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

Chip Amps Amplifiers based on integrated circuits

My_Ref Fremen Edition RC - Build thread
My_Ref Fremen Edition RC - Build thread
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 10th December 2012, 08:49 PM   #841
ClaveFremen is offline ClaveFremen  Italy
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
My_Ref Fremen Edition RC - Build thread
Quote:
Originally Posted by atupi View Post
Finally i have some good speakers (XTZ 99.26) now and i can say the alternate config of RC (390R-220uf) sounds much better, better imaging and details. Maybe can be fatigueing on some "bright" speakers but not on my ribbon tweeters.
Thanks for reporting

I've read that such speakers are a bit difficult to drive, the FE drives them well?
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch" - For My_Ref FE 12th GB extra boards PM me.
  Reply With Quote
Old 10th December 2012, 08:55 PM   #842
atupi is offline atupi  Romania
diyAudio Member
 
Join Date: Oct 2010
Location: Bucharest
Until a certain point when FE starts to produce some cracking sound in the tweeters, the same behaviour experienced with Spedors SA-1 even harder to drive.
I already shared this experiences that i had with FE and i dont know if it's the Spike protection or not.
Maybe i will find some time to resolder the old MyREFC to make a comparision.

Anyway for regular and even a bit loud listening levels in my apartment MyRef is enough powerful.

I have already broke some audiophile hearts here in Bucharest with MyRef FE and in a direct comparition on some Xavian 250 owner of an Anthem 225 said that he likes a lot dinamics and refinement of MyREF over his Anthem.

Last edited by atupi; 10th December 2012 at 09:05 PM.
  Reply With Quote
Old 10th December 2012, 09:04 PM   #843
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
atupi, what did you settle on - a bare pot or something with gain?
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."
  Reply With Quote
Old 10th December 2012, 09:10 PM   #844
atupi is offline atupi  Romania
diyAudio Member
 
Join Date: Oct 2010
Location: Bucharest
No gain, only PGA2310>DCB1>MyREF

See also here my preamp: http://www.diyaudio.com/forums/analo...ctions-76.html post #757
  Reply With Quote
Old 11th December 2012, 08:22 AM   #845
AndrewT is offline AndrewT  Scotland
R.I.P.
 
Join Date: Jul 2004
Location: Scottish Borders
Quote:
Originally Posted by atupi View Post
................... i can say the alternate config of RC (390R-220uf) sounds much better, better imaging and details..................
I've gone back to post801. No post found.
Can you link to where you bring up discussion of the RC?
__________________
regards Andrew T.
  Reply With Quote
Old 11th December 2012, 08:51 AM   #846
atupi is offline atupi  Romania
diyAudio Member
 
Join Date: Oct 2010
Location: Bucharest
i don't understand your question Andrew.
The discussion about alternate RC config appared since latest pcb layout where you can install 390R and 220uf in old way and alternate to make comparitions.

On my previous low quality speakers it was hard to hear the difference.
  Reply With Quote
Old 11th December 2012, 09:12 AM   #847
AndrewT is offline AndrewT  Scotland
R.I.P.
 
Join Date: Jul 2004
Location: Scottish Borders
Which post or posts was this discussed?
You have not posted since post801.
__________________
regards Andrew T.
  Reply With Quote
Old 11th December 2012, 09:55 AM   #848
ClaveFremen is offline ClaveFremen  Italy
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
My_Ref Fremen Edition RC - Build thread
Hi Andrew,

see this post from the beta thread.
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch" - For My_Ref FE 12th GB extra boards PM me.
  Reply With Quote
Old 11th December 2012, 10:20 AM   #849
AndrewT is offline AndrewT  Scotland
R.I.P.
 
Join Date: Jul 2004
Location: Scottish Borders
post757 discussing keeping the resistors on the +IN Pin and -IN Pin as close to the PINs as possible.
And the following posts?
__________________
regards Andrew T.
  Reply With Quote
Old 11th December 2012, 10:34 AM   #850
ClaveFremen is offline ClaveFremen  Italy
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
My_Ref Fremen Edition RC - Build thread
this part of post 757:

Quote:
Originally Posted by KSTR View Post
1) C9 is quite good an electrostatic antenna ==> exchange positions of R10 and C9 and minimize trace length on LM318 -IN (Pin3).
Basically you mount R10 in C9 position and C9 in R10 positions so to have C9 bounded to 0V ground.
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch" - For My_Ref FE 12th GB extra boards PM me.
  Reply With Quote

Reply


My_Ref Fremen Edition RC - Build threadHide 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
My_Ref Fremen Edition - Beta build/Fine tuning ClaveFremen Chip Amps 1526 8th October 2017 03:03 PM
Hx-Home Edition and Hx Mini Edition will be released December, 24th destroyer X Solid State 57 1st June 2017 05:05 PM
My_Ref Fremen Edition - need help on PCB evaluation ClaveFremen Chip Amps 450 23rd October 2013 03:38 PM
Last My_Ref Fremen Edition RC boards for sale ClaveFremen Swap Meet 3 4th December 2012 01:04 PM
Canton ERGO RC-1 (frequency room compensation) for RC-L - Schematic wanted tiefbassuebertr Multi-Way 2 20th September 2010 11:20 AM


New To Site? Need Help?

All times are GMT. The time now is 09:54 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki