Simplexx 10 Bass/Keyboard cab, 2510 woofer, APT80 tweeter:
Simplexx 10 Bass Cab BP102 Driver, Sealed versus Ported Low Frequency:
Simplexx 210 Bass cab SC10-16 Drivers, Sealed versus Ported Low Frequency:
Simplexx 10 PA cab, Beta 10CX woofer, ASD 1001 HF driver:
Simplexx 12 Bass/Keyboard cab, 2512 woofer,APT80 tweeter:
Simplexx 12 Bass cab, BP122 woofer, Sealed versus Ported Low Frequency Sensitivity:
Simplexx 12 PA cab, Beta 12CX woofer, ASD 1001 HF driver:
Simplexx 15 Bass/Keyboard cab, Kappa 15 woofer, ASD1001 HF driver:
Simplexx 15 Bass cab, BP1525 woofer, Sealed versus Ported Low Frequency Sensitivity:
Simplexx 15 Bass cab, BP1525 woofer, Sealed versus Ported Low Frequency Maximum SPL:
This chart shows that sensitivity alone doesn't tell the whole story. A sealed cab relies on the cone alone for output, and when the driver runs out of xmax maximum output goes down. A ported cab shifts the load to the port down low, and at the same time reduces the cone excursion, so it will have higher maximum SPL than sealed. This situation also applies to the S10 and S12 ported versus sealed, or for that matter most ported versus sealed cabs.
Simplexx 15 PA cab, 3015 woofer, PSD 2013 HF driver:
Simplexx 10 Wedge:
Simplexx 12 Wedge:
Simplexx 15 Pro Sub, compared to the JBL VRX 915S:
Simplexx 15 Home Theater sub, sealed and ported:
Simplexx 18, compared to the JBL STX 818S
Simplexx 21, loaded with the Eminence NSW 6021-6. It's compared with the 2x12 T60.
The T60 has higher sensitivity and costs a lot less to build, the S21 is a much smaller cabinet. If you have room for the T60 it's the better choice, if you don't there's the S21.