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

Swap Meet Sell your stuff here, who knows, some other fanatic might be interested!

FS: Neurochrome Modulus-86 revision 2.1, stereo amplifier
FS: Neurochrome Modulus-86 revision 2.1, stereo amplifier
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 March 2019, 02:58 PM   #1
mattattnet is offline mattattnet  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Minnesota
Default SOLD Neurochrome Modulus-86 revision 2.1, stereo amplifier

SOLD

Shipping from zip 55110.

For sale is my build of a Neurochrome Modulus-86 revision 2.2, stereo amplifier.

Very low distortion amp using the LM3886 chip.

Amp condition is rated 7/10 due to the DIY nature of the amp.

Update 10 SEP 2017: Modulus-86 is now in Rev. 2.2. TI brought back the DIP version of the LME49710. In Rev. 2.2 I switched back to the DIP version of the IC as some builders found the TO-99 version harder to work with. This reduced the BOM cost by a few bucks too. In addition to this change, the DC servo was updated to reflect the lessons learned from the development of the Modulus-286 while shaving a little more off the BOM cost. The Modulus-86 Rev. 2.2 provides the same stellar performance as Rev. 2.1.

The amp is using an SMPS, regulated 24 volt power supply. It will output 50wpc into 4 ohms and 30 wpc into 8 ohms. No hum, no hiss, no noise.

Gain is 20db, sort of the standard.

This is a differential amp, with only xlr inputs. 5 way speaker binding posts. IEC connector for the power cord. No power cord included in sale.

Chassis is a 2U Dissipante chassis, 300mm deep. 4mm black faceplate with red LED when power is on.

Sound is clean, crisp, and free of distortion. Sounds really amazing with my 95 db sensitive speakers.

I will ship to CONUS only, I will pay for UPS insured ground shipping at my asking price.
Attached Images
File Type: jpg IMG_9481.jpg (723.9 KB, 300 views)
File Type: jpg IMG_9482.jpg (1,019.1 KB, 303 views)
File Type: jpg IMG_9483.jpg (620.9 KB, 290 views)
File Type: jpg IMG_9484.jpg (430.7 KB, 281 views)
File Type: jpg IMG_9485.jpg (770.6 KB, 279 views)

Last edited by mattattnet; 19th March 2019 at 07:16 PM. Reason: correcting information
  Reply With Quote
Old 14th March 2019, 06:26 PM   #2
poseidonsvoice is offline poseidonsvoice  United States
diyAudio Member
 
poseidonsvoice's Avatar
 
Join Date: Jul 2004
Location: North Carolina
FS: Neurochrome Modulus-86 revision 2.1, stereo amplifier
For those looking, this is an incredibly underrated amplifier for the performance. Other than max power (and the buyer can get more power by using higher DC rails either from an SMPS or linear supply), this amp leaves almost nothing to be desired if what one wants is a pure low distortion design. It has excellent specifications, including an output impedance of only a few milliohms so it can drive nearly any speaker, and a spectral harmonic distortion profile that is extraordinarily clean of higher order harmonics.

Bump for a great build and a super low price; hope it finds a new home soon.

Best,
Anand.

Last edited by poseidonsvoice; 14th March 2019 at 06:28 PM.
  Reply With Quote
Old 14th March 2019, 07:35 PM   #3
mattattnet is offline mattattnet  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Minnesota
Thanks, Anand,

My builds always look quite amateurish comparted to yours.

Matt
  Reply With Quote
Old 18th March 2019, 08:05 PM   #4
mattattnet is offline mattattnet  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Minnesota
Bump
  Reply With Quote
Old 18th March 2019, 08:12 PM   #5
dwk123 is offline dwk123
diyAudio Member
 
Join Date: Feb 2002
pm sent
  Reply With Quote
Old 19th March 2019, 02:51 PM   #6
mattattnet is offline mattattnet  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Minnesota
SOLD
  Reply With Quote

Reply


FS: Neurochrome Modulus-86 revision 2.1, stereo amplifierHide 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
Neurochrome Modulus-286: 65W (8Ω); 125W (4Ω) @ <-120dB THD Composite Amplifier Module tomchr Vendor's Bazaar 133 28th February 2019 12:45 AM
Neurochrome Modulus-186: 40W (8Ω); 65W (4Ω) @ <-120dB THD Composite Amplifier Module tomchr Vendor's Bazaar 38 13th December 2018 04:24 AM
Complete amp - 4x Neurochrome Modulus 86 uzernaam Swap Meet 16 19th October 2018 07:21 AM
Revision of Very Best Amplifier ... 2015 obiwankenobi Solid State 66 13th August 2017 09:33 PM


New To Site? Need Help?

All times are GMT. The time now is 08:43 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki