DSP options?

diyAudio Member
Joined 2007
Playing around with simulations I think I am going to need a lot more power than I currently have available. That is with the JB program set to illustrate a 6dB boost at a Q of 1 which was how the old pre-amp was set.
I think I need some better grunt
 

Attachments

  • Vega124 .png
    Vega124 .png
    354.3 KB · Views: 154
diyAudio Member
Joined 2007
I'm going to be using the Behringer unit, having been able to sell the analogue XO it makes more sense to be
EDIT
Thanx for the link tho.
It might be a while until I get this system up and running again, I've just spent 3 days in the local cardiac ward dealing with an attack of cute Pericarditis and I'm a bit weak and tired. Out of action for a week or so.
 
Last edited:
diyAudio Member
Joined 2007
Need some new interconnects. What is peoples experience with cable length for easy manipulation in a home set-up?
I might just buy them instead of soldering up my own and there is only a dollar difference between the 1 metre and 2 metre length.
Not buying Audiofool cables just standrd "Pro" stuff.
Thanx for your good wishes and after 3 days of treatment I am starting to feel almost human again
 
Administrator
Joined 2004
Paid Member
I've found longer cables to be problematic in terms of mess and space utilization and buy the shortest cables I can get away with - as long as there is enough slack that I can pull a component out far enough to disconnect it without being Houdini that is good enough. (At 64 that's a big ask.. LOL)

My system runs mostly on balanced cabling of 1 meter length, there are a few cables like the ones from the DSP to the crossovers which are 4 meters in length and 3 meter cables from the A810 to the line stage. It's actually a small room.

Sorry to hear about the pericarditis, hope you are quickly on the mend.
 
diyAudio Member
Joined 2007
Medications and painkillers seem to be working, side effects bearable. just as well we have plenty of toilet paper tho.
Most common ready made locally are 1500mm long so that's what I'll probably get then. I know 600mm is far too short to maneuver components
 
Likely that is an opinion firmly endorsed by those who sell expensive mods for the Behringer and perhaps also by many of those who paid a lot of money and effort (and some ruined mother boards) to install the mods.

It seems unlikely to be the opinion of those many thousands of professionals and amateurs who bought and may have re-bought the DCX over its long life and popularity. Nor is it likely the opinion of folks like me who ever measured the exceptional FR, distortion, and S/N of their units, mod sellers aside.

BTW, any anxieties, real or imaginary, about shortcomings of the input analog stage can be addressed by driving the DCX with a digital signal and that is becoming more conventional now.
 
Likely that is an opinion firmly endorsed by those who sell expensive mods for the Behringer and perhaps also by many of those who paid a lot of money and effort (and some ruined mother boards) to install the mods.

I do not know any of those people. I WANTED it to work.but, while it smoothed out the FR, it also reduced the sound quality to unlistenable crap. YMMV.
I used analog BTW.

As the saying goes, 300 million people can't be wrong.......
 
I also don't agree with Chuck on this, I won't claim the DCX is the greatest processor on the planet but it's not going to be the weak link in most systems either. I suspect Chuck has inadvertantly uncovered the poor quality of some of his recordings(a ruler flat FR will do that) or that he doesn't like the sound of a perfectly flat FR, well no surprise there most people don't. There are a small number of people on the web that trash the DCX but in every case I have seen they are incorrectly attributing some effect they have heard to the processor when in fact the source was somewhere else in the system. For example on one of the PA forums I visit one person claimed the limiters in the DCX are terrible crunchy noise makers but in my experience they are completely transparent, I have even seen bench tests that demonstrate that the limiters produce no distortion of the waveform whatsoever so it's clear to me these people are overdiving something else in the signal chain but there is no convincing them of it.
 
Administrator
Joined 2004
Paid Member
Moondog how are you doing? Any health updates?

Ben, I didn't like the older DCX-2496 I experimented with a few years ago before settling on the MiniDSP SHD which I have been pretty happy with. The DCX is more oriented towards crossover duties with some EQ capability, the SHD implements Dirac and I use it for room/speaker correction with line level analog crossovers - it also includes PEQ and 2 way crossover options. The SHD has a lot of other fearures I don't need or use. I use it as a processor through the balanced analog I/O.
 
Hi Bentoronto and conanski. I wish you are right and I dd something wrong. I bought it new March 2010.
I used it on my Seas
https://www.madisoundspeakerstore.c...-003-e0044-seas-excel-nextel-cone-4.5-woofer/
Running full range and I did not want to mess it up with passive x-over.

Nope, I was excited to hear relatively flat F-R ---- for about 5 minutes until started picking up on the phase shifts (?). Strange, but my Denon UD-M30 mini system uses tone controls (100 and 10,000Hz) with no audible effects. Attach graphs with and without the Denon tone controls.

Are you running yours digital or analog? That is the only thing i can think of.

Kevinkr, Seems you also liked the minidsp better. I have been recently looking into Nano (except N/A due to no more parts) and also Mini DSP won't run on windows XP. So now there is the Dayton unit which will run on XP.

I can now get a transport so could put it between and do pure digital if you think that would help I could buy the Behringer DCX2496 PRO which they say can run digital I/O.
 

Attachments

  • Seas W12-CY003 F-R.pdf
    10 MB · Views: 72
Last edited:
Member
Joined 2005
Paid Member
The thing about DSP that makes it so attractive is how quickly you can setup a crossover

but whether DSP, or ASP, or passive crossovers, is that you really gotta know what you’re doing.

If you jump into DSP (or ASP or passive) without good foundation knowledge about cabinet design, taking reliable measurements, and practical considerations in crossover design, it actually even easier to make mistakes quickly.

so It might be good to your own personal liking, or it might be bland.
It’s hard to go completely
down the wrong path, because you don’t have to wire/solder anything up. But It’s still a shot in the dark at best.
.
If the following phrases sound like gibberish to you then you can’t blame the unit. It’s a user error. You need to go back and get a grasp of the basics of crossover design.

In no particular order

-Ground plane, quasi-anechoic; merging of baffle diffraction compensated near field with to far field measurements
-off axis response, polar response; power response.
-phase matched at crossover point(s)
-baffle step compensation and relationship with speaker placement within a room
 
Last edited:
Administrator
Joined 2004
Paid Member
TK, that's a great summation of the pitfalls. I have line level analog crossovers of my own design and use the SHD to address speaker FR imperfections (within reason) and speaker/room interactions. Finally, I am pretty happy with the results but there have been an awful lot of iterations of the target curve and evolution of my measurement technique. It takes understanding and expertise to use DSP effectively, after 3 years I'm still learning - and it was a much steeper learning curve than I had imagined.

I used analog EQ for a number of years before switching to DSP, it was quite possible to get terrible results with ASP as well, but I never achieved the level of performance with ASP that I have with DSP.
 
Last edited:
I worked quiet a lot with Behringer dsp's from the early 2000's to now (mostly in p.a. settings, but also in hifi settings) for others, and they did improve a lot but are still not good enough to be an option for me. The weak point is not the dsp, but the analog part of the system and the convertors. It's improving fast (like all Behringer equipment) but not there yet with the latest version i heared back in 2019. But they come from far, the early 2000 versions were crap. I suspect that if they keep improving in the rate of the last decenium, they will become very good options soon. The real weak point of Behringer today is reliablity actually, not sound anymore. That is for amps, dsp's and their other stuff in general but that is also improving a lot, which i think is very good.