Jump to content

Heresy crossover question


Kriton

Recommended Posts

Kriton,

Yes, that is a Heresy I crossover. I had thought you said the 85s were Heresy II. It would have 2 2uF and one 33 uF. Is that crossover mounted on a wooden board or is it on the round cup?

Bob

Link to comment
Share on other sites

Yes, a 68 uF polypropylene cap is pretty big. But I could certainly find a way to make one fit somehow. The 33 uF cap on the E2 in the late model Heresys is a snap. There are other modern capacitors that take up less room than polypropylene if size is an issue. Of course, if PWK was still alive, I am sure he would say "It doesn't make a dime's worth of difference!" And frankly, using something other than an electrolytic to replace that particular capacitor might not make an audible difference, at least not until the electrolytic degraded sufficiently . But electrolytics are definitely time limited components. I cannot count how many electronic devices I have worked on where the culprit was an electrolytic. If I am going through a network replacing other components, I will replace any electrolytics I can where feasible.

Link to comment
Share on other sites

Kriton,

Yes, that is a Heresy I crossover. I had thought you said the 85s were

Heresy II. It would have 2 2uF and one 33 uF. Is that crossover mounted

on a wooden board or is it on the round cup? Bob

BOB,

I am sorry man, I have caps and crossovers for two pairs of these

things that I want to refresh, so I am bouncing back and forth, yes on

the H2's the crossover is on the cap...so putting that big capacitor on

there is probably not going to work?

The H1's look very simple, should be easy to swap out the three caps?

I am just trying to find which caps to use and at what values...if I

try to use say Thetas and they don;t hae the exact value that I need,

what then? Aslo, do I need to match the voltages of the old caps,

or the voltages of all the new caps, or does voltage matter at all?

Thnaks for listening to the newb, I appreciate it...

K

Link to comment
Share on other sites

The voltage rating should be at least 100 volts, but all the crossover caps you can find will be rated higher than that. On the Type E2 crossover board, you should probably have room to use any caps you want to use. On the Heresy II crossover you have to look closely at the physical size of the components.

Bob

Link to comment
Share on other sites

Peter,

My bad. The HIIs with the round input

cap were those in transition. I hadn't thought that the backs were

screw on for those. Are the woofers mounted on the back of the

motorboard then, or still front mounted like the later HIIs (like mine)?

Bruce

No woories Bruce. Sorry I was busy all day installing BEC tweeters and listening to them.

The woofers are mounted from the front. Soon I'll be buying a

Nikon D50 and will finally be able to post decent pictures. Can't

wait!

Link to comment
Share on other sites

  • 3 weeks later...

Wow,

There were several posts to this thread that have mysteriously disappeared?

Anyway, I ahve a new question, and one of my last hopefully -

How do you dtermine the polarity on a capacitor if it is not clearly

marked? I have some Solen caps here, and there is not indication

of positive or negative sides? I know I have seen some caps that

specifically specify by coloring the leads which is positive and which

is negative, or at least the direction the the capacitor should be

plced in relations to the inputs from the amp, but these don;t have nay

indicators on them at all? Can I solder them in in any fashion?

Thanks!

K

Link to comment
Share on other sites

The caps are non-polarized -- it makes no difference which way you orient them.

Solens? Why go through all the trouble of doing this and not spring for the good stuff. After you get sick of the grain, go back and put in some Kimbers.

2uF 250vdc Solen, 13mm x 25mm
2uF 250vdc Dayton, 13.5mm x 31mm
2uF 200vdc, Kimber, 17.8mm x 29.7mm

All film is not created equally. You think your RF-7's would sound the way they do if I would have loaded them up with Solens? What you are getting ready to put in your Heresys is about as good as what you paid me to yank out of your RF-7's!!

Link to comment
Share on other sites

Well damn, I thought I had asked this a while back and got no takers..

So Dean, give me a run down of what you would suggest...I had been

looking at Auricaps, Sonicaps, Kimbers, Hovland's, Solens and Daytons...

Tell mw what you think, and why man! I just need to know! If you think the Solen's crap, tell me!

I had talked to madman (in a good way) behind GR Research and he really

likes the Sonicaps, and his explanation was plausible and seemed very

good indeed, but I couldn't get the proper uf values, and I didn't want

to string caps all over the place...any suggestions?

Thanks! (This is where I start getting the value back for those

crossovers - which I can never use by the way, the preggo wife is stuck

in front of them most of the time these days!)

K

Link to comment
Share on other sites

LOL:)

Solen on the low pass, Auricaps or Kimbers in the high pass. AudioCap PPT Thetas if you can afford them. Stay away from Hovlands in these simple filters -- just too much of a good thing. If you have the green, the best sounding cap I've ever heard in my Type A's is the V-cap OIMP. Before anyone asks, no, they don't sound the same as the GE cans.

Link to comment
Share on other sites

I know I'll get tons of opinions on this, but my LS have the AL networks in them. I want to change them, but what are good options? John Albright has some ALKs he will let me borrow, and since I do use tubes on these, the constant impedance would be a good thing. But I also don't listen at high volumes, although Josh might when I'm not at home. [;)]

John has another design he is working on that I may try. My wallet is just a bit thinner after my trip, so the ALKs may be too rich for me.

Bruce

Link to comment
Share on other sites

  • 1 month later...

Here are my final "hack jobs" - the wires are a bit long, but I wanted

to use the originals with as little modification as possible...

E-2 network, what do you think?

The real question is... How do they sound?! [:)]

Link to comment
Share on other sites

Hmm...as I think I said in this thread...I am cautiously optimistic...I

think I need to live with them a bit and let them break in...I can tell

you that I am hearing some serious detail that is missing in the

identical unchanged speaker...but...I am getting a good amount fo

ringing from the squawker - but that is a different issue.

It has been interesting and somewhat fun to redo these things, but I am reserving my opinion on the crossovers for a while...

K

Link to comment
Share on other sites

  • 1 year later...

That electrolytic may say +/-10% or +/-20%, I can't remember -- but keep in mind that Klipsch probably either picked through them or asked the vendor to keep the tolerances closer to +/-5%. An electrolytic is fine in that position as long as it's not drying out -- considering the age of most of them by now it's probably a good idea to just change them out. You know Parts Express is probably only a 20 minute drive for you, right?

http://www.partsexpress.com/pe/pshowdetl.cfm?&PartNumber=027-944&DID=7

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...