Bozak???

[Skoda_101]

I have recently recieved a Bozac cma-1-120 amplifier.
I'am wondering the power it is capable of but can't seem to find the spec's or the makers web site(wish to aquire manual feature's anything) any help in any direction would be extremly helpful

 

[rcavictim]

I thought Bozak only offered speakers. Sure that isn't a Bogen amp?

 

[eLarson]

Bozak is credited with creating the first DJ mixer in the CMA 10-2DL.

[Edit]: Here WAS a linkn to a picture of it. It seems to be down now: http://www.mickmusicpage.net/bozak_dj_mixer.htm

Sounds like it is part of the same overall series. Maybe try the Pro Audio forum, too?

 

[Curmudgeon]

The Bozak information is up on Mick's Music Page. Click on Micks Music Page to enter, then the Bozak Button, and finally, if needed, English. Interesting, I never knew R.T.B. made electronics. Back in the distant day, (pre AR/KLH) I thought the big Bozak speakers were the best I'd ever heard.

 

[rcavictim]

Interesting, I never knew R.T.B. made electronics. Back in the distant day, (pre AR/KLH) I thought the big Bozak speakers were the best I'd ever heard.

Yeah, I think amongst Rudy B., James L. and Paul K. with mention also to Hartley and Stephens they had the market for good speaker sound pretty much covered. Oh, yeah, there was also this robot named ElectroVoice.


I have an authentic vintage 60's pair of Bozak B300's or 301's (not sure) and they are very efficient. Sound very good on a small tube amp.

 

[pgfdzippymay]

bozak cma 1-120

Bozak cma 1-120 amplifier states 120 watt output mono unit. A solid state unit with 70.7 v, 8 ohm, or 4 ohm (and common) speaker outputs. Quit heavy and rarely seen on the market. I have a set that needs a little work.

 

[Skoda_101]

By work you mean restoration yes the amp is a tank at 3U high 30lbs+ for one channel at 120watts. It has a unique sound to go with it too. Would you happen to have a schematic? I searched, but have came up empty handed or "not that model sir, sorry"

Best regards
Skoda

 

[d3imlay]

The Bozak mixer was an all discrete unit with plug in boards for mic & phono. UREI copied the same front panel and design concept using TLO7X's and NE55XX in the late 70's. Metal films and polystyrenes in the RIAA. It was a really nice mixer in it's day. I still have the Bozak that I use in a small PA for my son's baseball team and tailgate parties.

 

[pgfdzippymay]

bozak cma 1-120

I do not have a schematic for these babies. I wish I could find one. If you or anyone out there comes across one, please let me know. When I fire the amps up, I'll let you know.

 

[Curmudgeon]

Re: bozak cma 1-120

When I fire the amps up, I'll let you know.

Would you care to rephrase that?

 

[pgfdzippymay]

Bozak cma 1-120

I listened to the Bozak cma 1-120 amps and they sound great. Pre-amp: Threshold SL 10; Speakers: Dahlquist DQ 10; Source: Phillips SACD 1000.

 

[Bostown]

12 years later .. here are some details as found on the web
I happened to be looking up data myself . I have a pair sitting on a shelf.

Based on some info from a Studio Sound magazine dated August 1978

CMA -1 -120
Power output: 120W rms into 8 ohm.
Noise: 80 dB below rated output.
Frequency response: within 1 dB, 20 -20k Hz. Distortion: less than 0.5% thd.
Price: $500. ( in 2018 that's roughly $1,891.63)

 

[pgfdzippymay]

Thanks Bostown. My CMA -1 -120 units perform well to this day. I may have them inspected and serviced sometime next year at a tech shop in Baltimore. Have any future plans for your units?

 

[Bostown]

Thanks Bostown. My CMA -1 -120 units perform well to this day. I may have them inspected and serviced sometime next year at a tech shop in Baltimore. Have any future plans for your units?

The (3) Bozak CMA 1-120 amps are still here. I've tested them and thankfully they all work but I haven't done much more with them so far. I have quite a few amps in queue for servicing/restoration before I address the Bozak units, but I do intend on having them back up and running as a part of one my systems.

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