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post #31 of 191 Old 08-26-08, 11:40 AM
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Re: REW Noob

Ok, graph #1 on Post #20 looks like a winner to me. You could set a target curve at 78dB and have very few filters required to tame your peaks.
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post #32 of 191 Old 08-26-08, 12:11 PM Thread Starter
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Re: REW Noob

The only thing I did not like about that set-up was that it just died after 20Hz.

What do you think about turning up the main sub another .5 on the volume knob? I am still within the 5dB hot range overall for the subs. I am only running 78.5dB for subs versus 75dB for highs (using receiver's pink noise).

Oh yea! The other reason I raised the 20-30Hz section with filters was that I could not lower the ~16Hz section with a filter if it gets boosted too much.
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post #33 of 191 Old 08-26-08, 12:34 PM
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Re: REW Noob

I would turn it up and ya, the BFD can't touch 16Hz...

I like the sound of my room when I have the subs running hot. This is how I progressed: 1 sub: set at 82dB, 2 subs: each set at 78dB and they produced 82dB and 4 subs: each set at 75dB and they produce 81dB.

I am going to try some boost on my recent graph and see what happens.
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post #34 of 191 Old 08-26-08, 12:41 PM Thread Starter
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Re: REW Noob

What would be better....

1. Creating a filter with a +6 gain to boost the 20-30Hz range and have it flat to 16Hz, or
2. Turn up the sub volume and have another spike at 16Hz?

I thought we wanted as flat a bass line as possible.
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post #35 of 191 Old 08-26-08, 01:19 PM Thread Starter
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Re: REW Noob

Well I tried turning up the main sub another .5. Now I get 75dB for the mains and 79dB for the subs when playing the pink noise from the receiver. I also set the target at 78dB.
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post #36 of 191 Old 08-26-08, 02:05 PM
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Re: REW Noob

A lot of the bass you're hearing now will be coming from that 50Hz peak............
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post #37 of 191 Old 08-26-08, 02:09 PM Thread Starter
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Re: REW Noob

Quote:
brucek wrote: View Post
A lot of the bass you're hearing now will be coming from that 50Hz peak............
Yup. It is time to tame that beast. How does the rest of the graph look? What are your suggestions for filters?
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post #38 of 191 Old 08-26-08, 02:21 PM
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Re: REW Noob

Quote:
What are your suggestions for filters?
That's what REW is for............

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post #39 of 191 Old 08-26-08, 02:34 PM
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Re: REW Noob

Quote:
weverb wrote: View Post
What would be better....

1. Creating a filter with a +6 gain to boost the 20-30Hz range and have it flat to 16Hz, or
2. Turn up the sub volume and have another spike at 16Hz?

I thought we wanted as flat a bass line as possible.
This is fun, right!

Your constant is the peak at 50Hz. What does it sound like in your room without the 50Hz peak? I think you are ready to find out with the purchase of a BFD or the Anti-Mode.

I am chasing the smoothest sound possible in my room and to my ears and the REW shows me graphically what that looks like. I like the Hard Knee House Curve for movies in Max Ext Mode on the subs and I like the standard house curve for concert movies in Max Output on the subs, YMMV.

The last time I looked, zzsounds.com had the BFD for 1 Ben Franklin.
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post #40 of 191 Old 08-26-08, 02:38 PM Thread Starter
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Re: REW Noob

Without any smoothing, it said there was a peak at 49.1 and 71 Hz. It created a filter at 49.1 Hz with a -14 gain and one at 71Hz with -9 gain.
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