The saga continues. This is to attempt to salvage the A3-300 enclosure from ED after my driver failure and 2nd LT.300 amp failure.
Based on daveds50's suggestion, I replaced my Dayton RSS315HF-4 with the Infinity Reference 1260W driver when I replaced the ED LT.300 amp with a Dayton SPA250 amp for better sound quality. The original driver had failed a while ago, and the Dayton seemed a good replacement, but the low sensitivity was viewed negatively.
A question I have is with mounting the new driver. It seems to require installation with screws facing outward vs. down like every other driver I've ever installed to compress the rubber gasket (i.e., the gasket is on top of the frame vs. below it). This is a big problem, because I can't install the driver from the bottom without destroying the enclosure. So I must put something over the top of the driver's gasket and screw it down, since the gasket is also used to attach the cone to the driver frame (and you can guess how I figured that out). I need to use a grill or ring, but grills look too flimsy to also be used to mount the sub to the enclosure to ensure an airtight seal (driver installs horizontally), and I'm not finding a lot of rings for this purpose or any guidance on the web for this type of problem. Is there a part for this I haven't found yet?
Btw, my impressions with the new setup is that the new rig (lower power amp + lower capacity driver) has substantially less ability to move air than the original setup, which was to be expected. The clarity should have been better, but I didn't hear that initially. I rebalanced a la Audyssey, and it's much better (by lowering the front speaker's crossover and raising the sub gain), but I had to set amp gain at 40% for the sensor to even recognize I had a sub (my original setup had gain below 15% to keep dogs from howling
. See my earlier post about my room, which is large and difficult.
I'm particularly disappointed that the Infinity driver uses cheap spades for the wire connections instead of screw/pushdowns like the Dayton. I'm tempted to add solder to ensure the wires don't come undone--one of the connections isn't confidence-inspiring. Bizarrely, this is supposed to be a driver for cars; I'd have zero confidence in these not coming undone in a car.