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Any Recommendation for 100uF Capacitors in Quad 34 pre amp welcome

Update. I have all 17 100uF caps now fitted with Panasonic FR 35V types (with the change of polarity of C16/C17) and I couldn't be happier.

https://www.mouser.de/ProductDetail/Panasonic/EEU-FR1V101?qs=tfZGHB2PWd1LosiJY3G7%2Bg==&countrycode=DE&currencycode=EUR

I did not bridge some of the capacitors. The sound is rich balanced full and very spatial. Also, the frequency response is very balanced.
I had in between increased the output voltage and I had to exchange the last 2 resistors in the signal path of each channel before the output. This was disappointing and I went back to the standard 0.5V with 2.2K in series and 1K in parallel. Unfortunately the legs of the original resistors were broken off when I bent them again. I thought it would be no problem to change them. First I had Vishay metal film resistors. The sound was aggressive. Then I followed a recommendation from a forum (not for the 34) and took KOA SPR 2 watt. The sound was very clean and pleasant but all the spaciousness was gone, even after two weeks of listening. But I had also ordered the same types in the 1 watt version. I can not believe it but all the spaciousness was back. The 2 W types sound a tad "cleaner" but I quickly got used to this bit more distortion of the 1 W type. The musicality and 3D presentation are more important to me.
So the 34 can stay to my satisfaction.

I do not belong to the group of esoterics. I have also not exchanged the parts for reasons of a curiosity. The caps were too old and the resistors broke in two. Maybe someone can explain scientifically why the 2 watt types sound so sterile and 2D but the 1 watt caps of the same series KOA SPR so open transparent and musical. I'm not counting beans, it's obvious to the ears of my wife and our friends as well.

BTW for all lovers of the Quad 306, I have found at Mouser inexpensive and good banana speaker plugs that do not change the outer appearance but much more stable to accommodate the plug because they are made of gold-plated metal and not a thin sheet metal sleeve in a plastic tube.

https://www.mouser.de/ProductDetail/Pomona-Electronics/2854-2?qs=4luskHXVU9Y30tZjyXNdvg==&countrycode=DE&currencycode=EUR

As a replacement for the mains electrolytic capacitors of the 306 I installed these new caps. They last 8000 hrs at 105 degrees and they sound very good (if they are allowed to have a sound at all).

https://eu.mouser.com/ProductDetail/KEMET/ALC80A562CC063?qs=T94vaHKWudSbqp8mWLAllw==&countrycode=DE&currencycode=EUR
 
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I'm fond of Panasonic and TDK (Epcos). But I bypass them with 2nF MKP. YMMV. And I fit an EMI filter on the mains with all the cr@p that is these days on the mains from LED's, switched power supplies, what have you.
 
In another Quad 34 I have replaced the electrolytic capacitors with Panasonc FM 10V types. I tried the lowest available voltage and I am very pleased with the sound. A bit silkier than the 35V types but at the same time clear and transparent. Perhaps the small voltage electrolytic capacitors can format well. I can recommend it with a clear conscience.
 
I tried Silmic II some years ago as FB caps on an own-brew NA323 circuit: soft, squidgy sound, much as described above...
I was going to suggest pana FRs (I've tried pana FCs and they sounded awful, to the point of being disjointed) and see that you like FRs and reckon you won't go far wrong with them.
 
I have found to like Pana FR and FM. My last post was also about the voltage of the caps and my impression is that a low voltage cap sounds very good in the 34.
 
A big thanks to the members who suggested the Panasonic FR and FM series capacitors, this past week I re-capped an older Stanton phono preamp which uses a number of 100 uF electrolytics in the signal path and they are very good sounding replacements (along with some shunt film caps in a few places as well).
 


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