This enclsure was originally designed for 1500wrms, and for that application it was remarkable. Excellent SPL/Watt ratio, Very good SQ. Bass was tight and accurate while having great low end extension.
I wanted to get back into SPL competitions for 2008, so I invested in 6.4kW of power. This enclosure isn't really favorable for that amount of power. I had no problem with that amount of power in extremely large enclosures with extremely large vents (36ft with 660in of port), but this enclosure suffocates with a measly 63in of port area.
I want to build an enclosure that has more port area, and higher SPL capabilities, but this would cause SQ to suffer due to high tuning and extremely peaky port response. So I was thinking about making a plug that slides into the port. I have never tried this procedure before, but have heard from several that have tried this and they seemed to like the results. Most of them however used the plug as another smaller, lower tuned port. I have considered this method as well, but I was making it a sealed enclosure with the plug in. I'm not really interested in all out SPL for daily driving but rather a nice smooth response and good overall SQ while extending the low end roll off.
Here's the numbers:
Hybrid #1 vented/sealed
net internal volume- 4.01ft^3 port- 13x8 (104in^2) tuned to 57.5Hz
internal volume w/ sealed plug- 3.42ft^3 for SQ
Hybrid #2 vented/vented
net internal volume #1- 4.01ft^3 port #1- 13x8 (104in^2) tuned to 57.5Hz for high SPL
net internal volume #2- 3.92ft^3 port #2- 13x4 (52in^2) tuned to 38.5Hz for SQ/SPL
any input or suggestions? I know it's hard to say what it'll sound like, but if anyone here has tried this or something similar, hearing those results could help me. Thanks in advance, Jay.
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