Hi, The matching between the TP output and the amp input is really important. The relation is the following:
Pmax = Umax * Umax /R The specs rate the full power of the amp Pmax = 250 W @ Umax = 33 Vrms = 1.6*20 Vrms By driving the amp directly from the TP (without analogue attenuation), you'll have to apply digital volume attenuation to avoid providing higher voltage than 1.6 Vrms If you add -10db analogue attenuation (by changing the internal jumper settings), you limit the output voltage to 0.6 Vrms. You'll therefore provide a maximum of 0.6*20 = 12 Vrms (instead of 33 Vrms) which will limit your maximal output power to 35 W. If this is not powerfull enough, you may prefer external attenuators of -6db (=> 100 W) in order to get a better match. I hope this was clear. The shortest audio path is better and adding a pre-amp will just be worst as you'll add additional gain. Good luck Ligald -- ligald Transporter (wired) PC with XP Pro SP3 1GB RAM ------------------------------------------------------------------------ ligald's Profile: http://forums.slimdevices.com/member.php?userid=12437 View this thread: http://forums.slimdevices.com/showthread.php?t=61156 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
