Cal Blacksmith Posted May 3, 2005 Share Posted May 3, 2005 Many of you will know that I bought a set of Heresy1 speakers from the thread in 2ch and that the xover was all jacked up. I will post the schematic that was given me by Orolin and photos of what was done to the xovers in the speakers. I am only showing one as they are both the same. I was just wondering if any of you expert electronic types could spot what the heck this guy was doing??? The photos show everything I know about what was done. If we can't figure it out, no big deal but I think this was the root of the bass being gone from the H1s. Quote Link to comment Share on other sites More sharing options...
Cal Blacksmith Posted May 3, 2005 Author Share Posted May 3, 2005 This is an over view of the xover with the componets unmounted from the base to show wiring. Quote Link to comment Share on other sites More sharing options...
Cal Blacksmith Posted May 3, 2005 Author Share Posted May 3, 2005 A little closer view of above. Quote Link to comment Share on other sites More sharing options...
Cal Blacksmith Posted May 3, 2005 Author Share Posted May 3, 2005 This is the label on the small choke, the large one does not have any ID at all. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted May 3, 2005 Share Posted May 3, 2005 Well the caps are stock, but he changed the coils but that is not necessarily a good thing if the values were not identical to the originals. I also think that there was only supposed to be a single coil in that network, not two. Quote Link to comment Share on other sites More sharing options...
Cal Blacksmith Posted May 3, 2005 Author Share Posted May 3, 2005 This is a view of the cap on the small choke. The other 2 caps are the origonal 2mfd motor runs that came with the speaker new. Quote Link to comment Share on other sites More sharing options...
Cal Blacksmith Posted May 3, 2005 Author Share Posted May 3, 2005 and last but not least this is the way PK said it should be. Quote Link to comment Share on other sites More sharing options...
krustyoldsarge Posted May 3, 2005 Share Posted May 3, 2005 Odd to see the inductors upgraded and the original caps left intact! I upgrade my caps first, inductors later. Quote Link to comment Share on other sites More sharing options...
Cal Blacksmith Posted May 3, 2005 Author Share Posted May 3, 2005 Well, I just spent $93.22 with Partsexpress to upgrade the caps to Audiocap ppt thetas and the inductors to erse super q's. Add gold binding posts and shipping and there you have it, nearly $50 per speaker to upgrade the and return the xovers to better than but stock design. I hope it is worth it, I could have done this a lot cheeper with lessor quality parts from my local electronic store. Like $20 total for each speaker! If this works out, I may buy the parts and re-nue and upgrade the xovers in all my speakers, that ought to be a few more $$$ Quote Link to comment Share on other sites More sharing options...
scott0527 Posted May 3, 2005 Share Posted May 3, 2005 This sounds obvious but make sure you follow that schematic correctly. Easy to mess up and do backwards. Polarity is reveresed on the tweeter and squawker. Quote Link to comment Share on other sites More sharing options...
Deang Posted May 3, 2005 Share Posted May 3, 2005 You should have just ordered some caps to replace the old cans -- and left the rest alone. Whoever did the work knew what they were doing, and obviously didn't change the caps because they liked the fact that they were Paper in Oil. The second .11mH coil with the paralleled 3uF cap is of course the P-trap, which runs in series with the squawker. It forms a narrow bandpass that kills a resonant peak at 9kHz found in many of the older K-55-V's -- you should put it back in the circuit. The big copper foil air cores for the LF section are very nice (and pricey). Overkill if anything, but I certainly wouldn't have wasted money replacing them. Quote Link to comment Share on other sites More sharing options...
scott0527 Posted May 3, 2005 Share Posted May 3, 2005 Dean, How could they know what they were doing? There is not a yellow cap to be found anywhere in that mess. scott Quote Link to comment Share on other sites More sharing options...
Deang Posted May 3, 2005 Share Posted May 3, 2005 LOL, well that's true. I guess he mostly knew what he was doing. I've been trying out some white caps lately, don't think I can tell any difference from the yellow caps. I hate it what that happens. Quote Link to comment Share on other sites More sharing options...
BEC Posted May 3, 2005 Share Posted May 3, 2005 This is probably a good place to mention our new line of "Gold" crossover caps. I think these may be pretty mellow. Bob Quote Link to comment Share on other sites More sharing options...
Randy Taylor Posted May 3, 2005 Share Posted May 3, 2005 Dean, Just wondering what kind of white caps you are trying, just wondering if they are Sonicaps? I have six of them that are waiting to go into my Heresy II crossovers. I've been waiting on some solens to come in so I can change all my caps at one time. Quote Link to comment Share on other sites More sharing options...
Deang Posted May 3, 2005 Share Posted May 3, 2005 You're a tough competitor Bob. Randy, Solen now sells film and foils in limited values. However, some of the availablle values are right where I need them: 1.5uF, 2uF, 2.2uF, 3.3uF, and 3.9uF. Since I get OEM pricing from Solen, I can get these for not much more than my OEM pricing on the Auricaps. The Auricaps, Kimbers, and Sonicaps are the best of the metallized types, but if I can get a film and foil that I like for the same price, then that's the direction I'll go. When they showed up, I was delighted to feel the same heft/feel as the Thetas. I measured six of the 2.2's I ordered, and they were all 2.19. If only Solen did that well with their metallized version. Quote Link to comment Share on other sites More sharing options...
Al Klappenberger Posted May 3, 2005 Share Posted May 3, 2005 Dean, Hve you done any comparison between the Solen film and foil caps and the Hovlands? Al K. Quote Link to comment Share on other sites More sharing options...
Randy Taylor Posted May 3, 2005 Share Posted May 3, 2005 Dean, What are the voltages of the new Solen caps, this is the first I have heard of the new white Solens. Quote Link to comment Share on other sites More sharing options...
Deang Posted May 4, 2005 Share Posted May 4, 2005 .010µF, 1200Vdc, Tol. ±3% .022µF to 1.0µF, 630Vdc, Tol. ±3% 1.5µF & 2.0µF, 400Vdc, Tol. ±3% 2.2µF, 250Vdc, Tol. ±3% 2.7µF, 3.3µF & 3.9µF, 150Vdc, Tol. ±3% 4.7µF, 100Vdc, Tol. ±3% Yes Al, I've compared them very closely. If I lay them right next to each other, one is definitely white, and the other one is definitely yellow -- no question about it. C'mon, don't we know by now that these things all sound the same! A week of cap comparisons with my Heresy's just left me with a big headache. There were differences, but be darned if I can describe them. The important thing I discovered was that everything I used sounded good, and the minute shifts in signature weren't anything to get worked up over. When I was positive I heard differences, it was only at the higher SPLs (upper 90's). The only cap that didn't go strident on me was the PPT Theta. Incidently, the listening tests were done using J. Albright's Heresy mod with the 21uF high pass to the squawker, 3.0uF to the tweeter, 10 ohm swamping resistor on the autoformer, and using taps 1 and 2. The caps were the film and foil Thetas, and the following metallized types: Auricaps, Solens, Kimbers, Daytons, and the GE motor runs -- which I could only use on the tweeter. I ended up doing some mixing and matching too, and I'm pretty sure I never did hear a difference regardless of what I used for the primary input cap. Quote Link to comment Share on other sites More sharing options...
Al Klappenberger Posted May 4, 2005 Share Posted May 4, 2005 Dean, Ok.. I was hoping you did some instrument readings. I have my doubts about audability differences too. I'm really only concerned with ESR, D or Q numbers. Al K. Quote Link to comment Share on other sites More sharing options...
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