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)

Fig 5. Mono amplifier wiring
WIRING DIAGRAM
(High level input mode)
Fig 6. Mono amplifier wiring
(multi woofers)
FUSE
Source Unit / Original Amplifier
ON/OFF control signal
FUSE
Source Unit
RCA signal
REMOTE signal
Speaker signal
HIGH-INPUT
L+ L- R+ R-
HIGH-INPUT
L+ L- R+ R-
*Equivalent parallel woofer load cannot be
less than the minimum load rating. The 2
negative terminals are paralleled inside the
amplifiers, as are the 2 positive terminals.
These are monoblock amplifiers, not multi-
channel amplifiers.
WIRING

HIGH-INPUT
L+ L- R+ R-
HIGH-INPUT
L+ L- R+ R-
FRONT
INPUT
FUSE
CROSS OV ER C RO SSOVE R
CROSS OV ER C RO SSOVE R
Source Unit
RCA signals
REMOTE signal
HIGH-INPUT
L+ L- R+ R-
HIGH-INPUT
L+ L- R+ R-
FRONT
INPUT
FUSE
CROSS OV ER C RO SSOVE R
Source Unit
RCA signals
REMOTE signal
4-Ohm to
8-Ohm
2-Ohm to 4-Ohm
Fig 8. DTR4.500 wiring
(3-channel mode)
Fig 7. DTR4.500 wiring
WIRING DIAGRAM
(4-channel mode) 2-Ohm to 4-Ohm 2-Ohm to 4-Ohm
2-Ohm to 4-Ohm
2-Ohm to 4-Ohm
2-Ohm to 4-Ohm

HIGH-INPUT
L+ L- R+ R-
HIGH-INPUT
L+ L- R+ R-
FRONT
INPUT
FUSE
Source Unit
RCA signals
REMOTE signal
Fig 10. DTR4.500 wiring
(High level input mode)
Fig 9. DTR4.500 wiring
WIRING DIAGRAM
(active x-over mode)
Tweeter
Tweeter Woofer
Woofer
HIGH-INPUT
L+ L- R+ R-
HIGH-INPUT
L+ L- R+ R-
FRONT
INPUT
FUSE
CROSS OV ER C RO SSOVE R
CROSS OV ER C RO SSOVE R
Source Unit / Original amplifier
Speaker signal
Speaker signal
ON/OFF control signal
2-Ohm to 4-Ohm
2-Ohm to 4-Ohm
2-Ohm to 4-Ohm
2-Ohm to 4-Ohm

Symptom Possible Remedy
Amplifier
will not
power up
Check to make sure you have a good ground connection.
Check that there is battery power on the (+)terminal .
Check all fuses, replace if necessary .
Make sure that the Protection LED is not illuminated.
Protection
LED Comes on
Check for short circuits on speaker leads.
Check the speaker load not beyond the minimum load.
Remove speaker lead, and reset the amplifier. If the protection LED still
Comes on, then the amplifier is faulty and needs servicing .
No output Check that the RCA audio cables are plugged into the proper inputs.
Check all speakers wiring.
Check the headunit output and the amplifier level setting.
Low output Reset the level Control.
Check the Crossover Control settings.
High hiss in
The speakers
Check the RCA cable is not shorted to power ground at amplifier side.
Check the amplifier grounding.
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 load impedance for the amplifier model is correct.
Check that there is good air circulation around the amplifier. In some
applications, It may be necessary to add an external cooling fan.
TROUBLE SHOOTING

Model DTR1.900 DTR1.1400 DTR1.1700 DTR1.2200 DTR1.3400 DTR4.500
0.5 Ohm N/A N/A N/A N/A 3400 N/A
1 Ohm 900 1400 1700 2200 2200 N/A
2 Ohm 600 900 1100 1400 N/A 125
4 Ohm N/A N/A N/A N/A N/A 80
Input Level 0.2V - 5V
Hi gh Level Input Yes
Frequency Response 15Hz - 25kHz
X-over Type LPF/Ful l/HPF
LPF
Front 50Hz - 4kHz Rear
50Hz - 800Hz or 250Hz -
4kHz
Subsonic / HPF Front 50Hz - 4kHz Rear
15Hz - 500Hz
Bass Boost Frequency 50Hz
Bass Boost Level 0dB, 6dB, 12dB
THD <0.05%
Da mping Factor >200
S/N Ratio >100dB
Phase Shift N/A
Mini mum Load 0.5 Ohm 2 Ohm
Voltage Protection <8.4V
Components & PCB
Bass Remote N/A
Height 190mm / 7.5"
Width 84mm / 3.3"
Length 291mm
11.46"
296mm
11.65"
371mm
14.61"
401mm
15.79"
451mm
17.75" 291mm / 11.46"
<8.4V & >16V
SMD Parts / Double-Sided FR-4 PCB
0-12dB
<0.5%
Features
RMS Power at 14.4V
10Hz - 220Hz
190mm / 7.5"
LPF/Subsonic
40Hz - 220Hz
10Hz - 50Hz
30Hz - 90Hz
84mm / 3.3"
Dimensions
>85dB
0-180
1 Ohm
>200
Yes
0.2V - 5V
Yes
SPECIFICATIONS

Step Low Pass
(Hz)
Subsonic
(Hz)
Bass Boost
(dB)
Boost Freq.
(Hz)
Phase
(0)
151 13.2 03015
251 13.2 03015
351 13.2 03015
451 13.2 03020
551 13.2 0.1 30 23
652 13.2 0.1 30 25
752 13.2 0.2 30 30
852 13.2 0.3 30 37
952 13.5 0.5 31 43
10 53 13.5 13156
11 54 14 1.2 32 73
12 56 14.5 23388
13 58 15 2.8 34 100
14 62 15.3 3.4 35 110
15 65 15.8 4.2 36 118
16 68 16 4.7 37 125
17 72 16.5 5.4 38 131
18 76 17.5 5.8 40 136
19 82 18 6.4 41 140
20 87 19 6.7 42 143
21 90 19.5 7.25 43 146
22 95 20.5 7.5 46 149
23 103 21 8 47 152
24 113 22.5 8.5 50 154
25 123 24 9 52 156
26 135 25 9.2 56 158
27 150 27 9.4 59 160
28 166 29 9.8 62 161
29 183 31 10.2 65 162
30 208 33 10.5 69 163
31 222 35 10.7 74 164
32 238 36 10.8 76 164
33 239 38 10.9 78 164
34 240 38.5 10.9 80 164
35 240 39 11 81 165
36 240 39.5 11.1 82 165
37 240 40 11.2 84 165
38 240 40 11.3 84 165
39 240 40 11.3 84 165
40 240 40 11.3 84 165
41 240 40 11.3 84 165