Cayin A88T break in and biasing??


Just took a Jolida 302BRC back to a dealer to
get the A88 instead. I loved the Jolida no doubt,
but assumed the A88 would be a step up, and so far
all I can say is it has the potential but sounds
a little hard & brittle now.
Just wondering if anyone has had experience with it
and does it get better with time?
I need to know before I go drop another 1k on it.
Also...I never could get a handle on whether or
not the amp is self biasing or not?? Most people
say it is not and you have to take it out, flip it over
and bias it....that's crazy and would be a deal breaker
for sure!
Any help or thoughts on this would be greatly appreciated.

BTW... I only had about 6-7 hours on it when I started
to give it a listen.
telescope_trade
Sringle, The new A100 is indeed one beautiful looking amp. The only drawback may be with the image of the 88 tube, which tends to be 'fluffy', that is big on the midrange, but lacking on the ends of the spectrum.
I need dynamics across the board, which the KT90 tube offers. A straight narrow tube, EL34/KT90 others have different dynmaics vs the 'tube-ier" 845, 211, 300B, KT88.
Though actually I want to hear a good 845 and may consider the big Cayin mono blocks 845.
Correct me if i'm wrong in any of the above.
I have the Cayin 100T. Its been about 6 weeks but I only have about 150 hours on it but so far so good. Being far too green at this hobby I can't begin to describe the positives and negatives but I really like the way it sounds. At first it did sound too harsh or brittle but now its begun to open up. I listen mostly to jazz and I love the way it handles female vocals. Triode sounds nice but is a little too laid back for me so I prefer Ultralinear. My dealer suggested that I swap out the stock KT 88's for 6550's.

One point - the bias meter is not like Rogue's, it pretty much just a center point that each pot is adjusted to. I only had to do this once. To my knowledge, there's no way to what is the exact test point or reading. Hopefully that makes sense. Enjoy the Music has a new review on 70T and I can also post pictures if anyone is interested.
Hey Bob - the Cayin 70T is auto biasing. I went and checked out my neighbor's yesterday and we looked all over the manual and the amp and there is nothing about biasing anywhere. That is what the dealer told us but we double-checked. He just plugs and plays whatever tubes he wants. So if you still want to try a Cayin amp, get the 70T. It sounds fantastic and you can switch between ultralinear and triode on the fly with the remote! You can also try all the KT tubes as well as the EL tubes in it. Really cool.

Also, the 70T for the US market puts out 55W in UL and 27W in triode. Don't get it confused with the asian market version that is 35W in triode, or some such.

Lastly, there have been reports of fake Cayin amps being sold. I would suggest getting one from your dealer to be safe and sure.

Arthur
Mightyburner, you have an answer to my upgrade from my JOR. I was considering a Cayin 845 mono ($$$!!!) + nice Melody preamp, a real monster weighing i at 50 lbs!! But with your post on swaping the KT88's for the 6550's may be another option.
You see I've had EH88's in my JOR and was a flop. Also had a cheap chinese KT88 for demo, and was a flop on classical as well.
Also heard several other 88 amps, Audio Research, and didn't like the muddy imaging.
I believe the 6550 is close to the KT90's, slender tall tubes.
I love Cayin produts, and this A100 + 6550's may be my solution for upgrading.
Here it all depends on what 6550's are avaliable. I love RCA tubes, if I can loacte a NOS RCA 6550, then the Cayin A100 may very well be my next amp.
Telescope how ya doing with your A88? have you found tubes yet?
Also I think I'll roll the stock pre tubes on the A100.
Yes instead of forking out $$$ on a used Jadis DA60, this A100 at under $3K is a pretty good option.
Plaese post a review on your A100 when you get the new tubes.
Paul
Baton Rouge
No the 6550 is a close in design to the KT88, sorry that tube I do not think is gonna work for my orchestral. Back to KT90's. I wish some tube guru would post a comment on why the KT90 presents classical with the dimensions that other tubes fail at.
I think it has to do with the shape of the glass, its straight and narrow, so the musical energy doesn't get all sloshed around inside, as with the 'bulbier' 300 , KT88 and quite possibly with the 6550.
Thoughts?