Mauro Penasa MyRef vs simple LM3886 circuit - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 14th May 2012, 05:26 AM   #1
diyAudio Member
 
Join Date: Jan 2011
Default Mauro Penasa MyRef vs simple LM3886 circuit

hi
i want to know difference between Mauro Penasa's MyRef design for LM3886 and the simple circuit given in LM3886 datasheet. will it be worth of spending that extra for MyRef version?
  Reply With Quote
Old 14th May 2012, 09:41 AM   #2
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
Start reading here. All the basic information comes fairly quickly.

The LM3886 is a fantastic chip on its own, but the sound from the advanced implementations are approaching the performance of multi-thousand dollar tube amps for a fraction of the cost. The MyRef Fremen Edition is one of these.

I would suggest your choice of amp design is directly related to the level of your associated equipment and the quality/size of your speakers. A dune buggy is a whole lot of fun, while a Silver Cloud or a Corvette most likely will give a better driving experience.
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."

Last edited by bcmbob; 14th May 2012 at 09:52 AM.
  Reply With Quote
Old 14th May 2012, 10:16 AM   #3
diyAudio Member
 
Join Date: Sep 2009
Location: seoul
i agree with bob. the sound from myref is eerily reminescent of a quality tube amp in tonal accuracy and detail. gainclone might have an edge on attack and transparency but it cannot even be held in same comparison for refinement against myref.
in short, with my limited experience with them,

crazy fun ss sound (underline crazy)- gainclone

ultra refined uncharacteristic sound- myref
  Reply With Quote
Old 14th May 2012, 01:09 PM   #4
diyAudio Member
 
Join Date: Jan 2011
MyRef is already sounding good to me!!
as its tonal quality is comparable with that of tube amp, then i believe this can be a good companion for fostex full range drivers. is it right?
also can someone point me to a kit or PCB if anybody is selling.
  Reply With Quote
Old 14th May 2012, 01:13 PM   #5
AndrewT is online now AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Go to that link that McBob so kindly looked out for you.
On the last page you will find Linuxguru.
He has a variety of different implementations on PCBs.
__________________
regards Andrew T.
  Reply With Quote
Old 15th May 2012, 02:36 AM   #6
squalor is offline squalor  United States
diyAudio Member
 
squalor's Avatar
 
Join Date: May 2005
Location: Redneck Riviera
soundnovice, you have Fostex full range drivers ? Which ones ? Which cabinet design ? Reason I ask is I have FE206E in Dallas II cabinets. I'm also in the Fremen Edition beta build.
Quote:
be worth of spending that extra for MyRef version?
depends on how much "that extra" your willing to spend. Do you already have a preamp ?
  Reply With Quote
Old 15th May 2012, 09:03 AM   #7
diyAudio Member
 
Join Date: Jan 2011
Quote:
Originally Posted by squalor View Post
soundnovice, you have Fostex full range drivers ? Which ones ? Which cabinet design ? Reason I ask is I have FE206E in Dallas II cabinets. I'm also in the Fremen Edition beta build.
depends on how much "that extra" your willing to spend. Do you already have a preamp ?
i have a pair of fe126en. building bk-12m folded horn as per the specs given in madisound. Linuxguru sells MyRef PCB and also the components. trying to get in touch with him for the kits availability. i am ready to spend whatever extra it is as long as its within my budget. i dont have any preamp with me. but simple op-amp based preamp as in this one High Quality Audio Preamp is what i have in mind. can u please share link or pictures of your dallas II cabinet
  Reply With Quote
Old 15th May 2012, 02:30 PM   #8
squalor is offline squalor  United States
diyAudio Member
 
squalor's Avatar
 
Join Date: May 2005
Location: Redneck Riviera
Dallas II plans needed

A back-loaded folded horn design using Fostex drivers may only need a volume pot with a chip amp, your speakers will be very efficient.
  Reply With Quote
Old 15th May 2012, 03:14 PM   #9
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
If you want you can take advantage of the Release Candidate mini GB of the Fremen Edition (my My_Ref derivate design), it will close in a week or two.

The PCBs cost will be around 40$ and BOM can be sourced entirely from Mouser (from 150$ depending on some component alternatives).

Ask Bob how much the FE sounds better than a plain My_Ref...
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch"
  Reply With Quote
Old 15th May 2012, 03:42 PM   #10
ra7 is offline ra7  United States
diyAudio Member
 
Join Date: Feb 2009
Blog Entries: 1
I don't want to be a party-pooper, but in my listening experience the MyRefC is very good, although probably not better than good Class-A designs. This includes tubes and SS.

Definitely worth the effort compared to a plain LM3886.
  Reply With Quote

Reply


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
Mauro Penasa MyRef RevC GainClone Mono Blocks apoopoo999 Swap Meet 6 29th July 2011 04:27 AM
my_ref revC group buy (Mauro Penasa LM3886 design) schro20 Group Buys 650 17th October 2010 11:42 PM
Evolution Amplifier by Mauro Penasa Panelhead Chip Amps 14 22nd July 2010 09:56 AM
WTB: Mauro Penasa Ref C marginwalker Swap Meet 0 13th October 2007 05:28 PM
MY_REF EVOLUTION by MAURO PENASA goldkenn Chip Amps 8 25th September 2007 04:50 PM


New To Site? Need Help?

All times are GMT. The time now is 05:03 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2