Soundstream Technologies HRU. 2 - Manual (Page 7)

1. +12V - Connected to a fuse or circuit breaker, then to the battery’s positive terminal.
2. GND - Main ground connection. Bolt to a clean chassis point in the vehicle.
3. REMOTE - Remote turn - on input from the head unit. Accepts +12V.
4. Speaker connection Terminal - Speaker connections for satellite CH1 & 2.
5. Hawkins Bass Control “Boost” Adjustment - Varies from 0 to + 9dB of boost
when the Hawkins Bass Control circuit is engaged.
6. Subsonic/Hawkins Bass Control Adjustment - Frequency adjustment control for the
Hawkins Bass Control filter or the Subsonic filter.
7. Low Pass Filter Control Adjustment - Frequency adjustment control for the
Low Pass Filter, 40 - 160Hz.
8. High Pass Filter Control Adjustment - Frequency adjustment control for the
High Pass Filter, 50 - 500Hz or 500 - 5kHz.
9. Input Levels - Input level control variable from 300mV to 5V.
10. RCA Inputs - 1 & 2 channel RCA inputs.
11. BALANCED Signal Input Connector - Channels 1 & 2 ; 6-pin Balanced signal input
connector for use with the Soundstream BLT Balanced Line Transmitter.
12. Line Out - Line level RCA output to drive an external amplifier.
13. Power LED - Indicates amplifier power.
14. Phase Switch - Adjusts the speaker phase to either 0 or 180 degrees.
15. Subsonic/Hawkins Bass Control Switch - Selectable subwoofer enhancement circuit.
Select “SUBSONIC” to engage the Subsonic filter with no boost. Use the knob indicated
by callout #6 to set the frequency: 13- 30Hz. Select “Hawkins Bass Control” to engage the
Subsonic filter with available boost. Use the knob indicated by callout #6 to set the
frequency : 30Hz to 70Hz.
16. ST/MO(2)/LP Switch - “MONO” for bridge mono operation with a single input signal
(Channel 2 only). “SUM” for bridged mono operation summing two input signals (1CH and
2CH). “ST” for normal stereo operation.
17. High Pass X-OVER Switch - (Channels 1 & 2) Select “IN” for use with the internal crossover
or “OUT” for use with external crossover.
18. Frequency Range Selection switch - Switching to “LO” selects the 50-500Hz range.
Switching to “HI” selects the 500-5kHz range.
19. Line Output Switch - Select “1-2 FULL” for full range signal outputs.
Select “1-2 TRACKING LP” for a lowpass signal at the frequency for highpass at #8.
Select “LP SUM 1-2” for a summed signal channels 1-2 (more bass output signal).
20. Channel Balanced / Unbalanced Input Selector Switch - Select “BALANCED” to use
the 6-pin Balanced signal input. Select “UNBALANCED” to use the RCA signal inputs.
21. Input Overload Indicators - Indicates the signal input level or input gain level is too high.
KEY TO CALLOUTS
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