Capacitor log Mundorf Silver in Oil


I wished I could find a log with information on caps. I have found many saying tremendous improvement etc. but not a detailed account of what the changes have been. I have had the same speakers for many years so am very familiar with them. (25+ years) The speakers are a set of Klipsch Lascala's. They have Alnico magnets in the mids and ceramic woofers and tweeters. The front end is Linn LP12 and Linn pre amp and amp. The speaker wire is 12 gauge and new wire.

I LOVE these speakers around 1 year ago they started to sound like garbage. As many have said they are VERY sensitive to the components before them. They are also showing what I think is the effect of worn out caps.

There are many out here on these boards I know of that are using the Klipsch (heritage) with cheaper Japanese electronics because the speakers are cheap! (for what they can do) One thing I would recommend is give these speakers the best quality musical sources you can afford. There is a LOT to get out of these speakers. My other speakers are Linn speakers at around 4k new with Linn tri-wire (I think about 1k for that) and the Klipsch DESTROY them in my mind. If you like "live feel" there is nothing like them. In fact it shocks me how little speakers have improved in 30 years (or 60 years in the Khorns instance)

In fact I question Linn's theory (that they have proved many times) that the source is the most important in the Hi-Fi chain. Linn's theory is top notch source with lessor rest of gear including speakers trumps expensive speakers with lessor source. I think is right if all things are equal but Klipsch heritage are NOT equal! They make a sound and feel that most either LOVE or hate. (I am in the LOVE camp and other speakers are boring to me)

So here goes and I hope this helps guys looking at caps in the future. Keep in mind Klipsch (heritage Khorns Belle's and Lascala's especially) are likely to show the effects of crossover changes more then most.

1 The caps are 30 years old and
2 the speakers being horn driven make changes 10x times more apparent.

Someone once told me find speakers and components you like THEN start to tweak if needed. Don't tweak something you not in love with. Makes sense to me.

So sound
Record is Let it Be (Beatles)
The voices are hard almost sounds like a worn out stylus.
Treble is very hard. I Me Mine has hard sounding guitars. Symbals sound awful. Everything has a digital vs. analog comparison x50! Paul's voice not as bad as John's and George's. Voices will crack.

different lp
Trumpets sound awful. Tambourine terrible. Bass is not great seems shy (compared to normal) but the bad caps draw soooooo much attention to the broken up mid range and hard highs that are not bright if anything it seems the highs are not working up to snuff. I have went many times to speaker to make sure tweeters are even working.

All in all they sound like crap except these Klipsch have such fantastic dynamics that even when not right they are exciting!

Makes me wonder about the people who do not like them if they are hearing worn out caps and cheap electronics? Then I can see why they do not like them! If I did not know better from 25+ years of ownership that would make sense.

For the new crossover I have chosen Mundorf Silver in Oil from what I have read and can afford. I want a warm not overly detailed sound as Klipsch already has lots of detail and does not need to be "livened up" they need lush smooth sounding caps. Hope I have made the right choice?

When the crossover is in I will do a initial impression on same lp's. Right now it goes from really bad (on what may be worn vinyl) to not as bad but NOT great on great vinyl. (I know the quality of the vinyl because tested on other speakers Linn)

The new caps are Mundorf Silver in Oil and new copper foil inductors are coming. I will at the same time be rewiring the speakers to 12 guage from the lamp cord that PWK put in. PWK was a master at getting very good sound often with crap by today's standards components.

The choice of speakers would be a toss up now depending on what I am listening to. Klipsch vastly more dynamic but if the breaking up of the sound becomes to much to effect enjoyment the Linn would be a better choice on that Lp. If I could I would switch a button back and forth between speakers depending on song and how bad the break-up sound was bothering me.

volleyguy
Ahhhh that's better! (vintage in and sounding wonderful)

Comparing the Jensen Duelund vs. the Ampohm vintage as coupling caps.

Duelund doing what they do best turning random sounds into instruments.

Three biggest improvements of all parts changed and it has been a lot!

1 Duelund CAST tweeter caps even over VSF (shocking reduction in noise)
2 Duelund woofer inductor VSF high freq noise reduction that shocked me in comparison to North Creek and the second place contender being the vintage wax paper inductor. (would still LOVE to hear a CAST inductor)
3 Vintage electrolytic over Jensen just huge and really opens the mind as to what is possible in the power supply.

All tests are being done on horn speakers and horns hate noise.

The theme is consistent and seems to never change. Make sure the part has a way of dealing with resonance or it will deal with you!
Volleyguy1, I use those large computer grade can caps made by Mallory. I find they work very well in power supplies, Have you tried them?
Can one even find a PIO with enough capacitance for a proper power supply? I use values from 1500uf to 3300uf. I have learned from an excellent tube amp builder that a power supply should be made with large can computer grade caps and loads of capacitance for best sound.

I am nearing the end of a tube amp build right now and am building the power supply so this topic is very interesting to me.
Well Volleyguy you really would like the Cast inductors. No noise I can hear, excellent dynamics, tonal color, and immediacy. Put them in my 3.6s. Go for it. As for electrolytics it's too bad the Black Gates are no longer available as they have the lowest noise floor or anything I've tried . Imagine a 200 watt/ ch amp with 160,000 uF ps of these!. As an alternative I'd try the Mundorfs, Evox Rifa PEH, or Sikorels, the last of which I've never seen in the US.
Grannyring
I think my vintage caps are Mallory but I am not sure what they share with modern Mallory caps?

I assume your amp has a SS power supply not tube rectified?

The EL 84 amps I have use 60/40uf. Your size would be out of the question.

I am certainly no power supply expert just a guy with ears.

Grannyring I am "stuck" with the Duelund VSF inductors. (but i do believe you! From CAST experience) That was part of the reason for the thread having people talk before they buy. (selling parts is great way to lose money!)

Was anything close to the Black Gates and did you try the WKZ series. They look quite big and heavy.