Go Back   Home > Forums > >

Class D Switching Power Amplifiers and Power D/A conversion

The migration to our new platform will be happening today at 11AM GMT/UTC, Wednesday 8th December 2021. See this time in your city. The site will be down for 24-48 hours while we perform the migration. Read more here.
The New Hypex Fusion Plate amps
The New Hypex Fusion Plate amps
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
Old 27th September 2021, 08:59 AM   #2641
YSDR is offline YSDR  Hungary
diyAudio Member
 
Join Date: Nov 2013
Not really. There are 3 jumpers, which consists from 6 solder dots, 2x2 dot for the RCA (red lines in the pic) and 1x2 dot for the XLR (yellow line).
  Reply With Quote
Old 27th September 2021, 10:52 AM   #2642
Thepinguin is offline Thepinguin
diyAudio Member
 
Join Date: Aug 2020
Ok thanks
2 dots to solder for xlr

And for rca need to solder also the 2 dots of A and the dots of B (22)?
  Reply With Quote
Old 27th September 2021, 11:08 AM   #2643
YSDR is offline YSDR  Hungary
diyAudio Member
 
Join Date: Nov 2013
Yes.
  Reply With Quote
Old 27th September 2021, 11:26 AM   #2644
Thepinguin is offline Thepinguin
diyAudio Member
 
Join Date: Aug 2020
Thanks

I think i'm gonna go that route this week end and document it here for future reference.

Does someone know the sensitivity values after soldering?
Without solder, xlr IN is at 6.15v , wich usual dacs do not reach
  Reply With Quote
Old 27th September 2021, 11:35 AM   #2645
YSDR is offline YSDR  Hungary
diyAudio Member
 
Join Date: Nov 2013
The increased sensitivity is in the manual (page 17) which is 2.18V for XLR and 0.98V for RCA.
  Reply With Quote
Old 27th September 2021, 11:47 AM   #2646
fedde is online now fedde  Netherlands
diyAudio Member
 
Join Date: Jul 2002
Location: Eindhoven, the Netherlands
It is possible to solder the jumpers without removing the PCB, using a solder iron with long and narrow tip, though it will cause some nerves...
__________________
http://www.fedde.nu, gainclone, non-oversampling DAC and open baffle audio projects...
  Reply With Quote
Old 27th September 2021, 01:07 PM   #2647
Thepinguin is offline Thepinguin
diyAudio Member
 
Join Date: Aug 2020
Lets see this week end how i feel it
I have googles so help, and my soldering equipment include a long and narrow tip, though i dont know yet if narrow enough

But but .. 2.18v sensitivity for xlr now seems too little as my dac throw 4v ...

On one side 4v is too little Vs 6.15v
On the other side 4v is too big for sensitivity 2.18

Grrr
  Reply With Quote
Old 27th September 2021, 02:05 PM   #2648
YSDR is offline YSDR  Hungary
diyAudio Member
 
Join Date: Nov 2013
Yes it's strange at first sight, but most DAC-s reaches the best S/N ratio below their maximum output (and the best ones provides that to 0dBFS). So with a 4V XLR output DAC and 2.18V input sensitivity, the FA reaches the maximum amplifier output, if the DAC/preamp is set to approx -6dB. It's optimal if you think about it, because you already have the best S/N ratio from your DAC/preamp and your Fusionamp too, along with the maximum amp output. Not that itt matters too much, because the noisefloor of the FA is already very low and probably your DAC/preamp too.
  Reply With Quote
Old 27th September 2021, 03:30 PM   #2649
Thepinguin is offline Thepinguin
diyAudio Member
 
Join Date: Aug 2020
Cool then, i'll go that road
  Reply With Quote
Old 30th September 2021, 12:10 PM   #2650
HeadShake is offline HeadShake
diyAudio Member
 
Join Date: Apr 2019
I was messing with some plate amp configs...

Has the software always asked if you had a FIR module before you set up a plate amp? I wonder if I never noticed or if something is coming out soon?

And, in other news, one of my FA123's has gone "flashy red light of death". I listened to it two times earlier in the day. When I turned it on for a 3d time, nothing. It cost $60USD to ship the thing back from the USA.
  Reply With Quote

Reply


The New Hypex Fusion Plate ampsHide this!Advertise here!
Thread Tools

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
Hypex Plate Amps madtrapper Class D 1 14th March 2014 06:21 PM
Opinions wanted on using the Hypex 2.4 plate amps? SpinMonster Multi-Way 2 3rd April 2012 09:26 AM
Hypex plate amps chatziva Class D 3 29th July 2010 04:33 PM
HYPEX plate amps Glen1 Subwoofers 0 27th January 2006 03:22 AM


New To Site? Need Help?

All times are GMT. The time now is 10:14 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki