Conrad Johnson Classic Sixty


Anyone have any experience with or heard the Conrad Johnson Classic Sixty Tube Amplifier? I don't have a dealer near me, but am looking for an amp to pair with a CJ Classic Preamp and B&W 805S speakers.
viggen9
I have a Classic 2SE and really wanted a Classic 60 but with a daughter in college and my son not far behind that wasn't happening....   i was using a McCormack DNA 125 which was nice but i missed having a tube amp....not even looking for an amp i stumbled across a pair of Quicksilver Mid Mono amps about five miles from home.   GREAT amps,  they sound incredible with the Classic driving Revel M 106.    The best part is that after selling the DNA 125 I was into them for $200....

  1. I have heard the 60 and it is a great sounding amp....c-j just released the Classic 62.......looks nice
For the record: Modern solid state amps are common among pro bass players (especially acoustic bass players who often use a small amp along with the house PA) as many designs sound great…often with tubes in the preamp section. Gallien Kruger was one of the first brands to come along that working bass players thought sounded great, and many others have followed. That said, tube bass amps like the classic Ampeg SVT (80 pounds for just the amp) and Mesa tube amps sound great also, and those who want to schlep ’em around do. I have an Ampeg Class D 350 watt bass amp that’s tiny, and a solid state Eden combo bass amp (plus tube guitar amps), but have in years past used things like Fender Showman tube amps and a tube Mesa 400 watter…all good. Also, in my home listening rig I use a 12 watt per side Dennis Had single ended tube amp that kicks butt and has very strong and controlled bass (efficient speakers are required I think)…for duty below 40hz (where my speakers drop off somewhat) I use 2 REL subs, so there's that.

There is some serious misinformation in the mix in this thread.  What kind of amps do many, many bass guitarists use?  Tube amps?  Really?  Gee do you suppose they know something about the sound they want? 
I am using Quicksilver Silver 88s (no longer made) but I would consider trying the mono 120's at about 4K with KT150 tubes with your CJ Classic preamp. I have listened to 5 different preamps in my system with the Quicksilvers, currently a highly upgraded vintage PV9a which is a very synergistic match. I'm just betting that  pairing  the Quicksilver with your Classic pre would sound superb with your 805 speakers and you'll have no issue with the bass or anything plus plenty of power and only 2 ouput tubes per mono amp. I find the Classic 60 glorious but a bit light in the bass during a limited exposure. The Quicksilver amps  have a beautiful midrange with NO faults that I have yet detected in 3 years of ownership, probably the best amps I've ever owned and among the most satisfying I've heard across the board, they breathe life into the music and NEVER bring attention to themselves or make you question whether something is missing and THAT IME is special. Then I added  2 Rel Strata III subs over the past year, and well, that is a story to itself.


On the general subject of bass, agree with zavato,on the issue of synergy with the speaker and damping factor. But to categorically state that tube amps have fat bass or  lack bass is not accurate for ALL tube amps.I've heard some low powered SET amps that produced bass that was astonishing, and  I have heard SS amps that lack bass as well because of their damping factor. Designing amplifiers is often about choices to attain a desired result..

I think tube amps and ss amps tend generally to have different bass quality. If you did a frequency response check, I doubt that a steady state frequency response check would show much difference.

But dynamically, there is a tremendous difference in each type's typical damping factor. Tubes are rather low and ss is rather high. A low damping factor can make the bass sound quite ripe and thus give the impression of a fuller bass. An ultra high damping factor can yield a very tight bass, which ironically can sound somewhat lean. But it really isn't. Synergy with the right speakers is key. 
No most tube amps are not light on bass. In fact I find them to do bass much better than solid-state amps. It's true solid-state is tighter but does not sound natural to my ears. 
I have the CJ Classic Sixty SE with an ET5 preamp, driving Devore Super 8s. A magical combination! In my setup, I find the Devores to be light on bass, so I supplement with a Rythmik F12G-SE subwoofer. The Rythmik blends seamlessly, so I find the whole setup to be the best of all worlds.
bobrock,

not in my auditions. I will say that if one prefers electric guitar/electric bass- driven music, a solid state power amp is the way to go. Faster attack to my ears.

The CJ Classic 60se has enough "juice" to drive B&W 801/802D floorstanding speakers.
Aren't most tube amps a little light on the bass? I have never heard one that can go as low as solid state. Is that a fair criticism of CJ gear when most tube amps have same issue?
I traded my Classic 60se for the new MF2550se -never looked back . I find the ET3se/MF2550se combo delivering the best of both worlds-texture and tone , detail and imagery. the 60se wasn't convincing at the lowest octaves.
Viggen-

the Classic 60 is a sonic match w/ B&W speakers.
It has enough juice to make the floor -standers sing.
Best mated w/ a CJ ET-3 / ET-3 SE pre-amp.
You can use Audioquest or Transparent cable/cords as well.
Keep us posted.
I recently heard a Classic 60 with a sub through some Thiels and it sounded beautiful.
I have sixty classic paired up with classic SE and it has awesome mid range , little light on base. I also have Jolida 801BRC which is extension on lower freq but can't beat classic sixty.
classic sixty SE version gives it extension on lower end but colors mid range more to my taste.
Hope it helps.