Purchase a receiver or what? need your advice.

As a preface for this system description, for all wiring (power cord, interconnect, speaker cable) I use some variation of solid-core OCC copper conductors and everything has Furutech rhodium plated connectors. Even use Furutech GTX/NCF rhodium outlets.
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If I had to describe my acoustic room treatments, I would have to end it with "a partridge in a pair tree", lol.
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I have the B&W 805 D3 for left/right and HTM2 D3 for center. For surrounds, I’m still using some older Focal Cobalt speakers (one of the things on my list for future upgrade, lol). I use an Oppo 103 for transport and it does have an upgraded linear power supply. I also have an external linear power supply that powers both my DirecTV receiver and my Lumagen Radiance video processor - I wrote a thread on "Musings on Switching Power Supplies" that you can read if you want. Everything going to a Sony VW95ES projector (which was the best 1080p project that was produced, in my opinion).
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I used to run all Emotiva XPR-1 monoblocks for my front stage (including subwoofers) and XPA-1L monoblocks for surrounds - all amps fully loaded with Furutech rhodium fuses. Over the summer, I finally upgraded to Parasound JC1 for left/right and an A21 for surrounds. I have been able to remove the warm Parasound sonic signature by a careful combination of Furutech and Hi-Fi- Tuning Supreme fuses. I had originally put in all Futurech fuses, but I found that it was still too warm and my Emotiva amps actually had more resolution and clarity!! wow. Installing 1-3 Hi-Fi Tuning silver fuses increased the resolution of the Parasound amps. The B&W D3 really need an extremely high resolution amp to sing.

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I just installed a Hi-Fi Tuning into the JC1 main fuse on Wednesday and it’s still burning in, but it sounds promising. It’s at that point where the burn-in has a slightly warm/veiled sound - the edge has just a very slight bit of dull on it, but it should open up within a week. On my Focal surrounds, I found I had to pull the silver fuse and go back to all Furutech because of that Focal titanium dome tweeter breaking up and the speed of the Focal woofer just didn’t give enough body. I know this speaker is a problem, but it’s on the list someday.
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I still have Emotiva XPR-1 for center and subwoofers (two subs that have a 12" driver in a huge vented cabinet that I built - about the size of an huge SVS subwoofer and weighs about 200lbs). I have a final JC1 on the way to replace the center channel. I will then take that "free" XPR-1 and re-cap it to use as a final subwoofer amp. This is actually the best amp I have ever heard for subwoofer duty - extreme amounts of current and power and full linear power supply - 1800 watts at 4 ohm, I cannot actually use more than 60% of this amp or the subwoofer drivers will peak out!! lol.

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I tried a set of Bryston 7b3 monoblocks in my system and found that they just did not work well. The Bryston was just about the highest resolution amp, but it’s so close to Class B (an extremely low bias Class AB) that it’s just too fast with no decay - the sound was there and gone before I could really hear it and it had no body - It actually could not even keep up with my Emotiva amps in body and volume. I think the Bryston would work well with a very warm preamp and lot’s of gold-plated connectors on wiring. This helped me because the Bryston 28b was one of the amps I was considering instead of re-capping one of my XPR-1 amps.

@auxinput

Nice setup! 

Just wondering why don’t you use a Parasound Halo A31 three-channel amp to power your center and surround speakers? It’s a great amp. Runs hot though as all other Halo amps such as your JC-1 monoblocks.

In regards to Bryston amps, did you get to listen to their newest amps? They have been improved over their older amps. The newer ones sound quite a bit better actually. Nothing like the older amps.

By the way, my buddy considers selling his Classe Delta CAM 600 monoblock amps. These are class AB amps. The CAM 600 monoblock amps are Classe’s top of the line amplifier within the Delta series class AB lineup. Don’t know if you might be interested in potentially purchasing them for your front B&W 805 D3. Not sure how much he’s going to sell them for. These CAM 600 monoblocks original retail price was $14k per pair and this model along with the other Delta series products have been discontinued last year.
I can ask him about the potential resale price value if he is really going to sell them for sure. I would imagine maybe around 7k to 8k or even way less since this model was discontinued last year. He got them brand new in 2014 and has all original accessories boxes, user manual, etc. He’s using these CAM 600 monoblocks to drive his B&W 800 D3. They sounded wonderful together. They have great synergy together. B&W 800 series D3 were voiced and tuned using Classe Delta series class AB amplifiers and electronics whereas the lower end B&W series eg 700 S2 & 600 series S2 were voiced and tuned using Rotel amplifications and electronics.

I’m sure these Classe CAM 600 monoblock amps will sound fantastic on your B&W 805 D3 as they were voiced together. I’m also using these same CAM 600 monoblocks to drive my front B&W 800 D3 speakers in my dedicated home theater room and they performed wonderful together. By the way, have you ever considered getting floorstanders for your front speakers?

He’s thinking to change speakers and switch to all tube gears. Now he’s already using a Lamm tube linestage preamp to pair with his Classe CAM 600 amps. He considers trading in his B&W 800 D3 for Sonus Faber but not sure which model possibly Homage. He’s thinking to get all tube gears (preamp & power amp) to pair with his potential future Sonus Faber down the road.

Do you plan on getting a 4K UHD bluray player such as the Oppo 203/205 and upgrade to a 4K display? Cause the availability of 4K UHD discs are increasing each day. In my dedicated home theater room I have an Oppo 205 with modded linear power supply for digital audio & video circuitry. It’s used only for bluray & 4K UHD disc playbacks via HDMI outs to my new Lyngdorf MP-50 processor.

Let me know if you might be interested in possibly purchasing my buddy’s Classe Delta CAM 600 monoblock class AB amps. I will ask him and find out how much he’s willing to sell his amps for and see if he’s really serious about selling them and switching to tube amps. He hasn’t listed his amps yet.

The JC1 has a better input stage and I wanted full monoblock for my front stage (including center channel).  The A23 is fine for surround, but the center channel is the most important.
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I actually got a pair of Bryston 7b3 monoblocks after I determined the Parasound was too slow/warm.  The Bryston went way too far into the resolution/speed.  It's about the highest resolution amp I've heard, but it responds so fast that the sound is there and gone before you can really hear it.  It was not a match in my system and I did not want to "try to make it work" through stuff like gold-plated interconnect and cables.  It actually could not keep up with my Emotiva in body and volume! 

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The Classe amplifiers were on my list, but a couple things put them down further on priority.  One was silver color (though I could try to get CT models that had a black front).  The other was the fan - I did not want to deal with a fan after years of usage.  I will keep them in mind, though, and let you know if I decide to try another amp.  My Parasound JC1 are fully loaded with all silver fuses now and I think that will get me to where I want.
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My 1080p sony VW95ES projector is so good that I do not actually feel any need to upgrade to 4K at this time.  It would be a minimum $14k investment to do that, since it would be at least $10k for a decent 4K projector and another $3.5k for Lumagen video processor.  This doesn't include any expense for Oppo or other 4K bluray - and I would have to look at my processor, which does not support 4K. lol.  If I were to do this type of thing in the future, I would probably get the latest MArantz (i.e. AV8805) and then start pulling the guts out and rebuilding - putting in faster op amps on digital I/V board and upgrading all caps to something like Nichicon KZ, etc.

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I have thought about full range towers for my left/right, but I would first have to build new subs (which is an idea on the list).  My subs are just about the same exact size of a SVS PB16-Ultra (massively huge) and towers would not really work for optimum positioning in my room.  My current subs are about 28" deep and  I would have to build taller and shallower subs so that I could place the towers in front of them and still keep the proper position and room acoustics. lol. 

Regarding the 4K thing, I have had people come over and see my projector and their comment is "that's 1080p?!?! Really???".  The image actually looks so good, it's pretty much just like film.  I'm sure that a good Sony 4K projector will be better than what I have, but it is also based on source content.

@auxinput

Wow! Your subs are massive 28" deep. What drivers are you using for your subs? I’m also using 2 subs in my dedicated theater room.
Are you also using subs when listening to stereo music?

Sony makes one of the best movie projector only bested by Runco.
When you go 4K route you should get the Oppo 203/205 in used markets but I suggest you wait a little longer cause it isn’t worth paying for the Oppo 205/203 for 3 times their original MSRP. That’s how much they are charging them for these days in after market ever since Oppo ceased productions and operations. Those people are just trying to take advantage or trying to rip people off.
Lucky me I have purchased the Oppo 205 late last year and only paid its original retail price of $1300.

I’ve heard that the new flagship Pioneer Elite 4K UHD bluray player is coming soon to North American market but I think they are going to retail for around $2500. Not sure. But heard rumors that the build quality and audio and video performances will be on par with the Oppo 205 or perhaps even better, dunno. I think they were already launched in Japan/Asia and Europe. Can’t remember the model.
Few people also told me that the somewhat new Sony ES 4K UHD bluray player (1000ES) is very good also and its audio & video qualities over HDMI are probably on par with the Oppo 203/205 but the Oppo 205 has superior DAC, analong audio stages & power supply.

As for a new pre pro that supports 4K and stuff, you can always run the audio only HDMI out from a 4K bluray player to your current pre pro and the video only HDMI out directly to a 4K display or a 4K Lumagen video processor. And if you have a 4K capable cable tv box or some sort down the road in the near future you can run the HDMI directly to a 4K display or a 4K Lumagen video processor for video only and run spdif or Toslink out to your current pre pro for audio only. I think you can keep your current Krell pre pro and no need to get a 4K capable processor.

But if you must get a new 4K capable processor the latest version of Krell Foundation series supports 4K but not sure if it supports the latest HDR and Dolby Vision and hdcp 2.2 necessary from a 4K UHD bluray player. I think the new Marantz AV8805 supports the very latest formats. The Lyngdorf MP-50 and the new latest NAD M17 v2 processors also support the latest formats. Even the Anthem AVM60 does not support Dolby Vision and latest HDR. So far I think the new Marantz AV8805, NAD M17 v2 & the Lyngdorf MP-50 are the only processors currently available on the market that support the very latest formats on the video side. The revised or latest version of Classe Sigma SSP Mk2 supports 4K, hdcp 2.2 but does not support HDR nor Dolby Vision. I think the new Bryston SP4 supports the latest formats too.

Not even sure if the Classe Sigma SSP Mk2 are still in production especially there are uncertainty with the brand after it was sold to Sound United early this year. Not sure if the Sigma series are still in production.

Many hifi reviewers claimed that the Krell Foundation, the Classe Sigma SSP and the NAD M17 are superior sounding to the Marantz AV8802 but don’t know how they would compare to the new AV8805. Last year I have personally compared my previous Classe SSP 800, Classe Sigma SSP & the Marantz AV8802 in my own home theater setup. For surround sound movies (home theater) via their HDMI inputs, the SSP 800 is the best, followed by the Sigma SSP and the Marantz AV8802. But when used as an analog stereo preamp for music playbacks in bypass mode, the Sigma SSP is number one, followed by the SSP 800 and then lastly the Marantz AV8802. But the difference between the Sigma SSP and the SSP 800 was subtle, they are pretty much on par. I found the Marantz 8802 to be lacking when used as an analog stereo preamp for listening to music in bypass mode.
Then lastly when I compared these 3 processors as stereo digital preamps for stereo music playbacks, the Sigma SSP, fed via its rear USB input, by far way outperformed the other two processors, then followed by the SSP 800, fed via its spdif, then lastly the Marantz 8802, fed via its USB & spdif. The SSP 800 does not have USB inputs. Its rear USB port is only for loading firmwares.
So the Sigma SSP is a king when used for stereo digital music playbacks fed via its USB input in comparison to the other 2 processors. The SSP 800 was pretty good too when fed via its spdif and even HDMI inputs for stereo music playbacks or when used as a digital stereo preamp. The Marantz 8802 could not quite compare to both Classe processors in this area. The DACs in both Classe are also superior to the Marantz 8802.
But when used for surround movies (via HDMI) the Marantz was very good especially for the money since its original MSRP was the cheapest compared to both Classe’s original MSRP. I could probably easily live with the Marantz 8802 when used strictly for home theater (surround movies) and it isn’t far behind than the Sigma SSP.

I have also also listened to the NAD M17 briefly at my local dealer in an unfamiliar setup so had no idea how the NAD M17 would compare to those 3 processors. But the M17 was very good.
I have not tried the Krell Foundation series processor but it was highly praised by some hifi reviewers.

In regards to the Classe Delta series amplifiers I really like the styling and color actually. I hate the CT series styling I think they are the ugliest amplifier I’ve ever seen.
But regarding the fan, they are pretty silent and almost inaudible depending on how far back you sit from the amplifiers and how big your room is. But the filter needs to be cleaned every once in a while. There’s a detector where the light flashes on it means that it tells you that it’s time to get it cleaned up.

If you like black or darker color amplifiers, Classe is probably going to finally launch the new replacements for the Delta series gears that were supposed to be launched summer of 2017 but since B&W Group decided to shut down Classe’s main facility in Montreal last fall so these new Delta series gears weren’t moving forward with productions. But I’ve heard a rumor earlier this year that Classe now under Sound United are going to launch these new Delta series products maybe next year. I have heard the pre-production run of these new Delta series gears at last year’s Music Matters at my local dealer. They consisted of a new Delta Pre stereo preamp/DAC to replace the recently discontinued CP 800 stereo preamp/DAC and the new Delta Mono monoblock amps run in class A mode at least for the first 50 watts or so and the remaining in class AB. They were very dark charcoal colors. They look different from the existing Delta series gears. They drove the B&W 800 D3 at the time and I found them to be better than the existing or recently discontinued Delta series combos, which are already pretty amazing epecially the CAM 600 monoblock amps. The new ones were better maybe due to class A operation. The expected retail price of the new Delta Pre stereo preamp/DAC was around $10k ish. And the expected retail price of the new Delta Mono monoblock amps was somewhere around $20k to $30k per pair. In comparison to the existing or recently discontinued Delta series combos the new Delta series gears sounded more liquid and fluid more refined and yet maintain high resolution, details, transparency. Overall they sounded more musical than the recently discontinued Delta series gears. They had better rhythmic drive and subtle dynamic shifts better midrange bloom and better body textures and volume than the existing Delta series combos. They sounded more natural and organic to me on those B&W 800 D3. They sounded spectacular together.