Decent cheap caps for fixing / flipping speakers?

An aquaintance has a small stash of diassembled vintage monitor polks (no peerless) RTA 11 & 8 and some other speakers that are in rough shape. They might get sold as parts, but I was asked if I could maybe get some working again as a friendly favor. They may keep some for there kids too. They are interested in audio, but not really audiophiles.

All the speakers and tweeters appear to work. Some crossovers are missing caps and resistors. The cabinets are ok to rough but not damaged.

They are not worth clarity or sonicap if no one notices, and probably not worth dayton either. I'd rather not go with electrolytics, but that is what was original. IMO a cheap poly should sound better and at least last for its remaining life. Any suggestions?


  • westmassguywestmassguy Posts: 6,348
    Dayton 5% or Bennic. They're pretty much the least expensive Metalized Polypropylenes out there, that don't burn your ear drums.
    Home Theater/2 Channel:
    Front: SDA-2ATL
    Center: Custom Built
    Surrounds & Rears: Custom Built
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
    Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
    Interconnect: Furez 10/2 with SpeakONs
    ICs: Custom Furez by Douglas Connections
    Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
    Carver CT-3 Pre, Carver C-500
    Exclusive Distributor of Gimpod's Custom SDA Circuit Boards

    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • mhardy6647mhardy6647 Posts: 21,816
    A little 'bright' sounding but very good value and an improvement for any vintage monkey coffin, IME/IMO.
  • pkquatpkquat Posts: 641
    TY. As far as burning ear drums, are these MP's better sounding than Electrolytics that would come stock?
  • mhardy6647mhardy6647 Posts: 21,816
    edited July 12
    Virtually any moder non-electrolytic capacitor (film and foil, polypro, oil, etc. etc.) will sound better (smooooooother) than a nonpolarized electrolytic in a high-pass filter (at the least), IME/IMO (and FWIW, YMMV, etc.) :)

    These are nice -- li'l pricey though B)

    33722835425_cb92848f58_h.jpgDSC_7330 (2) by Mark Hardy, on Flickr

    That being said, modern, fresh NP electrolytics (which are dirt cheap) will also almost certainly sound better than four decade-old NP electrolytics in a vintage "monkey coffin" Advent, EPI or whatever loudspeaker. :)

  • pkquatpkquat Posts: 641
    Those cables and connectors though. :p
  • mhardy6647mhardy6647 Posts: 21,816
    pkquat wrote: »
    Those cables and connectors though. :p

    I am all about synergy.

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