Q&A: Has anyone bench tested this amp and subwoofer?
Question by Kingtut: Has anyone bench tested this amp and subwoofer?
Power Acoustik BAMF4000/1D 1200W Class D Mono Amplifier
says it can put out 4k watts max and 1200watts rms
i used to own one but it got stolen before i could bench test it
Boss p12DVC
says 2k max 1k rms but i don’t believe it, i just don’t want to be blowing my subs again
Please don’t be doggin on it. Simply present your evidence here and i will pick the one who does it without being rude.
Best answer:
Answer by dragon breath
power acoustik amplifiers usually make about half the power that they are rated to make. boss equipment is even worse.
What do you think? Answer below!
1200 is probably realistic for the bamf 4000. It “claims” 2200w at 1 ohms, which is NOT realistic.
I found some info on the bamf 5500 on a couple car audio forum searches. The consensus is it does around 2000w rms at 1 ohm, so for a few different reasons I think it would be reasonable to expect something around 1200 out of the 4000 at 1 ohm. 800-1000w at 2 ohms, 500-600w at 4 ohms.
One of the most basic approximations you can make with an amp (and fairly accurate in my opinion) is to look at the size of the fuses and multiply it by 10 to 12 to get an idea of actual power (at minimum impedance). That would give you 1200-1400 with that amp.
Regarding the Boss subs — Ignore the power ratings for a minute. Look at the price. It’s a $ 55 sub, shipped. It has a 2.5″ diameter voice coil.
Then, look at some $ 50-60 subs from the respectable companies for comparison.
The mbquart ONX304 for example. $ 55 sub, 2.5″ voice coil, 400w rms.
Polk db1240 – $ 65, 360w rms.
Pioneer ts-w309 – $ 70, 400w rms.
That list can go on and on.
The point I’m trying to make is, unless Boss is breaking new ground in the production of inexpensive subwoofers that can handle mega power (and they’re not), they have to be lying about the capability of their equipment — something they are notorious for doing.
Optimistically I’d say 400w rms for the P12dvc, and even then be very careful with the gain and keep the bass boost at the min.
The only Boss sub I’ve ever seen that can probably actually handle 1000 w rms would be the Outcast L12.
February 4th, 2013 at 1:15 pm