Author Topic: QRV06 topologie for power amplifier  (Read 6472 times)

0 Members and 1 Guest are viewing this topic.

Offline Digora

  • Member
  • **
  • Posts: 5
  • Karma: +0/-0
QRV06 topologie for power amplifier
« on: February 21, 2008, 08:29:53 PM »
heaveno,

Do you have try the topologie of the QRV06 headphone amp for power amplifier ?

I am  very interested with this topologie but maybe with differential input like the figure 13 on this document find in your site :

http://www.utdallas.edu/~heavenums/docs/JournalPapers/SmithCFBamp.pdf



Thanks :)
« Last Edit: February 21, 2008, 08:30:47 PM by Digora »

Offline peranders

  • Administrator
  • Reached Nirvana
  • *****
  • Posts: 1230
  • Karma: +6/-0
  • Gender: Male
  • Forum owner
    • Sjöström Audio
Re: QRV06 topologie for power amplifier
« Reply #1 on: February 21, 2008, 08:35:11 PM »
Sorry, but a danish guy has made a very fine current feedback POWER amplifier with a similar design as my QRV06/08

Sonny Andersen had his web site here http://mirand.dk/ but I don't know what happend to it. Send me an email if you want the pdf of the amp.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

Offline Digora

  • Member
  • **
  • Posts: 5
  • Karma: +0/-0
Re: QRV06 topologie for power amplifier
« Reply #2 on: February 21, 2008, 09:14:21 PM »
Thanks to your answer

The web site does not responding ...

Yes I would like the schematic pdf :)

I have sennheiser HD555 headphone, can I use the QRV08 ?  how can I buy it and How is the kit ?


Offline peranders

  • Administrator
  • Reached Nirvana
  • *****
  • Posts: 1230
  • Karma: +6/-0
  • Gender: Male
  • Forum owner
    • Sjöström Audio
Re: QRV06 topologie for power amplifier
« Reply #3 on: February 21, 2008, 09:24:05 PM »
I sell only the pcb, no parts. The amp will work beautifully with any headphone.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

Offline Digora

  • Member
  • **
  • Posts: 5
  • Karma: +0/-0
Re: QRV06 topologie for power amplifier
« Reply #4 on: February 21, 2008, 09:34:26 PM »
SMD is not easy to build...

No version with BC550 560 ?   


Offline peranders

  • Administrator
  • Reached Nirvana
  • *****
  • Posts: 1230
  • Karma: +6/-0
  • Gender: Male
  • Forum owner
    • Sjöström Audio
Re: QRV06 topologie for power amplifier
« Reply #5 on: February 22, 2008, 08:30:12 AM »
I'm afraid not.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

Offline Digora

  • Member
  • **
  • Posts: 5
  • Karma: +0/-0
Re: QRV06 topologie for power amplifier
« Reply #6 on: February 22, 2008, 11:26:38 AM »
ok

is it possible to use your schematic for BC550 and ... BC139 or MJE15030 ?


Offline peranders

  • Administrator
  • Reached Nirvana
  • *****
  • Posts: 1230
  • Karma: +6/-0
  • Gender: Male
  • Forum owner
    • Sjöström Audio
Re: QRV06 topologie for power amplifier
« Reply #7 on: February 22, 2008, 02:02:35 PM »
You can use just about any transistor type. It's not very critical.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

Offline Digora

  • Member
  • **
  • Posts: 5
  • Karma: +0/-0
Re: QRV06 topologie for power amplifier
« Reply #8 on: February 24, 2008, 01:15:55 PM »
your schematic look like  super linear circuit

http://www.audiodesignguide.com/Headphone_amp/headphoneamp.html

but the mirror is not on the input

Offline peranders

  • Administrator
  • Reached Nirvana
  • *****
  • Posts: 1230
  • Karma: +6/-0
  • Gender: Male
  • Forum owner
    • Sjöström Audio
Re: QRV06 topologie for power amplifier
« Reply #9 on: March 04, 2008, 12:35:03 PM »
Sorry, but I must disagree....
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff