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
The cap on Humble Homemade HiFi site is NOT the new cap from Jupiter. The Flat stacked Beeswax cap has been out for over a year but just now got reviewed. This brand new not yet released Copper foil cap is suppose to be way, way better than the current best Jupiter caps. Wait and see....er hear.
For those who have experience burning Duelund CAST capacitors with the cable cooker.

a) I first put the 7.5uF in series with 2.4uF to burn with the cable cooker. How many days do you suggest?

b) Then I will put the huge 56uF. How many days?

Thanks
Question for those with experience in biamping:

I bought a second pair or Krell fbp 750mcx, a Pass XVR-1 and interconnects/cables to biamp the Dunlavy SC-VI. I will use the extra set of Krell exclusively for the 4 x 15” woofers.

The passive crossover circuit for the parallel 15” drivers has a series inductor of 6.8mH (first order crossover), and then a RC circuit (Zobel – for impedance equalization) with R= 0R37 (6x 2R2 in parallel) and C of 220uF.

When I biamp with the new set of 750mcx, should I: (i) remove only the inductor and leave the parallel RC, or (ii) remove also the parallel RC?

Of course I can try both alternatives, listen and measure, but I would like your opinions.
The Krell should be able to handle any reactive whip lash with out a Zobel network. The 220uf cap seems that it would be the bass filter for the 2 8ohm 8 inch mid-woofers wired in parallel that net 4 ohms combined for a 6db slope around 180hz. That's a maybe from way over here. Tom
Hi Tom,

The 220uF cap is not in the circuit of the 8" woofers. The crossover circuit for the 8" woofers is composed of a 2.56mH inductor in series with a 10R0 resistor (3x 30R0 resistors in parallell), and in parallel with the 8" woofers are a 3.3uF cap in series with a 123.0 uH inductor.

I understand the Krell is able to drive the parallel 15" woofers directly, but I was wondering what are the pros and cons of leaving the Zobel network or taking it out.