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post #1 of 6 Old 03-17-12, 01:26 PM Thread Starter
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Sub EQ

Hello All,

I spent lots to try and get the perfect bass and am still working on it. I have a Paradigm Sub 2 and a Velodyne SMS 1 going through an Anthem Statement D2v. When I run ARC my bass sound very good but if I tweak with my Velodyne SMS 1 I screw it up. My question is should my bass response curve roll off at a certain frequency as with the EQ I can get it pretty flat from 15hz to 100hz but it's too boomy, maybe if it rolls off at say 30hz that would help? I have yet to get involved with REW but will in the near future when I get time to learn about it.

John
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post #2 of 6 Old 03-17-12, 01:42 PM
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Re: Sub EQ

If ARC is making it sound good, then why screw it up with the SMS-01. The velo unit isnt as advanced as ARC so I would stick with that. If your finding it too boomy then moving the sub is probably the best thing you can do, its not in a corner is it?

You dont want to lose extension, and is likely not the low frequencies under 30hz causing the boom anyway. The goal really is to try create a perfect LRC where the sub and mains cross, and to get the sub response as flat as possible with maximum extension.
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post #3 of 6 Old 03-18-12, 11:18 AM Thread Starter
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Re: Sub EQ

The sub was in the corner and then I moved it about 4 feet from the corner, did not know that ARC would do a better job than a sub eq. The ARC graph shows a good line from 20 hz to 100hz and then drops off, if I look at what ARC did with the sub eq graph there is a 10db dip at 50 hz that I thought I should try and fix. But if ARC doesn't show that dip and the sub eq does and you say that ARC is more advanced, maybe I will just bypass the eq. Thnaks
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post #4 of 6 Old 03-18-12, 11:34 AM
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Re: Sub EQ

Its just that the velodyne unit is an older unit now, while ARC is a fairly new and pretty advanced system that acts in the time domain etc as well. The resolution on the velodynes display may be greater, or the ARC produced graph may be more smoothed, which would lead to differences in the graphs even if the system measure very similarly. You might not be able to actually boost out that dip, it might be a room null meaning it wouldnt be possible to boost it out with any real meaningful effect.

How does it sound with just the ARC calibration done. If you like how it sounds, then its all good anyway isnt it? You could of course verify any results by using REW, which might be worth doing, especially if you feel things still arent quite right.
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post #5 of 6 Old 03-19-12, 05:51 PM Thread Starter
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Re: Sub EQ

Thanks for the replies Dan,

It actually sounds great with ARC only for movies and such, the reason I bought the eq was because my system lacks a kick to the chest with very loud music, the music actually sounds very good too but I like to feel it at very loud levels. So I thought I could get a house curve going with the eq to try and achieve that kick. I am very interested in working with REW when the time comes just to get a better idea of what is going on here. I have also found out that the sub 2 has very low distortion so that even takes away from the kick to the chest also, but after hearing this sub I don't think I would change it, although I thought of selling it and getting 4 Submersives.
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post #6 of 6 Old 03-19-12, 05:55 PM
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Re: Sub EQ

It is a very nice sub, and I have heard one albeit it quite briefly, but still it impressed immediately, and I am not that easy to please in that department. Perhaps you could just try increasing the sub channel a touch when your playing music, sometimes a simple tweak like that can actually make a difference.

I would encourage you to get to grips with REW though. There is nothing wrong with tweaking your setup to try improve how it sounds to you.
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