Monitor 7B Question

stogie
stogie Posts: 230
in Vintage Speakers
The PR has the gray paper/cardboard ring and the MW does not. Wood this indicate that one or the other has been replaced? Or is this a way Polk may have put this speaker together?4ipcpgjsjkkk.jpg
Speakers: Polk SDA-SRS xovers rebuilt by David, RDO194's, Dynamat, BH5, glued magnets, new cloth, custom aluminum terminal plates with Cardas posts and Speakon interconnect
Speaker Cables, Jumpers & Interconnect: DIY Douglas Connection
Power Amp: Sunfire Architect's Choice Series II
Preamp: Adcom GFP-750
SACD/CD: Oppo BDP-95
Tuner: Sansui TU-717
TT: Technics SL-MA1
Phono Pre: Emotiva XPS-1
Music Server: Mac Mini w/JRiver - iPad w/JRemote
DAC: Eastern Electric MiniMax Plus
Other Polks: SDA: 1A, 1C, 2B, CRS+ / Monitor: 10A, 5jr, 4 / RT5
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Comments

  • nspindel
    nspindel Posts: 5,343
    I believe those are 7A's, they have the peerless tweeter.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • cnh
    cnh Posts: 13,284
    I suppose that's possible. You could pull the driver and post a shot of the back here. Then any number of members could chime in.

    Till then, here is a shot from the Polk archives of what I think they should look like (someone correct me if I am wrong).

    That is a Polk mid in any case. But the question is, is it the right one?

    aqk3o48sr17o.jpg
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • nspindel
    nspindel Posts: 5,343
    The driver should be an MW-6502. Pull it and check the part number. The PR on the 7A definitely had that metal ring.
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • nspindel
    nspindel Posts: 5,343
    Although.... If I zoom in close on your photo, I'm noticing a gap between the tweeter cutouts in the cabinets and the Peerless tweeters. The SL-2000 that would have been in the 7B is slightly larger than the Peerless, so it is possible that those are 7B's and someone replaced the SL-2000 with peerless. I'll let others opine here.....
    Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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  • stogie
    stogie Posts: 230
    They are 100 miles from me. Thinking about buying but didn't want to waste a trip.
    Speakers: Polk SDA-SRS xovers rebuilt by David, RDO194's, Dynamat, BH5, glued magnets, new cloth, custom aluminum terminal plates with Cardas posts and Speakon interconnect
    Speaker Cables, Jumpers & Interconnect: DIY Douglas Connection
    Power Amp: Sunfire Architect's Choice Series II
    Preamp: Adcom GFP-750
    SACD/CD: Oppo BDP-95
    Tuner: Sansui TU-717
    TT: Technics SL-MA1
    Phono Pre: Emotiva XPS-1
    Music Server: Mac Mini w/JRiver - iPad w/JRemote
    DAC: Eastern Electric MiniMax Plus
    Other Polks: SDA: 1A, 1C, 2B, CRS+ / Monitor: 10A, 5jr, 4 / RT5
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  • Easy Runnin
    Easy Runnin Posts: 501
    I have a pair that looks similar but I replaced the MWs. Just make sure they are 6502s.

    One time I looked at a pair of 10s and they had 3 different MW. Thee only way to know is to pull them.
    HT- Samsung PN50B860/Integra DTR 30.3/Rt55 Fronts
    Rt35i Surrounds/Cs1000p Center/SVS BP1000 Sub
    2CH - B&K MC-101 pre/B&K EX-442 amp/NAD 2400 amp
    Polk SDA1C, Polk Monitor 7, New Large Advents and Polk RTA 8T
    BR - Yamaha CR800/Polk monitor 5
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  • westmassguy
    westmassguy Posts: 6,850
    Some early 5s and 7s came with 8 ohm MW6500s
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
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  • stogie
    stogie Posts: 230
    My 1980 Monitor 5's came with MW6500's.
    Speakers: Polk SDA-SRS xovers rebuilt by David, RDO194's, Dynamat, BH5, glued magnets, new cloth, custom aluminum terminal plates with Cardas posts and Speakon interconnect
    Speaker Cables, Jumpers & Interconnect: DIY Douglas Connection
    Power Amp: Sunfire Architect's Choice Series II
    Preamp: Adcom GFP-750
    SACD/CD: Oppo BDP-95
    Tuner: Sansui TU-717
    TT: Technics SL-MA1
    Phono Pre: Emotiva XPS-1
    Music Server: Mac Mini w/JRiver - iPad w/JRemote
    DAC: Eastern Electric MiniMax Plus
    Other Polks: SDA: 1A, 1C, 2B, CRS+ / Monitor: 10A, 5jr, 4 / RT5
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