Divide the speed of sound by two, divide the answer. Multiply the speed of sound by three, divide the answer by the rooms smallest dimension, eg 1130 X 3 =3390 / 8' =423.75 Hz. This is where RTA will lie to you, EQ can't help you, absorption is really your only weapon and your ears are your best tool. The region where the acoustical performance of the space is mode dominated is bounded by the first mode of the space where f =.5C/RLD up to the highest where f = 3C / RSD. RSD = Room Smallest Dimension (same metric as above) RLD = Room Largest Dimension (same metric as above)
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Below is how to avoid trouble when using RTA in small rooms and or reverberant spaces:Ĭ = speed of sound (in any metric you prefer, just keep it all the same) RTA is time blind, it knows the spectral content of the pink noise that it sends out, what it doesn't know is if the noise coming back through the mic is from the speakers or the jet flying by, the truck driving by or a standing wave in the room. It's not that the RTA in the DBX isn't good enough, it's simply the limitations of RTA.
Specifically thinking about A/D and D/A conversion that goes on in DSPs. I have not tried one personally, but i always thought that you may introduce too many variables where you sonic performance may be jeopardized. In terms of DSP, I think you either need one like DEQX that can act as both you DAC and the crossover or it is too much of a compromise. You should look into Marchand for active analog crossovers. they seem to have great products that you can tailor to your needs. 2 crossovers that audiophiles always brag about are the Accuphase F25 and the Bryston 10B, but these are to expensive for me to buy without really knowing what I am going to gain over the behringer.
That said, however, I have thought about upgrading it. One of the drivers it powers is close to 110db sensitivity and I do not have any problems with hiss or noise as other people complain. I am currently using the 3400 and am really pleased with it.
If you end up getting a good copy, you are in luck.
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