VINTAGE TECHNOLOGY ARCHIVE / AUDIO / BOZAK / B410

Bozak B410 (listed 1971–1976)

Little is documented about the Bozak B410, and the two period directory entries that survive describe what look like different speakers. The earlier record, in HiFI-Stereo (1971, p.106), lists the B410 as the same speaker as the B310B but with simulated front doors on the cabinet, priced at $880.00 - just under the matte-walnut B310B at $897.00. At that point, it reads as a furniture-front variant of Bozak's large floor-standing system.

Five years later, High Fidelity (1976, p.84) shows a substantially bigger system. Listed under the Concert Grand name as the "B-410 Classic," it was a sealed infinite-baffle design with four 12" bass drivers, two 6½" midranges, and eight 2" tweeters, crossing over at 400 Hz and 2,500 Hz. It was rated at 8 ohms, specified at 60 W minimum / 150 W maximum, claimed 28-20,000 Hz response, measured 52" H × 36" W × 19" D, and weighed 225 lbs. Two other cabinet styles were offered, and it could be wired for bi-amplification on special order. The 1976 price was $1,195.50.

No contemporary listening test turns up for either version, and nothing explains whether Bozak enlarged the B410 between those two listings or simply reused the number for a new system. The cabinet front (simulated doors versus plain) and the driver complement are the quickest clues to which of the two documented configurations a given speaker is.

Known specs (1976 "B-410 Classic" listing, per High Fidelity):