JAM by Duelund

Dear @alexberger :  Please read these about caps:

https://forum.audiogon.com/discussions/best-harmless-signatureless-speakers-capacitors/post?postid=1842984#1842984

https://forum.audiogon.com/discussions/best-harmless-signatureless-speakers-capacitors/post?postid=1845279#1845279

https://forum.audiogon.com/discussions/best-harmless-signatureless-speakers-capacitors/post?postid=1848015#1848015


https://forum.audiogon.com/discussions/best-harmless-signatureless-speakers-capacitors/post?postid=1858909#1858909

https://forum.audiogon.com/discussions/best-harmless-signatureless-speakers-capacitors/post?postid=1859374#1859374

Now and as I said it in that thread: WIMA caps is the industry standard and for very good reasons.

You can see the MKP 10 in almost any single audio electronics with  units in the 400 hundred dollars and in the over 50K units. It's the manufacturesr/designer best choice.

Now, are so inexpensive that you lost nothing testing in your electronics and in your speaker crossover too.
It's worth to do it and as I said are really cheap caps so you can't lost nothing and can have a very nice surprice and don't be " intimidated " for the humble Wima price against the boutique ones that in my today experiences can't performs better than the MKP 10.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R. 

Dear @grannyring : I think that step by step I will go for caps that I already know are really good as the Teflon Cu and/or Sonicap Platinum, first with the speaker tweeter crossover after that with the midrange one.

Now, I need advice on what cap is the best for  the woofer 100 uf cap and the value of the cap to by-pass it.

Can you help about?

Thank's in advance.

R.

Dear @grannyring : Yes " heavy " moded, here about:

ADS L 2030: This is a Full Range Professional Monitor that I own for many years.

These L 2030 was designed by Mike Kelly ( Aerial speakers ) and till today it match all my priorities.

It is " heavy " tweaked to do that: first it has " three hands " ( internally ) of a insulation/antivibrational treatment ( like a white paint. I can't remember the ingredients. ) from Acoustical Magic Company ( it works marvelous ) inside all the box ( a big one box: 58-5/8" ( H ) x 27-1/4" (W) x 13-1/8" (D) ).

It is internally hard wired with Silver Oval by Analysis Plus cable and KCAG by Kimber Kable.

I take out the crossover ( now is external ) and change all the parts: resistors ( Duelum. ), silver air core solid ribbon ( 5.5 cms. of pure silver. Almost 2kg. of silver in the biguest one. ) inductors ,  by-pass teflon caps, etc, etc, the speakers cables goes soldered directly to the crossover parts. This speaker crossover is hard-wired.

In reality are three separate/stand alone crossovers: one for the tweeter, one for the midrange and the other for the woofer, all these hard-wired directly to the amps ( no connectors. )

I'm only not biamp my system ( with the subs. ) but these ADS main/satellite speakers are true tri-wired in hard-wire directly to each crossover parts in the three way speaker design all the way down to the amplifier output.

I change the internal damping glass fiber by 10kg ( each one ) of long hair 100% virgin wool and change the fabric cloth of the grille for a " transparent one ".

These L 2030 have: One acoustic suspension 1" silk dome tweeter, one main acoustic suspension 2" silk dome midrange, three auxiliar acoustic suspension 2" silk dome midranges ( similar to the main midrange but with a less powerful magnet. ) and two long-excursion acoustic suspension ( sealed. ) paper 14" woofers.

These are exceptional drivers especially the tweeter/main midrange ones.

These are some manufacturer specs:

- Frecuency response: 22-20K +.- 3 db ; 18-28K +.- 5db.

-Efficiency: 95 db SPL.

- Power rating: 300 watts nominal; 1,200 peak.

Weight: 95kg.


Back external tweeters:

These ones was a spare tweeters from a Dalquihst DQM-9 that I owned and already sold.

These tweeters are 1" silk dome ( same efficiency that the front ones ) and are connected in phase with the front ones and works with his own crossover ( with by-pass Teflon cap. ) at around 7k and up and have, too, an off/on switch.


As I told you  the high pass filter is made it inside each 20.6 ML monobloks.


Probably I can use the Sonicaps Platinum or perhaps Jupiter or something else but because I'm restricted on money I need your advise about.

Thank's in advance.

R.

Dear @grannyring : Do you need additional information for I can get your expert advise?

Because I'm not a whealty person I can't go with Duelund or teflon V-caps but to something else you already know works really fine in that speaker crossover aplication.

R.

Dear @grannyring : My overall audio system/room target is to stay nearer/truer to the recording and my reference is live music but I’m far away from live music.

My speakers are a pair of old heavy tweaked ADS L2030 ( Silk dome tweeter/midrange and paper woofer. ) paired with two self powered Velodyne HGS-15 subwoofers wired in true stereo fashion. Crossover at around 80hz . The ADS crossover filter is made it directly at the 20.6 amps input due that these amps are coupled by input cap and here is where I’m using Teflon Cu V-caps along Vishay naked resistors.

I’m satisfied with what I have but you know I think that I can have even better quality level performance if I invest in better caps in the speakers crossover where everything is hard wired and seats externally to the speakers. I use pure silver ribbon inductors .

I’m not looking for a very specific atribute but " only " that puts me nearer to the recording.

Even that my system is full SS electronics does not sounds as traditional SS electronics none as tubes but more as music, recorded music with neutral tone and rhiytm along that " power/dynamics " that only live music can has. Truly emotional.

R.

Dear friends: I'm looking for advise on caps  for speaker's crossover. 

I use or used V-caps ( not the Teflon ones. ) and Sonic Craft by-passed with Teflon V-caps.

In my all SS electronics I'm using Teflon V-caps and Teflon Cu V-caps and Sonic Craft Platinum too. All these works great.

Due that Teflon V-caps are expensive and that I need 16.8uf and 4.7uf plus 100uf I would like to know which one could be the best combination for a lower price and with quality performance nearer to the Teflon V-caps.

Your advice is appreciated. Thank's in advance.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.