K40y9 PIO caps paralleled with MKT1813

Posted by KanedaK (A) on November 20, 2019 at 06:39:44

Having too much time on my hands these days (I damaged my knee ligaments and haven't been working for a few weeks), and having this new cheap active crossover to play with, I remembered I had some 0,033uF K40y9 Russian caps lying around (I used them as input coupling caps in my mid-high amplifier for a while).

Since there is a lot of space around the existing 10uF MKT1813 input coupling caps in the crossover, I decided to put the PIO caps in parallel with those.

Immediately the sound character changes completely: silky midrange, some kind of "glow" or "sheen" that's difficult to describe, slightly rolled off in the extreme highs but very transparent at the same time.

You really cannot mistake the sound of those caps with anything else. With everything acoustic / voices they really shine!

I need to listen more - the caps haven't been used in more than a year and they might go trough some slight changes; also I'm trying to listen to some eventual blurring of some frequencies because I use two caps in parallel - so far it seems fine tho.

What is the consensus on using a smaller bypass cap on a coupling cap? I read contradictory stuff about the merits / disadvantages of doing so...

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Topic - K40y9 PIO caps paralleled with MKT1813 - KanedaK 06:39:44 11/20/19 (25)

The best bypass cap is NO bypass cap - Salectric 05:37:26 11/25/19 (4)

RE: The best bypass cap is NO bypass cap - CG 17:48:34 11/28/19 (3)

RE: The best bypass cap is NO bypass cap - Uncle Mike 13:25:19 12/07/19 (2)

RE: The best bypass cap is NO bypass cap - CG 14:04:35 12/07/19 (1)

But, in a way, so what? - Uncle Mike 03:56:04 12/08/19 (0)

RE: K40y9 PIO caps paralleled with MKT1813 - madisonears 10:35:10 11/22/19 (3)

RE: K40y9 PIO caps paralleled with MKT1813 - KanedaK 00:22:25 11/25/19 (2)

RE: K40y9 PIO caps paralleled with MKT1813 - madisonears 18:19:44 11/25/19 (1)

RE: K40y9 PIO caps paralleled with MKT1813 - KanedaK 02:30:23 11/26/19 (0)

RE: K40y9 PIO caps paralleled with MKT1813 - Uncle Mike 14:07:48 11/20/19 (0)

Why seek the approval of others? - 1973shovel 07:03:19 11/20/19 (14)

I agree with Shovel - Story 07:51:09 11/20/19 (13)

RE: I agree with Shovel - Duster 22:30:36 11/20/19 (12)

RE: I agree with Shovel - KanedaK 23:03:26 11/20/19 (11)

My intent wasn't to imply you shouldn't ask - 1973shovel 07:33:34 11/21/19 (10)

When someone asks me what's the best is... - Cougar 20:50:18 11/22/19 (2)

I agree 100%, Cougar! - 1973shovel 06:29:21 11/24/19 (1)

RE: I agree 100%, Cougar! - Cougar 19:13:52 11/24/19 (0)

RE: My intent wasn't to imply you shouldn't ask - Duster 08:54:15 11/21/19 (6)

There's an endless supply of opinions - 1973shovel 05:08:10 11/22/19 (5)

RE: There's an endless supply of opinions - KanedaK 06:11:26 11/22/19 (3)

" I was already bored with the K40y9" - 1973shovel 07:39:23 11/23/19 (0)

RE: There's an endless supply of opinions - madisonears 10:58:25 11/22/19 (0)

RE: There's an endless supply of opinions - Duster 06:56:40 11/22/19 (0)

RE: There's an endless supply of opinions - Duster 05:48:10 11/22/19 (0)

K40y9 PIO caps paralleled with MKT1813

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