Amps for Sonus Faber Stradivari Homage


I have a pair of Stradivaris that I love, but I´m having a little trouble finding the right amps for them. My system consists of: Emmlabs CDSA SE latest version, Clearaudio Champion Level two/ SME V/ Benz Ruby, ARC REF3, MSB 202 monos.
I have driven the speakers with a set of Pass XA 100.5 before, but they sounded compresed quite quickly. The MSB´s offer more power than the 100.5´s and sound more detailed and airy, but also leaner and brighter.
I love detail and air, but I also crawe bass slam and body in the midths and highs. I absolutly hate lean and bright sound, no matter how detailed it might bee.
I have owned quite a lot of Krell gear in the past. I liked the bass of the ols stuf like the KSA s series + the first FPB stuff. The rest of the frequency range however, sounded rough and "solid state" to me. I liked the detail of the MCX 450´s, but they sounded to lean in the low frequences to me. I have tried tube amps as well, but I have not yet found a pair that did´nt sound like tubes in the bass region
So I am dreaming of a set of amps that delivers a full bodied, warm but detailed sound with bass slam and bass detail as well.
Any recomendations ?
NB: English is not my native language, so I hope for your understanding if my spelling is off !
0461
Hi 0461,

Good luck with that. i have never heard Macs with Strads before, but i totally agree there are many satisfied owners of such combinations. Further, if you read the Roy Gregory review(i think it was him...i have read them all before buying the strads years ago), and you also look at many of the Strad-based systems out there...you will also note that many of them use Nordost Valhalla cabling somewhere in teh system. Roy Greogry i think mentioned that rather than go with a heavy SS amp (which he did not find synergistic at all)...he preferred to "liven up" the Strads thru cabling instead. I think he had Nordost Valhalla. I myself used Transparent Reference...but found profound improvements using Nordost Thor power conditioner for my entire front-end (and it is wired with Valhalla).

Good luck and pls continue to post.
Some feedback !

I haven´t been able to locate a set of JA 200´s at a reasonable price, but I have a set of Mc Intosh Mc 501 on hand, and I think I will give them a go. Low detail lewel or not... After doing a lot of surfing, it seems clear that quite a few Stradivari owners prefer the "dark" Mc Intosh sound paired with the strads..
Jadis is a good idea, can can listen to them naked...pure tone will touch your skin :-) another excellent sounding amps are the old Jeff Rowland Model 8 and 9
Hi 0461.

I owned STrads for a number of years, but i have not heard them with Jadis...however, i have heard the Strads with a number of different tube amps (2 CJs, ARC Ref, Pathos, Unico) and have not been disappointed once. Based on my experience, I would definitely be prepared to bet it is a remarkably good sound in the areas where the Strad is strong - voices, spaces, life, musicality. I do not know the Jadis and their ability to control bass...despite the bass on Strad being very good, it responds extremely well to high current to control its drivers.

Good luck and please report if you hear them. even though i no longer own the Strads, i would be curious to know about how well they pair with Jadis.
I'll second the McIntosh recommendation, either 501s or 2301s. Wonderfully listenable and can really jam when called to do so. Burrmester 911s in monoblock configuration also do very well.
0461, sorry for jumping in a bit late, but I'd like to mention a great amp pairing I
heard with SF Amati Anniversario. I am very aware that Stradivari is another
beast, but perhaps you want to find out whether it works with this speaker as
well. I have always liked the Amati (Hommage as well as Anniversario) but
perhaps it sounded just a mite too "soft" (for lack of a better
description). Well, that was before I heard it with the Electrocompaniet Nemo
monos. These amps can pump raw power into the room and yet remain utterly
musical. Contradiction? It certainly worked out with Amati, I had never heard
them so authoritative and in control before.

Oh, and as to CDP (no SACD!), give the AMR CD-77 a try, one of the most natural
sounding I know for sure.

Good luck!
Living with my second pair of Strads and in my ears
the McIntosh MC-602 or the MC-501 fits very very good.
One more thing...i also have auditioned the Emm. i agree with you. very studio sounding...not bad at all...just different than what i personally was looking for.

Can you get Cary? I have heard their 306 Professional SACD player is great. Metronome is crazy-good!!!!! there is one for USD 19,000 on AGon...stunningly analogue sounding. You may "never" trade up? (If you do, also buy the isolation platform that sits underneath...i am not kidding. it takes a very, very solid player with a tiny, tiny bit of inconsistent frequency range to probably the most analogue sounding i have heard.)

Finally, if you are concerned about resale...i personally am concerned about the Transports. i do not know where CD sales will be in 5 years...but i suspect it will continue to drop until they stop altogether. DACs will have use, but transports that only do Redbook may have less attractive re-sale value.

hence, why i went with Zanden DAC...only 16/44 technology but so analogue i do not care. i will probably create a music server...save everythin in high-bit rates and downsize the files into my DAC...until i find a DAC that i like better which also does higher-resolution.
0461,

Merry Christmas. One person's opinion...i agree on the Evo. I think the Evo series is fantastic with the middle Cremona range of SF speakers...fantastic. but for some reason, the Homage series seems to respond better to tubes. The Strads however really benefit from power. Can you find CJ? Look at Downunder...he found a pair of CJ Premier 8s (i am sure at much lower price than new since they are so old)...and then he had them completely upgraded with Teflon capacitors by CJ directly. It did not cost that much...well within your price range if you are looking at ARC Ref 210s.

I have heard the 210s...you will find them to be great speakers, and i know a system that used them with ref 3 to great effect...but i suspect you might be looking for greater "bass snap" and more piston-like precision. I think you might find this is in the CJ Premier 8s with the Teflon upgrade.

I have spoken with Ed at CJ myself about doing this...personally, i have complete confidence in CJs service, and Downunder actually did it! we spoke before he sent them and compared notes.

I have not heard Pass...but if it is in the same line as Gryphon (SS, Class A), you might well prefer it.

The other thing to consider is using a different cable loom to "adjust". I have never liked Nordost cable...but the STrads loved the Nordost Thor power conditioner with uses Nordost Valhalla inside, and the vast majority of owners of STrads on AGon use Valhalla too. that also will deliver greater bass punch if you end up with the ARC 210.

As for CD, i think the CD7 is good but not as amazing as others have clearly found it. I bought used Zanden DAC, and despite some mixed reviews, i also thought quite highly of the older DCS Elgar Plus...very resolved, but also quite smooth and realistic. I prefer Zanden personally, but you can get DCS Elgar plus quite affordably these days.

Prefer CD7 to Krell 505 but you might disagree...and its a big name. i can certainly see why some might buy it.

hope that helps...keep us posted!!!
Hi guys,

Thank you for your responses to my predicament. I have tried Krell EVO 400 and They did not do it for me. They sounded way to analytical to my taste. I think I have narowed it down to either a set of Pass XA 160.5, 200.5 or a set of ARC REF 210. My only worry with the Ref 210´s is if it too will sound "tuby" in the low end. I would love to try one of the more exotic amps mentioned in this tread, but in Denmark were I live, it is very hard to re-sell anything else than the mayor brands. And I am deffenetly one of those hifi neards that likes to change stuff quite often.
A fotnote: The Emm Labs is sent in for repair, and thus I can only listen to vinyl right now ( I dont do that to often ), and via my vnyl rig, I find many of my "complaints" to have disapered. So I am thinking I shuld mabey consider changing the Emm instead!! Anybody has any sugestions with regards to a musicaly sounding cd/ sacd ? I have had: Audio Aero Prestigere ference SE: Nice sound, poor quality. Audio Flight CD ONE MK2: Very nice reedbook sound, but no sacd. ARC REF 7: Very poor cd player in my book, Wadia 381i: very good indeed, but a bit to analytical and lean.

Marry christmas to all og you.
Hi 0461,

Fantastic speakers, which i have been fortunate to own now for a few years. You will find my own post from a while ago on Powerful Tube Amp for SF Strads. You will see that I used to run the Strads with my old CJ MV60...great voices...but lacking in the power that the STrad is capable of using to deliver powerful bass. (Yes, the strad sounds wonderful with mid-powered tube amplification...it is just that having ample power reserves for the bass drivers does make a difference in the Strads delivery of bass..which can be very, very good)

in the end, i own a Gryphon Antileon (second hand). Gryphon has a reputation for being a warm, sometimes dark amplifier that has endless reserves of power. Endless. So the warm/darkness feels quiet tubey in some respects. But in terms of power, it is 100%, pure Class A at all levels...no Class A/B whatsoever. From 100watts per 8ohm load, it will double down to 3200 watts (peak) power per 0.5ohm load. (The Antileon Signature which is newer is 150watts class A...and also doubles all the way down... i believe one is on A'Gon now)

It made an enormous change to my bass (upper, mid and lower). It also dramatically opened the soundstage. And yet it bettered the midrange of my CJ MV60 which is a well respected mid-powered amp, particularly in the midrange and treble.

I have heard Krell evo 402 with Strads...liked and respected but did not love. OTOH, i thought Krell Evo 2 was stunning with the Cremonas...i think the Homage series need something a little different (to my ear).

I think you will find the Ref 3 to be quite a good match with the STrad...depends on the amp of course. In the case of Gryphon, Aldavis on A'Gon uses Ref 5 with his Gryphon and likes it. Plus I have heard the Ref 3 with Strads and ARC 110s on the Strad, and it was very good though i prefer Gryphons for tighter bass delivery. hope that helps. good luck! and keep us posted.

Microstrip, if it's in the budget, you might want to wait for the release of the Jeff Rowland Model 925 monos. I think Rowland amps mate very well with SF's. The model 925 promises to be really something special.
When the Stradivari were presented at the Arcugnano factory by Franco Serblin he used Krell amplifiers. Our distributor says that the new E series Krell amplifiers sound great with ARC Ref5 preamplifiers - if you have the possibility and budget try the new Krell EVO402e in your system. I heard this combination with Maxx3 and it sounded very good - much better than the old FPBs.

When I owned the Stradivari I could not find a tube amplifier that could control the bass in my room - even the old VTL MB450s.
Before ditching your current amp, I would suggest trying out a NOS tube for the powerstage of your Ref 3. A friend has been experimenting with NOS tubes in his Ref 3, and got good improvement in the areas you mentioned. Just don't hook up the Ref 3 to watch movies. He's blown two NOS tubes already watching exploding scenes.

FrankC
VAC Ren. Sig. Mk. III 140's were the best I've ever heard with the Strad's.
Electrocompinet Nemo's were also great.
Currently using Goldmund 29.4's & am much more than satisfied.
In the Stereophile review of the Stradivari Homage Michael Fremer mentions that the designer Franco Serbin used a David Berning ZH270 amp. No longer available this is a great amp that comes up occasionally on Audiogon.
ARC DS450. Should match well with your REF 3 and should have plenty of power to drive the Strads.