Uli Behringer of The Music Group Q&A

Re: Uli Behringer of The Music Group Q&A

Hi everyone,

I signed up to this forum to specifically find out when the Turbosound IQ speakers are coming out. Andrew Pardoe, thanks for being here to answer questions. How are the IQ and Siena speakers different? Which one is more higher priced? My dealer doesnt even know.
 
Re: Expanding on FIR vs IIR

IIR, FIR and the different types thereof all have their benefits and trade offs of course. I believe that in some applications FIR: especially Linear Phase FIR filters are used because it's an easy shortcut to a 3/4 way decent system voicing. I've seen systems that have latency of 10ms or more due to FIR and Linear Phase being used down to relatively low frequencies. Correct implementation of IIR can in many cases give the correct phase components on and off axis without the need of FIR thus allowing low latency.

Andrew,

Let me first say that I have no ulterior motives here other than to continue the dialog on this topic, as it is one of general interest to me. The reason I decided to compose a reply is that, in my personal experience, few sophisticated users of FIR processing for loudspeakers are utilizing naive brickwall linear phase crossover filter schemes.

Since the axial components of most loudspeaker transducers are predominately minimum phase, recursive minimum phase filters (e.g. biquads) are the right approach for dealing with the predominance of linear transducer phenomena. If you are careful, the off-axis components can also be fairly well behaved. Of course that still leaves one with the aggregate non-minimum phase behaviors, including the crossover response, with the usual choice of an allpass class filter response target (i.e. Linkwitz Riley)


Also there are some psychoacoustic benefits to IIR such as no pre-ringing of the impulse response and no theoretical end to the impulse response, these are both factors present in 'real' sound that may come from acoustic instruments, voices etc. Although, for example, Linear Phase filters may more accurately reproduce signals on an oscilloscope or when transfer functions are viewed in the frequency domain...

In a perfect world the pre-ringing components of the naive brickwall would cancel each other in the adjacency of the crossover point, but having this occur even for the on-axis listening case is questionable to my mind. Thus, the FIR that people are now developing aren't classic brickwall filters. One common alternative approach is applying an FIR inverse of the global allpass response before the conventional crossover filters.

Another goal with TLX is to be able to provide a set of equalisation points that can be used in a controller with a relatively low DSP horsepower so that the systems would be available to a wider audience and the user could utilise already purchased equipment. Simplicity done well usually just sounds better.

Since the deviations in implementations of things like biquads and the bilinear transform between various audio dsp platforms are well documented, the chances continuity of inter-system performance on the variety of lower horsepower DSP platforms is far from assured. This has burned more than one manufacturer over time, e.g. the wide variability in EAW KF850 systems or Vertec before V4 locked presets. To my mind this leaves manufacturers with three alternatives:
  1. "Locked" dsp hardware (ever more common)
  2. Specific processors and programs for said processors (the Fulcrum Acoustics approach)
  3. Processing transfer functions available for the (sophisticated) end user to match (EAW and EV offer these)

We have always gone to great lengths to create the best possible electro-acoustic systems with the minimum need for equalisation. Better sound quality is always achieved by making the components and acoustic systems work correctly in the first place rather than having to 'fix' them with DSP afterwards.

Many manufacturers would agree with you on this, but I'd like to suggest a counterpoint, or at least a modification. The implicit assumption in this statement is that "work[ing] correctly" means drivers with the most consistent axial magnitude behavior. I would suggest that this not the most important transducer trait. Once the axial magnitude response of a driver can be rendered an arbitrary blank slate through use of DSP, this opens up flexibility to design transducers with maximum performance along other criteria (e.g. output, linearity, of-axis consistency, thermal performance, etc.)

The folks who design transducers, amplifiers, and DSP algorithms for small devices like cell phones are eating the proverbial lunch of the pro audio industry in terms of sophisticated approaches to dealing with both linear and non-linear driver behavior using open and closed loop techniques. Ever increasing use of DSP in our industry will help us traverse along the trail the small driver designers are blazing currently.
 
Re: Uli Behringer of The Music Group Q&A

Why buy a product from a manufacture who refuses to answer your questions?

Somehow they managed to call me at Peavey... Hell they still call me over a decades after I left... (no please do not call me).

But while I was still working a Peavey, if service couldn't answer the customer's question, they had my extension in speed dial.

I do not miss that at all.... :-) I don't miss trade shows, but I do miss some of the industry people... you know who you are.


JR
 
Re: Uli Behringer of The Music Group Q&A

Dear Sam,

Apologies for the late reply, however we wanted to make sure we provide accurate data for customers who intend to use it with road cases, etc. The dimensions are now online on the MIDAS site.

We intend to ship the first consoles around June/July.

Thank you for your interest in MIDAS.

Best,
Chase McKnight
Specialist, Channel Marketing
MUSIC Group
MIDAS
 
Re: Uli Behringer of The Music Group Q&A

Hi Dirk,

The compression driver coils are pure aluminium and CCAW (copper clad aluminium wire) on the TLX43 and TLX84 respectively. Combined with advanced magnetics, the low mass coils give higher output and the low impurity aluminium produces a sweeter sound.
TURBOSOUND uses standards such as cast aluminium chassis drivers, weather resistant cones, birch plywood enclosures and tough touring paint, all are implemented on TLX. The flying system has been engineered for ease of rigging and 100% safety, and complies to the most stringent BGV-C1 certification. The final voicing is done using a source-coherent minimum phase method that equals and betters linear phase methods (currently so fashionable) for frequency response, time alignment and off axis summation, whilst delivering the performance with an absolute minimum propagation delay.
This makes the system ideal for live performance and announcements where ‘lip-sink’ to the performer is very desirable. This voicing method also provides seamless subwoofer integration and outstanding sonic detail.

An off topic question for Andrew,

What is the legacy product support like? What are the plans for driver, re-cone kits and HF diaphragm replacement supply of non Music Group era products? Understanding you have no crystal ball, can you guess if replacement parts for new products will be immediately available?
 
Re: Uli Behringer of The Music Group Q&A

An off topic question for Andrew,

What is the legacy product support like? What are the plans for driver, re-cone kits and HF diaphragm replacement supply of non Music Group era products? Understanding you have no crystal ball, can you guess if replacement parts for new products will be immediately available?

Hi Brent


There is no simple answer to your question as we are also using many drivers from companies such as B&C, Celestion etc. If there are specific questions I suggest to contact [email protected]
 
Re: Uli Behringer of The Music Group Q&A

[FONT=Times New Roman, serif]Hello Uli, just seeing if we can get an update on your upcoming products and overall state of things. It would be nice to hear from you and not from one of your employees. :)~:-)~:smile: [/FONT]
 
Re: Uli Behringer of The Music Group Q&A

Forum goers,

We've just gotten a very exciting opportunity from The Music Group. They have asked if we would be interested in doing a moderated Q&A with Uli Behringer, and of course we said yes. We're going to collect your best questions and submit them to Uli for his answers. This should be a great opportunity to learn a little more about the industry, several of our most beloved brands, and the future of manufacturing for Pro Audio.

The format is thus:
  1. Post your questions here. One question per post, please.
  2. On May 15, or when we have at least 10 good questions, whichever happens first, we will close this thread.
  3. Posts with the most "likes" win. If you can't like a post, ask a friend to like it for you.
  4. Those questions will be forwarded to Uli Behringer and his replies will be posted in another thread for further discussion.
Posts not in the spirit of this community will be deleted. I think that says all I need to say about that.

[Edit: Since Mr. Behringer has decided to reply in somewhat real time, which seems to be working very well, we will abandon this stated format]

Hi Everybody,

I am new here on the Forum.
I have DCX2496. Is there any news or rumors that DCX2496 would be 'upgraded' with new DSP such as ADSP21369/469, that would enable more PEQ, GEQ, even with 8 audio outputs?

regards
ivica
 
Re: Uli Behringer of The Music Group Q&A

Uli,

Your writing in this thread has impressed me, however what does not is the customer service your company provides. It is nearly impossible to find a telephone number for Behringer or Music Group, and when you finally find one it leads no where. I went so far as to contact Sweetwater. They gave me the number they had on file for Music Group and it too went nowhere.

Ethan
 
Re: Uli Behringer of The Music Group Q&A

Hi Ethan

thanks for reaching out.

If you go to our Brand Support sections you will find multiple options to contact our Care centers:
http://www.behringer.com/EN/Support/index.aspx

Under "Find a Service Center" you will further find a list of service centers, of which one is our own in Nevada. The Music Group listing contains email address plus phone number.

You can also simply contact [email protected] or visit our forums.

I hope this helps.

Uli
 
Re: Uli Behringer of The Music Group Q&A

I have DCX2496. Is there any news or rumors that DCX2496 would be 'upgraded' with new DSP such as ADSP21369/469, that would enable more PEQ, GEQ, even with 8 audio outputs?

Ivica,

Please start a new thread. This one has seen more than a year since the last reply, and it has very little to do with your topic.

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