Best multi channel amp and processor good for 2 channel listening.

The Bryston Cubed "B3" series is a very fast amp.  Don't get me wrong, It is very high resolution and an excellent performer, but it will sound bright and lean on the bass/midbass if you pair it with a very fast preamp/processor, such as the Anthem.  The Bryston SP3 processor has their fully discrete Class A analog stages and it is very warm and full - I have tested this processor.  It was just too warm/full/slow for my system, but it may work great with the ultra-fast 9B3 amp.  The SP4 processor is just overkill and I don't think you are looking for a 16 channel Dolby Atmos solution.   The new SP4 processor is basically the Storm Audio processor with a "Bryston" faceplate and software.  I don't know if they even have the "Bryston" discrete Class A analog stages developed for this yet.  I think I read that Bryston would upgrade them for free if you bough the processor now.  Timing could be in the next 6 months or so.  Oh, another thing, the new SP4 internal DAC will do everything at 48khz, so the hi-res audio such as 24/96 or 24/192 will automatically be down-converted to 24/48.    This is not a problem with the previous SP3 processor (which is still available as a current product).  The digital architecture between SP3 and SP4 are completely different.

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Other processors that would mate well with the 9B3 amp are Marantz AV8805.  This is a very excellent processor.  It has a very large power supply and it also has a lot of bass/midbass power and slam/excitement.  It is voiced warm, so the high frequencies are slightly rolled off, but it would be an excellent pairing with the 9B3 amp, especially since you are looking for a "warm' type signature.  Another possibility is a McIntosh processor (such as MX122 or MX160).  The SP3 does not have the "rolled off highs" that the Marantz does, but it is a slower responding sound then the Maratnz, so it might still be a good mate with 9B3 amp.  Be aware that the Marantz and/or McIntosh processors will likely also be limited to 48Khz on the internal DAC/DSP, even though you are sending higher sampling rates to the device.

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Just for comparison, the Krell S1000 and S-1500 combination is NOT a warm sounding system.  The Krell devices are very high resolution and fast responding.  They will come across somewhat bright/thin sounding at time, especially since the power supply in their processors are undersized (in my testing and opinion).

I have tested several amps, one of them being Bryston 7B3 monoblocks.  They are very nice amps, but they are definitely faster and brighter/thinner then some other amps.  They are also just about as close to "Class B" amps as you can get.  The Bryston amps are very efficient and do not really get hot at all. 

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The fast amps vs. warm/slow amps really has to do with how the input stage and output power stage are biased.  Some are biased heavily into Class A and these will generally be warmer sounding and fuller sounding.  They will also get hot in temperature more so than the more efficient Class AB amps.
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older B&W speakers are described as very bright sounding because they had two issues:  1. metal dome tweeter that caused resonance/breakup and , 2. woven kevlar midrange that had breakup as well.  These "breakup" modes caused the sound to be on the bright/harsh side.  The later diamond tweeters are not bright at all, and the newest D3 series resolved the issue with kevlar breakup modes.

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I do not have any experience with the Aracam processor.  It may be a good choice, but I tend to lean towards processors that have a fully discrete analog section.  These include the Marantz AV880x processors, the Bryston SP3, Krell S1200U.  I have even tested Theta Casablanca, but I did not feel that it sounded that good.   The Bryston SP3 was very warm and laid back sound, but it had just about the best and strongest bass I have heard out of a processor.  I think the "laid back" sound would mate well with the fast responding Bryston amps. 


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The McIntosh amplifiers and electronics can sometimes be too laid back and soft.  They often come across as boring and dull to my ears.  Sometimes they are okay, but leave me wanting more.  I heard a McIntosh integrated paired with the new Sonus Faber bookshelf speakers and the sound was very excellent.  But it just did not have that excitement that I was looking for.

I assumed you would use the Luxman integrated as part of a "hybrid" system.  This means that you setup a normal HT processor and connect the left/right output to a left/right "theater bypass" input on the Luxman integrated.  Alternatively, if the Luxman does not have a bypass mode, you can use any input and then have to set the volume to 100%.

the Luxman is voiced on the warm side, so if you wanted to pair an HT amp with that, I would go for the Parasound A31 3-channel.  The Bryston is going to be too bright/thin in comparison to the Luxman.

THD, IMD, noise floor are all technical measurements that help engineer a good product.  However, all electronics will sound different and after 20 years of listening, I really don't pay attention to these measurements.  I have tested Bryston 7B3, Parasound JC1, Classe CT-M300, and all sorts of Emotiva amps in my system.  All sound radically different and everyone has a different tastes on what they want.

Pretty much all amps will measure flat and accurate.  However, I stopped focusing on "measurements" a long time ago.  Some measurements will help, but they will never tell you how an amp sounds.  Much of how an amp sounds is how the input stage and output stage circuits are put together as well as how the amp is biased (Class A, Class AB, Class B).  Also, how the Class A bias is engineered to initially slew.  High bias Class A amps and warmer amps will start slewing gradually and then rise up with their normal "slew rate".  These amps will sound more full and have more overall volume, but they will tend to have slightly rolled off high frequency resolution.  On the other hand, lightning fast amps, such as Bryston, will have excellent high resolution response, but the bass/midbass/midrange may be light.  That is because the slew is so fast, that it is not letting the amp continue to translate the DAC square step waveforms into true analog waveforms.  It's all relative, though, and system synergy has a lot to do with it.  That's why I thought that pairing the somewhat laid back Class A Bryston SP3 processor/preamp with the very fast Bryston B3 amps would be a good match.  They would compensate for eachother's sonic signature.