Shout out to Heather James (hjames)
Posted: August 30th, 2021, 7:58 am
Thank you for the Altec 15 cabinets (and to Joe Roberts, who gave them to you). They've languished for awhile, but finally are in use as my new subs.
The cabinets were a bit flimsy and resonant for my tastes, so I laminated the bottoms with three sheets of 3/4" plywood, as a base, the front &rear with 3/4" MDF, and added bracing top-to-bottom, side to side and front to braces. All braces tied together internally. The cabinet is still just shy of 4 cubic feet internally. The new driver is a Dayton RSS390HF-4 https://www.parts-express.com/Dayton-Audio-RSS390HF-4-15-Reference-HF-Subwoofer-4-Ohm-295-468 15" woofer.
Sanded, then sealed the cabinets with shellac. Finally, rolled-on some fresh house paint.
I'm tickled with the way they turned out and how they sound. They are cut off at 120Hz, 8th order right now, a number that may lower as a result of experimenting. Also need to play with the DSP to smooth out the room a bit. But I'm very happy right now!
Thanks again!
Stuart
PS, they are so heavy now, it takes two people to move them!
The cabinets were a bit flimsy and resonant for my tastes, so I laminated the bottoms with three sheets of 3/4" plywood, as a base, the front &rear with 3/4" MDF, and added bracing top-to-bottom, side to side and front to braces. All braces tied together internally. The cabinet is still just shy of 4 cubic feet internally. The new driver is a Dayton RSS390HF-4 https://www.parts-express.com/Dayton-Audio-RSS390HF-4-15-Reference-HF-Subwoofer-4-Ohm-295-468 15" woofer.
Sanded, then sealed the cabinets with shellac. Finally, rolled-on some fresh house paint.
I'm tickled with the way they turned out and how they sound. They are cut off at 120Hz, 8th order right now, a number that may lower as a result of experimenting. Also need to play with the DSP to smooth out the room a bit. But I'm very happy right now!
Thanks again!
Stuart
PS, they are so heavy now, it takes two people to move them!