Great review and I completely agree, the JC1's are the real deal!
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Nice review, DaltonLanny. 1300 hours for break-in? I hope that's in dog hours.
Congratulations on a fine purchase. The consensus seems to be that the JC-1 is an excellent amp. I'm of the camp that the key to any good system starts and ends with the amplifier. Do you have any thoughts on that?
BTW, if you're up for experiments, I'd like to recommend that you audition the Audience Au24 speaker cables and ics. At least one or more dealers will give you a 30 to 60 day audition period. I don't think you'll be disappointed in the least with the Au24's and the JC-1s.
Stehno, Timchen, and Tireguy:
Thanks for your replies! I appreciate all of them.
It takes about 2 months of 24/7 signal to fully break-in the JC-1's, just ask Bob Crump.
Yes, the amplifier does make a huge difference in the sound of a system! I agree with you, Stehno, on that totally.
Yes, I would love to try the Audience Au24 ic's and speaker cables. I have heard alot of good things about them and the JC-1's together!
I would like to add that my Adcom GFP-750 preamp matches up EXTREMELY WELL with the JC-1's, believe it or not! I use the balanced XLR outputs on it. Alot of people don't like this preamp, but I beg to differ! I love how it matches up in my system! It is a bargain!
Finally, I would like to add that the JC-1's throw a huge 3-dimensional soundstage, lack any transistory hardness, grain, or etchiness, have pristine, smooth, and crystal clear highs, exceptional midrange palpability, and detail, and have exceptionally tight, powerful bass, and ultra-extended low bass! Even if I would have had to pay the full retail price for them, I would still call them bargains because of what they bring to the table, sonically. They are also built like tanks and look gorgeous! Solid state amplification has come a LONG,LONG WAY!
I have my Purist Audio Break-in disc running 24/7 since I got my JC-1's a couple of weeks ago. Can't wait for them to finally snap in shape.
I have the Purist Venustas cabling through out and am extremely happy with the results. Wonder how they would compare to the Audience line?
One thing for sure, these amps put out more heat than any amp I have owned! Should help on my heating bills in the winter months to come.
I am still amazed about the price of these gems. I have had everthing from Krell 650M's to Rowland 9Ti's(which I sold to buy a Land Rover!). These amps have no problems keeping up to the level of performance I am accustomed to!
Congrats Dalton..., glad to see you finally took the leap. Gota love your enthusiasm. They are fine amps and can't be beat for the price. I've owned some fine amps in the past, including a Classe Omega Omicron, and while I haven't directly compared them, I feel very satisfied with the performance of the JC-1s. The break in is for real, although they certainly don't sound shabby from the get go as you already know. They start snapping into shape at about the one month point and continue to get more dynamic, transparent, and slightly less forward. Its a much more subtle break in process than I am accustomed to with other amps, but they will sound dramatically better in a month and a half from now. I would highly recommend the TG Audio SLVR powercords with the JC-1s. If I'm not mistaken, I believe Bob Crump voiced the JC-1s with these pcs.
Gfroman,Tom munro, and Mdomnick:
Thanks for your replies to my JC-1 review. I appreciate your replies and feed-back very much!
I will post the results after my JC-1's are fully broken-in.
Unfortunately, I will probably wait till Fall when the weather cools down to break them in. Can't wait!
Thanks again you all.
Just added a Pass Labs X-1 preamp to my system.
Boy oh boy, what a combination!
My JC-1's still only have about 250 hours max. on them, so they are no where near broken-in yet. Can't wait! I am going to begin the 24/7, 60 day low-level signal break-in at the end of this month, or in early October.
Admittingly, I was beginning to have reservations about the sound of the JC-1's. They seemed to have a cloudiness or haziness in the mids and highs, lacked any depth or real dimensionality, seemed a little rolled off and/or undynamic on top, and sounded alittle lean.
After I added the Pass, all these perceived weaknesses went POOF and seemed to totally disappear! Preamp choice is absolutely critical with these amps!
Again, I must say, these are the best overall awesome sounding amps I have heard in my home or anywhere else, and they are no where near broken-in yet. I don't regret buying them one bit!
My one experience with Halo Amps is entirely consistent with this review, except, that I am a tube lover, yet I found this sound to be very enticing. It does not have tube palpability but it was (in my one audition of them) extraordinarily precise and lifelike. No transistor artifacts yet not boring like some transistor amps that avoid those artificacts.
I'm eagerly awaiting tomorrow's arrival of my pair of JC-1's. Any comments on the power demands of these brutes? My apartment's panel has 20amp breakers and I use a Monster AVS2000 & HTPS7000 (no guffawing, please - they happen to work quite well in my application). I'm concerned as to whether or not I need to dedicate a line/breaker for these amps. What about quality control? I've read some threads in other fora where these amps have been compared to very stylish albeit equally lethal Claymore mines. Having lived with a quad of Halos (2xA23's, T3, P3) I'm very satisfied with everything about these products. Thanks.
Thats all I can say!
After 2 agonizing months of 24/7 music signal through my JC-1's, they are now fully broken-in!
The changes to the sound since I originally bought them is truly dramatic.
The top-end has openned up, and seems to have no limitations or boundaries, the mids are much more open and detailed, the image depth and width is amazing, and the bass is simply awesome!
For the first 30 days or so, the sound was slightly rolled off on top, alittle muddy in the mids and highs, and the sound lacked any kind of depth. The bass became alittle mushy. They sounded overly smooth, polite, and laid-back and lacked drama.
After 45 days they became thin, lean, bright, too forward.
At approximately 60 days of 24/7 playing a low level musical signal [AM/FM tuner], they transformed!
They are now the most detailed, transparent, and neutral amps I have ever heard. The sheer speed of these amps is amazing! The bass is simply the most extended, powerful, and tight bass I have ever heard. The image depth and width is world class.
I have no regrets at all buying these amps. They are the best audio purchase I have ever made.
I must admit from about day 10 to day 59 of playing time I had regrets about buying them. They were sort of disappointing and seemed lacking in several key areas, especially in top-end extension and dynamics, mids were too laid-back and lacked transparency, and the image had practically no depth or width.
All that has now changed for the better, or may I say BEST!
If you buy these amps, it is ABSOLUTELY ESSENTIAL that you give them their full 60 day break-in with a music signal, or you will never hear them in their full glory, and believe me, it is glorious!
Simply leaving them powered on for 60 straight days will NOT break them in. They must have a music signal going through them during that period.
If I had to sell every one of my stereo components, the JC-1's would be the LAST that I would sell.
I love these amps!
Great review, I must agree with you on all aspects of the character they possess through break in. I've owned mine for about a year and have mated them with a VTL 7.5 preamp. My only critisism would be the audible hiss from 10' through JM Lab Utopia be Diva speakers. Are you experiencing the same level of hiss?