REW first measurements, please advise

[nck045]

Finally got some time to learn the basics of REW and got my first measurements in. Red is measurement at listening position (var smoothing) and blue is the Harman target.
Overall I feel the sound is great but I at times the bass can get a little boomy. Need help with a few newbie questions:

1. What frequencies should I try to EQ? Just the bass area or the whole 20-20,000 Hz range?
2. Can I let REW make the filters to reduce the boomy bass? I tried messing around with the EQ but the big dips below 200Hz are not getting fixed?

Any suggestions would be appreciated thanks in advance!

 

[terryforsythe]

The big dip around 67 Hz is a room mode. EQ won't fix that.

 

[ernestcarl]

It looks like you don’t need to bother with full-range EQ. Start with just the bass. Flattening that low-mid peak ~370Hz might not be necessary — or just cutting it by half could be adequate.

 

[ppataki]

You can try two approaches:
1. Keep the target and optimize 20-500Hz with 0dB boost
2. Try setting the target to 85dB and run a full optimization 20-20 000Hz again with 0dB boost

 

[HDavidson]

First, try calculating filters 20-500 at this level (91-92db) in REW. Most likely this will be enough for correction.

 

[ozzy9832001]

I wouldn't build the filters with VAR smoothing either. It will over compensate and make it sound worse, IMO.

I'd try with 1/6 at first, and see how it sounds.

 

[radix]

In general, you do not want to try to boost the EQ to fix a dip, but rather cut the peaks, like @HDavidson suggested. Dips below 200 Hz are usually due to reflections (the sound bouncing off your walls or furniture). Boosting them does not fix the reflections.

The 63 Hz drop will only get fixed by moving the speakers or MLP around or getting a sub that can fill it in from a different position. Cutting the peaks will make that dip less noticeable.