Summary: i love the fact that the unit is rack mountable as i plan to install it in a vintage Pioneer entertainment 'rack'. it has dual output so it is perfect for me as i will be running two separate subwoofers.
Pros: Rack mountable
weight distribution and balance of the unit feels 'right'
Summary: I've been running a 12 inch JBL with the manufactures in box amp, which burnt up 3 times. Found an old amp from the 70's which worked "ok" for about a year and then died. Found this amp here on Crutchfield, thought the price, a little high for my budget, boy was I wrong.
Pros: Belts out more sub bass than you expect. fully adjustable. Bass sounds from you favorite TV shows, you never heard before.
Summary: My SA1 is powering an M&K MX125II. It M&K is a wonderful subwoofer, designed by Ken Kriesel. The original amp blew and could not figure out the issue. Finding a dedicated sub-amp, not designed for autos is very difficult.
Pros: Looks good. Line-level inputs. Dual speaker outputs. Output modified for either wall or floor mounting. Auto shut-off. Bypass.
Summary: I replaced my old SA-2 amp with the Boston Acoustics SA1. Set-up was easy. I'm driving two passive 10 inch woofers and it works great. The build quality is solid. The sound it produces is superior to the old SA-2. It delivers great punch while maintaining pure crisp bass.
Pros: Produces powerful clear bass without any muddy affects.
Summary: About 5 years ago after Boston Acoustics stopped making their outdoor bass speaker I bought it to use in a home I thought I was buying. Unfortunately the economy decided otherwise and I never purchased the SA1 amplifier.
Pros: I decided to integrate the SA1 with the woofer in my home theater system.
1. Easy hookup using a trigger and a second bass output from my existing receiver and a Reference Furman.
2. No hum and powerful bass.
3. Integrated into an all Martin-Logan speaker system beautifully as a side woofer.
Summary: This subwoofer amplifier and its twin from Snell are very good, reliable products. This is my second and powers an in-wall Snell subwoofer used with a Snell IW-K7 in-wall array. The Snell satellites are driven by a Pioneer SC63 receiver. The room is approximately 2200 cubic feet.
Pros: It just plain works without difficulty
Cons: In my opnion, it would be nice to have both adjustable low pass and high pass filters for some of the more challenging passive subwoofers