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Author Topic: Dynacord PowerH Amplifiers  (Read 20860 times)

Jeff Kang

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Re: Dynacord PowerH Amplifiers
« Reply #10 on: August 17, 2007, 12:49:40 pm »

Glad to hear everything went well! I'm sure Jeff will take care of you!
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Jeff Kang
Custom Audio Inc.

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Creative Sound & Lighting
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Kaneohe, HI 96744

Pascal Pincosy

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Re: Dynacord PowerH Amplifiers
« Reply #11 on: August 17, 2007, 12:54:52 pm »

Hey Jeff,

Could you tell us a bit more about the DSP for the PowerH amps? I'm curious about the limiting features, and also if all the parameters are accessible from the front panel?
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Jeff Kang

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Re: Dynacord PowerH Amplifiers
« Reply #12 on: August 17, 2007, 02:10:09 pm »

The DSP in the RCM26 is everything you would expect from an on-board DSP system in an amp. It has a 5 band input parametric EQ. It has Input routing/mixing, this allows you to mix the two inputs to an output or make one input to both outputs or any variation of a 2x2 matrix. From there they have your typical crossover, bandpass eq, and EV's load monitoring window similar to the P-series load monitoring. In addition to this, They give you an additional feature, The FIR filter. FIR, or Finite Impulse Response filters are basically speaker preset files that EV/Dynacord produce for their individual speakers. This allows for corrective EQ and Phase compensation within the amp. This filter is multiple calculations per second and make hundreds of adjustments to the sound per second to keep the speakers working to the fullest potential.

Also with this you have multiple presets available for you to store your different rig settings into. I believe this is the only thing you can access from the front panel, only during power-up. While you have the RCM installed in the amp, the front panel level controls are disabled and all functions are controlled thru IRIS-Net.

Here's a link to the RCM-26 product page:
http://www.dynacord.com/wDynacord/en/produkte/detail.php?mar ket_id=2&category_id=4&family_id=27&product_id=1 57

if I've forgotten anything, I'm sure Jeff Taylor will fill in the rest...

Hope this helps a bit.
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Jeff Kang
Custom Audio Inc.

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Creative Sound & Lighting
-Technical Specialist
Kaneohe, HI 96744

Pascal Pincosy

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Re: Dynacord PowerH Amplifiers
« Reply #13 on: August 17, 2007, 02:25:39 pm »

Jeff Kang wrote on Fri, 17 August 2007 19:10

 In addition to this, They give you an additional feature, The FIR filter. FIR, or Finite Impulse Response filters are basically speaker preset files that EV/Dynacord produce for their individual speakers.


Just to note, Dynacords brochures do state that one can whip up their own FIR filters instead of just relying on presets.
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Jeff Kang

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Re: Dynacord PowerH Amplifiers
« Reply #14 on: August 17, 2007, 02:50:33 pm »

I have been told by the factory that it is unlikely that an individual can create a FIR preset. It was recommended that I have the factory do it to ensure that the preset is correct. They mentioned a lot of measurement and testing in a chamber.

*edit*
There is a default FIR that you can set a high pass and low pass to have a similar effect as a FIR, but it isn't quite as complex as the factor FIR.
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Jeff Kang
Custom Audio Inc.

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Creative Sound & Lighting
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Kaneohe, HI 96744

Pascal Pincosy

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Burning Man
« Reply #15 on: August 21, 2007, 08:30:29 pm »

Just spoke with Jeff Taylor of Dynacord, who's been pretty busy of late and hasn't had much time to check in here. I just got the OK from him to take the PowerH amps out to Burning Man!  Twisted Evil So we'll be hammering them hard for 5 days. The amps will be in a climate-controlled box to keep most of the dust out of the electronics, but still... And I'll be making good on my promise of pics for this one for sure. Plus I'll run a solid 2 Ohm sub load on one of these amps for at least one night during the week.
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Jeff Kang

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Re: Burning Man
« Reply #16 on: August 21, 2007, 11:33:05 pm »

Have a good show! let's see some pics!
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Jeff Kang
Custom Audio Inc.

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Pascal Pincosy

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Listening Test
« Reply #17 on: October 07, 2007, 04:01:55 pm »

I have a listening test planned for the Dynacord PowerH 5000 vs a number of different amps this coming Wednesday evening in San Francisco. We'll be doing ABX testing on both front-loaded and horn-loaded subs, as well as with a top cabinet. If you're in the area and you'd like to participate, please send me a PM and I'll give you the details.
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Ken Freeman

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Re: Listening Test
« Reply #18 on: October 07, 2007, 04:53:24 pm »

I wish I could join you.

Jeff Taylor and Dave, the man with no business CARDS (our local Rep from Quantum) were just in with the H series amplifiers  They do seem impressive.  I am currently looking at these, the Itech's and Yamaha's T series and the Dynacords seemed like amongst the easiest to interface.  I did not try to build multi-amp networks like I often do with my I-techs, as they only brought one of each size.  Having three and soon five solid high output DSP amplifier solutions means we have a lot of good choices to be making here. I think a little competition is good for the market at these power levels.  While Crown is way, way ahead being early to market, I expect that many more users will be going down the road of DSP amps soon as a result of a few more options. I would recommend that any of you looking for your next generation amplifier take a good look at these three as well as the stuff on the way from LAB and others.  It will be a good shopping year for amplifiers...and if you still want old school 8001's....

Ken
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Pascal Pincosy

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Re: Burning Man
« Reply #19 on: October 07, 2007, 06:31:50 pm »

After an incredibly busy September, I've finally found the time to write up a report on my final test of the PowerH amplifiers. I took the rack of Dynacord amps to one of the most inhospitable environments for electronics around: Burning Man, home of 100+ degree temps, rain, and dust storms. I did, however, provide the gear with some protection. I built a box, outfitted with air conditioners, to hold the gear in hopes of keeping it relatively dust-free. Here are some pics of the camp:

index.php/fa/11648/0/

You can see the top corner of the amplifier box behind the DJ shade structure in the second pic. It was built with 4x8 stage decks and OSB. You can see one of the AC units poking out of the side of the box.

I had ordered some speaker lifts to fly my tops, but due to a shipping mishap, they weren't delivered in time for the show. So at the last minute, I was forced to go with the pipe and base apparatus you see here. Genie Supertowers would have been a much better option, but as I'd already spent the budget on the new lifts, I couldn't afford to go that route. Aside from the hassle of building the stands, and getting the speakers in place, they worked pretty well. We did decide to not fly the last two tops due to the extra weight and inconvenience. Since the dance floor was pretty small, we didn't really need the extra top cabinets.

And yes, those are 12 Danley TH-115's you see there. I traded in my Bassmaxx Trips for 8 TH-115's, and I cross-rented another 4. I'll be posting my impressions of these subs in another thread soon.

These pics were taken on the Sunday after the burn. The camp has taken a bit of a beating from dust storms over the course of the week, and unfortunately, the partner of the camp's main organizer broke her ankle early in the week, and he spent almost all of the rest of the event with her in a hospital in Reno, so the shade structures were looking a bit ragged by the end of the week. All in all, the camp weathered the storms pretty well though.
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