don't know how Yamaholic searched but I google image searched CCCP Woofer and the ones in post 2 showed up on the first page of images. They were in this AK thread from earlier this year (not much more info though) http://audiokarma.org/forums/showthread.php?t=360040
Model 10GD30:
Frequency resp: 63-5000 Hz
86 db/w/m
THD at full power (freq over 1000 hz) - 3%
THD at full power (freq under 1000 hz) - 6%
Nominal power - 3 Watt
Max power - 30 watt
8 Ohm
Fs: 23 Hz
Weight 2.1 Kg
Recommended enclosure volume: 20 L
Lomo?
I don't think so. Lomo is actually stands for "Leningrad optical and mechanical company". Yes, they made cameras, but I don't remember them making speaker drivers.
Lomo? May be. I don't know. That bunch of drivers with xAxx markings were intended not for consumer speakers, but rather for PA systems (clubs, movie theaters, etc). For example 4A32.
I'm seeing brz in the center of the circle. I have no idea about the b or the r but the z might be short for zavod, or factory. (B... R... Factory.) On the other hand, they may just be random letters.
Actually, now that I think about it the r could be short for radio-- and if I had to guess the b might well be a place name, but what place? Hmmm. Or, again, they may just be random letters.
I'm seeing brz in the center of the circle. I have no idea about the b or the r but the z might be short for zavod, or factory. (B... R... Factory.) On the other hand, they may just be random letters.