Should I trust YPAO?

[Kroven]

So here is my issue:

I ran a YPAO system caliberation on my:

Martin Logan Motion 8 Center
Martin Logan Motion 4 Fronts
Polk Audio Surround(Model Number N/A)
Definitive Supercube 2000 Sub

All speakers were set to LARGE

SUB CROSSOVER was set to 40 HZ

This makes no sense to me...I am no pro, but shouldn't these speakers be set to SMALL and the Sub Crossover be set to 110 or so? It seems like there is a huge gap since the ML only reach 70hz. So between 40 and 70hz there is nothing right? Thanks for anyone who can make sense of this for me.

 

[ParadigmDawg]

It's common for auto-cal to set all your speakers to large. I'm not sure why the crossover was set so low, maybe the sample wasn't clean such as there was some noise going on when you calibrated. I would re-cal and make sure it's dead quite in the house and make sure you sample as many positions that your YPAO allows.

After re-cal, go back in and change speakers to small and set the crossover to a reasonable number.

The Motion 4's have a low end extension of around 70 hz so 90hz would be a good place to start.

 

[Kroven]

Thanks ParadigmDawg, for clearing that up for me. I have a new, but more basic Yamaha 5.1 system and I only think it will save one caliberation at a time. Its not bad, but I am limited in the option department. I will try what you said this evening and let you know!

 

[Pyrrho]

ParadigmDawg is giving you good advice. YPAO is, from my experience and from reading about other people's experience, good about distances (delays) and levels, but not so good about large and small and crossover frequencies. Fortunately, what is hard for humans to do well, it does well, and what is easy for it to do, humans often screw up. So follow ParadigmDawg's advice.

After setting things manually as suggested by ParadigmDawg, I recommend that you rerun YPAO yet again to make sure it does not change anything based upon the changes that you made. And then make sure that the crossover frequency has not been changed.

Basically, YPAO can be trusted for levels and delays, but not for crossover frequency (neither can other brands either, so you will not get any benefit from getting away from Yamaha, which I highly recommend and use myself).

 

[3db]

So here is my issue:

I ran a YPAO system caliberation on my:

Martin Logan Motion 8 Center
Martin Logan Motion 4 Fronts
Polk Audio Surround(Model Number N/A)
Definitive Supercube 2000 Sub

All speakers were set to LARGE

SUB CROSSOVER was set to 40 HZ

This makes no sense to me...I am no pro, but shouldn't these speakers be set to SMALL and the Sub Crossover be set to 110 or so? It seems like there is a huge gap since the ML only reach 70hz. So between 40 and 70hz there is nothing right? Thanks for anyone who can make sense of this for me.

Before running the calibration, manual set your speakers to small and omit that selection from running in YPAO. Then run YPAO. That is the correct order of doing it. Running YPAO first and then setting speaker too small will leave large speaker artifacts in the automated EQ settings. Doing it in the order I propose will give you the correct the EQ settings.

 

[Kroven]

Thanks folks for taking your time to get back to me. I let YPAO do the setup and I went in and adjusted the crossover and the speaker size. It sounds pretty good to me. I will mess around with omitting speaker size before I run the caliberation. Again thanks for the education!