Soundstream Technologies SA.245, SA.244, SA.120 User Manual

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S@UNDSTREYW’@

SAd20 SAe244 SAa

Power Amplifiers

OWNERS MANUAL AND

INSTALLATION GUIDE

245

SWNDSTREAM’

TECHNOLOGiES

SA.120

Diagram.. ........................................................

SA.244 Diagram..

TABLE OF CONTENTS

.........................................................

4 - 5

6 -7

CCMGRA

You now own a Soundstream Amplifier, the result of a unique design and engineering philosophy.

To maximize the performance of your system, we recommend that you thoroughly acquaint yourself with its capabilities and features. Please retain this

manual and your sales and installation receipts for future reference.

TULA TIUMS.’

SA*245

Features Crossover Modes and Adjustments.. Selecting Input Modes.. Wiring & Wiring Installation and Mounting.. Level Setting

Diagram

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Diagram..

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Sample Systems .....................................................

Protection Circuitry & Troubleshooting Service

Specifications..

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8-9

.I0

11- 12

.I3

14 - 15

.I6

.17

18 - 21

.22

..2

.23

Soundstream highest quality control standards, and when properly installed, with many years of listening pleasure. Please record the following information which will help protect your investment should your amplifier ever need

replacement or service.. Serial

am’plifiers

are the result of American craftsmanship and the

will

provide you

Dealer’s Name

Date of Purchase

Installation Shop

Installation Date

1 2 3

Key to

+12V

- Connected to fuse or circuit breaker, then battery’s positive post.

Ground - Main ground connection. Bolt to a clean chassis ground in the

vehicle.

Remote - Remote turn-on input from the head unit. Accepts

LED - Indicates amplifier power on.

Speaker Output Connections - Channels 1 & 2

Crossover Output - Low level output to auxiliary amplifier for high or low

Top view

(partial)

6 7 6 9

Side view

I-

I II

1 I

pass.

Bass EQ - Adjustable bass equalization circuit, Cl to +9 dB boost at 45 Hz.

Input Level - Variable from

Inputs - Right and left channel inputs; only right channel input used in

“Mono” mode.

[underside] Main Fuse - Main power supply fuse. Replace only with

16.

same fuse value.

[underside] Crossover

11. amplifier and crossover line outputs.

[underside] Stereo/Bridged Mono Switch - Select “Mono” for bridged

12. operation (use only right channel input) or “Stereo” for 2-channel Stereo or

Mixed Mono operation; See crossover section for more details.

[underside] Line Out Crossover Switch - Select high pass, low pass, or

13. full range operation of crossover outputs.

[underside] Amplifier Crossover Switch - Select high pass, low pass, or

14. full range operation of amplifier.

[underside] Bass EQ Switch - On/Off switch for bass equalization circuit.

15.

S.1.P.s -

Callouts

100mV

2.5V.

Crossover frequency settings for

+12V.

Underside view

Underside View

Key to Cailouts

+12V -

Connected to fuse or circuit breaker, then battery’s positive post.

Ground - Main ground connection. Bolt to a clean chassis ground in the vehicle.

Remote - Remote turn-on input from the head unit. Accepts

LED - Indicates amplifier power on.

Speaker Output Connections - Channels 1 & 2

High Pass Crossover Output - Low level high pass outputs to auxiliary amplifier.

Bass EQ - Adjustable bass equalization circuit, 0 to +9 dB boost at 45 Hz-Channels 1 & 2.

Input Level - Variable from

Inputs - Right and left channel inputs; only right channel input used in “Mono” mode-Channels 1 & 2.

IO.

Speaker Output Connections - Channels 3 & 4

11,

Low Pass Crossover Output - Low level low pass output to auxiliary amplifier.

12.

Bass EQ - Adjustable bass equalization circuit, 0 to +9 dB boost at 45

Hz-Channels 3 8 4 & low pass output.

13.

Input Level - Variable from

14.

Inputs - Right and left channel inputs; only right channel input used in “Mono” mode-Channels 3 & 4.

15.

[underside] Main Fuse - Main power supply fuse. Replace only with same fuse value.

16.

[underside] Xover outputs-channels 1 & 2 8 high pass and low pass outputs.

17.

[underside] Xover outputs-Channels 3 & 4 & low pass outputs.

18.

[underside] Stereo/Bridged Mono Switch - Select “Mono” for bridged operation (use only right channel input) or “Stereo” for 2-channel Stereo or Mixed Mono operation; See crossover section for more details-Channels 1 & 2.

19.

[underside] Amplifier Crossover Switch - Select high pass, low pass, or full range operation-Channels 1 & 2.

20.

[underside] Bass EQ Switch - On/Off switch for bass equalization circuit-Channels 1 & 2.

21.

22.

[underside] Amplifier Crossover Switch - Select high pass, low pass, or full

range operation-Channels 3 & 4.

23.

[underside] Bass EQ Switch

circuit-Channels 3 & 4.

[underside] Input Select - Selectable inputs from internal (from channels 1

2) or external.

S.1.P.s -

IOOmV

2.5V-Channels

1OOmV

2.5V-Channels

Crossover frequency settings for amplifier and

On/Off switch for bass equalization

+lZV.

1 & 2.

3 & 4.

Key to

+12V - Connected to fuse or circuit breaker, then battery’s positive post.

Ground - Main ground connection. Bolt to a clean chassis ground in the vehicle.

Remote - Remote turn-on input from the head unit. Accepts +I 2V.

LED - indicates amplifier power on.

Speaker Output Connections - Sub Channels.

Bass EQ - Adjustable bass equalization circuit, 0 to +9 dB boost at 45

Hz-Sub Channel only.

Input Level - Variable from 40mV to

Inputs - Right and

Speaker Output Connections - Channels 1 & 2

IO.

Input Level - Variable from

11.

ShSSVkW

Inputs - Right and left channel inputs; only right channel input used in “Mono” mode-Channels 1 & 2.

12.

Speaker Output Connections - Channels 3 & 4

13.

input Level - Variable from 1

14.

Inputs - Right and left channel inputs; only right channel input used in “Mono” mode-Channels 3 & 4.

15.

[underside] Main Fuse - Main power supply fuse. Replace only with same

fuse value.

18.

[underside] Xover S.I.P. - Crossover frequency setting for subwoofer

channel.

17.

[underside] Bass EQ Switch - On/Off switch for bass equalization circuit-Subwoofer Channel.

18.

[underside) Subwoofer Input Select - Selects sub channel input from internal (Channels l-4) or external.

19.

[underside] Amplifier Crossover Switch - Select high pass or full range operation-Channels 1 & 2.

20.

[underside] Stereo/Bridged Mono Switch - “Mono” for bridged operation (use only right channel input) or “Stereo” for 2-channel Stereo or Mixed Mono operation; See crossover section for more details-Channels 1 & 2.

21.

[underside] Amplifier Crossover Switch - Select high pass or full range operation-Channels 3 & 4.

[underside] Input/Stereo/Bridged Mono Select - Selectable inputs from internal (from channels 1 & 2) or external and stereo or mono-Channels 3

4. “Mono” for bridged operation (use only right channel input) or “Stereo”

for 2-channel Stereo or Mixed Mono operation.

let?

channel inputs; Subwoofer Channel.

Callouts

IOOmV

OOmV

2.5V-Subwoofer

2.5V-Channels

Channel.

1 & 2.

3 & 4.

INSTALLATION STEP 1

DESIGN FEATURES

Handcrafted in the U.S.A. with mil-spec glass epoxy circuit boards, low-loss connections, gold plated input connectors, and metal film resistors.

Darlington High Current Discrete Output Topology - Soundstream’s “overbuilding” of the output

sandwiched between the circuit board and the heat sink in a design called

ChassisinkTM

Mixed Mono load (satellites and subwoofer).

2 Ohm Drive Ability - Soundstream SA Series amplifiers are designed to drive loads down to 2 Ohms stereo and 4 Ohms bridged.

Built-in Staggered Asymmetrical Crossover - Built in 2-way electronic

crossover is designed to send either high or low pass information to the amplifier. Outputs are included to drive another amplifier with either high or

low pass information

Bass EQ - Adjustable bass equalization circuit allows you to boost bass by

as much as +9 dB at 45 Hz. A built in subsonic filter protects speakers. Drive Delay” Muted Turn-on/off Circuit - A unique circuit which

completely eliminates any amplifier-related turn-on/off noises.

Flexible Input Sensitivity - Accepts input voltages

(from 40 mV to 2.5 V on the SA.245 subwoofer channel), which permits maximum output from amplifier with virtually any source unit.

“Balancing Act” Input Topology for added immunity to ground loops caused by component and vehicle electrical system interaction.

to ensure cool, efficient amplifier operation.

Capable so you can simultaneously drive a stereo and

(SA-120 & SA.244).

Power

4 ohms

SA.120

SA-244

60~x2

60~x4

SA*245

35wx4+

1oow

section incorporates Darlington output devices

from 100 mV to 2.5 V

Power 2 ohms

9owx2

9owx4

Bridged Power

4 ohms

180~x1

180~x2

5owx4+-p5q

x 1

150wx 1

mono

SETTING THE CROSSOVER MODES

The Soundstream SA.120, 244, & 245 incorporate a replaceable S.I.P. electronic crossover for each of their pairs of channels(sub channel only on

SA*245),

amplifiers can drive a complete system without need of an outboard electronic crossover.

Before installing the amplifier, make certain the switches on the bottom are set

to the correct positions and hole plugs are installed on the bottom of the

amplifier.

LOW PASS

The low pass crossover is used for sending only low frequency information to particular speakers (or crossover outputs). Activate the low pass crossover if you intend to drive subwoofers.

HIGH PASS

The high pass crossover is used for sending only midrange and high frequency

information to particular speakers (or crossover outputs). Activate the high pass crossover if you intend to drive satellite or coaxial speakers in the system along with subwoofers. Even if your system does not include subwoofers, it may be helpful to activate the high pass crossover with smaller speakers to protect them from low frequency information.

as well as the outputs

CHANNELS 1 & 2 CHANNELS 3 & 4

NOTES on the

High Pass

ac#ust

Pass

Low Pass RCA sign+

a@&

SA.244

RCA signai’ oirtlj&t

the

cnksovei ft$uenc$,

S,l,

the cmssovei

Channels 3 & 4 Low Pass

identical

when usin$j

(SAmI

SA*244).

The

crossover:

derfved ,frwn chtpcefs I

change’

outputis de@&

I@n

;chsinneis’

th+. .~hanneis

f#Quency, change bo@ Chatyei+ ?‘S;

S.1.P. k B&i

the Low Pass

Low

RCA, &puts!

Pa& S.i.P.‘s tqpt

SA*120,

i,2;3 &4 inputs.

244, & 245

& 2

@&.

I &

2’H&jh

‘2 and

INSTALLATION STEP 2

In most car audio installations, there is a tendency for a

“midbass

boom.” Because of their interior dimensions, most cars will resonate or ring at these

midbass

frequencies. If we design the system so there is less musical information in this region, the final response is very smooth and natural sounding.

The

incorporate a

SA-120,

244, &

staggered

24s

electronic crossover. The high and low pass portions of the crossover can be

set

independent of one another.

Below is a chart of S.I.P. values

vet

pass

FREQUENCY RESISTOR VALUE

~_~_ ~-

53 Hz 73 Hz

.c-_-.--l._-

a9 Hz 107 Hz 145 Hz

195Hz

288 Hz 485

Hz 3.3 K

aookk

30Kn 22Kc2 1aKn 15KR

a.2 K

5.6K n

2.0 K

n n

which can be the factory preset crossover

points (low pass only on SA-245).

.~.._^I_.

--_

.-.--. ----

used

for changing

COLOR CODE

Green-Green

Green-White

Violet-Green Violet-White

Your multi-channel Soundstream amplifiir either one or two pairs of stereo inputs (three with the has front

and rear outputs, you can take

driving the multi-channel amplifiers with two pairs of input

I I

another amplifier, you can drive it with the outputs of the operating a pair of amplifier channels in mono, only one input is necessary.

Sound&ream*

operation. To do so, simply put the

amplifiers, pairs of channels may be bridged for mono

stereo

(SA-244 81245)

can be driven

SAM&

with

If your source unit

advantage of its fading capability by

In addition, if you have

SAgI

or 244. When

switch into the ‘mono” position and follow the mono wiring (Right Positive goes to speaker’s positive; Left Negative goes to speaker negative).

Stereo

Mixed-MOnO

center channels. It can be used

for normal operation.

in order to drive stereo and mono simultaneously; works well for

anytime you need a

summed mono channel. It also makes for a cost-effective means of driving an entire system with only 2 channels of amplification.

Bridged Mono

subwoofers. single speakers.

for dedicated single channel operation; ideal for driving

It is also used when large amounts of power are necessary for

In bridged

mono,

on/y

the

rlgfrt

channel input (per

pa/r

channels) is active.

STEREO

UseL&Rlnputs

_Q+ _Q+

;

MONO

Use R Input Only

-0,

_a+

-I

MIXED MONO

lJseL&Rhwuts

NOTE:

%ustom”

The

following formula may be used to

resistor packs.

The

h-equency

detenniie

equal

values in ctiating

l&J0 ijivided

by the

individua/tesistorva/ue,or16000YKYRkohms=xHz. TomakeacustomS.l.P.,

use 4 identic8lty the S.I. P.

valued t&&tom of 296 or tighter tolerance.

for more inf&matM

See

the

di+wfi)g

MONO

INSTALLATION STEP 3

WIRING

POWER AND GROUND

To assure maximum output from your amplifier, use high quality, low-loss power and ground cables. Soundstream SA amplifiers incorporate gold-plated barrier strips for maximum power transfer and protection from corrosion. The screw terminals back out for use with spade & ring terminals, as well as bare wire. Determine from the chart below the minimum gauge power and ground wire for your application.

{Continued from page 14)

INTERNAL

The Soundstream amplifiers are fused internally with automotive-type fuses. The fuses are accessible via a plastic plug on the bottom of the amplifier. Never

replace the fuses with a higher value than what is supplied.

result in amplifier damage and

REMOTE TURN-ON

Connect the ‘Remote” to the turn-on lead from the source unit. is received, the amplifier will

turn

wilf

on.

void

the

warranty!

This may

When +I2

volts

up to

Power1

70’

amplifjers

SA9245

CIRCUIT BREAKERS/FUSES

EXTERNAL

Like all other amplifiers, the Soundstream battery. A fuse or circuit breaker must be located within 18” of the battery. This will prevent a fire in the event of a shorted cable. See the chart below to determine the value of your battery fuse/circuit breaker.

Model Amplifier Fuse Battery Fuse/

SA.120 1 SAa244 SAm245

Soundstream Power80

(

or 8 or 10 ga.)

25 amp automotive 30 amp automotive 30 amp automotive

up to 20’

Soundstream Power80

(8 ga.)

Soundstream Power80

(8 ga.)

Soundstream Power80

(8 sa.)

must be fused near the

Circuit Breaker

30 amp 40 amp 40 amp

SlGNAL CABLE

Depending on your application and amplifier use one, two, or three pairs of signal cables to drive your amplifier. To guarantee optimum performance, use a high-quality cable that will be easy to install and has minimal signal loss.

SPEAKER CABLE

Use a high quality, flexible, multi-strand cable for best performance and longevity. Soundstream Speaker120 & 160 (12 & 16 gauge) are ideal.

(SA*120,

244, or

245),

you may

WIRING DIAGRAM

To Rarnota

TUlTiUll

Chassis

Fuse

0lllUl-d

(Continued

on page 15)

HEAD UNIT

INSTALLATION STEP 4

~INSTALLATI~N

STEP

INSTALLATION AND MOUNTING

AMPLIFIER LOCATION

The SA amplifiers employ highly efficient circuitry and a unique Chassisinkm design to maintain lower operating temperatures. Additional cooling may be required if the amplifier is located in a tightly confined area, or when driving especially low impedance loads at extremely high levels.

When mounting the amplifier, it should be securely mounted to either a panel in the vehicle or an amp board or rack that is securely mounted to the vehicle. The mounting location should be either in the passenger compartment or in the trunk of the vehicle, away from moisture, stray or moving objects, and major electrical components. To provide adequate ventilation, mount the amplifier so that there are at least two inches of freely circulating air above and to the sides of it.

SWITCHES

Set Input and Crossover switches to the appropriate positions (see pages 18 -

21). Be sure to re-install the plugs included with the amplifier.

MOUNTING THE AMPLIFIER

a. Using the amplifier as a template, mark the mounting surface.

b. Remove the amplifier and drill the holes.

c. Mount the amplifier to the surface using the provided hardware.

WIRING

a. Route and connect the audio signal and remote turn-on cables to the

amplifier from the source unit.

b. Carefully run the positive cable from the amplifier to a fuse or circuit

breaker within 18 inches of the battery.

c. Then connect the fuse or circuit breaker to the battery. Leave the circuit

breaker off or the fuse out until everything is bolted down.

d. Secure the ground cable to a solid chassis ground on the vehicle. It may be

necessary to sand paint down to raw metal for a good connection. e. Double check each and every connection! f. Re-connect the fuse or circuit breaker.

LEVEL SETTING

The input levels are adjusted by means of the input level controls located on the front of the amplifier.

In the ideal situation, all components in the audio system reach maximum undistorted output at the same time. The reason is because an amplifier will only make what comes into it bigger. So, if you send it a distorted signal from the head unit, it is going to amplify distorted information. The same thing holds true if an outboard processor or crossover begins to distort before you have maximum output from the amplifier. By setting all components to reach clipping at the same time, you can maximize the output of your system.

Follow the below procedure for the quickest, easiest means of setting the levels:

1. Turn the amp’s input levels to minimum position (fully counter-clockwise).

2. Set source unit volume to approximately 314 of full volume.

3. While playing dynamic source material, slowly increase the amplifier’s input level until a near maximum undistorted level is heard in the system.

NOTE:

$tchiev6d

Your best combination of output and Signal to Noise ratio will be

when the input levels

tike

set between

5OO’mV

and

2.5 V.

POWER UP

Power up the system and look at the LED and it should be lit. There may be a 2 - 3 second delay from the time the source unit is turned on to the time the LED on the amp turns on, which is normal. Once the amplifier power LED is on and the source unit is playing, you should have sound coming from the speakers.

SAd

SAe244

pass outputs to an

SOUNDSTREAN

a@fiary

amplifier

SA.00

SOUNDSTREAM

SA420

Stereo amplifier in high pass; low pass

output to an

auxiliary amplifier

HEAD UNIT

S&110

SOUNDSTREAM

SA.244

SOUNDSTREAM

SA.244 /

SAa244

SAe245

liig h pass;

SOUNDSTREAM SOUNDSTREAM

lowi pa?s Up@

SA*244

2 channels of input; 2 bridged channels

in low pass, high pass output to an

auxiliary amplifier

(

HEADUNIT

[

HEADUNIT

2 channels of

high

pass, mono channel in low pass

)

SOUNDSTREAM

input

with

2 channels in

SOUNDSTREAM

SAd46

sA.246 I

PROTECTION CIRCUITRY

SERVICE

Your SA amplifier is protected against both overheating and short circuits by means of the following circuits:

l Main power supply fuses. l A fail-safe thermal protection circuit activating at 95°C. l Self-resetting circuit breakers to protect against short circuits.

NOTE: If you experience blown main power supply fuses, DO NOT increase

values

beyond the original

damage your amplifier.

values!

Doing so will void your warranty

and may

TROUBLESHOOTING

PROBLEM

No sound and LED is not lit

Repeatedly blown amp

fuse, frequent activation of Thermal Protection Circuit

power or ground at amp

l no remote turn-on signal l blown fuse near

check speaker impedance may be less than 2 ohms stereo or 4 ohms mono

speaker or leads may be shorted

verify adequate amplifier

ventilation

CAUSE

battery

configuration-

Your Soundstream amplifier is protected by a limited warranty. Please read the

enclosed warranty card.

SPECIFICATIONS

POWER OUTPUT

SA*120 SA*244 S&245

THD

Signal to Noise Frequency Response Damping Input Sensitivity

Input Impedance

Crossover Output

2 R

4 R Stereo

60~x2 60~x4

35wx4+

IOOWX

0.1%

Stereo

9owx2 9Owx4

5Owx4+

150wx 1

>90dB

20 Hz to 20

200

100

mV-2.5V

(40 mV - 2.5 V on the

kHz +/-

0.5

SA.245

12 k ohms

400 mV out w/ 100 mV input at 1

Bridged

18Owx

18Owx2 lOOwx2

n/a

subwoofer channel)

kHz

No sound from channels 3 & 4 with

2 channels of input

Channels cut in and out

check input settings on bottom of amplifier-switch should be set to inputs “1 & 2”

circuit breakers are activating. Check for a possible short in the speaker wire or in the speaker itself

verify that the impedance of the load is at or above the minimum rated impedance

CROSSOVER SPECIFICATIONS

High Pass: 12 Low Pass:

dB/octave,

shipped with 160 Hz S.I.P. (fixed on

shipped with

shipped with 80 Hz S.I.P.

DIMENSIONS

SA.120: SA*244: SA.245: 14-l/4”

8-l/2” W x

13-l

/4”

W x 8-3/l 6” D x 2-3/l 6” H

W x

a-3/16”

D x

2-3116”

2-3/16”

80 Hz S.I.P.

H H

SA*245)

(SA*120 & 244)

(SA.245)

PARALLEL/SERIES WIRlNG

DIAGRAMS

Amplifier

/‘4

Ohm

two 4 ohm woofers

in parallel

‘\,

,a.

,/’

4 Ohm

2 ohms

“,,x ..,,,

Amplifier

I I

two 4 ohm woofers

in series

8 ohms

SWNDSTREAIV’

C H N 0 L 0 G I E S

SOUNDSTREAM TECHNOLOGIES

120 Blue Ravine Road Folsom California 95630 USA

ph 916.351.1288 fax 916.351.0414

ver.ozw5a

Soundstream Technologies SA.245, SA.244, SA.120 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual