Bozak Audio Lab Concert Grand B-410 - AMAZING CONDITION!

Classic Vintage Loudspeaker Late 60’s/Early 70’s

These speakers are in amazing shape and sound great!

Original box and packing are not available.

Local pickup only

Matching Left and Right serial numbers.

Includes 400Hz electronic bi-amp filter box - case has seen some wear- see pix

Rudy T. Bozak (1910–1983) was a hi-fi pioneer famous for his loudspeaker designs.

"Ever since its introduction in 1951, this magnificent 14-speaker system has remained unmatched for its ability to accurately re-create any sound or combinations of sounds across the entire music spec­trum. The Concert Grand is the supreme achievement in the faithful recreation of sound. Each system contains 4 8-ohm B-199A bass speakers, 2 16-ohm B-209B midrange speakers, 4 B-200Y treble pairs, and an N-104 cross­over network installed in a rigidly constructed, heavily damped 16 cubic foot infinite baffle. The speaker panel and front half of the sides, top and bottom of the cabinet are 1 ½“ thick for extra rigidity. The midrange speakers are completely isolated from the woofer compartment."

The Model B-410, which has its treble array at the side, is furnished in mirror-image pairs with left and right hand versions to assure balance and afford a maximum of flexibility in stereo system setup.

Specs: Three-way, floorstanding loudspeaker with sealed-box woofer loading. Drive-units: eight 2" B-200Y Dual Treble aluminum-diaphragm tweeters, two 5¼" B-209B aluminum-cone midrange units, four 12" B-199A variable-density (pulp made from lambs’ wool and shredded paper) cone woofers. Crossover: N-104 LC network. Crossover frequencies: 400Hz, 2.5kHz. Crossover slopes: 6dB/octave, first-order. Frequency range: 28Hz–20kHz. Nominal impedance: 8 ohms. Dimensions: 52" (1333mm) H by 36" (925mm) W by 19" (485mm) D.

Note: Weight: 225 lbs (102kg)! each

See Stereophile Magazine’s re-look at these in 2005 here.

These are on display and ready to be auditioned in our showroom. If you are in the Chicagoland area, please come by and take a look and listen.

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Local pickup customers and Illinois residents are subject to Chicago sales tax (10.25%).

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Thanks for looking!