crossover capacitor

  1. S

    Realistic Nova-15 Recap

    Hi, I scored on some Realistic Minimus 26 in mint condition, the sound output is amazing, mids and lows sound crisp, a bass is punchy enough for yard sale find... This inspired me to buy a pair of Realistic Nova-15, I have done my research on RS's Realistic line and I love the vintage vibe...
  2. turnitup

    Crossover - Polarized vs Non polarized Caps

    I’m working on some 60’s University speakers and need to order some new crossover caps. Normally I replace all of the caps with poly caps, but this beast has a 200uf and 250uf cap in it and I’m not going to spend $300 to replace these with polys. Both of these caps are polarized, which I...
  3. davstev

    Minimus 7w : 4 ohm replacement speakers / crossovers

    Hi all, I have a nice pair of Minimus 7w’s that weren’t working, and I also happened upon a nice pair of replacement speakers for cheap. The replacements are a perfect fit and look great too. The new woofers are 4 ohm instead of the original 8 ohm, for which the existing crossovers were...
  4. K

    Alexis Monitor Two Crossovers - Need Advice

    Alesis Monitor Two's. Im such a goof... Sorry. Hi Everyone! First post here. To sum up - I have 3 pairs of Monitor Two's ( long Story ) but only one set works correctly. These are used in a studio setting paired with a factory refurbished RA500. I have NEVER heard speakers "resolve" like...
  5. N

    The Fisher XP44 crossover cap reading

    Hi. I'm going to replace the crossover caps of a couple old The Fisher XP44 I bought. https://www.radiomuseum.org/r/fisher_two_way_speaker_system_xp_44.html I'm used to read cap values but these make me doubt. It says: 4 MF 25 VNP I guess the "25 VPN" is for 25 volts non-polarized. You...
  6. M

    Resistors in Sansui Cross over

    Hello, I’ve learned a lot on this forum and this is my first post. I have some Sansui SP-3500 and SP-2500 speakers I’m restoring. I have recapped them based on a posting I found here and had the woofers re-foamed by MillerSound. The one thing I haven’t done is replace the resistors. I can’t...
  7. E

    Thinking and then re-thing recapping Infinity RS III crossovers

    I'm just getting started with a repair of a pair of Infinity RS IIIs. I have not tested the cross-overs yet with a signal generator and o'scope. However, I am expecting I'll need a re-cap of the crossovers. With this in mind, I did a cursory search of replacement capacitors and did not find...
  8. a_mozart

    Recapping L100A’s

    I’m going to be recapping the cross overs on my JBL L100A speakers, that I inherited from my father, who bought them new a year before I was born. My question is on the new capacitors, The L100A is spec’d with a 8µF cap I was only able to find a 8.2µF cap as a replacement. How big of difference...
  9. turnitup

    KLH 6 - 3 Wire Crossover Cap?

    Just bought a sweet little pair of vintage KLH 6's. Need to reseal the woofer surrounds and dust caps, and replace the caps. Ran into an interesting crossover cap that I need some advice on. It's a 2uf cap with one wire going in, and 2 wires going out. It's marked 2+2uf. Can I replace it with...
  10. seifreit

    Technical Sheet accuracy(or lack there of?)

    OK, so here is the question. In your experience, how accurate are the Technical Sheets from Infinity? Can it be assumed that the Technical Sheets reflect the latest production revision? Here is why I ask. I have now recapped three sets of the vintage Infinitys (RS5B, RSIIIB and Kappa 6). In...
  11. T

    BOSE 601 Serie I , Crossover replacement.

    Hi, I got a pair of Bose 601 Series I speakers from 1977 that havent been used for more than 20 years. I've taken the speakers to a technical service to restore the foam to all the woofers and tweeters and he told me it would really improve the sound to change the crossover for one new...
  12. dangerdandan

    JBL L1 - Dull Highs

    Hi yall, Just bought a used pair of JBL L1s that I was super excited about. Read great reviews. They are in very good shape. Bass is outstanding, no reason to have a sub (especially in an apartment). But on the high end, the treble feels like it doesn't have enough "structure" sounding a...
  13. OldSubSailor

    Good cap source for the cross overs in original Advents

    Hello to all again.... I got some great, helpful feedback from my request for guidance on re-foaming some original large Advents - thanks to all that took the time to reply! Now, same project, different question. I bought these speakers new in 1973 so I KNOW the cross overs are original...
  14. JayPare

    BIC Venturi Formula 4 recap and restoration

    I'm looking to give a second life to a pair of BIC Venturi Formula 4 that I got in a bundle with a TT and 2 stereos receiver. I read on some forums (including this one) that the first thing to do with those is to recap the crossover. Therefore, I'm wonder which on I need to replace. I'm...
  15. redpackman

    AR 3a Crossover - What difference would 180uf vs 150uf make?

    I'm in the process of restoring a nice pair of AR-3a's. This is the second set I've done and they're really turning out nice. I sent away for some new caps for the crossover. The crossover requires a 6 uf, 50 uf and 150 uf cap. The supplier sent all six and before I put them in I tested them...
  16. Grid

    I don't think I Need to Replace the Crossover Capacitors, Do you?

    I guess it wouldn't hurt to just do it. But the crossover pot seems to be fully working, from very dark to full highs. Would you still change the caps? The speakers are probably close to 50 years old. Utah 12" 3-way acoustic suspension with horns. Model A-100, 36 watts max. I already know they...
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