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altec 604

  1. A

    Title: Altec 604-8H – What fabric/material is the dust bib (top spider) between cone and Mantaray horn?

    Hi everyone, I have a pair of Altec 604-8H Duplex drivers. One of them is missing the fabric ring that sits between the woofer cone and the base of the Mantaray horn — the piece sometimes called "dust bib" or "top spider". I know this part is not included in any recone kit (Speaker Exchange...
    • Alkaziner
    • Thread
    • altec altec 604 altec 604-8h coaxial duplex dust bib mantaray recone top spider woofer
    • Replies: 1
    • Forum: Speakers
  2. P

    Help: 3x Altec 604, marked as 604e, showing different part numbers, need help identifying and advice

    Hello, Cross-post from diyaudio. By chance, I now own 3 Altec 604, all marked as 604e. From left to right, the first was bought separately, and the other two as a set. Now this where it gets interesting, going from left to right, once again, the first one shows: - 21184-2 cone - 391404...
    • Puf_
    • Thread
    • altec 604 altec 604e
    • Replies: 10
    • Forum: Speakers
  3. Franknfurter

    Altec 604-8G, stock crossover vs Markwart, anybody can share experiences?

    Hey mates, ..would like to get some input from users who built it. Here the Markwart design: Stock version: Greetings from Hamburg.. Frank
  4. jaaronb

    Altec Phase Plugs - Radial (Tangerine) vs. Circumferential?

    Hey folks - I happen to have a pair of Altec 604-8gs, one of which has the newer radial/"Tangerine" phase plug, and the other has the older circumferential. I DO hear a distinct difference between the two, and despite having swapped diaphragms, crossovers, R/L sides, amps, pre-amps, sources...
    • jaaronb
    • Thread
    • altec altec 604 altec lansing
    • Replies: 18
    • Forum: Speakers
  5. Dr. Humboldt

    Altec 604-8G - custom HF horn and crossover mods mystery

    Hello AK, I got a pair of Altec Model 17's from a fellow who said they were used as studio monitors by Ronnie James Dio, among others. They have a conical HF horn (installed with proper hardware) and a modified port and crossover. I haven't been able to find any information on the horn mod...
  6. ochastan

    Altec 605A vs 604C

    Hello - I own a recording studio (professional facility). I have two Altec speaker systems. A single 604C NOS and a pair of 605A in great shape which I acquired recently. All three are installed in 612 cabinets with original crossover. I'm driving all three with Fisher 70-A amp. For some...
    • ochastan
    • Thread
    • altec 604 altec 604c altec 605 altec 605a altec 612
    • Replies: 4
    • Forum: Speakers
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