01 Quick installation guide with warranty certificate
▪02 Flat head Allen screws M3x20mm
▪ 01 Allen wrench 2.0mm
▪ 01 Allen wrench 2.5mm
▪ 01 Allen wrench 3.0mm
3
Dear Consumer,
Congratulations, you have just acquired a SounDigital product of the highest
technology and quality, so we thank you for your trust.
SounDigital products are made with raw materials of the highest quality
standards, and the most modern processes, equipment and technology are
used in their production.
IMPORTANT INFORMATION
On this manual you will learn about the product, its features and
characteristics, in order to obtain the best result and to be able to enjoy your
music with SounDigital quality and power.
Read this manual carefully and follow precisely all the information contained
therein, these are very important and allow your amplifier to work optimally. If you
think it is necessary, please do not hesitate to contact our technical support at the
following contact:
[e-mail]
*Merely illustrative image.
INTRODUCTION

SAFETY INSTRUCTIONS
4
THIS "WARNING" SIGN ALERTS THE USER OF IMPORTANT INFO. NOT FOLLOWING
THESE INSTRUCTIONS MAY CAUSE INJURIES TO THE USER OR DAMAGE TO THE
EQUIPMENT.
Warning!
To avoid injury to the user or damage to the amplifier, read all safety instructions
written on this manual.
Before proceeding with the
installation of any electric
equipment on your vehicle,
u n p l u g t h e n e g a t i v e ( - )
terminal of the battery to avoid
fires, injuries or damages;
Use your sound system safely.
The continuous exposure to
sound pressures over 85dB
m a y c a u s e i r r e v e r s i b l e
hearing damage;
This equipment is for use in
a u t o m o t i v e D C v o l t a g e
batteries between 12.6 and
14.4 volts. Before installing the
equipment, check voltage of
the batteries;
Do not install the amplifier in
places exposed to water, dirt
or humidity;
Choose a ventilated place to
install the amplifier and avoid
blocking the side ventilation
windows;
Fix the amplifier properly and
firmly. Avoid fixing to metallic
parts of the vehicle, as this
procedure may cause ground
looping (noise);
When passing cables through
metallic walls, use rubber
O-rings to avoid cable cutting
and short-circuits;
Make sure that the chosen
location for the a m plifier
installation does not affect the
operation of the vehicle;
T h i s p r o d u c t m a y r e a c h
t e m p e r a t u r e s o v e r 6 0 ° C
(140°F). Make sure it is cold
before touching it;
Clean the amplifier periodically
with brush or dry cloth to
assure the thermal efficiency
of the heatsink;
Be careful when making holes
in the vehicle. Make sure you
are not making holes in the
fu e l t a n k , b r a ke l i n e s o r
electrical cables of the vehicle;
Make sure the cables are
properly secured throughout
the installation;
Wear gloves, safety glasses
and all necessary PPE during
the installation of SounDigital
amplifiers.
X XX
X XX
The installation of this product
must be done by a qualified
professional. In case of any
doubt, please contact our
technical support;

NEWS
SounDigital presents the revolution in amplifier production!
GaN is the big star when it comes to amplifier performance! With its unique
ability for electronic mobility, it paves the way for unparalleled sound power. Get
ready to immerse yourself in a musical universe of high fidelity and clarity with
SounDigital, where every note comes to life with stunning precision. Your
listening experience will never be the same!
History of gallium nitride (GaN)
The use of gallium nitride (GaN) in amplifiers is a relatively recent but extremely
significant development in the field of power electronics and audio amplification.
Gallium nitride was discovered in the 1960s, but research and development of
the material as a semiconductor gained momentum in the following decades.
GaN has shown promise for high power and high frequency applications due to
its unique characteristics such as high electron mobility and ability to operate at
elevated temperatures.
In the 1990s and 2000s, GaN technology continued to be developed and
improved. Researchers and engineers have focused on improving the
crystalline quality of the material and developing techniques for growing GaN
crystals on suitable substrates.
In recent years, the adoption of GaN power amplifiers in the audio market has
grown significantly. SounDigital has taken advantage of GaN to create more
efficient, smaller amplifiers with better sound quality.
Tune in to the future of sound!
The electronic revolution has arrived at SounDigital, and GaN is the star of this
transformation! With high-performance amplifiers, unrivaled durability and eco-
consciousness, the future of sound is brighter than ever. Get ready for an
extraordinary sound experience that pushes the boundaries of the ordinary and
delivers the sound of your dreams. Tune in to GaN and open your ears to a new
musical dimension!
5

11.7"
5.9"
6
ADVANTAGES
Advantages of using SounDigital amplifiers with GaN technology:
SounDigital's GaN-based power amplifiers have several advantages that make
them attractive for use in audio systems:
Reduced size and weight
Due to the high efficiency and ability to
operate at high frequencies, SounDigital
amplifiers with GaN technology can be
designed to be smaller and lighter
compared to traditional amplifiers.
High energy efficiency
GaN has a high electron mobility, which allows GaN power
amplifiers to convert significantly less electrical energy into
heat. This results in higher energy efficiency, minimizing
power losses and making them more sustainable.
High switching speed
SounDigital amplifiers with GaN technology are able to
operate at high frequencies with a faster response
compared to other semiconductors such as silicon. This
results in lower signal distortion and a more accurate
frequency response, which contributes to better sound
quality.
High temperature performance
SounDigital amplifiers with GaN technology can operate at
higher temperatures without significant loss of
performance, which is beneficial for applications where
heating is a challenge, such as in high-power amplifiers.

GND REM BATT
CH1-CH2
CH3-CH4
INPUT SOURCE INPUT SOURCE
CH3-CH4
CH1-CH2
CH5 R + L
CH5
GAIN
CH3-CH4
HP F LP
GAIN
CH1-CH2 8080
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
HP F LP
X-OVER X-OVER
MIN MAX
MIN MAXMIN MAX 5Hz 40Hz 50Hz 500Hz
45 85045 850 0 +12dB
CH5 CH1 CH2 CH3 CH4
BASS BOOST
PANELS DESCRIPTION
7
910 11 122 8 467
5
31
Variable "BASS BOOST" filter control 50Hz (0dB ~ +12dB)
Variable Gain control
12
10
4
3
9
Crossover switch key
High Pass – Full – Low Pass
Variable crossover control (45Hz ~ 850Hz)
2
1Channels 1 and 2
Channels 3 and 4
Channels 1 and 2
Channels 3 and 4
Channels 1 and 2
Channels 3 and 4
6
5
8
7
Variable Gain control
Channel 5 (Subwoofer)
Variable "SUBSONIC" filter control (5Hz ~ 40Hz)
11 Variable "LOW PASS" filter control (50Hz ~ 500Hz)
Channel 5 (Subwoofer)
Channel 5 (Subwoofer)
Channel 5 (Subwoofer)
Channel signal routing
Channels 3 and 4
Channel 5 (Subwoofer)

PANELS DESCRIPTION
8
14
15
16
17
18
13
33 3414 17 19 21
20
3229 312723 25
28 302622 24
16 18
1513
"POWER ON" LED indicator
"CLIP" LED indicator
Yellow
Blue
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Audio inputs – RCA connectors
Remote power supply connector (REM)
Positive power supply connector (+12VDC)
Negative power supply connector (GND)
Negative speaker connector (-)
Positive speaker connector (+)
Negative speaker connector (-)
Positive speaker connector (+)
Negative speaker connector (-)
Positive speaker connector (+)
Positive speaker connector (+)
Negative speaker connector (-)
Positive speaker connector (+)
Remote level control connector
Negative speaker connector (-)
-
-
-
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5 L
Channel 5 R
Channel 1
Channel 2
Channel 3
Channel 4
Channel 1
Channel 2
Channel 3
Channel 4
-
Channel 5 (Subwoofer)
Channel 5 (Subwoofer)

9
ØFix the amplifier so that the connectors can be easily accessed;
ØInstall the power cables in the vehicle properly, starting from the battery to the fuse holder
or circuit breaker, use the cable with the appropriate size. Make all connections, install fuse
holders or circuit breakers, but without placing the fuses or with the circuit breakers in the
"OFF" position;
ØConnect the power cables in to the amplifier, observing the polarity. Connect all the positive
cables from the fuse holder or circuit breaker to the positive conector of the amplifier (+)
and all the negative power cables from the batteries to the negative connector of the
amplifier;
ØThe ground cable must be as short as possible and must be connected to the vehicle
chassis and the battery negative;
ØInstall the signal input cables in a proper way, distant from the power cables;
ØConnect the RCA or the high level signal input cables to the head unit and amplifiers;
ØInstall the audio output cables with the appropriate section, distant from the power and
audio input cables;
ØConnect the audio output cables to the amplifier and speakers respecting the positive (+)
and negative (-) polarities;
ØInstall the remote cable with the power cables, using 1.5mm² (15 AWG) cable or thicker;
ØConnect the remote power cable to the amplifier's "REM" terminal at the main unit's remote
power output (when not using the high level signal inputs);
ØBefore powering the system, verify all the connections and make sure there are no
mistakes or short-circuits on the power and ground cables;
Ø;Reconnect the ground of the batteries
ØCheck if the head unit is turned off and then place the fuses in the fuse holders or switch the
circuit breakers on;
ØTurn on the main unit and the amplifier will turn on the "POWER ON" LED indicating that it is
in operation.
INSTALLATION SEQUENCE
Remove the paint
between the terminal
and chassis
THE MAXIMUM DISTANCE FOR THE INSTALLATION OF THE FUSE/CIRCUIT BREAKER
IS 12 INCHES (30cm) AWAY FROM THE BATTERY.
BEFORE PROCEEDING WITH THE INSTALLATION, UNPLUG THE NEGATIVE TERMINAL
FROM ALL OF THE BATTERIES, TO AVOID FIRE, DAMAGE TO THE AMPLIFIER AND THE
USERS THEMSELVES.
Minimum recommended
i n s t a l l a t i o n d i s t a n c e
between amplifiers*.
1.18in (30mm)
*For installations with more than one amplifier, second unit not included. Merely illustrative images.
Warning!
Warning!
Warning!
X XX

ELECTRICAL DIMENSIONING AND AUDIO INPUTS
ELECTRICAL DIMENSIONING
For proper operation of your SounDigital amplifier, you need the proper
dimensioning of the electrical system and the cables used.
The table below shows the minimum section of GND cables, +12VDC cables
and speaker output cables according to the power generated by the amplifier.
10
We recommend the use of only OFC (Oxygen Free Copper) cables on the
installation of our products.
Copper-clad aluminum wire (CCAW) must not be used.
AUDIO INPUTS
RCA inputs GND BATT
REMOTE
1500
WRMS
16mm² (5 AWG)
SPEAKER / SUBWOOFER CABLE
GROUND CABLE (GND)
POWER CABLE (+12VDC)
2.5mm² (13 AWG)
1.5mm² (15 AWG)
REMOTE CABLE
See RCA connection settings and
channel selector control combinations
on pages 16 to 18.
CAUTION: TO AVOID DAMAGE TO THE
APPLIANCE CONNECT / DISCONNECT
RCA CABLES WITH THE REMOTE CABLE
DISCONNECTED.

11
GAIN SETTING
Necessary equipament:
ØDigital AC voltmeter;
ØMedia with sine wave test tone 60Hz
recorded at 0db;
Ø1/8" screwdriver (for gain setting).
Set up procedure:
This procedure is the same for both
Ø
gain controls;
Turn the gain control all the way
Ø
down;
ØDisconnect the output cables from
the amplifier outputs;
ØTurn off all processing (bass, treble,
loudness, EQ, etc.);
ØSet the audio player volume to 3/4 of
full volume;
ØOn the audio player, set the fader
control to center position;
ØSet the crossover selector switch
in "F";
ØUse a 60Hz sine wave;
ØConnect the AC voltmeter to the
speaker output connectors of the
amplifier. Make sure you test the
voltage at the correct connectors
(+ and –);
ØIncrease the gain control until the
target voltage is observed with the
voltmeter (see the chart below);
ØO n c e y o u h a v e a d j u s t e d t h e
amplifier to the correct voltage
output, turn off the source unit and
reconnect the speaker(s).
STEREO / POWER
MODEL BRIDGE / POWER
STEREO OUTPUT
VOLTAGE
1500.5 GAN
BRIDGE OUTPUT
VOLTAGE
Download the tracks for set up in https://soundigitalusa.com/tracks-for-set-up/
4 / 125WΩ8 / 250WΩ22.36V 44.72V
GAIN SETTING (CHANNELS 1 TO 4)
GAIN
CH1-CH280
HP F LP
X-OVER
MIN MAX
45 850

CROSSOVER SET UP (CHANNELS 1 TO 4)
►Change the switch to "F" position (Full Range) - All the frequencies
will be reproduced .
►Change the switch to "HP" position - Set in the variable control between 45Hz
and 850Hz ("A") where you want to perform the high pass cut filter;
0dB
-3dB
6Hz 65kHz
dB
Hz
-3dB
c/2
ƒ
High
Pass
c
ƒ
High
Pass
A
0dB
-12dB
dB
Hz
►Change the switch to "LP" position - Set in the variable control between 45Hz
and 850Hz ("B") where you want to perform the low pass cut filter.
-3dB
0dB
-12dB
Low
Pass
B
c
ƒc*2 ƒ
Low
Pass
dB
Hz 12
"F" Set variable control in
Full Range function;
"LP" Set variable control in
Low Pass function;
"HP" Set variable control in
High Pass function.
GAIN
CH3-CH4
HP F LP
GAIN
CH1-CH2 8080
HP F LP
X-OVER X-OVER
MIN MAXMIN MAX 45 85045 850
CH1-CH2
CH3-CH4
INPUT SOURCE INPUT SOURCE
CH3-CH4
CH1-CH2
CH5 R + L
CH5

13
Necessary equipament:
ØDigital AC voltmeter;
ØMedia with sine wave test tone 60Hz
recorded at 0db;
ØScrewdriver 1/8" ( for gain setting).
Set up procedure:
Turn the gain control all the way
Ø
down;
ØDisconnect the output cables from
the amplifier outputs;
ØTurn off all processing (bass, treble,
loudness, EQ, etc.);
ØSet the audio player volume to 3/4 of
full volume;
ØSet the audio player fader control to
center position (left and right fader
controls);
ØS e t t h e v a r i a b l e " L O W PAS S "
c r o s s o v e r i n 5 0 0 H z a n d t h e
"SUBSONIC" in 5Hz;
Ø Use a 60 Hz sine wave;
ØIncrease the gain control until the
"CLIP" LED starts blinking;
ØReturn the gain to the limit where the
"CLIP" LED stops blinking and
remains off;
ØO n c e y o u h a v e a d j u s t e d t h e
amplifier to the correct voltage
output, turn off the source unit and
reconnect the speaker(s).
CHANNEL 5 GAIN ADJUSTMENT (SUBWOOFER) / SD RLC
GAIN SETTING
Download the tracks for set up in https://soundigitalusa.com/tracks-for-set-up/
EXTERNAL LEVEL CONTROL - SD RLC (*Not included)
The SD RLC is an easy-to-install external level
control accessory that allows you to tune the level of
SOUNDIGITAL amplifiers that have remote level
control.
In SD RLC, you can adjust the amplifier level without
having to lean over and adjust the gain setting on
the amplifier and can monitor the “CLIP” LED which
is also available on the accessory.
POWER CLIP
LEVEL
SD REMOTE
LEVEL CONTROL*
*Sold separately
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
MIN MAX 5Hz 40Hz 50Hz 500Hz 0 +12dB
BASS BOOST

14
Bass Boost Chart
12dB
dB
Hz
0dB
3dB
0
9dB
6dB
50Hz
Bass Boost Level
The Amplifier Bass Boost setting enables the user to boost the sound intensity
at low frequencies of the sound system, where boost intensity can be adjusted.
This is a semi-parametric equalizer type circuit with ''Q'' value for the fixed filter,
with an intensity boost adjustment from 0 to +12dB (16 times), and a central
frequency adjustment of the filter in 50Hz, making it versatile for several types of
sound systems.
CHANNEL 5 BASS BOOST ADJUSTMENT (SUBWOOFER)
USING BASS BOOST
Reproduce your favorite song and set the boost intensity between 0dB and +12dB
at the variable control level according your preference.
HOW TO ADJUST BASS BOOST
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
MIN MAX 5Hz 40Hz 50Hz 500Hz 0 +12dB
BASS BOOST

15
►To set the "SUBSONIC" variable control between 5Hz and 40Hz ("A") where you want
to perform the subsonic cut filter;
►Set in the "LOW PASS" variable control between 50Hz and 500Hz ("B") where you
want to perform the low pass cut filter.
-3dB
c/2
ƒ
High
Pass
c
ƒ
High
Pass
A
0dB
-12dB
dB
Hz
-3dB
0dB
-12dB
Low
Pass
B
c
ƒc*2 ƒ
Low
Pass
dB
Hz
-3dB
c/2
ƒ
High
Pass
c
ƒ
High
Pass
A
0dB
-12dB
dB
Hz
Low
Pass
c
ƒc*2 ƒ
Low
Pass
B
►The use of the two associated filters can form a bandpass filter, as in the figure below,
where the point "A" is defined in the "SUBSONIC" crossover and the point "B" is defined
in the "LOW PASS" crossover;
HOW TO ADJUST THE CROSSOVERS
ADJUSTMENT OF CHANNEL 5 CROSSOVERS (SUBWOOFER)
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
MIN MAX 5Hz 40Hz 50Hz 500Hz 0 +12dB
BASS BOOST

8080
X-OVER X-OVER
MIN MAXMIN MAX 45 85045 850
GAIN
CH3-CH4
HP F LP
GAIN
CH1-CH2
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
HP F LP
MIN MAX 5Hz 40Hz 50Hz 500Hz 0 +12dB
GND REM BATT
CH1-CH2
CH3-CH4
INPUT SOURCE INPUT SOURCE
CH3-CH4
CH1-CH2
CH5 R + L
CH5
CH5
CH4 CH3 CH1 CH2
BASS BOOST
WIRING DIAGRAM
16
2 CHANNELS WIRING DIAGRAM (per channel) + SUBWOOFER
In case of connections
with more than one battery,
see the installation diagram
on page 19.
See "AUDIO INPUTS"
on page 10
FUSE
GND
REMOTE
+12V
Per channelOutputs
SUBWOOFER
4Ω
CHANNELS 1 ~ 4
Bridge
N/A
8Ω
2Ω
1500.5 GAN 4Ω
Minimum impedance
CONNECTIONS WITH HIGH LEVEL INPUTS BEHAVE IN THE SAME WAY AS
CONNECTIONS WITH RCA CONNECTORS.
THE SAME INDICATIONS FOR THE SETTINGS OF THE CONTROLS CAN BE
FOLLOWED, OBSERVING THE CHANNEL DESCRIPTIONS ON THE CONNECTOR.
FUSE
+12V
REMOTE
REMOTE
+12V
GND
GND
GND
*Sold separately
POWER CLI P
LEVEL
SD REMOTE
LEVEL CONTROL*
(SUBWOOFER)
(SPEAKER PER CHANNEL)
+12V
(SPEAKER PER CHANNEL)
CAUTION: TO AVOID DAMAGE TO THE APPLIANCE
CONNECT / DISCONNECT RCA CABLES WITH THE
REMOTE CABLE DISCONNECTED.
CH5 R + L CH3-CH4

8080
X-OVER X-OVER
MIN MAXMIN MAX 45 85045 850
GAIN
CH3-CH4
HP F LP
GAIN
CH1-CH2
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
HP F LP
MIN MAX 5Hz 40Hz 50Hz 500Hz 0 +12dB
GND REM BATT
CH1-CH2
CH3-CH4
INPUT SOURCE INPUT SOURCE
CH3-CH4
CH1-CH2
CH5 R + L
CH5
CH5
CH4 CH3 CH1 CH2
BASS BOOST
WIRING DIAGRAM
17
2 CHANNELS WIRING DIAGRAM (in Bridge) + SUBWOOFER
In case of connections
with more than one battery,
see the installation diagram
on page 19.
See "AUDIO INPUTS"
on page 10
FUSE
GND
REMOTE
+12V
Per channelOutputs
SUBWOOFER
4Ω
CHANNELS 1 ~ 4
Bridge
N/A
8Ω
2Ω
1500.5 GAN 4Ω
Minimum impedance
CONNECTIONS WITH HIGH LEVEL INPUTS BEHAVE IN THE SAME WAY AS
CONNECTIONS WITH RCA CONNECTORS.
THE SAME INDICATIONS FOR THE SETTINGS OF THE CONTROLS CAN BE
FOLLOWED, OBSERVING THE CHANNEL DESCRIPTIONS ON THE CONNECTOR.
FUSE
+12V
REMOTE
REMOTE
+12V
GND
GND
GND
*Sold separately
POWER CLI P
LEVEL
SD REMOTE
LEVEL CONTROL*
+12V
CAUTION: TO AVOID DAMAGE TO THE APPLIANCE
CONNECT / DISCONNECT RCA CABLES WITH THE
REMOTE CABLE DISCONNECTED.
(SUBWOOFER)
(SPEAKER IN BRIDGE)
(SPEAKER IN BRIDGE)
CH5 R + L CH3-CH4

8080
X-OVER X-OVER
MIN MAXMIN MAX 45 85045 850
GAIN
CH3-CH4
HP F LP
GAIN
CH1-CH2
GAIN
CH5
SUBSONIC
10Hz 50Hz 100Hz
LOW PASS
X-OVER
HP F LP
MIN MAX 5Hz 40Hz 50Hz 500Hz 0 +12dB
GND REM BATT
CH1-CH2
CH3-CH4
INPUT SOURCE INPUT SOURCE
CH3-CH4
CH1-CH2
CH5 R + L
CH5
CH5
CH4 CH3 CH1 CH2
BASS BOOST
18
4 CHANNELS WIRING DIAGRAM (per channel) + SUBWOOFER
WIRING DIAGRAM
In case of connections
with more than one battery,
see the installation diagram
on page 19.
See "AUDIO INPUTS"
on page 10
FUSE
GND
REMOTE
+12V
Per channelOutputs
SUBWOOFER
4Ω
CHANNELS 1 ~ 4
Bridge
N/A
8Ω
2Ω
1500.5 GAN 4Ω
Minimum impedance
CONNECTIONS WITH HIGH LEVEL INPUTS BEHAVE IN THE SAME WAY AS
CONNECTIONS WITH RCA CONNECTORS.
THE SAME INDICATIONS FOR THE SETTINGS OF THE CONTROLS CAN BE
FOLLOWED, OBSERVING THE CHANNEL DESCRIPTIONS ON THE CONNECTOR.
FUSE
+12V
REMOTE
REMOTE
+12V
GND
GND
GND
*Sold separately
POWER CLI P
LEVEL
SD REMOTE
LEVEL CONTROL*
+12V
CAUTION: TO AVOID DAMAGE TO THE APPLIANCE
CONNECT / DISCONNECT RCA CABLES WITH THE
REMOTE CABLE DISCONNECTED.
(SUBWOOFER)
(SPEAKER PER CHANNEL)
(SPEAKER PER CHANNEL)
(SPEAKER PER CHANNEL)
(SPEAKER PER CHANNEL)
CH5 R + L CH3-CH4

1
2
BATTERY CONNECTION DIAGRAM
When necessary the association of one or more battery banks to supply the
necessary current to the amplifier, it is recommended to use batteries of the same
brand, model, and if possible the same manufacturing lot so that the system has
the maximum performance.
For an ideal energy performance, we recommend that all batteries be connected to
positive and negative busbars and the busbars connected to the amplifier, as
shown in the diagram below:
2
3
1
Battery connections without the use of a busbar,
as shown in the example below, must be avoided.
This setting decreases the efficiency of supplying
power to the system.
All cables, positive and negative,
connected from the battery to the
busbar must be the same length.
Likewise the cables connected from
the busbar to the amplifier.
19
FUSE
FUSE
FUSE
FUSE
It is mandatory to install the fuse at a
maximum distance of 12 inches from the battery.
It is mandatory to install the fuse at a
maximum distance of 12 inches from the battery.
FUSE
FUSE
BUSBAR
BUSBAR
*Merely illustrative images.

**Power at 14.4V @ 1kHz with a maximum THD of 1%.
*It is mandatory to install the fuse at a maximum distance of 12 inches from the battery.
**POWER RATING ACCORDING TO
CTA-2006 INDUSTRY STANDARDS.
TECHNICAL SPECS
20
ADDITIONAL INFORMATION
The values presented are based on measurements performed in
SounDigital's laboratories. All the equipment used in the assays, tests,
measurements and gauging of the technical parameters of SounDigital
products were calibrated in certified laboratories, thus ensuring the
performance and standard of excellence of the developed products.
The Manufacturing Process may present variations, and the electronic
components may also present changes in values in relation to their
nominal parameters. Thus, causing small differences between
measurements taken. Small variations in the values presented and
divulged by SounDigital are recognized.
The images presented in this document are representative and
merely illustrative; therefore, they do not necessarily correspond to the
actual product/model.
Updates of information made in this document will always be
published and made available for consumer consultation, free of
charge, on the brand's websites. The user is advised to search for
the manual in its latest version when necessary.
Power RMS @ 2Ω**
Power RMS (Bridge) @ 8Ω**
Operating Voltage
SNR
Input Sensitivity (RCA)
Current Draw (music)
Current Draw (max.)
Total Efficiency
Damping Factor (@100Hz nominal impedance)
Power Cable
Speaker / Subwoofer Cable
Recommended Fuse* (music)
Recommended Battery (minimum)
Low Pass Filter (12dB/octave)
Bass Boost
Frequency Response (-3dB)
Subsonic Filter (12dB/octave)
Input Sensitivity (High Level input)
Power RMS @ 4Ω**
Power RMS (Bridge) @ 4Ω**
High Pass Filter (12dB/octave)
Remote Cable
PARAMETERS | 1500.5 GAN 4Ω
DIMENSIONAL DATA
Net Weight
Gross Weight
SUBWOOFERCHANNELS 1 ~ 4
5Hz ~ 65.25kHz
65A
130A
80%
150
16mm² (5 AWG)
2.5mm² (13 AWG)
80A
80Ah
45Hz ~ 850Hz 50Hz ~ 500Hz
45Hz ~ 850Hz N/A
5Hz ~ 500Hz
105dB
75
4 x 125W
1 x 660W
N/A 1 x 1000W
N/A
2 x 250W N/A
9V ~ 16V
N/A 5Hz ~ 40Hz
N/A 0dB ~ 12dB @ 50Hz
1.5mm² (15 AWG)
0.4 ~ 10V
N/A
2.10 kg 4.62 ( lb)
3.82 kg 8.42 ( lb)
297.9mm (11.7") 286.2mm (11.2")
54.4mm (2.1")
119.3mm (4.7")
149.9mm (5.9")