Soundstream Technologies SA.244, SA.120, SA.245 owner manual Channels is active

In most car audio installations, there is a tendency for a “midbassboom.” 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 SA-120, 244, & 24s

incorporate a staggered electronic crossover. The high and low pass portions of the

crossover can be set independent of one another.

_I Below is a chart of S.I.P. values vet which can be used for changing pass the factory preset crossover points (low pass only on SA-245).

FREQUENCY RESISTOR VALUE COLOR CODE

53 Hz		30Kn	Green-Green
73 Hz		22Kc2	Green-White
~_~_ ~- .- .c-_-.--l._-			.~.._^I_. --_ .-.--.----
a9 Hz		1aKn
107	Hz	15KR	Violet-Green
145	Hz	11 KR	Violet-White
195Hz		a.2 K fi
288	Hz	5.6 K n
485	Hz	3.3 K n
aookk		2.0 K n

NOTE: The following formula may be used to detenniie values in ctiating %ustom” resistor packs. The h-equency is equal to l&J0 ijivided by the individua/tesistorva/ue,or16000YKYRkohms=xHz. TomakeacustomS.l.P., use 4 identic8lty valued t&&tom of 296 or tighter tolerance. See the di+wfi)g of the S.I. P. for more inf&matM

4 INSTALLATION STEP 2 t

Your multi-channel Soundstream amplifiir (SA-244 81245) can be driven with either one or two pairs of stereo inputs (three with the SAM& If your source unit has front and rear outputs, you can take advantage of its fading capability by driving the multi-channel amplifiers with two pairs of input In addition, if you have

Ianother amplifier, you can drive it with the outputs of the SAgI or 244. When operating a pair of amplifier channels in mono, only one input is necessary.

I On Sound&ream* amplifiers, pairs of channels may be bridged for mono operation. To do so, simply put the stereo switch into the ‘mono” position and follow the mono wiring (Right Positive goes to speaker’s positive; Left Negative goes to speaker negative).

Stereo for normal operation.

Mixed-MOnO in order to drive stereo and mono simultaneously; works well for center channels. It can be used 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 for dedicated single channel operation; ideal for driving subwoofers. It is also used when large amounts of power are necessary for single speakers. In bridged mono, on/y the rlgfrt channel input (per pa/r of

channels) is active.

STEREO	MONO	MIXED MONO
UseL&Rlnputs	Use R Input Only	lJseL&Rhwuts
_Q+ _Q+	-0, _a+

;-I

MONO

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