You could build a multichannel integrated amp, but if we're staying purist here we're talking about something with no DSP and no DAC's - so each input has to be a multichannel analog connection, and each source has to offer multichannel analog outputs. There was a device that offered multiple multichannel analog inputs and I think even had a volume control for at least one or two of those inputs - it was the Sony TA-E9000ES, and was developed as an add-on to the TA-P9000ES so that it could be used with multichannel SACD. You'd still need separate amplification and Sony discontinued it probably four years ago or more.



The possibly unfortunate truth is that it is only cost effective to build products that either fit defined market sectors (surround receiver, surround processor, stereo receiver, stereo integrated amp, ...) or are completely outside any such definitions (Outlaw's discontinued ICBM-1) because if you try to create something that is related to a standard product niche while also being off on a tangent (especially an expensive tangent) you end up with too small a target market to make any profit. The only way that anybody (including Outlaw) could pull a product like this off would be to have an existing platform with all of these features plus the normal features that the market expects (tuner, analog inputs, and so forth) and then make a version that stripped the extra stuff out - and it'd still be a hard sell.