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

LARGEST MODEL WHICH IS .5-OHM LOAD STABLE).

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

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

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 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

PANEL LAYOUT

Fig 1. Mono amplifier panel layout

12

11

10

9

8

18

17

DTR1.900D / DTR1.1400.D / DTR1.1700D / DTR1.2200D / DTR1.3400D

1

6

5

7

2

4

3

PANEL LAYOUT

Fig 2. 4-ch amplifier panel layout

17

18

16

15

13

8

14

DTR4.500

1

6

5

2

4

3

5

6

CONNECTING THE AMPLIFIER

1. Select cable and fuse according to the following table.

MODEL DTR1.900D DTR1.1400D DTR1.1700D DTR1.2200D DTR1.3400D DTR4.500

CABLE

FUSE

6-4

80A

4

100A

4-2

150A

2-0

200A

0

250A

6-4

60A

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.

WIRING DIAGRAM

Fig 4. Mono amplifier wiring

(1 woofer load)

Source Unit

RCA signal

FUSE

REMOTE signal

+ R - R

-INPUT

+ L

L

HIGH

WIRING DIAGRAM

Fig 5. Mono amplifier wiring

(High level input mode)

Source Unit / Original Amplifier

Speaker signal

FUSE

ON/OFF control signal

Fig 6. Mono amplifier wiring

(multi woofers)

Source Unit

RC

A s ign al

REMOTE signal

*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 multichannel amplifiers.

FUSE

INPUT

R + R -

-

L + L

HIGH INPUT

R + R -

-

L + L

HIGH

WIRING DIAGRAM

Fig 7. DTR4.500 wiring

(4-channel mode)

Source Unit

RCA signals

REMOTE signal

Fig 8. DTR4.500 wiring

(3-channel mode)

FRONT

INPUT

2-Ohm to 4-Ohm 2-Ohm to 4-Ohm

2-Ohm to 4-Ohm 2-Ohm to 4-Ohm

FUSE

2-Ohm to 4-Ohm

2-Ohm to 4-Ohm

FUSE

4-Ohm to

8-Ohm

Source Unit

RCA signals

REMOTE signal

FRONT

INPUT

INPUT

-

R

+

R

-

-

L

+

L

HIGH

INPUT

R + R -

-

L + L

HIGH

INPUT

-

R

+

R

-

-

L

+

L

HIGH

INPUT

R + R -

-

L + L

HIGH

WIRING DIAGRAM

Fig 9. DTR4.500 wiring

(active x-over mode)

Tweeter Woofer

Tweeter

FUSE

Woofer

Source Unit

RCA signals

REMOTE signal

Fig 10. DTR4.500 wiring

(High level input mode)

Source Unit / Original amplifier

Speaker signal

FRONT

INPUT

Speaker signal

FRONT

INPUT

2-Ohm to 4-Ohm 2-Ohm to 4-Ohm

2-Ohm to 4-Ohm 2-Ohm to 4-Ohm

FUSE

ON/OFF control signal

INPUT

R + R -

-

L + L

HIGH

INPUT

-

R

+

R

-

-

L

+

L

HIGH

INPUT

-

R

+

R

-

-

L

+

L

HIGH

INPUT

R + R -

-

L + L

HIGH

TROUBLE SHOOTING

Symptom

Amplifier will not power up

Protection

LED Comes on

No output

Low output

High hiss in

The speakers

Distorted sound

Amplifier gets

Very hot

Possible Remedy

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.

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 .

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.

Reset the level Control.

Check the Crossover Control settings.

Check the RCA cable is not shorted to power ground at amplifier side.

Check the amplifier grounding.

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.

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.

SPECIFICATIONS

Model DTR1.900

0.5 Ohm

1 Ohm

2 Ohm

4 Ohm

Input Level

High Level Input

Frequency Response

X-over Type

N/A

900

600

N/A

DTR1.1400

DTR1.1700

DTR1.2200

RMS Power at 14.4V

N/A N/A N/A

1400

900

N/A

1700

1100

N/A

Features

0.2V - 5V

2200

1400

N/A

Yes

10Hz - 220Hz

LPF/Subsonic

DTR1.3400

3400

2200

N/A

N/A

LPF

Subsonic / HPF

Bass Boost Frequency

Bass Boost Level

THD

Damping Factor

S/N Ratio

Phase Shift

Minimum Load

Voltage Protection

Components & PCB

Bass Remote

Height

Width

Length

291mm

11.46"

40Hz - 220Hz

10Hz - 50Hz

296mm

11.65"

30Hz - 90Hz

0-12dB

<0.5%

>200

>85dB

0-180

1 Ohm

<8.4V & >16V

0.5 Ohm

SMD Parts / Double-Sided FR-4 PCB

Yes

Dimensions

190mm / 7.5"

84mm / 3.3"

371mm

14.61"

401mm

15.79"

451mm

17.75"

DTR4.500

N/A

N/A

125

80

0.2V - 5V

Yes

15Hz - 25kHz

LPF/Full/HPF

Front 50Hz - 4kHz Rear

50Hz - 800Hz or 250Hz -

4kHz

Front 50Hz - 4kHz Rear

15Hz - 500Hz

50Hz

0dB, 6dB, 12dB

<0.05%

>200

>100dB

N/A

2 Ohm

<8.4V

N/A

190mm / 7.5"

84mm / 3.3"

291mm / 11.46"