Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

Behringer iNuke NU3000 Measurements
Behringer iNuke NU3000 Measurements
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th June 2017, 04:41 AM   #91
wg_ski is offline wg_ski  United States
diyAudio Member
 
Join Date: Oct 2007
You could probably make a 'better' amplifier by using multiple 4227/4229 outputs with proper gate drive circuitry, with little else being absoulutely necessary. Only a few dollars more for a DIY. Engineer some real current limiting with a current transformer and then you don't have a ticking bomb.

Got a couple of old iron horse trafos that will give +/-93 that are begging to be put to use and don't have the taps to do class H.... Even loaded they should put out more than 78V - giving more RMS than the inuke puts out peak. I was expecting to see closer to 100v supplies in that thing. Really is 3000w peak and not a milliwatt more.
  Reply With Quote
Old 15th June 2017, 05:53 AM   #92
ammel68 is offline ammel68  United States
Banned
 
Join Date: Sep 2009
Location: Southeast, U.S.
Behringer iNuke NU3000 Measurements
Quote:
Originally Posted by Eva View Post
I'm the designer of class D amplifier modules for a North American company, made in USA: SpeakerPower - Home
No unbalanced inputs on the "Pro Rack Mount Models". That blows for the folks wanting to use one of those models in their home setup.

Clearly, these amps are aimed at the commercial crowd.

Best of luck to Eva and SpeakerPower in this already crowded market.
  Reply With Quote
Old 15th June 2017, 05:34 PM   #93
Eva is offline Eva  Spain
diyAudio Member
 
Eva's Avatar
 
Join Date: Oct 2003
Location: Near the sea
Send a message via MSN to Eva
Quote:
Originally Posted by dizzie View Post
While your technologies are mouth-watering, I could never justify spending the money on them in my situation - it just isn't a fit. My audiences are either desiring relatively faithful sound reproduction at medium levels for my live musician performances, or non-critical listening at high levels when I DJ weddings and parties. And who knows - I may not be DJing in another 3-5 years when problems may start to occur with my cheap Behringer amps. If so, I can buy a couple more and replace them many times over at the same cost as your products.
Quote:
Originally Posted by dizzie View Post
By the way, I think that your price structure on your rack models is very forward-looking, no-nonsense, and would be VERY appealing to commercial customers!
Incidentally, my mother had 2 children, then divorced, then had another children. Her latest partner tried to kill me yesterday with 4 bricks thrown in the face, I got hit by one. But forget about the particular story, just view it in a fully abstract way.

What is the impact over subconscious brain of society when a state-of-the-art technological product, made with rare and scarce materials, that is supposed to be a creation so some mother/father/children neurology is involved, and is not a consumable, is expected to be bought more than once by the same user for the same purpose? A consumable society? Delicate creations thrown away?

This prevents me from designing anything that would be intended to be bought more than once by same user for same purpose, as it wouldn't be coherent with or encouraging for other battles being fought in life.
__________________
I use to feel like the small child in The Emperor's New Clothes tale
  Reply With Quote
Old 16th June 2017, 03:39 AM   #94
wg_ski is offline wg_ski  United States
diyAudio Member
 
Join Date: Oct 2007
But amplifiers are like Pringles - no one can eat just one. Not so much the cost of an amplifier intended to be purchased "once", but rather the cost of a rack full of them that drives people to buy throwaways. Each drives two subs, four is barely adequate and eight is finally enough where you don't need to be running them in hard limit continuously. Damn, that's a used F250. I still don't buy $300 throwaway amps, but tend to use old iron horses that other people have thrown away in favor of something lighter. Mostly because I can maintain them indefinitely. And of course have more than one. And all of my DIY amps are made from recycled parts - never paid full price for a transformer, heat sink, case or computer grade cap and never plan to.

I understand about the bricks in the face - had to put up with that garbage as a teenager. It was over music being produced by a home brew STK439 based amp and a couple of 8" full rangers. It wasn't THAT loud.
  Reply With Quote
Old 16th June 2017, 05:53 AM   #95
ICG is offline ICG  Germany
diyAudio Member
 
ICG's Avatar
 
Join Date: Jul 2007
Location: I had a Déjà Moo - I've seen that BS before!
The iNukes aren't the top notch, no question. But they are by far the cheapest mid-power amps you can start with, especally if you need to drive low impedances. If you have to buy a cheap amp, go for it and sell it a year later to get something better.
__________________
I had a Déjà Moo - I've seen that BS before!
  Reply With Quote
Old 16th June 2017, 06:47 AM   #96
ammel68 is offline ammel68  United States
Banned
 
Join Date: Sep 2009
Location: Southeast, U.S.
Behringer iNuke NU3000 Measurements
Quote:
Originally Posted by Eva View Post
Incidentally, my mother had 2 children, then divorced, then had another children. Her latest partner tried to kill me yesterday with 4 bricks thrown in the face, I got hit by one. But forget about the particular story, just view it in a fully abstract way.
Not sure what that story had to with your amplifier designs?

Had your mom's partner "thrown bricks in my face", he would be scraping his face up off the ground after getting a taste of Mr. Smith & Wesson's good 'ole .500 Magnum!
https://www.youtube.com/watch?v=rvnpUpMeD8s
No more "mom's brick throwing partner".

Keep up the good design work!
  Reply With Quote
Old 16th June 2017, 07:17 AM   #97
Zero D is offline Zero D  United Kingdom
diyAudio Member
 
Join Date: Aug 2009
Nothing wrong with the name SpeakerPower at all, in fact i like it a Lot Much better than the Behringer name any day I wouldn't use a Behringer amp on Any speakers i value, or on Anybody elses speakers either ! Keeping your fingers crossed nothing tragic will go wrong, does NOT appeal to me

@ Eva

Good to see you here. All the best with your products
__________________
Rice Kellog still going strong Not sent from a SpyPhone with CrapApps etc
  Reply With Quote
Old 16th June 2017, 09:15 AM   #98
ICG is offline ICG  Germany
diyAudio Member
 
ICG's Avatar
 
Join Date: Jul 2007
Location: I had a Déjà Moo - I've seen that BS before!
Quote:
Originally Posted by Zero D View Post
Nothing wrong with the name SpeakerPower at all, in fact i like it a Lot Much better than the Behringer name any day I wouldn't use a Behringer amp on Any speakers i value, or on Anybody elses speakers either ! Keeping your fingers crossed nothing tragic will go wrong, does NOT appeal to me
Well, Behringer isn't my first choice either but Behringer got much better amps than the iNuke, the Europower or short EP series. Often times the Thomann amps are a better choice for low budget though.
__________________
I had a Déjà Moo - I've seen that BS before!
  Reply With Quote
Old 17th June 2017, 01:11 AM   #99
wg_ski is offline wg_ski  United States
diyAudio Member
 
Join Date: Oct 2007
Quote:
Originally Posted by Zero D View Post
Nothing wrong with the name SpeakerPower at all, in fact i like it a Lot
Makes sense as the first time I heard of them they were making plate amps for powered speakers - for the real pro audio industry, for sale to OEMs only. Not the $599 specials you see in Musicians Friend. I thought they were affiliated with Powersoft, but they may be competing products.
  Reply With Quote
Old 17th June 2017, 03:52 AM   #100
wg_ski is offline wg_ski  United States
diyAudio Member
 
Join Date: Oct 2007
Speaking of ticking bombs inside Behringer equipment - I found something interesting in the IRS4227 data sheet that I hadn't noticed before. It states that the die attach in the D2pak (RoHS version of course) is subject to wear out after 1000 thermal cycles. By wear out it means a 50% increase in Rth. Must be some sort of epoxy. It will take more than that to die, but it eventually will, just like the old aluminum TO-3. Found out about that from the 78xx regulator data sheets. The TO220 has no such warning but is "not recommended for surface mounting". Crack them open and they are definitely soldered. With a package with that small a thermal mass it's not that hard to rack up several thousand thermal cycles at subwoofer frequencies.
  Reply With Quote

Reply


Behringer iNuke NU3000 MeasurementsHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Behringer iNuke NU3000 w/o any fan...? Soldermizer Class D 159 11th February 2018 04:06 AM
Measurements: When, What, How, Why D OB G Multi-Way 1666 19th January 2014 12:23 PM
OB with vintage Seas and Behringer Inuke DSP zmyrna Full Range 2 23rd April 2012 10:36 AM
Measurements SoNic_real_one Digital Source 26 6th April 2012 01:24 AM
are these measurements okay? eitanwaks Multi-Way 3 23rd March 2010 08:32 PM


New To Site? Need Help?

All times are GMT. The time now is 04:31 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki