[Chrisbee]

Hi brucek

I just haven't got round to calibration on the new soundcard yet. I had such poor luck with both of my cheapy soundcards that I lot interest.
The External SB Live! is hopefully fairly flat anyway.

I'm using a Behringer CX2310 active crossover in 4 channels (2x stereo) to feed my 4 IB drivers in series pairs on the Low Channel driven by an EP2500.

My speakers are on the High Channel with their own Naim stereo power amp.

The CX2310 crossover has a fixed 24dB/octave crossover slope (AFAIK)

It's been fascinating running lots of sweeps with small movements of the RS meter backwards and forwards. With and without BFD. With and without speakers. With various crossover points etc.

One can learn a lot about the response in a relatively short time with these very brief REW test runs. It used to take me 40 minutes per run with sinewaves and results were completely different from REW!

I'm utterly amazed how high I had the bass compared to the speakers after using sinewave tones with manual recording of the results.

Without the BFD it now sounds very bass heavy thanks to the emphasis from 20-60Hz.

Next I'll try pulling that big bass hump down with some broad filters on the BFD.