Audio Research DSPre

[tane0019]

Originally Posted by microstrip

Perhaps it is not the case, but my ARC REF40 is sensitive to the power transients created by some other high power equipment being powered on after the preamplifier was switched on. I solved the problem powering the power equipment from another power circuit, or simply just switching the power amplifiers on before the preamplifier.

Wow, to switch the power amp on then the pre-amp. Not the correct steps for powering on. But will try the change the another power circuit & try it out. THKS.

[tane0019]

Originally Posted by 2fastdriving

Do you have a local dealer? I'd have my dealer calling ARC.

The problem that I have - not repeatable when bring down to the local dealer.
To them, the unit is no problem.

Recently I understand why:-
When even I face the problems (either no sound come out from HT bypass or DAC inputs), by powering down & power out again will not solve the problem.
Need to take out the power cord completely from the unit inlet socket for about 60-90 secs and plug in again to power on. This seem to reset the unit and it work perfectly again until the next time the problem start again & the whole process has to re-do