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Ribbon Midrange in a 3way design? - Page 2

post #31 of 53
Thread Starter 
I made a research and found a OEM supplier of very high quality amps used for professional audio systems, studio monitor manufacturers, also multi channel solutions, DSP options available:

http://www.powersoft-audio.com/en/products/amp-modules/d-cell504.html

The question is whether they will sell to a private DIYer smile.gif
post #32 of 53
I'm pretty sure they do. There's cheaper options available for amps and dsp though.
post #33 of 53
Thread Starter 
From the same manufacture you say.. either way could you give me more information?
post #34 of 53
Quote:
Originally Posted by Infrasonic View Post

I made a research and found a OEM supplier of very high quality amps used for professional audio systems, studio monitor manufacturers, also multi channel solutions, DSP options available:

http://www.powersoft-audio.com/en/products/amp-modules/d-cell504.html

The question is whether they will sell to a private DIYer smile.gif

You can buy them if you are resourceful(and they are quite a bit cheaper than the Digmoda), BUT we also tested these for the studio monitor and the sound quality is much lower than the Digmoda.

Greg
post #35 of 53
Your most affordable solution is a decent multichannel HT amp and a MiniDSP or Behringer DCX.

For lower power and 2 way, check out the Hypex plate amps.

http://www.madisoundspeakerstore.com/hypex-amplifiers/hypex-as2.100-dsp-active-2-way-amplifier/

Greg
post #36 of 53
Not DIY, but here's a nice design with the Neo8 as mid.

http://philharmonicaudio.com/
post #37 of 53
Thread Starter 
I know the Hypex stuff my dual passive radiator sub (from my signature) uses one, the Hypex DS2.0 175W. The AS2.100 DSP is good stuff, also configurable per software, but what kind of filters are implemented is not sure.
Those amps from Powersoft attract me though. Do you have info on 3way or tripple amp with DSP from powersoft?
post #38 of 53
Yes, as I mentioned, we got a sample of the Powersoft three way D-cell to test with the studio monitor. We were hoping to use them in place of the Digmoda, because they are much smaller, lighter and cheaper. The sound quality however was not as good, so we are staying with the Digmoda and are altering the box dimensions to fit the Digmoda into the back panel.

Greg
post #39 of 53
Does Hypex offer any 3-channel amps with on-board DSP? How does the DSP in those Hypex amps compare to something like an iNuke1000dsp or a Minidsp, for use as an active crossover and EQ devise?
post #40 of 53
Hypex currently has no three-way products. The DSP is meant for xover and EQ duty, so yes, it functions as a MiniDSP or DCX.
Edited by gbegland - 7/14/13 at 10:39am
post #41 of 53
Quote:
Originally Posted by gbegland View Post

Hypex currently has no three-way products. The DSP is meant for xover and EQ duty, so yes, it functions as a MiniDSP or DCX.

Do you think that there would be any difference in SQ with using the Hypex versus the MiniDsp with a separate amp such as a low wattage NAD or Adcom amp?
How about the Behringer DCX? I guess another option would be something like the B Behringer iNuke1000dsp, but I would be scared to use an amp with that
much current/wattage in a 2-way or 3-way active setup as I do not know of many tweeters or mid-range drivers that can take 300 watts. Is that a legit concern?
post #42 of 53
Thread Starter 
Yeah i think it is a matter of concern, let say something with the input levels go out of control besides from melting the coil, what also can happen is the high magnetic factor of the power can pull the windings of the coil apart.
As i recall those dsp behringer ams have a setting through the software where you can limit the power output going to the speakers. Yeas i am actually pretty sure. The problem with the missing channel remains though cause the amp is 2xsomething.

I found a very very high end mid, even the people from the Troels Gravesen's site (officially recomended DIY builds from the scan speak web site) admit it's the best they have ever heard..it is a ceramic driver, here is a fully documented 3way build with it:

http://www.troelsgravesen.dk/SP44.htm
Edited by Infrasonic - 7/15/13 at 3:06pm
post #43 of 53
That Accuton is a rather small mid. I requires and even higher crossover point than the Neo8S. In that link to TG, he crosses at 900-5,000.
post #44 of 53
Has anybody mentioned Dan Neubecker's Echelons? Uses the Neo 10 in an open-backed configuration along with a waveguided dome and a 12" woofer. Very ambitious DIY project and very successful by all accounts.
post #45 of 53
Quote:
Originally Posted by gbegland View Post

That Accuton is a rather small mid. I requires and even higher crossover point than the Neo8S. In that link to TG, he crosses at 900-5,000.
The nice part about that is, due to it's broad off axis, there should be minimal, if no mushrooming off axis at the tweeter/mid crossover.
post #46 of 53
Thread Starter 
I have read a lot of reviews and DIY build threads recently and for some reason I gravitate towards the Dayton RS52 dome mid.

Quote:
Originally Posted by Jay1 View Post

Yes a mid woofer needs its own airspace. The rs52 does in fact have a perfectly flat response up to its breakup.

TB specs are almost never accurate, but most of their drivers are pretty good anyway.

The rs52 would be ideal with a similar dome tweeter because the acoustic centers would basically be the same. Using a waveguide loaded tweeter would help line up acoustic centers with a cone mid

Do you think a have a good shot using the RS52 with a ribbon tweeter such as the Dayton PT2C or the Fountek NEO CD2.0 or even the horn loaded NEO CD3.5? Or I should stick to the simular dome tweeter such as Dayton RS28F for better line up with the dome mid RS52? For better lining up the accoustical centers when using the Dayton tweeter RS28F would it be a good idea to use one of their waveguides such as H45E, also more natural sound or it isn't worth the bigger dimensions after introducing a horn quide into the system?
Edited by Infrasonic - 7/18/13 at 4:23am
post #47 of 53
I have done some reading on the Neo10, and Neo8, and they both seem to be excellent ribbon mid-range drivers. In fact, they are highly regarded for the low distortion, and fast decay time. I would love to see someone design an active or passive 3-way using one of those mids and a high quality tweeter and woofer.
post #48 of 53
Thread Starter 
I found a DIY kit from the same web site which is authorized to sell the BG Neo in Europe (actually they have an anaechoic chamber and work together with Sony) and a review from a prestige Magazine in Germany. They refer to the kit as a very open, almost unheard-revealing speakers. The audax in turn have been on he scene for 35 years and seem to be a respectable company, as loudspeakers from other companies are being there developed and so on. I am sold on the BG Neo10+Neo3. Here is the kit:

http://www.audax-speaker.de/index.php?module=shop_articles&index[shop_articles][action]=details&index[shop_articles][category]=2&index[shop_articles][data][shop_articles_id]=83



It is 1069 Euro with 2x 8-inch custom Usher woofers and X-Over. It is too expensive though. I played with the REW a little bit, I am gonna order the miniDSP UMIK-1 mike and will design the X-Over with your help myself smile.gif There isn't a rear plate on the Mid-Cab, only solid layers of damping material from Polyester. X-Over points are 300Hz and 3kHz.

I'll come back as soon I have something going on with the delivery of the Neos. Besides the autors of the review for this Kit say it reaches the performance and quality of the 20000+ Euro speakers. It depends how good the X-Over will be though. It will cost me 110Euro for the Neo 3 and 280Euro for the Neo10. From the woofer side i didnt decide yet, i think something like 6,5 Seas Excel or a Accuton driver.
Edited by Infrasonic - 7/27/13 at 3:04pm
post #49 of 53
I'd consider something different for bass drivers if you're only using 6.5's. Exodus Anarchy and Scanspeak Illuminator would be two better examples.
post #50 of 53
Quote:
Originally Posted by Face2 View Post

I'd consider something different for bass drivers if you're only using 6.5's. Exodus Anarchy and Scanspeak Illuminator would be two better examples.

I second this advice. I would not personally use the Anarchy in a two-way, but as a woofer in a small three way, they would be most excellent. I'd use two if possible, otherwise system sensitivity will be low and you'll be throwing away free dB from the Neo combo.

Greg
post #51 of 53
Quote:
Originally Posted by Martycool007 View Post

I have done some reading on the Neo10, and Neo8, and they both seem to be excellent ribbon mid-range drivers. In fact, they are highly regarded for the low distortion, and fast decay time. I would love to see someone design an active or passive 3-way using one of those mids and a high quality tweeter and woofer.

http://www.htguide.com/forum/showthread.php?40414-New-studio-monitor-project
post #52 of 53
Thread Starter 
Quote:
Originally Posted by Face2 View Post

I'd consider something different for bass drivers if you're only using 6.5's. Exodus Anarchy and Scanspeak Illuminator would be two better examples.

The 6.5 Illuminator is a 85db driver and the Neos are 93, i need to do a strong LPad to bring the Neos down or i need at least 3 woofers frown.gif . What driver would you choose in this case?
post #53 of 53
There's extension, efficiency, and compact cabinet size, pick two. biggrin.gif What size bass cabinet are you limited to?
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