ARONOV LS-9100 ..How realible is this tube amp ?

Pescolar, The input impedance is 470k. As far as whether you should trade that is up to you. Can you audition them in your system? I would think they would go for $1800 on the low to $3000 on the high. When rolling tubes I find I like the Winged C, and my favorite is the EI KT90's type2. I have my amps moded to run in triode and thy sound great with the KT90's. Pay close attention to the driver tube. It makes as much difference as the output tubes. I like the RCA's and the IEC Mullards.

Is Aronov still in business? I can't find a working URL for them - I thought that it was aronovaudio.com

Since the trade I am seeking for this amp is off.The guy who is one of A'gon member said his Aronov LS-9100 is rare and hard to find and he will regret trading it.

Anyway I decided to get Aronov LS-9601 in the near future that will easily drive my 90db speaker.

Also I will keep my Threshold 4000 Class A amp.. 200 watts s/s class A amp at this time will
cost at least $8k or more..not affordable to audiophile like me.
I thank you all for all the input and info that you shared.
Thank you so much.

Pescolar, frankly the reason I have the integrated vs the monoblocks is simply because I found the integrated at a bargain price...If I had had the option for the monoblocks, I would have sprung for those, and opted for more flexibility in my system with preamps and so forth (not that I am unhappy with the Aronov preamp, just curious as to how a different preamp would change things). I did see a set of the Aronov monoblocks on audiogon a year or two ago, but don't recall the asking price...but I remember wishing I had need and $ for a second system!
Bodotes, I believe Aronov is back in business, but there's no website. here's the latest:
http://www.theaudiobeat.com/equipment/aronov_la200.htm

No complaints here, I got my older version amp for under a grand (new model is $5,000), because no one knew what they were looking at in the shop...for better worse, on a musician's wage, I'm a budget audiophile

IMO, an excellent design.  After making a few mods (changed ground path, added silver leads, updated caps, driver tube, etc..)
no issues for years.. bullet proof.
THE ONLY ISSUE.. these babies run HOTT!
I live in East Texas and can only enjoy them from Oct. to March. Then I'm forced to live with my SX1250s (i have a pair of them.)
I have to get off the floor when I threaten my wife with selling them (she carries a BIG STICK.)  LOVE EM!!