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#97344 - 12/21/17 11:09 AM Re: REW for 976 [Re: mdanderson]
Beachbum1 Offline
Gunslinger

Registered: 02/11/17
Posts: 22
Loc: San Diego
Originally Posted By mdanderson
Here is graph of my PSA 15S sub response with REW EQ filters generated for the 976. REW Google photos


Those photos aren't showing. This message appears.
404. That’s an error.

The requested URL was not found on this server. That’s all we know.
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Enlightened Audio Designs Powermaster 1000
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RSL Speedwoofer
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#97346 - 12/21/17 11:19 AM Re: REW for 976 [Re: Beachbum1]
mdanderson Offline
Gunslinger

Registered: 04/14/01
Posts: 161
Loc: Garland,Tx. USA
Thanks for letting me know. I will work on that.
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Paradigm Studio 20v5-fronts
Paradigm Studio CC-490v5-center
Paradigm Studio 10v5- side surrounds,Monitor surround 3v7-bck surr
Oppo UDP-205/LG 65C6
Outlaw 976 prepro/ Emotiva BasX A-700 amp
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#97349 - 12/21/17 11:51 AM Re: REW for 976 [Re: Helson]
mdanderson Offline
Gunslinger

Registered: 04/14/01
Posts: 161
Loc: Garland,Tx. USA
Link is working for me.
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Paradigm Studio 20v5-fronts
Paradigm Studio CC-490v5-center
Paradigm Studio 10v5- side surrounds,Monitor surround 3v7-bck surr
Oppo UDP-205/LG 65C6
Outlaw 976 prepro/ Emotiva BasX A-700 amp
Power Sound Audio 15S

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#97354 - 12/21/17 08:14 PM Re: REW for 976 [Re: EEman]
975 destroyer Offline
Gunslinger

Registered: 09/07/15
Posts: 129
Loc: Georgia, US of A!
Originally Posted By EEman
Have you got to the part where it says if your system isn't minimum phase then parametric EQ isn't going to fix it?
You are so right!

Originally Posted By EEman
From this I take it that the first step should be identifying and fixing*any glaring problems in your room. Then re-run REW and tune in the parametric EQ.
...*or minimize their impact. See close.

From years ago I recall "pinking" a room or car. In a room making a few small, sometimes mi-nute, location or angle changes made a big dif. In bi amped or tri amped car, just a tiny gain adjustment would typically then suggest, but not require small/subtle GEQ tweaks. From there client could "season to taste". We found those that had decent home systems as reference were downright pleased as is!

I'll close w/to I've posted on other related threads:

1. Know your system's specs. Use the f3 as reference and cut ABOVE to level and smooth; NEVER boost near, @, or below the f3.

2a. be careful boosting below 200hz;
2b. be very careful boosting below 100hz;
2c. be VERY, VERY careful boosting below 50hz.
2d. Be EXTREMELY careful boosting below 30hz even if your speaker/sub is rated into the teens. TRY location adjustments & room treatments.

3. EEman please chime in. Boosting any frequency exponentially ups the demands upon your AVR or amp. Moderate EQ changes also intros some phase shift; big EQ changed even more so.


Edited by 975 destroyer (12/21/17 08:15 PM)
Edit Reason: Typo

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#97379 - 12/23/17 12:50 AM Re: REW for 976 [Re: 975 destroyer]
mdanderson Offline
Gunslinger

Registered: 04/14/01
Posts: 161
Loc: Garland,Tx. USA
Originally Posted By 975 destroyer
Originally Posted By EEman
Have you got to the part where it says if your system isn't minimum phase then parametric EQ isn't going to fix it?
You are so right!

Originally Posted By EEman
From this I take it that the first step should be identifying and fixing*any glaring problems in your room. Then re-run REW and tune in the parametric EQ.
...*or minimize their impact. See close.

From years ago I recall "pinking" a room or car. In a room making a few small, sometimes mi-nute, location or angle changes made a big dif. In bi amped or tri amped car, just a tiny gain adjustment would typically then suggest, but not require small/subtle GEQ tweaks. From there client could "season to taste". We found those that had decent home systems as reference were downright pleased as is!

I'll close w/to I've posted on other related threads:

1. Know your system's specs. Use the f3 as reference and cut ABOVE to level and smooth; NEVER boost near, @, or below the f3.

2a. be careful boosting below 200hz;
2b. be very careful boosting below 100hz;
2c. be VERY, VERY careful boosting below 50hz.
2d. Be EXTREMELY careful boosting below 30hz even if your speaker/sub is rated into the teens. TRY location adjustments & room treatments.

3. EEman please chime in. Boosting any frequency exponentially ups the demands upon your AVR or amp. Moderate EQ changes also intros some phase shift; big EQ changed even more so.


Thanks for your advice and input given by EEman as well. Right now I am using the EQ filters generated by REW for my 976 with my subwoofer only. Here is what I got.

Freq. Gain Q
57Hz -19.5 2.0
99Hz -14.5 3.6

With the EQ engaged on the 976 the bass is quite smooth decent output.
_________________________
Paradigm Studio 20v5-fronts
Paradigm Studio CC-490v5-center
Paradigm Studio 10v5- side surrounds,Monitor surround 3v7-bck surr
Oppo UDP-205/LG 65C6
Outlaw 976 prepro/ Emotiva BasX A-700 amp
Power Sound Audio 15S

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#97382 - 12/23/17 01:39 PM Re: REW for 976 [Re: Helson]
975 destroyer Offline
Gunslinger

Registered: 09/07/15
Posts: 129
Loc: Georgia, US of A!
Do I see -19.5 & -14.5 @ 57hz & 99hz respectively? I say "WOW" but good. What's your sub's f3?

I'm relieved that REW/976 connect are separate! For some time I HAD this notion REW was some how "wired" to the 976 PEQ DSP. That when ya took the readings, ya pressed a button and, bam, (one channel at a time) system EQ'd! But you couldn't see the proposed changes or override any extreme settings.

Awesome! Merry CHRISTmas!

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#97387 - 12/23/17 05:11 PM Re: REW for 976 [Re: 975 destroyer]
mdanderson Offline
Gunslinger

Registered: 04/14/01
Posts: 161
Loc: Garland,Tx. USA
Originally Posted By 975 destroyer
Do I see -19.5 & -14.5 @ 57hz & 99hz respectively? I say "WOW" but good. What's your sub's f3?

I'm relieved that REW/976 connect are separate! For some time I HAD this notion REW was some how "wired" to the 976 PEQ DSP. That when ya took the readings, ya pressed a button and, bam, (one channel at a time) system EQ'd! But you couldn't see the proposed changes or override any extreme settings.

Awesome! Merry CHRISTmas!


You are correct with those readings. As for my sub's f3, I don't know what f3 means. You are also right about REW not being directly connected to the 976. It was no big deal though. I just copied the generated filter settings to the EQ of the 976.
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Paradigm Studio 20v5-fronts
Paradigm Studio CC-490v5-center
Paradigm Studio 10v5- side surrounds,Monitor surround 3v7-bck surr
Oppo UDP-205/LG 65C6
Outlaw 976 prepro/ Emotiva BasX A-700 amp
Power Sound Audio 15S

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#97390 - 12/23/17 06:34 PM Re: REW for 976 [Re: Helson]
975 destroyer Offline
Gunslinger

Registered: 09/07/15
Posts: 129
Loc: Georgia, US of A!
f3 is, in this case, your sub's LF cutoff. For example my towers' f3, per Polk, is 35hz. My front sub rated & tested to 20hz.
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#97391 - 12/23/17 06:54 PM Re: REW for 976 [Re: 975 destroyer]
mdanderson Offline
Gunslinger

Registered: 04/14/01
Posts: 161
Loc: Garland,Tx. USA
Originally Posted By 975 destroyer
f3 is, in this case, your sub's LF cutoff. For example my towers' f3, per Polk, is 35hz. My front sub rated & tested to 20hz.


The PSA website has my sub rated down to 19Hz.
_________________________
Paradigm Studio 20v5-fronts
Paradigm Studio CC-490v5-center
Paradigm Studio 10v5- side surrounds,Monitor surround 3v7-bck surr
Oppo UDP-205/LG 65C6
Outlaw 976 prepro/ Emotiva BasX A-700 amp
Power Sound Audio 15S

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#97427 - 12/27/17 11:22 AM Re: REW for 976 [Re: AvFan]
aeroguy Offline
Gunslinger

Registered: 03/09/07
Posts: 26
Loc: Folsom CA
Originally Posted By AvFan
So I have a MacBook Pro with ethernet, firewire, thunderbolt, and two USB ports. One USB port will be used by the mic. Thunderbolt to HDMI seems to be easy using an adapter but which MacBook port is best for using REW with the 976?


Use your Thunderbolt port. I have an iMac and have been playing around with REW prior to installing the 976. The latest Beta version of REW for MAC (5.19) has been updated to include equalizer settings for the 976 (Nice). With 5.19, you will be able to access each individual channel in the measurements window after setting up the HDMI cable and powering on the 976. You will need to select HDMI out from the Sound Preferences panel on the MAC.
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