Quick follow up on the 8251-8.
Here are the preliminary TS parameters.
BL 24 Tm
Qts 0.4
Xmax(linear) 0.75in
Xmax(peak) 1.0in
Xmax(destruction) 1.5in
Fs 30Hz
Mms 240g
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Pictured is the final prototype before production.
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Ground plane frequency response of a prototype dual 8251-8 18″ sub-woofer measured with both woofers in parallel.
Sensitivity of the prototype sub box was 105dBSPL at 40Hz when driven with a 2.2Vrms signal (1W/1m at the impedance at 40Hz).
