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

Solid State Talk all about solid state amplification.

ultra performance amp
ultra performance amp
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 24th February 2013, 05:25 PM   #1
400kg is offline 400kg  Turkey
Banned
 
Join Date: Jan 2012
Location: kangal/sivas
Send a message via MSN to 400kg
Default ultra performance amp

new design , no pcb
Attached Images
File Type: jpg sim.jpg (380.1 KB, 2257 views)
File Type: jpg Foto?raf0416.jpg (562.3 KB, 2163 views)
Attached Files
File Type: pdf saphirre.pdf (139.9 KB, 584 views)
  Reply With Quote
Old 24th February 2013, 05:28 PM   #2
KatieandDad is offline KatieandDad  United Kingdom
diyAudio Member
 
KatieandDad's Avatar
 
Join Date: Nov 2011
Location: UK
But what does it sound like ?
  Reply With Quote
Old 24th February 2013, 05:29 PM   #3
400kg is offline 400kg  Turkey
Banned
 
Join Date: Jan 2012
Location: kangal/sivas
Send a message via MSN to 400kg
Quote:
Originally Posted by KatieandDad View Post
But what does it sound like ?
very detailed and soft
clear highs and deep bass.
  Reply With Quote
Old 24th February 2013, 08:48 PM   #4
400kg is offline 400kg  Turkey
Banned
 
Join Date: Jan 2012
Location: kangal/sivas
Send a message via MSN to 400kg
Default diagram corrected

diagram corrected
Attached Files
File Type: pdf sapphire.pdf (142.2 KB, 518 views)
  Reply With Quote
Old 25th March 2013, 03:51 PM   #5
400kg is offline 400kg  Turkey
Banned
 
Join Date: Jan 2012
Location: kangal/sivas
Send a message via MSN to 400kg
Default final update

final update
Attached Files
File Type: pdf sapphire final.pdf (148.8 KB, 675 views)
  Reply With Quote
Old 25th March 2013, 04:12 PM   #6
sajti is offline sajti  Hungary
diyAudio Member
 
Join Date: Apr 2003
Location: Százhalombatta, Hungary
Hi,

the input & tha VAS looks like the Pioneer A9 power stage. So it can be quite OK.
Some improvement possible in the VAS. See the attached picture.

Sajti
Attached Images
File Type: png vas.png (23.6 KB, 1631 views)
  Reply With Quote
Old 25th March 2013, 06:23 PM   #7
400kg is offline 400kg  Turkey
Banned
 
Join Date: Jan 2012
Location: kangal/sivas
Send a message via MSN to 400kg
Hi Sajti
I took the Marantz sample
  Reply With Quote
Old 25th March 2013, 10:05 PM   #8
sajti is offline sajti  Hungary
diyAudio Member
 
Join Date: Apr 2003
Location: Százhalombatta, Hungary
Quote:
Originally Posted by 400kg View Post
Hi Sajti
I took the Marantz sample
OK. My experience, that it sound even better if You connect the LEd to the emitter of Q621. In this case the impulse response is much better too.

Sajti
  Reply With Quote
Old 27th March 2013, 09:33 PM   #9
alex mm is offline alex mm  Romania
diyAudio Member
 
alex mm's Avatar
 
Join Date: Mar 2006
Location: Baia Mare ,
Default PCB rev 1.0

...... Ok,right now ,you have PCB , and Q.C. need to check this layout , this is my contribution ......
Regards Alex.
Attached Images
File Type: jpg SAPPHIRE AMPLIFIER.jpg (651.3 KB, 1435 views)
Attached Files
File Type: pdf SAPPHIRE AMPLIFIER.pdf (211.1 KB, 293 views)

Last edited by alex mm; 27th March 2013 at 09:55 PM.
  Reply With Quote
Old 27th March 2013, 11:40 PM   #10
sbrads is offline sbrads  United Kingdom
diyAudio Member
 
Join Date: Jun 2005
Location: Kent, UK
Isn't the DC gain a bit high? And no input cap. I melted a speaker cone once with something like this.
  Reply With Quote

Reply


ultra performance ampHide 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
"The Wire" Ultra-High Performance Headphone Amplifier - PCB's opc Headphone Systems 2609 12th November 2017 07:49 PM
Group Buy: QRV09 Ultra High Performance Headphone Amplifier peranders Group Buys 75 24th March 2013 10:54 AM
Ultra high performance headphone amplifier QRV09 peranders Solid State 121 25th June 2011 09:10 AM
Ultra-High-Performance Headphone Amp TPA6120 as FrontEnd for Quad-303 Super-ß Triplet tiefbassuebertr Solid State 3 24th April 2011 06:35 PM
Ultra-High performance OpAmp-based MOSFET Power Amp tlf9999 Solid State 20 7th September 2005 10:41 PM


New To Site? Need Help?

All times are GMT. The time now is 12:26 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki