sekess
06-06-2008, 09:46 AM
I recently swapped in my pair 2245's into my existing subwoofer boxes. These boxes are somewhere between 14 and 14.5 cu. ft. internal volume (after subtracting for corner bracing, driver volume and port volume). I have 3 precision ports in each box (4 inch diameter, 17 inches long, and flared on all ends). The boxes are tuned to 18.50 Hz or so. I made these for a pair of Avalanche drivers.
These boxes came out nice. But, constructing cabinets is very tough for me. So, I'd like to use these for my 2245's if it's possible. My question here is about the port lengths.
Currently, I have a 20Hz highpass (2nd order)(to protect against too much excursion down low) and I've been alternating between 60Hz and 80Hz lowpass (2nd order). To optimize these boxes for my 2245's, what would be a good length for three 4 inch ports ber box? They sound nice now. But, I think this is too low of a tuning for the 2245's. I see that most are using smaller sized boxes for these drivers. But, I dread having to go through constructing another pair of cabinets this large. So, any help in adapting these guys to my 2245's is much appreciated.
Here is a pic of the cabinets with the 2245's inside.
The 416's above them are sitting in some old cabinets I picked up. The 2 small drivers in the 416's cabinet are not active. They are just in there to plug up the openings.
Thanks in advance for any suggestions,
Steve
32783
These boxes came out nice. But, constructing cabinets is very tough for me. So, I'd like to use these for my 2245's if it's possible. My question here is about the port lengths.
Currently, I have a 20Hz highpass (2nd order)(to protect against too much excursion down low) and I've been alternating between 60Hz and 80Hz lowpass (2nd order). To optimize these boxes for my 2245's, what would be a good length for three 4 inch ports ber box? They sound nice now. But, I think this is too low of a tuning for the 2245's. I see that most are using smaller sized boxes for these drivers. But, I dread having to go through constructing another pair of cabinets this large. So, any help in adapting these guys to my 2245's is much appreciated.
Here is a pic of the cabinets with the 2245's inside.
The 416's above them are sitting in some old cabinets I picked up. The 2 small drivers in the 416's cabinet are not active. They are just in there to plug up the openings.
Thanks in advance for any suggestions,
Steve
32783