Greetings everyone, it's been a while. Nice to see the masters of the DML universe still posting. After a few months of doing other things, I've returned to the home audio effort. I've been using my panels quite a bit and they sound just as good as they did six months ago -- since mine have 4 exciters each in their own panel, if one were to lag I'd know it. So, I'm still a huge fan of Dayton thrusters. On this recent round, I've been taking care of little things -- endless cabling / connectors / soldering, probably spent more on RCA/USB/speaker wire and components for my small setup than then amps and speakers.
As that effort is wrapping up, I'm looking to richen the main course. The question I don't believe I ever got around to asking you folks: what kind of amp works best with DML speakers? I have two class D 50x2 Fosi audio amps; one drives the LR top and the other drives LR bottom. I don't know how loud they go, seems like I still have plenty of room to crank beyond the loudest I've had them -- I've had them only to the point where I'm more worried about overloading the subs. So quantity isn't an issue for now, but as good as I think they sound, could I do better?
I've considered trying out those small tube amps, or getting a class A/B, upgrading op-amps, maybe a real pre-amp (I use my Steinberg audio interface)? What do you guys think?
As that effort is wrapping up, I'm looking to richen the main course. The question I don't believe I ever got around to asking you folks: what kind of amp works best with DML speakers? I have two class D 50x2 Fosi audio amps; one drives the LR top and the other drives LR bottom. I don't know how loud they go, seems like I still have plenty of room to crank beyond the loudest I've had them -- I've had them only to the point where I'm more worried about overloading the subs. So quantity isn't an issue for now, but as good as I think they sound, could I do better?
I've considered trying out those small tube amps, or getting a class A/B, upgrading op-amps, maybe a real pre-amp (I use my Steinberg audio interface)? What do you guys think?
I have used DMLs as mains, surrounds, and center channel. Photos and some discussion on the forum a ways back.
First demo with the film (Dune) blew everyone away.
Abstracta frames, provide a number of mounting options including hanging or gentle clamping. Search for my earlier discussion.
The framework of this DML seems a little thin
Does the frame need fixing or adding weight or making it stronger?
But the overall look is simple and clean
Very comfortable feeling
Hi aagas.
I don't remember seeing these panels before ?
What are the panels made from?
Steve.
I don't remember seeing these panels before ?
What are the panels made from?
Steve.
Interesting. Apparently Ben Zenker, author of many recent DML technical articles, is involved in this product.
https://xcite.duracom.eu/about-us/
One of his papers here:
https://www.researchgate.net/public...e_Specific_Damping_of_the_Boundary_Conditions
Eric
Ooh, it seems like they have more products under development. Some DIY kit and the "XT35-4" which, based on the higher model number, is probably a more powerful exciter:
https://xcite.duracom.eu/products/
https://xcite.duracom.eu/products/
Thank you Eric
This gives an excellent credit to the product.
It has the most detailed specifications.
Christian
The Abstracta, https://www.abstracta.com/ system uses 1/2" diameter steel tubing with zinc connectors. Very strong indeed. I considered filling the tubes with sand and epoxying the connectors, but these things sounded so good I never bothered to do it.
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I fiddled with different mounting things, but all of them worked fine acoustically. 7111 pretty well captured the effort.
3mm birch plywood. At some point a gave them a light wash of white paint. Didn't seem to change the overall impression of the sound much. They just seemed to sound like the instruments playing through them.
A purely subjective reply...
I've had the privilege and delight of having had some great amplifiers over the decades and having had access to great amplifiers - tubes, solid-state, super high end, and experimental ones. Of all these I had a particular affinity for the Pass A40s ;-)
I could (or at least I believed I could) hear real differences between the amps.
I also could (or at least I believed I could) hear real differences between vinyl, CDs, DVDs, tape, et al. Same with the advent of different digital formats, cables, speaker wire, and isolation tweaks.
Living with DMLs has changed all of these things for me. In my experience, the quality and realism of the kind of DMLs developed and discussed in this forum, so far exceeds those small differences between all that other stuff, that their differences just don't seem to matter so much if at all.
I find my DMLs (and all of the several versions I've assembled) very forgiving of amplification. I use Hypex amps to run my primary system, but only because I had them from a previous system.
I've run my panels on cheap amps my kids had. They still sounded great - engaging- musical!
Not certain what I'd try if I had to come up with new amps, but I don't think I'd splurge on anything fancy.
what about crossovers? Anybody use crossovers for their DMLs? I tried some 200hz a while back but thought it was cutting out too much. But there don't seem to be a lot of passive options. I've considered getting the Rolls 2-way crossover (as I've literally not found any other option) but curious what others are doing.
When I finally get my (dammed) back-ordered parts & tool to start my DML project,
I will be adding a woofer & super-tweeter. This means I will be building a crossover.
I'll be using a spectrum analyzer & microphone to determine the crossover design.
I wish I could tell you more.
Could you please tell me more about the "Rolls 2-way crossover"? I'm interested 🙂
I will be adding a woofer & super-tweeter. This means I will be building a crossover.
I'll be using a spectrum analyzer & microphone to determine the crossover design.
I wish I could tell you more.
Could you please tell me more about the "Rolls 2-way crossover"? I'm interested 🙂
https://www.parts-express.com/Rolls...ni-Crossover-w-Sub-Output-245-1184?quantity=1
I'm sure it's worth it to have around for testing if nothing else. I started looking at DSPs which seems like a better direction; that's probably why I haven't bought it yet.
I'm sure it's worth it to have around for testing if nothing else. I started looking at DSPs which seems like a better direction; that's probably why I haven't bought it yet.
Thanks for that,
I didn't realize you were talking about active crossover & bi-amping.
It looks like a nice product + made in USA.
I was amazed when I got my old Parts Express catalogue just how low cost things were in USD($).
Here in Australia all those products cost so much more.
I'm going to look at other Rolls products - out of interest.
( my crossover is going to be passive )
For fine-tuning, I'm going to use an analogue Yamaha graphic equalizer.
I didn't realize you were talking about active crossover & bi-amping.
It looks like a nice product + made in USA.
I was amazed when I got my old Parts Express catalogue just how low cost things were in USD($).
Here in Australia all those products cost so much more.
I'm going to look at other Rolls products - out of interest.
( my crossover is going to be passive )
For fine-tuning, I'm going to use an analogue Yamaha graphic equalizer.
Hi aagas.
I totally agree with these comments, I have had these exact experiences.
I used to play around with all sorts of amps wires CD players, you name it.
Now whatever I plug into my panels sounds fantastic.
Even my very cheap surround amp in my living room.
They produce such realistic sounds that I have not worried about cabling, amps and such things.
When instruments and sounds , sound so realistic, what more could you possibly want.
I used to try everything to squeeze just a little more atmosphere and detail.
But since I first heard dml , I have not felt the need to try and make minute changes to equipment , as the sound of dml is like night and day compared to other types of sound producers.
If I ever stop making different panels ,I am sure I will probably start thinking of other ways to improve the sound again.
But the system sounds so good I can't see that happening very soon.
As you say , those things only make minor changes that aren't that important, to me that is 😃
Steve.