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Diamonds&Rust

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Posts posted by Diamonds&Rust

  1. I've searched high and low and after downloading all the schematics I could find it looks like I need 1 x 1.5 ohm @ 22 watt and 1 x 2.5 ohm @ 22 watt resistors to make this upgrade? I'm no electrician so maybe I'm missing something here but IF these are the correct resistors they seem awful hard to find!

    You don't have to get the wattage (power handling) exactly right. Newark sells a 1.5Ohm 55w resistor for about $12 (Ohmite brand, expensive). Once I found that one I didn't "shop" for you - I just wanted to be sure someone was making resistors in that range - so I have no clue if there is also a 2.5 Ohm version, but anything from 20-55w should be fine.

    If you have no luck, don't give-up hope. Come back and report that you've had no luck.

    Bret

  2. I gave these away to a friend only to get them back some months later (too big, low waf). In my previous testing with my McIntosh MC7300 amp I found their bass to of the one-note variety, though a powerful note it was. Now returned to the roost, they ended up in my family room HT system powered by a new 100wpc Panasonic class D HT amp. And lo and behold.. multi-note bass at last.

    Strange, isn't it?

    The room, the electronics, the... everything.

    No wonder we can't just "settle" on something and be done with it.

    I've been *very* surprised by my little Panasonic class D receiver every time I've asked it to drive anything other than AR 12" woofers.

  3. ...another addition to the horror cabinet.

    A lot of those old Callins belong in a cabinet of horror.

    It's all part of a vast left-wing, liberal Massachusetts' conspiracy to slowly ruin the expensive speakers of the vast right-wing conspirators, who, being conservative, conserve things for long periods of time. There's some Cabot / Lodge / Kennedy-thing going on... skimping on bridge widths and not-watering the booze... It isn't pretty.

    Thanks for reminding us once again that those red-capped black tubular things don't even rate a decent burial.

  4. BTW, did you measure the before and after treatment on box Fc? That's really the bottom line. If the surround was indeed sealed better, the improved seal should have lowered the Fc a bit.

    Why would you say Fc should have dropped? If I ported the speaker would Fc necessarily rise? It's a real question, not a challenge.

    What it certainly should improve is power-handling and distortion. Ought to make the roll-off more smooth, too.

    BTW - you'll see my "handle" changed. I could no longer get to my old mail address. Sorry about that, folks. I couldn't do a password recovery, couldn't reset an account I couldn't get into. I didn't want to bug Mark.

    Besides, the new "handle" kinda describes my new speaker situation.

    Bret

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