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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
grannyring's avatar
grannyring
6,518 posts
 
Salectric, and others,

I am going to upgrade the parts in my speaker and have one question. My speaker has Zobel networks on the drivers. My speaker is a four way (mid bass drivers as we'll as midrange) so I have four caps and four resistors in my Zobel networks in total. All the resistors are inexpensive sand cast types. All the caps are also inexpensive Solen Fast Caps. The builder and others sure think these have no impact on the sound and should be left alone. I read the comments above on Zobel Networks and want to open up this topic again.

The crossover is said to be a simple first order type so outside of these multiple Zobel networks I have one cap on the tweeter and one on the midrange drivers. I will change these out for sure.

Question, will upgrading the sand cast resisters to Mills MRA and caps to something better like Jupiter Flat or Mundorf, or Obbilgatto in the Zobel networks have any impact in sound in your opinions?
theaudiotweak
2,801 posts
 
The weakest link is the worst part. The largest difference in a rebuild in my Dunlavy speakers many years ago was replacing the 10 cent sand cast resistors with bridges constructed of several Vishay .8watt metal film type at each location. The difference was staggering. If signal goes thru it..then consider it's replacement. As far as ground is concerned, energy is always in search of ground so its always in the signal path. I was told by Mr.Dunlavy any of this would make zero difference in his or any other speaker. The result for me was huge. Tom
vn101606
73 posts
 
Salelectric, others,

As is turns out, the elements in parallel are more than Zobel networks in some cases they are a filter, so the XO is 1st order up to a point and a 3rd other after a certain frequency. So probably worth upgrading all caps and inductors that are in parallel. Deciding whether to go with VSF-cu/wpio (US$3,358.5) for the set, VSF-cu Black/wpio (US$4483.80) or CAST-cu (US$6402.04).

What is the recommended cotton (or other material) sleaves to use to protect the leads of the Duelund components of the crossover? Where do I buy them?

Thanks.
rodman99999
6,170 posts
 
(http://www.partsconnexion.com/tubing_cotton.html) (http://www.partsconnexion.com/capacitor_film_duelund_main.html) (http://www.partsconnexion.com/ind_duel_main.html) (http://percyaudio.com/Catalog.pdf) Good places to shop!
vn101606
73 posts
 
Hello Rodman (thanks), Saletric, Theaudiotweak, Volleyguy,

At partsconnexion, the cotton tubbing for the Duelund components would be:

http://www.partsconnexion.com/product1178.html

Is this right? Or another one? Thanks!
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