Behringer DEQ-2496 - Swiss Army knife (EQ, A/D, D/A, RTA)

Started by admin, May 26, 2016, 10:50:44 AM

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admin

I often still use this  for EQ and DI use  - it's a swiss army knife and one of the best things Behringer ever produced

DEQ-2496
http://www.music-group.com/p/P0146/Features




Owners Manual
http://www.parts-express.com/pedocs/manuals/248-661-behringer-deq2496-manual-41813.pdf

http://www.parts-express.com/behringer-deq2496-ultracurve-pro-digital-eq-rta--248-661



Ultra-high resolution 24-bit/96 kHz mastering processor featuring 32/40-bit floating-point DSP technology
Audiophile 24-bit/96 kHz A/D
- and D/A converters offering 113 dB dynamic range
4 concurrently selectable EQ modules (31-band graphic EQ, 10-band parametric EQ, Feedback Destroyer plus 3 Dynamic EQs per stereo channel)
Ultra-high resolution 61-band real-time FFT analyzer with additional auto EQ function for room and loudspeaker equalization
Unique VPQ (Virtual Paragraphic EQ) option allows parametric control of graphic EQs
State-of-the-art compressor/expander with peak limiter per stereo channel, additional stereo imager and stereo delay for delay line applications
Multi-functional level meters (peak/RMS, VU and SPL meter with dBA/dBC weighting via RTA/Mic input)
64 user memories for complete setups and/or individual module configurations
Separate mic/line input with phantom power for RTA and Auto-EQ applications
Balanced inputs and servo-balanced outputs with gold-plated XLR connectors, stereo aux output, AES/EBU and S/PDIF inputs and outputs (XLR and optical)
Professional Wordclock input and MIDI connections for full remote control, preset dumps and system updates
Open architecture allowing future software updates via MIDI
"Planet Earth" switching power supply for maximum flexibility (100
- 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving
3-Year Warranty Program*
Conceived and designed by BEHRINGER Germany



read about here
https://www.vguitarforums.com/smf/index.php?topic=88.msg20827#msg20827
https://www.vguitarforums.com/smf/index.php?topic=4945.0



The DEQ-2496 can also work as a Stereo Limiter / leveling amp, to solve the problem of the GR-55 preset patches being all over the place volume wise at gigs.

Since the internal final output Para EQ in the GR-55 lacks separate controls for left vs right, in addition to the wide range of GR-55 patch gain issues, I may find it best to place my DEQ-2496 between the GR-55 and the PA.

The benefits to this strategy is the the DEQ-2496 can work as a stereo leveling amp/limiter to make the patches more uniform in gain level, plus I can apply separate EQ left vs right, and send COSM AMPS to one PA mix channel and PCM tones to another - and apply different EQ to each from the stage, and not have to train the dude running the FOH PA.   

More about the DEQ-2496 here:

(page down to the 2nd unit)
https://www.vguitarforums.com/smf/index.php?topic=3118.msg20766#msg20766

admin

http://www.seoman.nl/deq2496/DEQremote.html

Ever wanted to control your UltraCurve by remote?

Here is a solution. DEQ2496remote latest versionUpdated 2-4-2014

Should be working on windows 7 (x64)
Tested on Win 8 64bit (desktop, not the phone simulator!)
Software is undercunstruction and free to use but at your own risk!!
There is a major thing wich allows the software not to work.
The sysex comando's are channelsetup depending.

If you send a dual-mono command to a stereo listener, the communication seems not to work.
So make sure that, if the software is in dual mono the DEQ is in dual mono aswell.

The software can switch the UltraCurve into any channel setting but the settings need to be equal in the first place.
The surprise comes when you load a sereo preset into a dual-mono software state.
that will render the software useless untill you think of switching the channel setup.
If you like it, please share the link to this page. Not the program itself.

After 150 pages of spam . i decided to stop the forum Sorry but bots and assholes really fucked it up.

At the bottom of the page are some older versions available















Chumly

I've heard many good things about them as well.

I've been using the Behringer VX2000 and HA4700 for a long time and they are both just fine and I've certainly gotten my money's worth.  I've found the  VX2000 to be considerably better than many in-house board's channel strips, and the HA4700 headphone amp to perform its function more than adequately.  I must admit however, like many products made in Asia, these are likely manufactured under horrendous environmental conditions, with the not-uncommon use of child labor, plus corrupt and punitive legal, political, prison and police systems. This makes me cringe every time I buy Asian electronics, or for than matter many other items from Asia these days.
I think it's much more interesting to live not knowing than to have answers which might be wrong. - Richard P. Feynman

chrish

Quote from: Chumly on May 27, 2016, 02:19:44 AM
I've heard many good things about them as well.

I've been using the Behringer VX2000 and HA4700 for a long time and they are both just fine and I've certainly gotten my money's worth.  I've found the  VX2000 to be considerably better than many in-house board's channel strips, and the HA4700 headphone amp to perform its function more than adequately.  I must admit however, like many products made in Asia, these are likely manufactured under horrendous environmental conditions, with the not-uncommon use of child labor, plus corrupt and punitive legal, political, prison and police systems. This makes me cringe every time I buy Asian electronics, or for than matter many other items from Asia these days.
Yea, i share your concerns. We've discussed this before so i looked it up and the concept is called 'ethical consumerism'.  But where do you start, asian chips and other componants are even in products that are 'made' in the U.S. and we also have our own problems, envoirnmental and other wise, here. I'm starting to understand the concept of 'think globally, act locally'.  I always consider these issues on an ethical foundation as oppossed to a political foundation (i find political discussion to be boring as we humans are good at justifing any action or behavior we desire to take). When i've taken action against local threats to the conservation of wildlife habitat, for example, it's always been based upon whether or not existing laws and regulations are being followed.   

Elantric



Upgrade Behringer DEQ2496, DCX2496 and SRC2496

Behringer Mods is a website run by AudioSmile to offer modification products to upgrade the Behringer DEQ2496, DCX2496 and SRC2496. These high perforamnce circuits are availible as a kit or including an install service. The kits can also be used to upgrade other audio equipment.

Please select a page from the top menu to read more - while the same circuits are used to upgrade all equipment the functions of each unit are differnt.


http://www.behringermods.com/proof.html

http://www.behringermods.com/shop.html

http://www.behringermods.com/deq2496.html

The Standard DEQ2496

The Good:

The DEQ is sold by Behringer as a processor for mastering studios. It features graphic and parametric EQs implemented in the digital domain. To enable analog connections, it contains both an ADC and a DAC. Through a microphone (ECM8000) the DEQ can measure the response of a speaker / room combination and correct it to the desired target response. In the 20Hz - 300Hz range this is ideal for improving uneven resonant bass.

Input connections: 1 pair XLR analog, 1 AES/EBU digital and 1 Toslink Optical. Outputs connections: 1 pair Main XLR analog, 1 pair Aux TRS analog, 1 AES/EBU digital and 1 Toslink Optical.

A Problem:

The features of DEQ mentioned above are superb, however there is an achilles heel; the analog inputs and outputs have relatively high distortion compared to the best alternatives.



The solution - Modification

In fact, the DAC and ADC chips inside the DEQ are high-end items from AKM. The distortion is created by the analog buffer circuits, not the converters themselves. The solution is to replace the analog sections in their entirety with new circuit designs from BehringerMods. These upgrade circuits are available as a self-install kit or with installation provided by BehringerMods.

Output Circuit - The improved output circuit features LM4562 non-inverting buffers to provide a low noise, high impedance input. These are capable of feeding the very low impedances required to make the low noise differential floating output stage based on 4x LME49990 ICs. This output stage emulates a transformer such that it can provide the noise rejection capabilities of a balanced connection even over a single-ended line. Additionally the output voltage stays constant regardless of the method of connection.

The Behringer DEQ when modified with this new circuit is capable of less than 0.0005% THD and 117dB S/N ratio at it's analog outputs. The circuit alone can actually achieve even better figures and can be used to upgrade any DAC that has a differential voltage output, such as those based on the AKM AK4393, AK4396, Cirrus CS4392, CS4398, Wolfson WM8740, WM8741, WM8742.



Input Circuit - The improved analog input circuit is uses the Texas Instruments LME49724 IC, specifically designed for driving differential ADCs. The circuit can accept balanced or single-ended inputs. ADCs typically require a bias voltage, and this is provided by a dedicated LM285 voltage reference IC with additional filtering for the lowest noise level.

The Behringer DEQ when modified with this new circuit can achieve <0.0005% THD and 117dB S/N from the analog inputs. In conjunction with the digital outputs, the modified DEQ can serve as a reference class ADC for archiving vinyl and tape. Using the analog inputs and analog outputs, room correction can be applied to any source. The input circuit alone is capable of 123dB S/N ratio (4V rms input) and 0.00005% THD and can be used to upgrade any voltage input ADCs such as . AKM AK5393, AK5394, Cirrus CS5391 and others.



A short FAQ regarding these mods is available.
http://www.behringermods.com/faq.html


Pricing can be found in the the Online Shop

Proof of Performance- BehringerMods offer extensive proof of the value of our work. Please visit the proof page to see details.


https://www.audio-forums.com/threads/room-eq-in-the-time-domain-deq2496.111110/


















The Result

• Volume Controlled Output
• Lower Distortion inputs and outputs
• Floating connection reduces noise



https://www.audio-forums.com/


jm345

The Behringer DEQ2496 is still available new and reasonable used. Is it still recommended or is there anything else out there? I would like a 1u rack EQ that can save presets. Are any of the mods noted above necessary if I just use it for guitar? Thanks

Elantric

Quote from: jm345 on January 29, 2020, 08:04:20 PM
The Behringer DEQ2496 is still available new and reasonable used. Is it still recommended or is there anything else out there? I would like a 1u rack EQ that can save presets. Are any of the mods noted above necessary if I just use it for guitar? Thanks

Its still a decent standalone unit with MIDi Control ( I own two of them )

MANY Audio tools inside

https://www.gearslutz.com/board/music-computers/1206779-stereo-wideners-duy-wide-alternative.html


- there is a third party mod that lowers noise ( see posts above) 
https://www.behringermods.com/deq2496.html

https://www.behringermods.com/DEQ%20Instructions.pdf

kevorkian

If you don't need 31 bands and the dynamics processing, I'd take a look at the Source Audio EQ2 that was just announced at NAMM. Only 10 bands but also graphic and parametric EQ, presets, midi and much smaller.

https://www.sourceaudio.net/eq2_programmable_equalizer.html

jm345

I was using the SA Eq v1 pedal but switched to the new Boss EQ-200 and prefer it for several reasons. However, I have a rack space available and think that format would be more usable for me than a pedal. I do like the physical sliders on the Boss pedal and the recent firmware update increased the presets from 4 to 128.
https://www.boss.info/us/products/eq-200/

I am not sure how I would get along with the DEQ-2496 interface. I will have to check the manual or a video on how easy it is to quickly access and adjust the individual eq "sliders".

admin

Today  - many Mixers and Audio interfaces include internal DSP and very fine Win/Mac hosted GUI interface for control

Some RME Audio interfaces Include RME TOTALMIX with powerful EQ 


and some  MOTU  Interfaces also include  internal DSP  for Audio processing
https://motu.com/products/motuaudio/828x/cuemix-fx.html


jm345

Actually my guitar and vocals all go into a RME Fireface unit so I am using TotalMix Fx. But I haven't come across something that looks like a 10 band eq option. Admittedly, I have only scratched the surface of what TotalMix can do. 

admin

Quote from: jm345 on January 29, 2020, 09:57:16 PM
Actually my guitar and vocals all go into a RME Fireface unit so I am using TotalMix Fx. But I haven't come across something that looks like a 10 band eq option. Admittedly, I have only scratched the surface of what TotalMix can do.

its a Three band Parametric and Lo Cut sub filter per channel 


jm345

Quote from: admin on January 29, 2020, 10:30:54 PM
its a Three band Parametric and Lo Cut sub filter per channel 

Thanks. I have seen that in TotalMix FX but haven't tried to use it. I will check out the video. Not sure I want to do EQ via software and saving the scenes that way. I think my ideal is a 1u rack mount stereo EQ with physical sliders and memory for storing presets. The units I have seen with real sliders don't save presets and the racks with preset memory don't have physical sliders. The Boss EQ-200 pedal does both but I wish it was in a 1u rack format. Thanks for the input!


jm345

The DEQ-2496 looks like it will work for me. In the meantime I will keep using the Boss EQ-200. Thanks.

jm345

I picked up the DEQ-2496. Very happy with it. I am able to fine tune output for various guitars and save the preset. The 31 band EQ is is very useful to sculpt tones. Much better than the typical Bass, Middle, Treble controls. Thanks for the input.