yamaha m-2 amp c-4 preamp set up

I don't know as much about the sound of the preamp, but to my eye, the M2 and M4 are some of the most beautiful and well made Japanese components from that era.

I have an M2 in my collection which I have not used very often but puts up a surprisingly good fight vs my Levinson 23.5 through my Magneplanars.

Others might want to learn more about your source and cables before trying to diagnose "raspiness".

Good luck.

Cwlondon.
The raspiness occurs with both hd audio cd and rca from my droid phone. I have system biwired with 14 g flat monster cable ... 10 foot runs.

Have you ... or is there such thing as amp tine up?
Thanks.
Pnjcic

That's interesting, I was just gifted the same amp/preamp combination, but I haven't had the opportunity to connect everything up. I'm rolling with anticipation!

As an aside for this series of Yamaha amplifiers, would anyone please know if there is a source to repair / replace the beautifully back lit switches?

I searched forever to find an M2 with working lights, but recently lost the back lighting on the power switch.