TOPIC:

Hi All,

I would like to ask a general question about room correction:
What shall be the ideal order of the followings:
- Room correction EQ
- Speaker distance setting
- Level setting
- Crossover setting

Currently the order I have is the following: Crossover -> Distance -> Level -> EQ
But I was reading on other forums that EQ shall come before setting the crossover...in that case the order might be Distance -> Level -> EQ -> Crossover or EQ -> Crossover -> Distance -> Level

Any suggestions please?
Thank you

Hi, if you don't mind my saying, you should stop trying to get quick answers on forums and instead learn the basics of how speakers and rooms work.

Thank you, duly noted!
Now can you please provide an answer too ?
Much appreciated

Hello Peter

Let's see how we can help.
I think that there are few things to try to isolate here.
- Driver EQ (i.e. each individual unit)
- Speaker EQ (i.e. if you have multiway, when combined)
- Room EQ.

While it's all EQ in the end, it's a bit confusing isn't it?
- Driver EQ would be near field (i.e. microphone close to speaker to measure the actual driver response inside that box.) You'd figure out your crossover from that measurement.
- Speaker EQ is when you have done your crossovers, see how they match. You will tune a bit the delays in there to get a good matching over the "overlap".
- Finally, when you move to room eq (i.e. microphone actually further away from the speaker). You will start to make measurement of speaker + room.

The preference is to start tuning the speaker first so you have a good basis.
For overall "Room correction", you can do that to some extend with REW. (e.g. low frequency). You may need to use Dirac for better results (e.g. www.minidsp.com/applications/digital-roo...rc-24-for-2-1-system)

Did you happen to check out our app notes for crossover/room correction (with Dirac)

Hoping this info helps.

Hello,

Thank you for the answer!

I have a 2.1 setup (3 channels using U-DAC8), the crossover for the monitor speakers is set, I cannot change that but I can change the crossover for the subwoofer

What I have done is that I measured the system with UMIK-1 (at listening position, Room EQ) with the sub crossover switched off (full range signal to all speakers) did the EQing then I configured the crossover - further measurements to see where the crossover is best, 40-80Hz at 10Hz increments - then finally the delay and the level setting

What do you think about this?
Thank you

Hello

Ok, thanks for the clarifications.
- Only issue is that you have limited control over the L&R (no crossover). That might throw off a bit your measurements (i.e. can't do much about it). Maybe see if your software player can add crossovers on these channels? e.g. JRiver
- Also, when you did the EQ, you're only doing for L&R? Why not EQ for the whole system (i.e. inc the sub).

DEvTeam

Hello,
Yes, I have no control on the L&R crossover, only on the sub crossover
I am EQing the whole system, not just the sub (all 3 channels separately)

I have pretty much the same questions... I am putting up a 3 way active system. Why should I measure near field instead of from listening position? At which point do I use rePhase? using near field measurements or listening position measurements?

Hi, I suggest reading the application notes on speaker measurement (linked from menu at top of page)