Pölk Monitor 7A Driver

FrançoisD
FrançoisD Posts: 2
in Vintage Speakers
I am the proud owner of two pairs of 7a's. First pair for $20 in garage sale. Loved the sound but did not know the Peerless tweeters were missing. Bought a second pair with Peerless tweeters. Wow what a difference. One the speakers is not working and wanted info on the driver I have no Polk stamp could they be the MW6500 or aftermarket? I bought a pair of monitor 4 to recuperate the Peerless and put them in my monitor 7. The drivers in the monitor 4 are Polks MW6502, can they replace a MW 6500? I hear that the MW6500 is 8 ohs and the MW6502 is 4ohs. The answer will help to decide if I keep speaker for parts.
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Comments

  • pitdogg2
    pitdogg2 Posts: 26,915
    edited July 7
    Picture of the front and back of the driver in question would help tremendously.
    I'm not 100% but 95% sure the 7a would have had the mw6500 driver.
    Post edited by pitdogg2 on
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  • FrançoisD
    FrançoisD Posts: 2
    Here are pics front and back
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  • pitdogg2
    pitdogg2 Posts: 26,915
    edited July 8
    Definitely MW6500!
    They're two types; silver basket with front paper gasket and black basket without the paper gasket.
    None of the Polk drivers came with the gasket after the silver basket days.
    Your best bet for spares will be eBay.
    https://www.ebay.com/itm/236144972354?
    https://www.ebay.com/itm/167625085834?
    Look closely at the rubber surrounds for any tears or cracks. Ask questions about rips, cracks or tears.
    I cannot see that closely on my phone
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  • Gardenstater
    Gardenstater Posts: 4,718
    Yes, definitely MW6500 in 7, 7A, and 7B.

    That is interesting that your M4s you found had a MW6502 paired with the Peerless. If they came from Polk that way, it is the first time I've heard of it. The Peerless M4 were 8 ohms impedance afaik and, as you say, the MW6502 is 4 ohms. Can you verify that the Peerless in that one were not the 4 ohm version, which I have not heard of Polk using, but who knows?
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
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