Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 28 Old 10-11-08, 11:40 AM Thread Starter
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Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

I have found the Sabine GRQ-3102S. I was able to pick it up off ebay for under $80 shipped. It is an option instead of the BFD, SMS-1, or Anti-Mode....

It is a graphic/parametric equalizer (plus more) that you control by computer. There are no flashing lights or anything distracting. You can still use REW to help develop your filters and then you just plug them in. I will be doing more of a write up once I get to plug it into my set-up. So far I have updated its firmware and been able to do programing no problem. I have attached a picture of the program screen where you can clearly see where you can adjust the delay as well as many other features. All these features actually work all at once. It looks like the only thing this unit does not do are shelving filters. It will do high and low pass filters though. You can go to Sabine's website (www.sabine.com) and look under the discontinued section for the manual and other information. Here is a link to a review of the Graphi-Q line:

http://www.proaudioreview.com/pages/s.0029/t.3279.html

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post #2 of 28 Old 10-11-08, 11:57 AM
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

Nice find...

Hmmm... reckon Sabine would be interested in helping us develop a new model?

EDIT: Oh well... I doubt it since their cheapest model is around $550 street price. This would definitely only be an alternate solution if you could find it on the cheap like above.
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post #3 of 28 Old 10-11-08, 12:04 PM Thread Starter
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

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Sonnie wrote: View Post
Nice find...

Hmmm... reckon Sabine would be interested in helping us develop a new model?
Their tech support was great to talk to. They are located near to where I live. The owner is a UF graduate and has the company located in Gainesville. If there was enough interest they may entertain the thought. Although they do have current models that have the same capabilities, but they have added a crossover option to the units. SO basically now, they are more load with options.
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post #4 of 28 Old 10-11-08, 12:19 PM
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

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You can still use REW to help develop your filters and then you just plug them in.
You'll have to be sure to investigate how the Sabine defines bandwidth and Q so that the filters REW suggests, actually match. Each equalizer is different, and so REW allows the selection of type in the equalizer pulldown to ensure the filter suggestions are valid.

For example, the DSP1124P, it defines bandwidth between the half gain points as:

Bandwidth (Hz) = centre frequency*(BW/60)*sqrt(2)

With the formula for the relationship between Q and BW being:

Q = 60/[(BW/60)*sqrt(2)]

For the FBQ2496 the bandwidth control adjusts in 1/60 of an octave steps from 1/60 to 5/60 of an octave, and so the formula becomes:

Q = sqrt(2)/BW

and so on..................

SMS
The filter bandwidth in Hz between the half gain points is given by:

Bandwidth = centre frequency/Q

TMREQ
The filter bandwidth in Hz between the half gain points is given by:

Bandwidth = centre frequency/Q

R-DES
The filter bandwidth in Hz between the half gain points is given by:

Bandwidth = 1.766*centre frequency/Q

Generic
The filter bandwidth in Hz between the half gain points is given by:

Bandwidth = centre frequency/Q

Well, you get the idea anyway........... you'll have to dig in their manual or support docs to find that

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post #5 of 28 Old 10-11-08, 12:25 PM Thread Starter
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

Thanks brucek for the information. I picked the "generic" eq in REW and it gave me the correct Q values (section labeled "Width") to plug in.
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post #6 of 28 Old 10-11-08, 05:44 PM
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

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brucek wrote: View Post
You'll have to be sure to investigate how the Sabine defines bandwidth and Q so that the filters REW suggests, actually match.
Yeah, I had that problem with the YDP2006: I'd plug in the recommended filter, then take a sweep and what I got didn't look anything like it was supposed to. IIR, the equalizer appeared to be over-shooting the gain, like a boost or cut would end up being deeper than it was supposed to.

weverb, can you get some better pics of the Sabine? The lighting should be in front of the subject, not behind it.

Regards,
Wayne



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post #7 of 28 Old 10-11-08, 06:02 PM
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

Quote:
Sonnie wrote: View Post
Nice find...

Hmmm... reckon Sabine would be interested in helping us develop a new model?

EDIT: Oh well... I doubt it since their cheapest model is around $550 street price. This would definitely only be an alternate solution if you could find it on the cheap like above.
weverb has dug up a treasure trove of discontinued pro-audio digital equalizers from companies like XTA, Shure, Sabine and Yamaha that can be had dirt-cheap on eEBay.

Quote:
weverb wrote: View Post
I have found the Sabine GRQ-3102S. I was able to pick it up off ebay for under $80 shipped. It is an option instead of the BFD, SMS-1, or Anti-Mode....
Does the Sabine have an auto-EQ function like the SMS-1 and Anti-Mode?

Regards,
Wayne



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post #8 of 28 Old 10-11-08, 07:34 PM Thread Starter
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

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Wayne A. Pflughaupt wrote: View Post
Does the Sabine have an auto-EQ function like the SMS-1 and Anti-Mode?
No, it does not.
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post #9 of 28 Old 10-11-08, 07:35 PM Thread Starter
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

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Wayne A. Pflughaupt wrote: View Post
weverb, can you get some better pics of the Sabine? The lighting should be in front of the subject, not behind it.
Sorry, it was just sitting on the floor with the overhead light on. Will get better pix later.
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post #10 of 28 Old 10-11-08, 08:50 PM Thread Starter
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Re: Alternative to BFD, FBQ, DEQ, Anti-Mode, SMS-1

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Wayne A. Pflughaupt wrote: View Post

weverb has dug up a treasure trove of discontinued pro-audio digital equalizers from companies like XTA, Shure, Sabine and Yamaha that can be had dirt-cheap on eEBay.
Here are a couple that Wayne was referring to:

Shure DFR11EQ
http://www.shure.com/ProAudio/Produc...R11EQ5_content

XTA DP200
http://www.xta.uk.com/discontinued.html

Sabine ADF-1200, ADF-2400, ADF-4000, Real-Q2, GRQ-3102, GEQ-3122
www.sabine.com


Last edited by weverb; 10-12-08 at 08:10 PM.
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