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A New Hybrid from Indeed Hi-Fi Labs: does this look fun? - Page 20

post #286 of 355
1/18/10 at 5:38pm
WIMAs are better, but I won't go for it for the price and size, in low voltage circuits there's lower audible difference.

I like the idea of all in one solution, thumbs up

What tube do you have it there? What about stock vs. upgraded sound? (sorry if you mentioned it earlier, this thread is too long to read and remember all posts)
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post #287 of 355
1/18/10 at 5:42pm
I got a good deal on a whole pack of wimas on ebay awhile back And I am running a Mullard ECC88

I don't really remember quite how it sounded at stock anymore, I just know that it sounds really really really good now. Actually I think what has improved the most is bass response and the highs are much crisper.

I've spent about 20gbp on upgrades and had a lot of fun doing it so I think it's worth it
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post #288 of 355
1/20/10 at 11:16am
While I also enjoy the sound of mine currently, I am going to swap the 16V caps to 25V 470ufs and install decent pots. I am looking at potentially installing a 6800uf or a 10K cap on the PS. To do so would require me to either remove the top acrylic sheet or remove a section of it.

I'm not having any luck in finding large audio grade electros either. If you have a source for these PM me.
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post #289 of 355
1/20/10 at 11:38am
why are you going for 25V and 470uF? Also which caps in particular, mouser has nichicon KW which are pretty good, also panny FM
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post #290 of 355
1/20/10 at 2:55pm
1 question, how can I reduce the gain of this amp? It drives my HD 580 to insane volumes.
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post #291 of 355
1/20/10 at 10:17pm
I had put 16V 470s (Elna Silmic II) in it based on yours and nerd1949's comments- 16V from yours and the 470uf from his. They sound extremely good. After reading jamato8 and CPL's comments about the voltages this past weekend, I decided to go back to 25V caps for the output.
I'm using a 4700 KW on the PS, now, and I'm thinking about putting a big cap there, like a 10K. Mouser has one 35V 10KuF KW... Do I dare buy the last one in stock?!?
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post #292 of 355
1/21/10 at 12:03am
Quote:
Originally Posted by Judge Buff View Post
I had put 16V 470s (Elna Silmic II) in it based on yours and nerd1949's comments- 16V from yours and the 470uf from his. They sound extremely good. After reading jamato8 and CPL's comments about the voltages this past weekend, I decided to go back to 25V caps for the output.
I'm using a 4700 KW on the PS, now, and I'm thinking about putting a big cap there, like a 10K. Mouser has one 35V 10KuF KW... Do I dare buy the last one in stock?!?

I think the high quality 16 volt caps would be ok on the output, I measured 14 volts on mine.
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post #293 of 355
1/21/10 at 12:40am
Just got mine today ... thru a 70's Mullard in it on a recommendation from the Judge and it sounds pretty damn good through the 702's. Once you guys get the mods weeded out send me the short list!
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post #294 of 355
1/21/10 at 1:26pm
Quote:
Originally Posted by ovrclkd View Post
Just got mine today ... thru a 70's Mullard in it on a recommendation from the Judge and it sounds pretty damn good through the 702's. Once you guys get the mods weeded out send me the short list!
I'm glad for ya! I have not heard a Mully that wasn't sweet listening in my amp. The ECC88 in mine now is an A Frame Mully that is strong, defined, airy with great bass depth and just a joy to listen to anything that's playing... including some Kanye that I got from my kids. Find an A Frame y'all... You won't regret it at all.

It does "indeed" sound really good right now. (Pun intended, lol.) I only feel the need to replace the pots on it, as they really just suck for adjusting the tube voltages. I'm looking at options to put a gigantoid cap on the PS, but I've got to determine if and how I'm going to mod the acrylic sheet. I need to research my Dremel accessories and skills, too, in that regard.

Nice little amp. I think I'll keep it.
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post #295 of 355
1/21/10 at 10:43pm
Replaced the pots with these. These are very easy to adjust precisely and they install very easy, too. Much better than the stock trim pots.

If you roll tubes, these are the $#!+ for ease of adjusting the voltage on the new tube. And if you are not rolling tubes, you don't know what you are missing.
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post #296 of 355
1/22/10 at 1:52am
I am currently out of town and would like to order a DC plug for my linear power supply.
Can someone please measure the DC plug dimensions for me? I need the inner and the outer diameters.
Thanks
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post #297 of 355
1/22/10 at 5:42am
again, anyone know how I can reduce the gain of the amp?
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post #298 of 355
1/22/10 at 1:36pm
What is the difference between using 470uf and 1000uf (25v or 16v)caps? I am about to order some to replace the two in my Bravo with kz caps. Will 470 sound better? I was planning on replacing the same specs.
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post #299 of 355
1/22/10 at 1:44pm
Quote:
Originally Posted by gurusan View Post
again, anyone know how I can reduce the gain of the amp?
Dont know your source but how about something along the lines of an inline attenuators?
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post #300 of 355
1/22/10 at 2:10pm
Quote:
Originally Posted by 22B View Post
What is the difference between using 470uf and 1000uf (25v or 16v)caps? I am about to order some to replace the two in my Bravo with kz caps. Will 470 sound better? I was planning on replacing the same specs.
In the Silmic IIs, 25V 470s are much bigger than the 1000 RJJs. To my ears, the 16V Silmic II 470s sound awesome and I'm sure that nerd1949's 470 KZs (IIRC) sound much better than the RJJs, too.

Make sure that whatever you decide to put in there will actually fit before you buy them.
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