Equalizing low frequency response.

[Nuglets]

I am in the process of trying to equalize my low frequency response and have a few questions.

1) If I use TrueRTA Level 1, which has a resolution of 1 octave on the analyzer. Will this be accurate? I am only playing one frequency at a time.

2) How accurate would you suspect the Yamaha YPAO mic to be? That is the one I have and it just plugs right into my Audigy 2.

3) Does anyone know anything about Stageworks EQ's? It is a rackmount professional EQ with 31 bands for each channel. The model number is E231X.

Thank you for your help, I really want to get this right. It sounds good now, but I would like to be as accurate as possible. I have absolutely no cash for any type of room treatment at the moment but some day it will be done.

 

[MACCA350]

You could try Room Eq Wizard, its free(and more accurate than TrueRTA Level 1) and will show you what your up against. Then you can decide if its worth investing in Eq equipment.

cheers

 

[Nuglets]

I'll try that program. I already own the EQ and mic, so there is no investment. Thanks.

 

[Nuglets]

Well I figured out that I had a major issue with subwoofer gain when in direct mode. I don't quite understand why in such a large room, I must turn my subwoofer level control to -6dB. This is the subwoofer control on my powered towers which adjusts the output below 60Hz. It is not controlled from the subwoofer out on my receiver. The full range signal goes into the speaker level inputs and it does it's own thing from there to separate the signal between the built in amp and the external amp. I figured in my large room I would need to increase the gain...but apparently not. I currently disconnected my equalizer and got my frequency response fairly flat. Actually better than with the EQ applied. I am still figuring out how to save the graph from this new program so I'll get that posted if I do.

 

[Nuglets]

This is the graph of both fronts playing together. I think I need to change the batteries in my SPL meter because of the premature rolloff in the high range and possibly the low range. I also don't know if those large peaks are entirely accurate in the high range because I didn't have the "compesate for c-weighting" option checked which I think must be done with the SPL meter. I'll being doing some more testing as soon as I have more time. The response graph changes drastically when I compare the YPAO mic with the RS SPL meter. The YPAO also has a very low sensitivity compared to the SPL meter when plugged into my PC.