BillFitzmaurice.info

so Im about to undertake a THT build post DVC driver acquisition during the PE sale. What should I power this with? i'll be coming out of a non dsped reciever. I'd really love to find something under 120 dollars.... but I"m thinking my chances are slim.

Less than $120? I can't help ya there.

I use a Dayton SA-1000 personally. The similarly featured O-Audio BASH 500 would be my second pick. Buy one and be done, because in the future you may never know what you might attempt to power with it.

Based on what I've read here, the Bash 300 will be perfectly adequate. I bought 2 of them for my future THTx2 build.

~100 watts of solid power is generally about as much as your realistically need. Any more is just insurance since by the time you've hit 100 watts on the THT you're destroying your house and eardrums.

The Dayton 240 watt is also commonly used.

Radian wrote:Less than $120? I can't help ya there.

I use a Dayton SA-1000 personally. The similarly featured O-Audio BASH 500 would be my second pick. Buy one and be done, because in the future you may never know what you might attempt to power with it.

The O audio bash 500 is unavailable... it was my first choice. I've basically accepted that its pretty much down to the o audio 300. I like the phase adjustment and lp options a little more on that unit. doesnt the dayton have a lf roll off around 25 or 30?

sine143 wrote:Doesnt the dayton have a lf roll off around 25 or 30?

uhhh.... I was totally unaware of that until you mentioned it. I bought the SA240-B last year with the intent of using it for my THT and nowhere was the mention of a low pass in the main product description. I found it in the data sheet:
"12 dB/octave high-pass filter that is centered at 20 Hz, the F3 is 18.2 Hz, F6 = 13.7 Hz, F10 = 10.7 Hz."

Even though the THT is only designed for 20hz bass, once placed in a room it still reproduces frequencies below that which I was hoping to have...Hmmm I wonder what I can do about that...

:edit: Looks like I could modify? Makes me nervous, soldering pcb boards...
http://www.parts-express.com/pedocs/bro ... e-6955.pdf

Interestingly, the Bash 300 and 500 both have a subsonic filters stock, somewhere around 22hz. Even the O Audio Bash 300 still has a subsonic filter about 22hz, and only the o audio bash 500 has a select-able HP down to 12hz.

What the heck, how do you get a decent amp without a subsonic filter...

I initially suspected the daytons had the lf rolloff when i discovered they had a 6 db boost atound 30. As someone who regularly hp his basslines in the 25-30 range in familiar with bumping the q to add 6 db of meat rigt before the filterfreq to give those few bass notes down there extra weight. I hope the o audio 300 doesnt have a resonance peak a 22 hz. I believe that happens to be the freq that excursion is greatest wiyh the tht (or t60 cant remember). Wish i could get a rythmik audio a370 but theyve stopped selling individual components

I rock a Bearing A500 and love it. Burned a channel on my Marantz 5 channel amp and put my center on the other half of the Berry.

Soldering on PCB is an easy skill to acquire. I taught my non-mechanically inclined brother to do it in 15 minutes. Semi-defeating the subsonic filter on the Bash 300 should be easy peasy. Just need 39 and 150 kohm resistors. That would give you a HPF of 13.9hz, and a 1db boost from 20-24hz. I plan on doing this, because the lowest filter setting on the BFD is 20hz.
http://www.parts-express.com/pdf/300-750.pdf