Postby xtrail » November 13th, 2007, 6:43 am
anyone know where to get one of these cds to set the gains on jl audio amps
"All you need is Digital AC Voltmeter (142TK12V, sold separately) and a Test CD Disc (503CD104, sold separately) with a sine-wave test-tone recorded at 0 dB reference level in the frequency range to be amplified for that set of channels (50 Hz for subwoofer channels)."