First World Problem in need of Solution

atownkeep,

My Jeff Rowland 625 S2 amp drives my Monitor Audio PL500 II front speakers. My ATI AT523NC 3-channel amp drives my center and rears. I'm not doing "critical listening", so when I watch television or a movie I don't notice a significant difference. When I'm listening to music(2-channel) my ATI amp and AV preamp are turned off.

@ricred - I think those amps are relatively close in sonic signature.  They are not extremely warm and not extremely fast, but both pretty neutral.  If you had a radical mismatch, I think you would notice more differences.
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@atownkeep - I hear you.  I don't think trying to get a AVR Receiver or Integrated would really be the answer here, as they all have definite differences.  I think it's much better to look for a set of amplifiers that would closely match your Luxman amps.  Then the choice of HT Premp/Processor is not that critical, since all channels would be somewhat matching.  Since HT movies really need excitement, I would probably recommend a very high resolution HT Processor for your scenario.  The warm Luxman/other amps would sound too dull with a warm HT Processor such as Marantz or Bryston SP3 (yes, the SP3 is really laid back).  I am totally not a fan of room correction, although many other people are.  Both the Krell Foundation 4K and Anthem (either D2v 3D or AVM60) have their own auto-eq and room correction.  They are both high resolution processors and support 4K.  The Classe Sigma SSP Mk II is also a good high resolution 4K processor, but it does not have auto eq or room correctoin.

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That is kind of why I put forth the idea of getting a Parasound amp - it is on the warmish side, but still has good slam.  The A31 is probably a great price for a solution ($3200 retail).  Other amps could be like Aragon (they have both a Iridium monoblock a 8008 stereo).  Or something like a B&K, but they are very old.  I'm sure there are other warmish sounding amps.  You could try posting that question in the "Preamp/Amp" thread as "recommend an amplifier that sounds very close to Luxman 900u and offers both a monoblock and stereo amp".  The list of manufacturers that would offer a 3-channel which also has that warm sound is very small.

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Maybe an idea would be to pick/buy your HT Processor and then try a Parasound A31 amp from Audio Advisor.  They do have a 30-day return policy, so if it's not close enough sounding, you can return it.

I use a simple XLR switch (DIY with high quality parts) to toggle between my 2ch tube gear to LR speakers, and use a classe CT800 processor, which by the way does digital music fantastically. I have an Oppo 205, that has 2 HDMI outs, one for audio (so I am not a slave to HDMI changes) and the other 4k direct to screen. Unless I want Atmos etc, I have no need to change.

Sorry, nekoaudio, but I disagree here. A large power supply in the amp is very important, yes, but the sonic signature and how it reacts to signal/load is another important factor.

@auxinput Apologies for being unclear.

I was only trying to say not to shortchange how much power and drive capability you'd want from the other speakers that are only in use during home theater playback.

My comment about ignoring the sound quality for the purpose of that paragraph was meant to focus what I was trying to convey on that aspect. Of course there are many other factors in play that are still important to consider including sound character, size, aesthetics, system synergy, etc.

I only intended the Bryston to be an example.