I can’t help much other than hearing them on the new Classe Delta series and I thought the combination sounded great with strong bass, clean highs and large soundstage. Pricy amp though.
What Amp with Sonus Faber Olympica 3?
Greetings....Curious to know what amp are you using with the Olympica 3? Seems they need some juice at the 80-120Hz region and dip to 2-ohms so I understand it takes some current to properly drive. Just sold a ARC Ref110 and looking for a replacement. Short list:
Pass Labs 150.8 or 30.8
Audio Research Ref 150/75SE
McIntosh MC275
Primaluna EVO 400
Preamp is a Primaluna EVO 400. Listening room is 16x16 with vaulted ceilings and listening volume level can top out around 90db give or take a few :)
Pass Labs 150.8 or 30.8
Audio Research Ref 150/75SE
McIntosh MC275
Primaluna EVO 400
Preamp is a Primaluna EVO 400. Listening room is 16x16 with vaulted ceilings and listening volume level can top out around 90db give or take a few :)
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Simaudio Celeste :P I think I saw a dealer on Audiogon selling a ARC REF 150 in Silver...but the binding posts and screws looked worn with some rust....hopefully the circuit board is in good shape....maybe you can get a good deal and talk him down? I also heard that the ARC 110 sounds wonderful with the Sinus Favors. Oh nvm...you just sold yours. lol |
Samzx12 “Which Classe Delta?” I believe it is just called the Delta Stereo amp and they were using the matching pre amp. Very nice sounding setup. I think it is $12,000 though. Class A for the first 12 watts. https://www.classeaudio.com/products/delta-stereo/ |
Are you referring to the Olympica 3 or the newer Olympica Nova 3? I have the newer Nova 3 and use the Audio Research Ref 75se. My room is 13x13. I listen at 80 db or less usually. The meter on the amp never goes over 1 watt. I think the newer model is easier to drive and more efficient. Happy listening. Phil |
The discussion may help https://forum.audiogon.com/discussions/upgrade-quandary-ref-75se-vs-ref-150-non-se |
tube amps really don’t like to see impedances 4 ohms and below... arc handles them better than most... if you have sold a ref 110 feeling it was lacking i don’t see how a primaluna or ref75 would do the trick i think solid state power amp is where you need to go... you've got plenty of tube-i-ness in the pre stage as it is... |
@samzx12 don’t think so... 8x kt120 in ref110 vs 4x kt150 in ref75se, through same transformers, even with slightly beefed up power supply https://theartofsound.net/forum/showthread.php?49901-Technical-Differences-Between-KT120-and-KT150-V... kt150 draws 20% more peak current than kt120 via datasheet (see link above), nowhere near double... and that assumes the power supply can deliver it through the 150... so double the number of kt120's will still be 70-80% more powerful in transients -- thus i would expect that the ref110 will push and pull harder, greater grip, greater current, esp. with impedance low @ 2 ohms with difficult phase angles in bass region frequencies of the speaker ... |
@jjss49 thank you for that comparison and I suppose you are correct. The 110 with more tubes had better control but still not enough as also holds true for the Ref 75SE. I have read a couple of Olympica 3 reviews where the reviewer used a Ref 75SE and was very satisfied with the combination however, did not really comment about lack of bass. But we can see the O3 needs current down low and typically tube amps can't solve the low impedance issue. |
@jjss49 I am enjoying the 150.8. It has taken some time to grow on me but my speakers needed some break-in as did the preamp. Things are smoothing out quite nicely. At first I wasn't sure I was going to warm up to the amp however, as usual everything needs to settle for awhile. Changing the front 2 tubes on the EVO 400 preamp to Mullard CV4003 really helped the focus and take some edge off. The stock tubes aren't bad but this is where I was experiencing unwanted energy so to speak. The 150.8 has PLENTY of power and the needle doesn't even move so I am staying in Class A. Lots of depth and layering :) |