Which is better...tune speakers from the MLP or from 1 Meter on a DIY speaker when starting from scratch on the crossover settings?

NBPK402 · Feb 20, 2023

In my last DIY speaker setup in a fully treated room that was right on the verge of being to dead and sounded superb. I placed the mic at the MLP for REW and a HTS member tuned my DIY speakers. In my current room which is NOT fully treated, and is a huge concrete room with some room treatment panels, and some large rugs (nowhere near enough due to the 32' tall ceilings and open floor plan), I am not sure what the differences would be tuning one way vs the other. I know most people I know tune from 1 meter, but my rational on doing it last time was that if I tune from the MLP it would be more relevant (due to that is where my head is)...it def is easier as the mic stays in the same position and is just rotated toward the speaker.. Anyone here that can assist me in which way would be best in a live sounding room?

ddude003 · Feb 21, 2023

You are doing Room Correction, yea? For 2 channel stereo or 2.1, I would go with the MLP... For HT, several samples averaged from across a listening area like an entire couch or the most often seating arrangement for multiple listeners... Other than time, there is nothing stopping you from trying several methods...

NBPK402 · Feb 21, 2023

ddude003 said:
You are doing Room Correction, yea? For 2 channel stereo or 2.1, I would go with the MLP... For HT, several samples averaged from across a listening area like an entire couch or the most often seating arrangement for multiple listeners... Other than time, there is nothing stopping you from trying several methods...

What I am doing is using REW to get my crossover settings...not tune the room. I will be using Dirac to tune the room. I need to learn how to use the auto tune function in REW as I have heard it does a great job, without having to know a lot about tuning.

skid00 · Feb 21, 2023

You can be reasonably successful in EQing bass frequencies, when using the 'moving microphone method' - at the listening position.
Trying to EQ higher frequencies is problematic, due to room reflections and the speakers side/back panel emissions. Taking those at 1 meter would help eliminate reflections - if you also use narrow 'windows' in REW.

It isn't easy to blend LP and near-field measurements, given the differences in volume near vs. far. It never hurts to try, but you want to EQ using large values of Q (over larger swaths of frequencies).

Some people frown on using REW as a tone control.

*I* think it works great that way. I've posted before on having multiple EQ files for use in eqAPO, if you would care to look at my prior posts.

Don't be afraid to take your time doing scans. Oh-and I found it very useful to have an open-cell foam block to embed the mic in, to reduce reflections from the mic, and things behind it.

NBPK402 · Feb 21, 2023

skid00 said:
You can be reasonably successful in EQing bass frequencies, when using the 'moving microphone method' - at the listening position.
Trying to EQ higher frequencies is problematic, due to room reflections and the speakers side/back panel emissions. Taking those at 1 meter would help eliminate reflections - if you also use narrow 'windows' in REW.

It isn't easy to blend LP and near-field measurements, given the differences in volume near vs. far. It never hurts to try, but you want to EQ using large values of Q (over larger swaths of frequencies).

Some people frown on using REW as a tone control. *I* think it works great that way. I've posted before on having multiple EQ files for use in eqAPO, if you would care to look at my prior posts.

Don't be afraid to take your time doing scans. Oh-and I found it very useful to have an open-cell foam block to embed the mic in, to reduce reflections from the mic, and things behind it.

Thanks, the speakers are a DIY 2 way horn with an Xilica active crossover, so this is a scratch start tune. I am going to try the autotune feature if i can figure it out.

ddude003 · Feb 21, 2023

Oh, did not realize you are doing active crossovers with Xilica kit... Did I miss that in your More or Sig??? Well that's a fine kettle of fish... :rubeyes:

LOL...

NBPK402 · Feb 21, 2023

ddude003 said:
Oh, did not realize you are doing active crossovers with Xilica kit... Did I miss that in your More or Sig??? Well that's a fine kettle of fish... LOL...

Oops, I thought the Xilica was in my signature, I will add it.

perceval · Feb 25, 2023

People measure at 1m when building a speaker that will be for a generic room.
The beauty of DIY is that you can select the parts you want, and tune the set to your listening position, as they will be for your room and your listening preferences.

NBPK402 · Feb 25, 2023

perceval said:
People measure at 1m when building a speaker that will be for a generic room.
The beauty of DIY is that you can select the parts you want, and tune the set to your listening position, as they will be for your room and your listening preferences.

Thank you, I will return to tuning the speakers from the mlp.

Which is better...tune speakers from the MLP or from 1 Meter on a DIY speaker when starting from scratch on the crossover settings?

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