First measurments, with and without eq, Velodyne IC 600

**JRace** · **06-08-09, 03:09 PM**

Black = before auto eq
Rd = after auto eq

Sub: Velodyne In Ceiling 12" subwoofer with auto eq.

I was surprised to see a half-way decent before graph...and also suprised to see little change after the 7-band auto eq.

**Wayne A. Pflughaupt** · **06-08-09, 07:08 PM**

Quote:

JRace wrote:

I was surprised to see a half-way decent before graph...and also suprised to see little change after the 7-band auto eq.

Yeah, a BFD would do better...

Regards,
Wayne

**brucek** · **06-08-09, 07:16 PM**

Quote:

I was surprised to see a half-way decent before graph

And you're doing yourself a disservice by using such an expanded vertical scale.

If you used the more reasonable standard that we use here of 45dB-105dB, you'd be amazed how flat that response actually is. You're using about a 20dB spread rather than the accepted 60dB. You should also take your measurements at 75dBSPL.

brucek

**JRace** · **06-08-09, 08:03 PM**

HAHA! It does look much smoother with your recommended scale.

I will attempt me next measurement at 75dB.

Thanks for all your help and info Bruce!

**JRace** · **06-08-09, 08:05 PM**

Quote:

Wayne A. Pflughaupt wrote:

Yeah, a BFD would do better...

Regards,
Wayne

BFD in waiting....just need one more cable to complete the connection and it will be next.
I do prefer having the ability to manually adjust the filters rather than letting the amplifier/dsp do it for me. I wish the Velodyne SC-600 gave some indication of what it was doing.

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