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I am nearing completion on my THT, and i am looking for a plate amp. I was looking at the Dayton SA100 amp, is this enough power or should i go for a bigger amp. I am using the Dayton DVC woofer in the THT. The THT will be used in my home with my La Scala's, and i usually run them at moderate levels, when i'm home alone it may get a little louder. I know with horn loaded speakers you usually don't need a lot of power to play loud, but is it the same with horn subs. The SA100 is listed below.

Descriptionrelated itemswarranty
Small but mighty! This high performance amplifier module packs big-amp features into a compact chassis that is ideal for installation into cabinets that can't accommodate bulky old style amps. We made it small, but included everything that you need to connect the amp to your system and get maximum performance. Input/output connections are through your choice of either line level RCA connectors, or speaker level banana jacks. A stereo input signal is summed to mono and sent to the internal low pass crossover, which is selectable from 40 to 180 Hz, and the input gain sensitivity is fully adjustable as well. A phase reverse switch helps you to achieve the best acoustical match with the rest of your speakers, and an Auto On/Off switch keeps the amp standing by, waiting for an input signal to turn it on. A large surface area heatsink is combined with internal overload, thermal, and short circuit protection so that you can expect years of reliable operation. Dimensions: 7-1/2" W x 8-11/16" H x 4-3/4" D. Cutout dimensions: 6-1/2" W x 7-1/2" H.

* Low distortion
* Adjustable low pass crossover
* High and low level inputs/outputs
* Auto On/Off
* Phase reversal switch.
* 75 watts RMS @ 8 ohms, 100 watts RMS @ 4 ohms
* S/N Ratio: 90 dB (A-weighted)
* Dimensions: 7-1/2" W x 8-11/16" H x 4-3/4" D

Spend the extra 30 bucks or so for something with more power. This is adequate, but just, and you won't have much headroom.

http://www.parts-express.com/pe/showdet ... er=300-750

I've seen that one recomended for like... the Table tuba?

http://home.comcast.net/~jhidley/

I ordered two of the foster plate amps and I'm very happy with them. For the price, I think it is the best deal you can get. The 12db/octave from the PE plate amps just killed it for me. I found 12db/octave to be inadequate for my tastes. The foster has 24db/octave, polarity switch, auto "on" feature, and the a high pass at 30hz(which like the other, you can alter to your tastes). I measured it with a 60hz tone and it puts out 42volts. And if you get two, you can actually bridge the two separate amps to double the voltage if you need that much. Shipping is kinda high, but the cheap price of amp sealed the deal for me.

Of course, the loudest i've listened to my speakers (and this was for testing, not for prolonged period of time) was 1.5 volt into the sla's and 2(avg) -5(peak)volts on the t18. Although I sit 1 meter away from them, my normal listening levels are about 10% of that.

Bill Fitzmaurice wrote:Spend the extra 30 bucks or so for something with more power. This is adequate, but just, and you won't have much headroom.

+1 to that.

I bought the Dayton 240 plate amp with built-in +6dB/octave EQ.
It works great, runs cool, and is certainly decent construction for the money paid.
The guts are CCS, but then everything is CCS these days.
Mine is power controlled by the input signal. Goes off when the TV is off.