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Orgy of Capacitors: The Cap Thread - Page 30

post #436 of 441

Its a slippery slope! 

 

Poor speakers.

 


Edited by JamieMcC - 3/3/14 at 9:13am
post #437 of 441

anyone here having tried the WIMA DC-LINK capacitors?

 

made to replace electrolyte capacitors f.e. in power supplies and other applications, MKP foil capacitors, available up to 4920µF.

 

this one f.e. is specified as follows:

 

DC-LINK MKP 6

- 900 µF,

- 900 VDC,

- 85/86 x 210 mm,

- ±10 %,

- 60 A,

- 1,5 mOhm

- Low ESR

 

Price is about 70 Euros.

post #438 of 441

Crack Cap rolling update

 

Cascade bypass of JFX 100uf Premium film audio coupling capacitors

 

Bypassed with

 

Russian K75-10 Hybrid Paper and Polyethylene Terephthalate in Oil (Mylar)

 

Bypassed with

 

Russian Teflon K72P6 Teflon

 

Beyer T1 and TS 5998 used for listening

 

I find myself enjoying the pairing of these capacitors they sound much better than the odd look they have shoehorned into the enclosure and held together with cable ties might suggest.

 

It has taken over 200hrs for the combination to settle down and a more coherent and refined sound to emerge.

 

With the Crack I find the K75-10 really very musical, fluid and engaging, PRaT is good its has a slightly dark flavour at lower volumes.  John L mentions  “jest and pop” in the presentation in his capacitor review ( http://www.head-fi.org/t/284863/orgy-of-capacitors-the-cap-thread) this comes through strongly and is very much akin to listening to vinyl on my Rega Planner 3, Just instant tow tapping head nodding enjoyment. Its a very engaging sound. 

 

Here’s the thing with the K75-10 I find it very musical the downside is the roll off. The top end has lost a lot of its crispness, gone is the metallic ting on triangles and cymbals which have now turned to softer schings instead of the crisp detailed ting, the bass is also a little loose and bloomy.

 

So I tried adding a K72P6 Teflon bypass to the K75-10 things started to improve while still keeping much of the K75-10 character.  With over 200hrs burn in the K72P6 Teflon influence on the top end has settled down and it makes for a much more coherent and refined sound, which the K75-10 lacked on its own.

 

Details and resolution are vastly improved while still keeping some of the zest and pop which I found engaging.

 

The aspect I have found most pleasing with this combination is the vocal presentation, both male and female voices come across beautifully with nice tone and texture and enough detail in the resolution to pick up the little nuances in word formation and expression.

 

The film and Teflon bypass capacitor combinations are throwing up some surprises and these Russian ex-military capacitors I have been experimenting with cost about the same as a cup of coffee each.

 

This is a combination that I could happily listen to for a long time.

 

pics

 

 

post #439 of 441
Quote:
Originally Posted by brunk View Post
 

Are you going to make your Crack have 'blue butt cheeks' :tongue: I love that beast he made lol.


 uh oh low hanging fruit warning, blue to boot!

 

   

post #440 of 441
Quote:
Originally Posted by lehmanhill View Post
 

I have had the chance to play with the Rike S-Caps in both a 1 uF, DC blocking cap and a 6.8 uF tweeter crossover cap.  Frankly, they are really good, one the best caps I have auditioned, but also not at all what I expected from a PIO.  I'm a little hopeful that Jon L will be interested enough to try them.  It would be great to have a review from such a grand database as Jon's.

 

I say that they are unexpected.  Most PIO's (at least in my experience) have a lush, even colored mid-range and often lack a little detail and sparkle on top.  Now I haven't tried any of the really good and expensive caps, so my comparisons are to lesser, but still good caps.  Acting as a DC blocking cap at the input of my power amp, the Rike S-cap excels at clarity and detail.  I think they are better for clarity than the Audyn True Copper and a Mundorf ZN that I have tried.  They stand out as clearly better than a Jantzen Superior Z or an Obbligato Premium Gold.  The later caps seem veiled and thin sounding by comparison, at least in my system.

 

Another interesting difference is that the Rike S-Cap displays more dynamic range than other caps.  You seem to hear more of the quiet details, but they remain quiet, while the loud sections of music seem louder somehow.  The combination of clarity, detail, and dynamic range result in an excellent sound stage with width, depth, and focus.

 

As for balance, the bass and mid-range are there in appropriate proportion, but perhaps a bit recessed from the higher frequencies.  Also, the mid-range seems clean and clear, but not warm or lush as you might find in a K75-10 or a Jupiter HT.  In fact, I would say that the Rike has a character similar to the K71-4 Russian Polystyrene, just better than the K71.  With a system that is already warm sounding, the Rike might be a perfect choice.  I guess that makes sense as it was developed by a company that designs tube equipment. 

 

When I tried the Rike in the tweeter section of a passive crossover, I found a similar effect, clarity, focus, and dynamic range.  Choosing something warmer for the mid-bass crossover section was a really nice combination. 

 

One of the things that I really like about the Rike is that tone is very natural.  Polypropylene seems to give everything a slight plastic tone, polystyrene is fairly neutral but maybe a little harsh, and teflon, at least the Russian FT teflons, are a little slippery or oily in tone.  To me, paper in oil caps give a nice neutral and natural tone that I like very much.  The Rike is just the best of the PIO's that I've tried because it keeps its natural sound and opens up the detail in ways that most PIOs don't.

 

Overall, if you are looking for caps in the Rike price range, they are definitely worth a listen.  That is especially true if you goal is unveiled and detailed.

Thank you for this detailed review. :smile:I use now the Rike S-Caps (0,1uF) in my DAC and I'm satisfied overall. I like the PIO sound!

 


Edited by loserica - 3/24/14 at 10:04pm
post #441 of 441

today the WIMA MKP 80µF and 550µF film capacitors for my next DIY tube amp arrived, never had thought that they were that large, this is maybe the difference between reading and finally seeing the size:

 


Edited by GermanGuy - 3/26/14 at 10:25am
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