Hypex Ncore - Page 90 - diyAudio
Go Back   Home > Forums > Amplifiers > Class D
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

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
Closed Thread
 
Thread Tools Search this Thread
Old 18th December 2011, 08:39 PM   #891
diyAudio Member
 
Join Date: Apr 2008
many thanks.

Last edited by roscoeiii; 18th December 2011 at 08:39 PM. Reason: typo
 
Old 19th December 2011, 03:22 AM   #892
diyAudio Member
 
john dozier's Avatar
 
Join Date: Dec 2010
Location: columbia sc
Is the module suitable for use with 8ohm speakers? If so with what power output. Thanks and kindest regards Dr. John Dozier
__________________
Evil looms. Cowboy up. Kill it. Get Paid.
 
Old 19th December 2011, 09:07 AM   #893
back is offline back  Greece
diyAudio Member
 
Join Date: Nov 2005
Location: crete
Quote:
Originally Posted by john dozier View Post
Is the module suitable for use with 8ohm speakers? If so with what power output. Thanks and kindest regards Dr. John Dozier
yes it is.

200 watts.
 
Old 19th December 2011, 12:37 PM   #894
diyAudio Member
 
john dozier's Avatar
 
Join Date: Dec 2010
Location: columbia sc
Thanks. I only asked as I know some class D's are not rated for impedences above 4ohms.
__________________
Evil looms. Cowboy up. Kill it. Get Paid.
 
Old 19th December 2011, 04:42 PM   #895
diyAudio Member
 
Join Date: Apr 2008
And from my limited understanding it is usually a good sign when an amp "doubles down" in its power from 8 to 4 ohms.
 
Old 19th December 2011, 05:48 PM   #896
markusA is offline markusA  Sweden
diyAudio Member
 
markusA's Avatar
 
Join Date: Dec 2009
Location: Gothenburg
Blog Entries: 1
I feel I should know this one but...

How much voltage swing can you get from a Ncore? What are the specs needed for the psu if you want the big voltages?
How low a load impedance is ok to use with these amps?

The questions are relevant to me since I'm considering using ESL's.
 
Old 19th December 2011, 06:21 PM   #897
diyAudio Member
 
Join Date: Apr 2009
Quote:
Originally Posted by markusA View Post
I feel I should know this one but...

How much voltage swing can you get from a Ncore? What are the specs needed for the psu if you want the big voltages?
How low a load impedance is ok to use with these amps?

The questions are relevant to me since I'm considering using ESL's.
Isn't it all in the specs?
Max power supply voltage for the NC400 is +/- 72 v; that is some 48 VRMS of maximum output voltage with a higher impedance load.
Isn't 2 ohms indicated as minimum load?
ESL's have their minimum impedance at HF; that is a completely different situation from a low impedance at LF; I should not be worried for the NC400 not being able to drive an ESL.
 
Old 19th December 2011, 06:24 PM   #898
diyAudio Member
 
Join Date: Apr 2008
Just noticed that nice high input impedance value of 200 kOhm. Very nice. I had been reading recently about the Wyred4Sound implementation of the ICEblock modules and it seems that one of their core additions was a buffer stage to raise the input impedance to 60k or so.
 
Old 19th December 2011, 06:28 PM   #899
diyAudio Member
 
Join Date: Jul 2010
Default Pieter...

Typically, class D amps have not been the best choice for driving electrostatic loudspeakers (as opposed to something like planar magnetics, which rock with class D). But nCore is new, and appears to solve many of the reactive output impedance issues of some class D amps. I think it would be best to seek an answer from Bruno and/or Hypex directly to determine how well an nCore would work with a given ESL. I think a complete impedance curve for the speaker would be good to have them take a look at.
 
Old 19th December 2011, 07:14 PM   #900
diyAudio Member
 
Join Date: Apr 2009
Quote:
Originally Posted by barrows View Post
Typically, class D amps have not been the best choice for driving electrostatic loudspeakers (as opposed to something like planar magnetics, which rock with class D). But nCore is new, and appears to solve many of the reactive output impedance issues of some class D amps. I think it would be best to seek an answer from Bruno and/or Hypex directly to determine how well an nCore would work with a given ESL. I think a complete impedance curve for the speaker would be good to have them take a look at.
As for as I know (but correct me if I am wrong) class d amplifiers in general seem to drive ESL's pretty well. I understand that class d amps are good in driving low impedances where a lot of current must be delivered into the load (of course also dependent on power supply capability), but that does not disqualify them at the same time in their ability to drive a more capacitive load.
 

Closed Thread


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hypex Ncore vs. NAKSA AlliumPorrum Class D 1 26th May 2015 07:36 PM
Problem with Hypex Ncore Koifarm Class D 29 13th October 2014 07:32 AM
Any news on hypex ncore 2.0? JZatopa Class D 1 13th August 2013 11:30 AM
Hypex UcD700 vs NCore Earbound Class D 25 15th March 2013 05:10 PM
Building a Hypex Ncore... Jabbejokker Class D 0 7th March 2013 10:08 PM


New To Site? Need Help?

All times are GMT. The time now is 09:03 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright 1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki