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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
charles1dad's avatar
charles1dad
10,250 posts
 
Good discussion gentlemen and again another example of the pure subjective nature of this enjoyable hobby. Volleyguy I don't know if many have actually compared CAST-VSF s you have patiently done. I just went straight to the CAST and glad I did. Sal has far more DIY experience and hands on expertise than me and is familiar with numerous brands of capacitors. I respect his observations regarding the CAST's relative lack of air and sparkle and certainly accept the premise that nothing is perfect.

All I can contribute is this, I listen to live jazz in smaller venues quite often (10 visits to clubs the past 2 months) I've been doing this for close to 25 years. A good friend happens to be one of the better drummers in our area (I even listen to him practice sometimes). I feel that I have a good ear for drums, cymbals and most instruments due this type of unfiltered exposure. IMO the CAST capture the air, harmonic tones, energy, sparkle and what ever else you want to call it exceedingly well. Sheer honestly and realism wih cymbals nearly as I hear live and up close with the natural attack and decays intact.
We may differ on our various impressions here but as for me , I just believe that the CAST provide astonishing realism. They compared to other capacitors probably aren't "adding" artificial enhancement but instead are keeping it real. My 2 cents worth.
Charles,
salectric
755 posts
 
Volleyguy, As to why the linestage coupler should be more critical sonically than the phono couplers, I really have no idea. That's simply what I have observed. But this is consistent with my experience generally that the linestage is the single most critical electronics in the system. Anything done to the linestage seems to have more impact than if the same change is made in the phono stage or power amps, whether it's changing the power cord, a tube, a change in the power supply, a resistor or the coupling cap.
vn101606
73 posts
 
Hello,

I am still tweakin the Duelund cast external crossovers for my Dunlavy SC-VI, with the help of Eddie (also engineer, DIY).

Resistors: All resistors are now Duelund Cast. Big improvement in detail

Capacitors in the main signal path: Duelund Cast. More detail, more air, eliminated some nasality present wih Solen, more open, more dynamic

Inductors: Not sure about the effect of the inductors. Maybe changed too many things too quickly.

Next we will be doing a complete we-wiring, and biamplification.

Should I also change the capacitors and inductors that in parallel to the drivers, going to ground, to Duelund? Would it make an audible improvement? Or should I keep them Solen?
salectric
755 posts
 
The shunt components in a multi-order crossover (2d, 3rd, 4th order) are very important sonically, but not to the same degree as the series components. Put another way, the parallel components make a major difference, the series components make a hugely major difference!

In my 2-way speakers, I use a 2d order crossover so the high-pass has a series cap and shunt choke, and the high-pass has the reverse---series choke and shunt cap. Each one is very important but I would rank them (from most important to less) like this: 1. Tweeter cap, 2. Woofer choke, 3. Woofer cap, 4. Tweeter choke. It's possible that 3 and 4 might be reversed, hard to say for sure. I am more confident about the other rankings. Of course, the crossover frequency is also important. My speakers have a 1200Hz crossover so both drivers play vital roles.

Replacing a Solen with a CAST even in the shunt position should make a very worthwhile improvement.
vn101606
73 posts
 
Seletric, Thanks for your response. In this specific case, they are 1st order crossovers. I understand the parallel components are mostly to improve the impedance of the drivers as seen by the remainder of the circuit. Do you think that also in this case it would be worthwhile making the changes?
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