I'm not going to tell the old ' wide mouth toad ' joke here but Lee I am looking forward to seeing your Smiffy throats.
Good score on the bins though . cheaper than the plywood alone and with Mojo built in
I'm not going to tell the old ' wide mouth toad ' joke here but Lee I am looking forward to seeing your Smiffy throats.
Good score on the bins though . cheaper than the plywood alone and with Mojo built in
The flare defines the cutoff frequency, and the perimeter together with the length determines the ripple. In the books I recommended there are plots which show that in much detail (book 1 and 2).
If You place the 4520 in the corner of a room (1/8 space) then the mouth area is sufficient anyway. If You want to gain something by placement or combining then corner placement is the most effective.
Ruediger
Me and my friend helped Lee bring home his new babies (4520) this morning and my friend took posession of Lee's 4530s.
We hooked them up this afternoon and rediscovered with pleasure the extra tight JBL bass
I'm off now, got to prepare sand and paint my old 2370 horns.
Picked mine this morning with Eaulive and Stéphane. Out went the 4530s and in came the 4520s. Spent a few hours sanding and fixing on of the 4520s. Now the paint is drying in my basement. Those things are huge compared to a 4530. . 7" taller, 6" deeper, 12" wider.
You're not going to be able to play a record when you have those 4520's powered up!
I have always like those cabinets but have never owned any.
More bass extension. Way more. Less upper bass and less kick.
Here they are now. Installed. I am a happy camper. Until I build a set of modified 4520 for 18" 2240h drivers which go 10Hz lower and shall be a perfect/better match for the 4520
On the opposite wall, I have a 2245h sub crossed over at 50Hz.
One trick: bolt some casters underneath. They will make your life easier. Loaded, the 4520s are close to 280lbs each
Received a pair of 2350 and 2397 adapters this afternoon. I made a quick draft and made a pair of adapters to fit some... 104h-2. Currently with open back, but soon with a deep salad bowl as a rear baffle. The result is surprisingly good.
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