Hi Stephen,

Manual adjustment of the EQ via the on screen display of the Model 976. I recommend a PC utilizing REW with an HDMI output to the Model 976 and utilizing ASIO4ALL drivers; this allows you to run your tones for each channel independently via one HDMI connection.

I have had good results with the MiniDSP UMIK‑1 USB mic; the serial number can be entered into their website to download the calibration file of your microphone and then you can upload it into REW.

Here is graph of my PSA 15S sub response with REW EQ filters generated for the 976. REW Google photos

Have you got to the part where it says if your system isn't minimum phase then parametric EQ isn't going to fix it?

From this I take it that the first step should be identifying and fixing*any glaring problems in your room. Then re-run REW and tune in the parametric EQ.

You are so right!

...*or minimize their impact. See close.

From years ago I recall "pinking" a room or car. In a room making a few small, sometimes mi-nute, location or angle changes made a big dif. In bi amped or tri amped car, just a tiny gain adjustment would typically then suggest, but not require small/subtle GEQ tweaks. From there client could "season to taste". We found those that had decent home systems as reference were downright pleased as is!

I'll close w/to I've posted on other related threads:

1. Know your system's specs. Use the f3 as reference and cut ABOVE to level and smooth; NEVER boost near, @, or below the f3.

2a. be careful boosting below 200hz;
2b. be very careful boosting below 100hz;
2c. be VERY, VERY careful boosting below 50hz.
2d. Be EXTREMELY careful boosting below 30hz even if your speaker/sub is rated into the teens. TRY location adjustments & room treatments.

3. EEman please chime in. Boosting any frequency exponentially ups the demands upon your AVR or amp. Moderate EQ changes also intros some phase shift; big EQ changed even more so.

Do I see -19.5 & -14.5 @ 57hz & 99hz respectively? I say "WOW" but good. What's your sub's f3?

I'm relieved that REW/976 connect are separate! For some time I HAD this notion REW was some how "wired" to the 976 PEQ DSP. That when ya took the readings, ya pressed a button and, bam, (one channel at a time) system EQ'd! But you couldn't see the proposed changes or override any extreme settings.

Awesome! Merry CHRISTmas!

f3 is, in this case, your sub's LF cutoff. For example my towers' f3, per Polk, is 35hz. My front sub rated & tested to 20hz.

So I have a MacBook Pro with ethernet, firewire, thunderbolt, and two USB ports. One USB port will be used by the mic. Thunderbolt to HDMI seems to be easy using an adapter but which MacBook port is best for using REW with the 976?

Initially, you may think to use the headphone-out of the computer and I made the same mistake, but the Model 976's analog input section is pure analog. This means the EQ does not, and cannot, affect the analog inputs because they stay analog through and through and are not converted.

IMHO, this is not a problem, as these days the conversion is done at such a high quality that it is irrelevant. I'd rather have proper EQ and crossover in DSP than a "pure analog" path.

However, isn't is strange that this information is emerging a year after the initial product announcement and 6 weeks into the sales!

However, isn't is strange that this information is emerging a year after the initial product announcement and 6 weeks into the sales!