Anyone heard of Bozak speakers?

warlocks1
warlocks1 Posts: 1,252
edited July 2004 in Speakers
Someone gave me a pretty beat up set of Bozak DMS-5500 speakers. They are very large and weigh a ton. One of the speakers is missing the tweeter. It looks like a peerless tweeter. All it says on the tweeter is made in Denmark. What tweeter are made in Denmark? I would like to find a tweeter so I can give these speakers to the neighborhood poolhose for parties. I can post of picture if that will help. Thanks
Post edited by warlocks1 on
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  • MSkeezer
    MSkeezer Posts: 1,183
    edited July 2004
    Yes, please, give us some pics. Thanks.
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  • George Grand
    George Grand Posts: 12,258
    edited July 2004
    Rudy Bozak is one of the most respected and revered names in American audio history.

    He is from the same time frame as Saul Marantz, David Hafler, Villchur & Kloss (AR, KLH, Advent), Dr. Sidney Harman, etc.

    I had a pair of his B-302 Century speakers for awhile. They were 1968 models, but his stuff went back to the late 50's. 12" infinite baffle system with 2 tweeters mounted co-axially on the woof, each facing maybe a degree or two outward. Big 6" mid too mounted above the woofer. The crossovers look like amplifiers. Like big end tables they are. I donated them to my squadron lounge about 5 years ago where they still pull duty.

    I think you have a Bozak speaker from the 80's or 90's. I'll look it up.

    His electronics were highly regarded as well. External cross-overs, surround/delay processors, amps. He was located in Connecticut. He's been located below the earth for awhile now.

    The DMS-5500 and the DMS-5500W were both manufactured from 85-88. Both 12", 3 way sealed boxes, the 5500 listed for $900, and the 5500W (the W signifying darkwood) sold for $1,140 the pair. Happy birthday. I'd get a tweeter and maybe find something else for the pool crowd.

    George Grand (of the Jersey Grands)
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  • jcaut
    jcaut Posts: 1,849
    edited July 2004
    You may be on the right track on the tweeter: Peerless is made in Denmark as are Vifa, and Scan-Speak.

    D-S-T


    Jason
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    Get a picture, I may have a tweeter for you.

    George, I've got a handful of those crossovers, and some of the big 12's with the center-mounted tweets in the garage. I think I sold all the 6" er's. GREAT stuff, I'd keep a set if I had a cab to load it in.

    I'll take a pic or two, if there is any interest.

    Cheers,
    Russ
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • jcaut
    jcaut Posts: 1,849
    edited July 2004
    if there is any interest

    Heh..heh..:)

    I'm interested in pics.



    Jason
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    Here's one rendition of the 6" woofs George speaks of. The silver 'spots' are small chips of paint that have come of the ALUMINUM CONE.

    Yeah, that's right, late 60's using an ALUMINUM CONE. Bozak was so far ahead of his time, it's almost SCARY.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • George Grand
    George Grand Posts: 12,258
    edited July 2004
    Bozak's are extremely neutral sounding speakers. Almost to the point of boring, but they are accurate I just had a brain flash. I also had a pair of Bozak "Tempo's" from the 70's. My friend Kevin has them now. That was also a 12" 3 way, but in a normal size box like an AR-3a, or Larger Advent.

    George Grand (of the Jersey Grands)
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    Mag structure. If I recall correctly, these tipped the scales at 11 lbs EACH. No paper spider either, they used a metal 'coil' instead.

    No foam to rot either. Mr. B left the bass excursion to the big 12" woofs, these are true mid-range speakers with little, and I mean LITTLE cone movement at all. I'm talking less than 1mm.

    Yes, they still worked when I parted ways with them. I'll hit the garage, and take some more, since we are getting deeper into the Bozak lesson.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • jcaut
    jcaut Posts: 1,849
    edited July 2004
    Wow.

    I see those were 16 Ohm, so they were probably in parallel.. Small excursion, 6" aluminum-cone mids....

    Must have been a real high-sensitivity design.

    And look at that heavy, cast basket on those suckers..
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    There were 8ohm versions also. Downloading woof pics now.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • George Grand
    George Grand Posts: 12,258
    edited July 2004
    I just finished about 15 minutes worth of great story about how I got the Bozaks. Polk wouldn't let me post it because it contained an image posted somewhere before here on the Polk forum. So my post is lost. I couldn't be more **** pissed.

    Good night.
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    I've had it happen to me too.

    George, I'd sure love to hear it, have a Lucky, and consider at least a condensed version, pretty please?

    Cheers,
    Russ

    Here's the monster external crossovers. Check the hand-wound inductor coils. I removed one 'cover' so you could see the array of OIL-FILLED caps.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    12" woof basket and mag structure, rare earth.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    A Tri-fecta of woofs.

    As you can see the rear have center-mounted tweeters (also aluminum). The front is the same woofer, but with the tweeter array removed.

    Unfortunately, the woofs had a pulp paper cone (woven fabric surrounds). I can imagine the cost of aluminum in the day, and the in-ability of a cloth surround being able to hold and control it were some of the deciding factors. That, and for bass, paper sounds oh so lush and rich anyway.

    The only 'rot' you will see if the rat's get to the cones. I have a couple that must have been fairly tasty. I *might* see about a recone, I haven't decided yet.

    Cheers,
    Russ
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • warlocks1
    warlocks1 Posts: 1,252
    edited July 2004
    Here are some photos. You can't tell but the cabs are pretty beat up. They were owned by some college kids.
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  • warlocks1
    warlocks1 Posts: 1,252
    edited July 2004
    Photo of tweeter. Pretty beat up but still works.
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  • warlocks1
    warlocks1 Posts: 1,252
    edited July 2004
    Phot of driver. This thing is heavy. Weighs more than the woofer.
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  • VR3
    VR3 Posts: 28,774
    edited July 2004
    That looks like a Peerless, similar to the ones Polk use to use, no?
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited July 2004
    Neat looking speaker!

    Much newer than the drivers I posted, but the similarities are still there! Amazing!

    It probably is a Peerless as you suggested in the first post, there were one or two knock off's in that time period also. Hit it with the multimeter, and see what the impedance reads.

    Cheers,
    Russ
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • jcaut
    jcaut Posts: 1,849
    edited July 2004
    I believe that is a Peerless 810665 tweeter, or at least a Peerless model very similar to that one. Russ mentioned that there were a couple of knock-off's. Unfortunately I believe that the most recent version (810665) has been discontinued.

    Those (at least the old '68 versions) truly must have been some advanced speakers back in their day!

    Thanks for the pictures.

    And, George, I'd sure like to hear that story.....
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  • gidrah
    gidrah Posts: 3,049
    edited July 2004
    Looks like a SL-1000 to me.

    Wow! Now those are some crossovers. Holy **** man. :eek:

    Screw the pool. Keep 'em. At the very least, see what you can find at a local musician store in the line of PA speakers on the cheap. I'm willing to bet you could sell the Bozaks, buy some more appropriate speakers for the pool, and pocket some money.

    Pretty please George! I'm a fan of yours too.

    Side note:
    The first time I heard Sun Ra it was through a pair of vintage Bozaks driven by a very tasty Marantz separates unit.
    Make it Funky! :)
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  • nadams
    nadams Posts: 5,877
    edited July 2004
    Those look exactly like the pair of Peerless tweets I bought to replace my SL1000's. I got them from Parts Express. $30/piece, I think. Not sure if they still sell 'em.
    Ludicrous gibs!
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