Owner manual
The ST-2X
Two channel, compact chassis car amplier with RCA pre-amp input and
speaker level input
ST-2X Input
1
2
3
8
6
5
4
7
1. RCA IN connectors are to connect the ST2X to an aermarket head unit
2. Bass Boost allows 6dB or 12dB boost of bass frequencies
3. Crossover selector determines high pass, low pass, or full range
4. HPF If you use high pass, this control determines frequency 50Hz to 1KHz
5. LPF If you use low pass, this control determines frequency 40Hz to 250Hz
6. HI In is the speaker level input plug.
RCA OUT connects to another amp to
“daisy chain” two ampliers from
a single RCA head unit output.
8. Gain: This control balances output of the head unit to the input of the
amp
Install Notes:
a. HI IN: The Hi In plug has + and - for right and le speaker inputs.
The h wire is “Signal Ground”. For best performance and lowest noise this
wire should be grounded at the chassis of the factory head unit. Invest a lile
me now and you will get beer performance for years..
b. Gain: Gain is not a volume control. It is only to match the head unit
output to the amp input. You should always put this control to minimum
(counter clockwise) during installaon.
7.