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Sealed Vented Single Single Reflex Reflex Bandpass<br />
Bandpass<br />
S P L , d B<br />
1 0 0<br />
S h e f f i e l d P r o 1 2 0 0 0 . 7 5 c f S e a l e d<br />
S h e f f i e l d P r o 1 2 0 0 1 . 5 0 c f V e n t e d F b 5 5<br />
S h e f f i e l d P r o 1 2 0 0 2 . 0 0 c f V e n t e d F b 5 0<br />
S h e f f i e l d P r o 1 2 0 0 2 . 5 0 c f V e n t e d F b 4 5<br />
S h e f f i e l d P r o 1 2 0 0 2 . 5 0 c f S i n g l e R e f l e x B a n d p a s s<br />
9 5<br />
9 0<br />
8 5<br />
8 0<br />
7 5<br />
7 0<br />
6 5<br />
6 0<br />
10 F r e q u e n c y , H z 50 100 Hz 500 1K<br />
S P L , d B<br />
1 0 5<br />
S h e f f i e l d P r o 1 5 0 0 1 . 2 5 c f S e a l e d<br />
Sheffield <strong>Pro</strong> 1500 2.0cf Vented Fb50<br />
Sheffield <strong>Pro</strong> 1500 3.0cf Vented Fb42<br />
Sheffield <strong>Pro</strong> 1500 4.0cf Vented Fb38<br />
Sheff <strong>Pro</strong> 1500 4.0cf Single Reflex Bandpass<br />
1 0 0<br />
9 5<br />
9 0<br />
8 5<br />
8 0<br />
7 5<br />
7 0<br />
6 5<br />
10 F r e q u e n c y , H z 50 100 Hz 500 1K