User manual BOSS SBP-10AMP SBP-12AMP

[. . . ] GAIN Control: Use this control to adjust the relative volume (loudness) of SBP10AMP / SBP12AMP with respect to the other speakers in the vehicle. CROSSOVER: Use this control to adjust the amount of high-frequency information present in SBP10AMP / SBP12AMP's output. [. . . ] see your authorized BOSS car audio dealer. LED remains on after head unit is turned off. CAUSE and SOLUTION: For speaker-level connections, this is normal operation. SBP10AMP / SBP12AMP will remain on another 5 to 10 minutes after sensing that audio signals are not present before shutting down. 1 TUNING SBP10AMP / SBP12AMP POWER CONNECTIONS Connect power to SBP10AMP / SBP12AMP, as shown in Figure 1. Also observe these installation tips: Use at least #10 AWG wire for the +BATT (+12Vdc) and GND (ground) connections. lf needed, use at least a #20 AWG wire for the REM (remote) connection. Route all power wires through a grommet in the vehicle's firewall. Connect a short GND wire from SBP10AMP / SBP12AMP to the nearest bare metal surface. For a good connection, scrape away paint from the metal surface and use a screw with a lock (star) washer. Install a fuse holder with a 15A fuse within 18" of the battery's positive (+) terminal (see Figure 1). The REM connection requires +5 to +12 Vdc signal to turn on SBP10AMP / SBP12AMP. [. . . ] Switch the PHASE control to 180 and listen again for upper bass content. The position that provides the most upper bass is correct, but choose either setting according to your taste. [. . . ]