Soundstream D-Tower Amplifier Series User manual

D-Tower Amplifier Series
Owner’s Manual

CONGRATULATIONS !
You now own a D-Tower Amplifier, the product of an uncompromising design
and engineering philosophy. We suggest you take a moment to document
the information below, which will be helpful in the event of theft or if service
is needed. Please retain this manual and your sales receipt for future
reference.
SOUNDSTREAM amplifiers are the result of American innovation and the
highest quality control standards. When properly installed, they will provide
you with many years of listening pleasure. Should your amplifier ever need
service or replacement due to theft, Please record your information on the
following lines to refer to in the event that you may need it later.
Serial# ___________________________
Dealer's Name______________________
Date of Purchase____________________
Installation Shop____________________
Installation Date ____________________
CAUTION !
Prolonged listening at extremely high levels may result in hearing loss. Even though your new Soundstream D-
Tower Amplifier sounds better than anything you've heard, exercise caution to prevent hearing damage .

FEATURES
l THE WORLD’S FIRST VERTICAL CAR AMPLIFIER.
l COMPACT SIZE AND TINY FOOTPRINT.
l SINGLE END CABLE WIRING.
l DOUBLE SIDE PCB AND SMD COMPONENTS.
l FULL MOSFET DESIGN.
l LPF AND SUBSONIC CROSSOVER.
l ADJUSTABLE BASSBOOST FREQUENCY AND LEVEL.
l INFINITELY VARIABLE PHASE CONTROL.
l 1-OHM LOAD STABLE FOR ALL CLASS-D MODELS (EXCEPT FOR
LARGEST MODEL WHICH IS .5-OHM LOAD STABLE).
l HEAVY-DUTY ALUMINUM ALLOY HEATSINK.
l HIGH (Speaker) OR LOW (RCA) LEVEL INPUTS.
l OVERLOAD, OVERHEAT, HIGH/LOW VOLTAGE PROTECTION.
l RoHS COMPLIANT.
FEATURES

CONTROL FUNCTIONS
1. SPEAKERS
Connect speakers/subwoofers to these terminals. Be sure to check wire for proper
polarity. Never connect the speaker cables to chassis ground.
2. +12 Volt Power
Connect this terminal through a FUSE or CIRCUIT BREAKER to the positive terminal of
the vehicle battery or the positive terminal of an isolated audio system battery.
Warning: Always protect this power cable by installing a fuse or circuit breaker of the
appropriate size within 18 inches (45cm) of the battery terminal connection.
3.Remote Turn On
This terminal turns on the amplifier when (+)12 volt is applied to it . Connect it to the
remote turn on lead of the head unit or signal source.
4.GND
Connect this cable directly to the frame of the vehicle. Make sure the metal frame
has been stripped of all paint down to the bare metal. Use the shortest distance possible.
It is always a good idea to replace the factory ground at this time with a larger cable equal
to the new amplifier power cable or larger. CAUTION: Do not connect this terminal directly
to the vehicle battery ground terminal or any other factory ground points.
5. RCA input jacks
These RCA input jacks are for use with source units that have RCA outputs. A source
unit with a minimum level of 200mV is required for proper operation. The use of high
quality twisted pair cables is recommended to decrease the possibility of radiated noise
entering the system.
6. High level inputs
The high level inputs are for use with speaker level wiring. Some source units do not
have RCA outputs, so use this terminal for speaker level signal input. CAUTION: Never use
high level input when RCA inputs available.

CONTROL FUNCTIONS
7. REMOTE
Connect the remote controller to control the subwoofer amplifier volume from the
driver seat location, for ease of adjustment during playing.
8. LEVEL Control
The level control will match the amplifiers sensitivity to the source units signal
voltage. The Operating range is 200mV minimum to 5V maximum. This is NOT a volume
control!
9. Low Pass Filter Control
This control is used to select the desired low pass x-over frequency. The frequency
can be adjusted from 40Hz to 220Hz for all bass mono models.
10. Subsonic Filter Control
This control can filter out unwanted low frequency from 10Hz (OFF) to 50Hz. This
function will increase the power handling of your woofers.
11. Bass Boost Frequency and Level Control
By adjusting these two knobs, you can boost a wanted frequency to a wanted level.
The center boost frequency is adjustable from 30Hz to 90Hz, the boost level is adjustable
from 0dB to 12dB.
12. Phase Control
This control can adjust speaker output phase from 0 to 180 degrees infinitely to
match your system phase characteristics.
13. X-over mode and frequency Control (Full range)
These controls allow control over the frequencies played for the front channels.
There is an option for Low Pass, Full Range or High Pass. In LP or HP mode the frequency
range is from 50Hz to 4kHz.
CONTROL
FUNCTIONS

CONTROL FUNCTIONS
14. X-over mode and frequency Control (Monoblocks)
These controls allow control over the frequencies played for the rear channels.
There is an option for Low/BandPass, Full Range or High Pass. In HP mode, the frequency
range is from 15Hz to 500Hz. In LP mode, the frequency range can be switched from 50Hz
to 800Hz, or 250Hz to 4kHz. In the higher range, the LPF can be set at 4kHz for a midbass
while the front channels are also set at 4kHz for a tweeter resulting in a 2-way xover and
eliminating the need for a passive xover. Even with a set up like this, the midbass can still
be protected by the HPF which is not defeatable. It can be set anywhere in the 15Hz to
500Hz range creating a bandpass filter for the midbass by eliminating any damaging lower
frequencies in the subbass region.
15. Bass Boost Level switch
This switch can boost bass level by 0dB, 6dB or 12dB. The boost frequency is
centered at 50Hz.
16. Input mode switch
This function is for switching the rear channels' signal path. When switched to 4CH,
all 4 RCAs inputs are required. When switched to 2CH, the rear channels get their signal
input from the front channels in parallel.
17. Power Indicator
This LED will light up when amplifier works properly.
18. Protection Indicator
The red LED will light up and will be flashing if there is a fault presented to the
amplifier. Please disconnect the amplifier and resolve the fault before reconnecting the
amplifier.
INSTALLATION PRECAUTIONS
Before you install the amplifier, investigate your car's layout very carefully. Take
special care when you work near the gas tank, fuel lines, hydraulic lines and electrical
wiring. Before making or breaking power connections in your system, disconnect the

MOUNTING AMPLIFIER
1.Soundstream D-Tower amplifiers can be installed vertical or
horizontal. Plan the installation method and find a suitable location with
sufficient air circulation.
2. Check the drawing below to see how to mount the feet for vertical or
horizontal mounting.
3. Be sure to install the amplifier in a way that makes adjustments easy.
4. Make sure that the wiring is secure to avoid damage.
Fig 3. Feet installation
Fig 3. Feet installation
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 suggested by this manual. 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 warranty .
MOUNTING

PANEL LAYOUT
DTR1.900D / DTR1.1400.D / DTR1.1700D / DTR1.2200D / DTR1.3400D
Fig 1. Mono amplifier panel layout
1
2
4
3
7
5
6
8
9
10
11
12
17
18

PANEL LAYOUT
DTR4.500
Fig 2. 4-ch amplifier panel layout
1
2
4
3
5
6
8
13
15
16
18
17
5
6
14
PANNEL
LAYOUT

CONNECTING THE AMPLIFIER
1. Select cable and fuse according to the following table.
2. Connect the amplifiers ground cable to a close, bare metal part of the frame or
chassis. Use a nut and bolt, NOT a screw! The ground cable must be at least the same size
as the +12volt cable.
3. Connect the remote terminal to remote output of the head unit using 16 gauge (or
heavier) wire.
4. Connect the fuse holder within 18”(45cm) of the car battery, and run the selected
cable from this fuse to the amplifier.
5. Connect all the inputs with high-quality cables. Connect Remote Control if
necessary.
6. Insert fuse(s) into the battery fuse holder(s).
7. If using the rear channel of the DTR4.500 for a subwoofer, bridge the channels by
using the Left “+” and the Right “-“ terminals.
MODEL DTR1.900D DTR1.1400D DTR1.1700D DTR1.2200D DTR1.3400D DTR4.500
CABLE 6-4 4 4-2 2-0 0 6-4
FUSE 80A 100A 150A 200A 250A 60A
Fig 4. Mono amplifier wiring
HIGH-INPUT
L+ L- R+ R-
FUSE
Source Unit
RCA signal
REMOTE signal
WIRING DIAGRAM
(1 woofer load)