Soundstream Stealth 1200D Manuale utente

Stealth Amplifier Series

Owner’s Manual

CONGRATULATIONS !

You now own a Stealth 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

Stealth Amplifier sounds better than anything you've heard, exercise caution to prevent hearing damage .

FEATURES

l STACKABLE INSTALLATION.

l COMPACT SIZE AND TINY FOOTPRINT.

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 FOR MONO MODEL.

l ACTIVE X-OVER FUNCTION.

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 (Mono)

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 (Mono and 2-ch)

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 (4-ch)

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 (4-ch)

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 (4-ch)

This switch can boost bass level by 0dB, 6dB or 12dB. The boost frequency is

centered at 50Hz.

16. Input mode switch (4-ch)

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. X-over mode and frequency Control (2-ch)

These controls allow control over the frequencies played for STL2.350 & STL2.560.

There is an option for Low Pass, Full Range or High Pass. In LP mode the frequency range is

from 50Hz to 200Hz, In HP mode the frequency range is from 15Hz to 200Hz.

18. Power Indicator

This LED will light up when amplifier works properly.

19. 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.

PANEL LAYOUT

123 4

5 68 7

918

12 19

Fig 1. STL1.600D/STL1.1200D Panel layout

PANNEL

LAYOUT

PANEL LAYOUT

Fig 2. STL4.320/STL4.500 panel layout

123 4

568

13 568

15161918

PANEL LAYOUT

Fig 3. STL2.350/STL2.560 panel layout

123 4

568

1819 17

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 Stealth amplifiers can be stacked. Models STL4.500, STL2.560 and

STL1.1200D are the same size; and models STL4.320, STL2.350 and STL1.600D are a

smaller size. Make sure your amplifiers are the same size when you stack them. Plan the

installation of the amplifiers and find a suitable location with sufficient air circulation.

2. Check the drawing below to mount the bottom amplifier.

Fig 4. Mount bottom amplifier

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