mb3195
Distinguished Member
Thanks Rob, I'd love to pop over at some point, but I recently had a home demo for a couple of weeks of an MP50.
As point of reference, my room is 4.6m x 3.3m, no windows, no alcoves, perfectly symmetrical, I sit 30% away from the back wall and my subs are located in the rear corners (they're too big to fit up front). Whilst I had the Mp50, I did a few measurements to give me an idea of what room perfect was doing.
This first image is my 2 subs uncorrected, my Arendal sub3s are good down to around 17hz, but due to the limitations of the positioning of them, I have large null around 25hz and another one around 32hz, but my overall response is pretty good:
After running room perfect, I managed to achieve the following result, you will see that the frequency response has been smoothed out pretty well, but I still have a big null at 25 and 32hz and surprisingly another one now at 72hz that wasn't too bad previously; room perfect simply couldn't EQ these out.
So, after returning the MP50 and doing some thinking, I added a smaller Arendal Sub1 (I've actually got a another one on the way to me) behind my screen (after using REW room sim) to try and help with these nulls, I also ordered a minidsp.
These are my new results:
I think it is quite obvious that adding the 3rd sub with minidsp has given my a much better response, with now only a 1db dip at 23hz, the rest of my response is almost ruler flat.
This therefore suggests to me, that room placement is absolutely critical to help with the response in the room, but more so, below are the waterfall graphs from both the MP50 with 2 subs and 3 subs with my Marantz 8805 using Audyssey XT32 and a minidsp, again, room perfect is showing more ringing higher up the curve which tells me it isn't doing as good a job here either.
The bass sounds much better now.
As point of reference, my room is 4.6m x 3.3m, no windows, no alcoves, perfectly symmetrical, I sit 30% away from the back wall and my subs are located in the rear corners (they're too big to fit up front). Whilst I had the Mp50, I did a few measurements to give me an idea of what room perfect was doing.
This first image is my 2 subs uncorrected, my Arendal sub3s are good down to around 17hz, but due to the limitations of the positioning of them, I have large null around 25hz and another one around 32hz, but my overall response is pretty good:
After running room perfect, I managed to achieve the following result, you will see that the frequency response has been smoothed out pretty well, but I still have a big null at 25 and 32hz and surprisingly another one now at 72hz that wasn't too bad previously; room perfect simply couldn't EQ these out.
So, after returning the MP50 and doing some thinking, I added a smaller Arendal Sub1 (I've actually got a another one on the way to me) behind my screen (after using REW room sim) to try and help with these nulls, I also ordered a minidsp.
These are my new results:
I think it is quite obvious that adding the 3rd sub with minidsp has given my a much better response, with now only a 1db dip at 23hz, the rest of my response is almost ruler flat.
This therefore suggests to me, that room placement is absolutely critical to help with the response in the room, but more so, below are the waterfall graphs from both the MP50 with 2 subs and 3 subs with my Marantz 8805 using Audyssey XT32 and a minidsp, again, room perfect is showing more ringing higher up the curve which tells me it isn't doing as good a job here either.
The bass sounds much better now.
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