Looking for input on an amplifier switch


Greetings! Long time listener, first time caller. 

My current system is comprised of:

Sonus Faber Olympica Nova 5s

Krell FBP 300cx

2 dedicated 20 amp circuits. 

McIntosh C12000 Pre amplifer
Clearaudio Performance DC turntable with a SoundSmith Voice cartridge

PS Audo Perfectwave MKII DAC with a Auralic Aries G2.2 streamer

The more I delve into reference tube gear, the more I find myself drawn to it. I am considering swapping out the Krell FPB300cx (it has been rebuilt by krell and is in mint condition). I find it very nice in the upper detail but lacking in the mids and at lower volumes. Its  very clean but not as engaging as I would like.I have to turn it up to hear the fullness Im looking for.  Im more a full body detail guy and find sibalince frustrating. Therefore, I don’t like Bowers and Wilkins, etc. 

Im considering swapping with a mint set of used Audio Research 250 SE monoblocks. Has anyone made the switch from SS to ARC amps and what was your experience? Does anyone own the ARC 250 monoblocks. How do you like them? 

apuchle

Showing 3 responses by ghdprentice

I recently listened to Sonus Faber Speakers (Lillium) with Burmeister equipment. Absolutely astonishing imaging... literally behind the walls, to the ceiling and great depth behind the speakers. A true sonic spectacular. Of the high end Roland / Wilson camp. I cannot believe anyone would not be blown away by it. On the other hand, not remotely something I want in my house. Not musical and natural sounding. This is why auditioning is so important. You want to get equipment that takes you to the place you want to go. 

@goldenways

Sorry... how about largely artificial. Pass amps are great. I was really happy with them for forty years.

I had Pass designed amps for nearly forty years. Threshold s/500 then Pass X350 with and Audio Research Reference preamp. Sonus Faber Olympica 3... I now have Sonus Faber Amati Traditional.

I had been hesitant to do a tube amp because of the reputation... tube life and biasing. But finally decided to go ahead. My dealer brought over an Audio Research Ref 160s. 

I slid the 175 pound X350 to the side, so I could slide it back in for comparison. When I sat down and listened to the ARC Ref 160, within seconds I knew the Pass was never going back in. There was absolutely no competition. I acknowledged that the brick wall slam had disappeared. But every aspect of the sound quality improved, including the bass. More natural, forceful midrange, natural treble, musical... hugely musical. All the detail was there, but in proportion to how it should be, not unnecessarily highlighted. The bass was so much better, natural sounding, nuanced... not just a big bump... or slam. I instantly realized the slam from the Pass and most other solid state amps is phony. If you go to a concert... say Rock. The heavy bass sound arriving from the stage is what it sounds like on the ARC amp... not like the artificial brick wall (and die) sound wall of solid state. While I liked the slap in the chest... absolutely every aspect of the music got better... not by a little... a lot, overwhelming. So after 40 years of solid state amps, I just had to ask... why the heck didn’t I do this decades ago. I have no excuses. I had heard the ARC amps before... I just don’t know. 

Over the last six years I have also had ARC Ref 160m monoblocks for two of those years. Outstanding. If I could have afforded them, they would have stayed. 

FYI, I used to have an Aurlic Aries G2 streamer. I have heard the G2.2 has much better sound quality than the one I had.