Building bipoles

So I spent the afternoon hacking another couple of pairs of Krix cinema speakers, turning them into bipoles for my buddy's home theater. I built a center channel out of another pair of these back in December.
https://forum.polkaudio.com/discussion/184503/building-a-center-channel-with-sda-srs-styling-and-crossover-questions#latest

I’ve always used plain old wood glue on projects like this, but I was wondering if anyone who has built speakers could recommend better glue, like what polk used on the vintage cabinets? That stuff is tough! Any suggestions would be appreciated! Thanks in advance.
Dissembled the original cabinets carefully, trimmed to fit the new form factor.
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First try was shallower. Had to go to a 45 deg to maintain clearance for the drivers and ports inside the new cabs.
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Dry fitting the final form factor:
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Current Collection:
Monitor 4a (Peerless), Monitor 4b (Peerless), Monitor 5a (Peerless), Monitor 5b (SL2000), Monitor 7b (Peerless), Modified Monitor 7c’s (194’s, Dynamat, Sonicaps, Mills, H-nuts), SDA CRS+ (SL2000), RTA12c (194's), SDA SRS 2 (SL2000)

Repair pile: SRS 3.1TL (198’s), RTA 11T's, (1) lonely RTA 11TL to become a center channel... someday...

Pairs that have passed through:
Monitor 5b (SL1000), Monitor 10a (Peerless), Monitor 10c (3x pair), RTA8, RTA8TL, SDA2, SDA2a, SDA1b, SDA SRS2

...and more to come, it’s a sickness.

Comments

  • VR3VR3 Posts: 23,478
    Looks good, simple wood glue is pretty strong
    - Not Tom

    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • xschopxschop Posts: 1,089
    I've used Liquid Nails when adding extra bracing to some cabinets.... Takes a little longer to fully cure, but forget about trying to remove or reset it.
    I always enjoy watching your build threads Jay.
  • JayMXJayMX Posts: 241
    Getting closer on these. :)
    Kinda excited to see how they sound and work out. Concerned that the bi-poles may have more driver than volume. But they’re surrounds so we’ll roll em off a little high ;)
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    bmzwec38z3zi.jpeg
    g73u2kzmdxn4.jpeg
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    1qoabohegm5a.jpeg
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    745h5k57yuy1.jpeg
    n1nqdvd618gi.jpeg
    4p8857w0nz9k.jpeg
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    dsmsmjezea8y.jpeg
    Current Collection:
    Monitor 4a (Peerless), Monitor 4b (Peerless), Monitor 5a (Peerless), Monitor 5b (SL2000), Monitor 7b (Peerless), Modified Monitor 7c’s (194’s, Dynamat, Sonicaps, Mills, H-nuts), SDA CRS+ (SL2000), RTA12c (194's), SDA SRS 2 (SL2000)

    Repair pile: SRS 3.1TL (198’s), RTA 11T's, (1) lonely RTA 11TL to become a center channel... someday...

    Pairs that have passed through:
    Monitor 5b (SL1000), Monitor 10a (Peerless), Monitor 10c (3x pair), RTA8, RTA8TL, SDA2, SDA2a, SDA1b, SDA SRS2

    ...and more to come, it’s a sickness.
  • DSkipDSkip Posts: 16,209
    Not a lot of responses here but I for one am enjoying this journey you are on. They are looking awesome!
  • JayMXJayMX Posts: 241
    Thanks @DSkip, it’s all good! Fun way to spend some time. Learned on this project that working with MDF and veneer is much easier than solid hardwood. The bipole endcaps are solid oak and I ruined two 1/2” boards getting them right. I built top and bottom caps out of solid oak for the bookshelf speakers (will be rear surrounds) I ruined two of them milling and trimming them. Very frustrating. So the tops are now MDF with oak veneer. Lessons learned and the woodwork is pretty much done now. Bookshelf cabinets’ cloth covered side panels and grille cloth will be completed tomorrow. Need a little more stain and poly on the cabinets and this set will be done!
    Current Collection:
    Monitor 4a (Peerless), Monitor 4b (Peerless), Monitor 5a (Peerless), Monitor 5b (SL2000), Monitor 7b (Peerless), Modified Monitor 7c’s (194’s, Dynamat, Sonicaps, Mills, H-nuts), SDA CRS+ (SL2000), RTA12c (194's), SDA SRS 2 (SL2000)

    Repair pile: SRS 3.1TL (198’s), RTA 11T's, (1) lonely RTA 11TL to become a center channel... someday...

    Pairs that have passed through:
    Monitor 5b (SL1000), Monitor 10a (Peerless), Monitor 10c (3x pair), RTA8, RTA8TL, SDA2, SDA2a, SDA1b, SDA SRS2

    ...and more to come, it’s a sickness.
  • Mike ReeterMike Reeter Posts: 3,523
    The Cabs look great, VERY nice work!
    SDA SRS 2.3TL's/SDA SRS 3.1TL's/SDA CRS+4.1TL's and some other stuff
  • JayMXJayMX Posts: 241
    edited May 19
    Just need to redo grille cloth and wipe on a little poly and I’ll be done with these suckers!
    The bipoles sound surprisingly good. Experimented with wiring the crossovers out of phase di-pole) and that did bad things to the sound. I’ll have to see what sounds best in room where they’re going to be installed.
    pucsnflkfagx.jpeg
    0fd6zbd9es7u.jpeg
    qk76rwr6v3vl.jpeg
    Current Collection:
    Monitor 4a (Peerless), Monitor 4b (Peerless), Monitor 5a (Peerless), Monitor 5b (SL2000), Monitor 7b (Peerless), Modified Monitor 7c’s (194’s, Dynamat, Sonicaps, Mills, H-nuts), SDA CRS+ (SL2000), RTA12c (194's), SDA SRS 2 (SL2000)

    Repair pile: SRS 3.1TL (198’s), RTA 11T's, (1) lonely RTA 11TL to become a center channel... someday...

    Pairs that have passed through:
    Monitor 5b (SL1000), Monitor 10a (Peerless), Monitor 10c (3x pair), RTA8, RTA8TL, SDA2, SDA2a, SDA1b, SDA SRS2

    ...and more to come, it’s a sickness.
  • VR3VR3 Posts: 23,478
    looks great!!!
    - Not Tom

    Vr3Mods.com ///// Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
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