High Performance Subwoofer Plate Amplifier Model: SPA500 User Manual daytonaudio.
Thank you for purchasing the Dayton Audio® SPA500 subwoofer amplifier, one of the most versatile and powerful subwoofer amplifiers available. The SPA500 has the power to drive even the most power-hungry subwoofer systems.
INPUT CONNECTIONS typical music program. As input signal increases to the onset of clipping the LED will turn red, which indicates that the clip limiting circuitry is activated. If an input signal is not detected for 10 to 15 minutes, the amp will go back to “stand by” mode and the LED will change back to green. 1.) Left/Right inputs RCA style jacks that will accept standard line level inputs from a pre-amp level source. They will accept a stereo signal and internally combine it into mono.
NOTES ABOUT HUM: While the SPA500 has been designed to minimize the possibility of hum in the subwoofer system, it is still possible that a hum will occur in rare circumstances. Its safety grounding can create a path for small amounts of 60 Hz energy to travel trough the line-level audio system. While not dangerous, this energy can cause difficulty with the subwoofer auto signal sensing circuit, and at the very least will interfere with the quiet enjoyment of your system.
