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Crossover Network Efficiency (dB/W/m) Frequency Response (Hz) Mounting Depth (Inch) SRQ1621S 280 6-1/2 3/4 — — Variable Angle/ Surface Mounting . . . 91 30~35k 2-1/4 SRQ6932R 450 6.9 — 1 3/8 — . . — 93 25~35k 2-15/16 SRQ1631R 280 6-1/2 — 3/4 5/16 — . . — 91 30~35k 2-1/4 SRQ6831C 350 6.8 — 3/4 5/16 — — . — 92 30~35k 2-3/8 SRQ1331R 200 5-1/4 — 3/4 5/16 — . . — 91 40~35k 1-3/4 SRQ211H 200 — 3/4 — — Variable Angle/ Surface Mounting — — . 90 2.5k~35k 3/4 SPEAKERS . SERIES 19 SRG6921R 350W MAX. 6.X9.