The JPS Labs: Abyss AB-1266 Impressions Thread
May 1, 2022 at 1:25 PM Post #20,146 of 22,483
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May 1, 2022 at 1:41 PM Post #20,147 of 22,483
These O-rings could be your friends:

https://www.amazon.com/gp/product/B07GSKKHQM/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&th=1

81UiLoz4CiL._SX522_.jpg


I just swapped the original O-rings on my 1266 with a pair of the ones in this box and then bam! No more unbearable clamp force.

Brilliant! Thanks for the idea!
 
May 2, 2022 at 8:29 AM Post #20,152 of 22,483
What size did you select?
I do not remember exactly. I just made sure the replacement pair was a size or two larger than the original pair by eyeballing them. Luckily the first pair I selected worked like a charm. I really think it is easy to experiment with sizes when you have the whole set of O-rings before you. I hope that helps,
 
May 2, 2022 at 10:17 AM Post #20,153 of 22,483
I purchased the set of O-rings before I even received the headphones just to be safe. According to one of the members on a recent previous post the size of the O-rings is 213. If you buy the kit you get all kinds of sizes 10 O-rings per size up to size 226 which would probably be too big so you should be able to find the best size with experimentation.
 
May 2, 2022 at 8:33 PM Post #20,154 of 22,483
I've read many old replies these days. I find 600i is a good choice, but I'm currently using luxman l509x. I don't know if anyone has compared these two amplifiers for 1266tc, I know a little about the simaudio style. I've used 430ha and 650d CD
 
May 3, 2022 at 1:55 AM Post #20,156 of 22,483
I've read many old replies these days. I find 600i is a good choice, but I'm currently using luxman l509x. I don't know if anyone has compared these two amplifiers for 1266tc, I know a little about the simaudio style. I've used 430ha and 650d CD

I had the Simaudio 600i, and listened to the Luxman L-590AXII at length. I did not try the 509, although I would not expect a dramatic change with the AB-1266, also because at the impedance / power requirement of the Abyss the 509 would work in class A all the time as well.

The Simaudio was the epitome of transparency and linearity, with an elegant yet very big sound (the classic 'iron fist in a velvet glove').

The L-590AXII has been one of my favorite amps with the Abyss and actually if one finds a unit on the used market close to 5kEuro this would be my most recommended amp in that price bracket. What I liked about the Luxman was the refined, supple sound with a touch of lower midrange / upper bass emphasis, and the possibility to tune the sound further with all the tone controls.
Not to mention the aesthetics of the thing that is timeless.
 
May 3, 2022 at 5:33 AM Post #20,158 of 22,483
I had the Simaudio 600i, and listened to the Luxman L-590AXII at length. I did not try the 509, although I would not expect a dramatic change with the AB-1266, also because at the impedance / power requirement of the Abyss the 509 would work in class A all the time as well.

The Simaudio was the epitome of transparency and linearity, with an elegant yet very big sound (the classic 'iron fist in a velvet glove').

The L-590AXII has been one of my favorite amps with the Abyss and actually if one finds a unit on the used market close to 5kEuro this would be my most recommended amp in that price bracket. What I liked about the Luxman was the refined, supple sound with a touch of lower midrange / upper bass emphasis, and the possibility to tune the sound further with all the tone controls.
Not to mention the aesthetics of the thing that is timeless.
 
May 3, 2022 at 1:32 PM Post #20,160 of 22,483
Yes I did the o ring thing today and loose fit. I placed a piece of padding under the Abyss pad and issue fixed. No more squeeze at the top of the ear pads making gap more even and loose so bass does not cancel out on one side. I just ran over and bought a bunch from ACE Hardware.
 

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