No can do. The motor and top plate position is different between these two. They are different generations.
Barry.
I'm not sure if this has been brought up already but is the OP considering closed cabinets? Playing below fb is kind of without good taste wouldn't you say?
I'm personally not a fan of DSP, having said that an ahh ha moment came during the Florida Audio Expo. We have an end-user with a small 2 channel room in his home with about 2X as many woofers as you are proposing, distributed throughout the room. An array in each of four corners, center rear and flanking.
The in room response was probably flat to 14 Hz and nothing in the play list even hinted at bass extension. Having said that the sense of spatial correctness was uncanny. The woofers, and only the woffers were are all independently DSP corrected.
The in room response was probably flat to 14 Hz and nothing in the play list even hinted at bass extension. Having said that the sense of spatial correctness was uncanny. The woofers, and only the woffers were are all independently DSP corrected.
The degrees of freedom you reach with dsp is breathtaking.
Before I got used to EQs be it on hardware or software I could not imagine how sensitive the ear is to frequency response.
Before I got used to EQs be it on hardware or software I could not imagine how sensitive the ear is to frequency response.
Here's a quick update. I now have two JBL 2446 compression drivers handling the highs. The line arrays are handling the mids. The bass line arrays are handling the low mids and upper bass. The line of 15 inchers behind the couch are handling 55hz down. There is also an HSU and an Infinity sub as well.
I still have some unfinished projects: Plugging the ports on the 15's.
Making stands for the compression drivers.
Adding my other 15" sub.
Adding another amplifier or two to get more out of all the 15's.
I still have some unfinished projects: Plugging the ports on the 15's.
Making stands for the compression drivers.
Adding my other 15" sub.
Adding another amplifier or two to get more out of all the 15's.
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I use my garage as a SUB with 4x 2226H 15" with new foam surround from 2235 and a modified spider much looser giving a Fs below 20Hz. I use it in the range of 15-37 Hz. I cover the drivers with a wall and a ventilation grid just below the window.
Looks nice and it is "approved" by top management, after the threat that othervse there will be a 2x1m2 boxes in the corners. from 37Hz to 100Hz i use 3x15" elements in dipole configuration on each channel with ESL63.
Looks nice and it is "approved" by top management, after the threat that othervse there will be a 2x1m2 boxes in the corners. from 37Hz to 100Hz i use 3x15" elements in dipole configuration on each channel with ESL63.
Art, I finally got them all sealed. I definitely don't think I have the power to get them to 107db at 10 hz yet.
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I would think that the biggest improvement you will see with this arrangement isn't lower distortion or more "slam," but by radiating the sound in the lower, mid and upper parts of the room, you will be reducing bass nodes. You could see even better results by placing the woofer boxes in different positions in the room. Regardless, it sure looks impressive!
Nice setup i can feel the amount of undistorted clear powerful bass by just looking the photos.I have two double 18s tapped horns in 35 square meters and two single 18s tapped horns in 45 square meters on different room.Big systems like ours or from other members here reproduce the real concert dynamic sound.
Can you comment on any acoustical differences that youve noticed since switching from ported to sealed, hopefully using the same voicing. I have thought about this for some time if you have to use to extend its not real clear how using BR isn't the better choice. BR or a Peak filter to boost response in the typical area of cutoff still results in a group delay spike but with BR you get the excursion null and lost of performance below cutoff.
