DESIGN FEATURES
Handcrafted in the U.S.A. with
Darlington High Current Discrete Output Topology - Soundstream’s “overbuilding” of the output section incorporates Darlington output devices sandwiched between the circuit board and the heat sink in a design called ChassisinkTM to ensure cool, efficient amplifier operation.
Mixed Mono Capable so you can simultaneously drive a stereo and 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.
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
Flexible Input Sensitivity - Accepts input voltages from 100 mV to 2.5 V (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.
| Power | Power | Bridged Power |
| 4 ohms | 2 ohms | 4 ohms |
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SA.120 | 60~x2 | 9owx2 | 180~x1 |
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60~x4 | 9owx4 | 180~x2 | |
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SA*245 | 35wx4+ | ||
| 1oow x 1 | 150wx 1 |
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4 INSTALLATION STEP 1 t
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), as well as the outputs (SAmI & SA*244). The SA*120, 244, & 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.
CHANNELS 1 & 2 | CHANNELS 3 & 4 |
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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.
NOTES on the SA.244 crossover:
+High Pass RCA signai’ oirtlj&t is derfved ,frwn chtpcefs I & 2 @&. To ac#ust the cnksovei ft$uenc$, change’ th+. .~hanneis I & 2’H&jh Pass S,l, P.
+Low Pass RCA sign+ outputis de@& I@n ;chsinneis’ i,2;3 &4 inputs. To a@& the cmssovei f#Quency, change bo@ Chatyei+ ?‘S; ‘2 and Channels 3 & 4 Low Pass S.1.P. k B&i Low Pa& S.i.P.‘s tqpt be identical when usin$j the Low Pass RCA, &puts!
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