Originally Posted by filmnut
I'm experimenting with using the 103 as a preamp, connected directly to a multichannel power amp via analog outs. Yes, I know it's not designed to be used that way. The only "amp" I've tried so far is a vintage Marantz stereo receiver, with the Oppo's FL/FR analog outs connected to the "main in" of the Marantz. With the Oppo's volume control at 100%, the volume through the Marantz was just barely loud enough. The "main in" goes straight to the power amp section, so there's no volume control on the receiver in this configuration.
I'm contemplating using a pair of Adcom stereo power amps to power my 4.0 setup (actually 4.1 but my subs are powered and can be fed from the Oppo's sub output directly). The power amps have an input sensitivity of 0.97V. I don't have the amps available yet to test this out.
While my AVR was out for repair, I used a 200-wpc Carver m1.0t solid state amp to power my front L&R speakers, with the 103 as a preamp. It was an audible downgrade--the best word I could use to describe it was "coarse." I won't blame this on the amp, it doesn't sound that way when my AVR or a Carver C-1 functions as the preamp with the Carver amplifier.
AT&T U-Verse Northeast Ohio
Denon x4000, Carver m1.0t, Samsung LED TV, B&W 704 mains, two M&K subwoofers, Oppo 103, Roku 2, etc.
Headphone system: Sennheiser HD600, AKG K702, Hifiman HE-400i, Marantz HD-DAC1 (also used for music playback in the main system, Marantz CD5004, Denon DVD-3910