Hi Doug,
I have the SDG-11 and I thought that digital plug was an out. Didn't look too closely because my DAC doesn't support a toslink cable (only coax). Anyway, it sounds pretty darn good for the money. I have been cranking mine and listening to lots of CD's and FM radio. Nothing sounds bad. Unlike other inexpensive players, highs are sweet and not harsh at all.
Please don't get me wrong. I am not telling people this $129 all in one (actually it's a two piece unit with the power supply in the same case as the amp but separated from the source components and preamp) unit will allow you to throw away your Krell, Odyssey, AVA or Bryston gear anytime soon. It just sounds good for the money. I haven't compared it to anythng because my gear is back at AVA getting that cool new power supply installed. I already know its 25 wpc will not drive my speakers as authoritatively as the AVA gear and the bass output is nowhere near the AVA. ALso, highs are not as extended or sweet as the AVA, but it's better than a Denon receiver I tried and a Kenwood receiver that was rated at four times the power as the Sharp.
Anyway, for the money, it's pretty fun. I like the screen that allows you to set seven different colors and the power meters.
J