Replacing my Krell FPB 600 amp with a tube amp

Georgehifi
can you get more spread between the speakers, they are very close,

George - the Matrix 800 are a very unique design. They can be set up widely spaced apart and angled in, or close together and shooting straight down the room. Good results are achieved either way.
From the owners manual. (1.5 m or 60 inches) apart will work well.

https://photos.app.goo.gl/9rOuWdINRdBh9ED13

Abbey Road’s placement of the Matrix 800.

https://photos.app.goo.gl/3hL46MQw2ilbHPRf1

There was mention of adding subs on this thread.

The Matrix 800 are a full range - All Out Assault design. A one time effort. They are like having 4 subs in the room - two high - two low. Each cancelling out the others waves; no standing waves. This was evidenced/shown through the Stereophile review (reviewers room) that was linked here. His room was small and the speakers disappeared. The woofer effect is easily tested by disconnecting one set of woofers.

Re: Krell Amp (this thread)

Dan designed his Krell amps around this speaker - I talked with him years ago. He had Matrix 800 in his personal space. B&W and Krell were in partnership - until Dan/Krell came out with their own speaker. This relationship is a big reason behind why Krell is an excellent match with Matrix B&W, and the reason that Dan/Krell came out with their own Krell designed B&W Bass Alignment Filter.

From the Stereophile link that Almarg posted earlier in this thread, there is one Figure 8, that shows the BAF performance with the stock factory BAF. I can tell you the Krell version betters the stock BAF. Would have liked to see those Krell B&W BAF measurements from Stereophile, but the Krell BAF was not available at the time of the review.

VTL 450MKIII 

Although I have never heard a B&W speaker that I didn't find very sterile except the old 801's. I owned the 700C for quite a while and it is a great amp. It's very smooth and powerful with ability to handle any speaker with aplomb. I ended up selling it because someone offered me an amount hard to refuse.

What specifically is it you are looking for in a tube amp that you feel the FPB 600 fails to provide?

Are there elements in the FPB 600‘s repertoire that tube amps fail to emulate that you would find difficult to live without? Ones you may have grown used to without realising?

pesky_wabbit ....Actually i LOVE my Krell FPB 600. I actually feel like it supplies everything i could possible want in a solid state amp and more. I just thought if i am missing something with a tube amp that has that much power and some warmth that tubes provide. I just bought a brand new Ref 6 ARC preamp and besides the ARC Ref 5 se that i only had about 2 or 3 weeks before i demoed the ARC Ref 6 which i found it to be a night and day difference bet the 5 se. This was the first time i ever had a tube preamp. So with that said that is why i was thinking about a tube amp. Another words i would never go back to a solid state preamp. The only thing i could possibly see myself buying to replace the Krell FPB 600 is the ARC Ref 750 or the 750 se amp. for its power. Also my Krell FPB 600 sounds like a match match made in heaven with my B&W 800 Matrix. But always wondered what a powerful tune amp would sound like with my B&W 800s.