Indeed labs class d amp - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 26th October 2012, 11:03 AM   #1
diyAudio Member
 
Join Date: Oct 2011
Default Indeed labs class d amp

Hi Folks,

I've got several small TA2020 amps, the best one in my view being the Indeed Labs TA2020.

I wasn't happy with the bipolar electrolyte caps (2.2uf) (surely the very last choice for this app) used on the imput so I swapped them out for a couple of 2.2uf metalised polyester I had in stock.

Now, the issue is that prior to this swap the amp will drive my speakers (4 inch Fostex full range in TWQT floorstanding enclosures, allegedly rated at 94db) to silly volumes with the volume knob at 10 oclock, far more than I would expect from this flea sized amp, and certainly loud enough for me.

Now after the swap 9 0clock is loud enough, my missus saying "turn that bloody thing down"

What's going on I wonder? I know diddly about electronics except perhaps enough to do minor things as above, and I can imagine only that something called "gain" might be to blame. I notice on the board that there are two little plastic box thingies with a tiny adjustment screw on each. Adjustment for what I dunno, but are these the business? It seems to me that whatever adjustments are available on the board, this amp is running away with itself at small volume incremental changes. Perhaps I should be happy that it does so, but alas it leaves me feelling uncomfortable that something is not right.

I'm using a just-purchased Marantz CD6004 to replace my old Adcom cd player in case anyone might ask. No flashy interconnects just a modest system.

Incidentally the sound produced by this setup is otherwise very satisfying, just the issue with the available volume being the thing.

Any ideas anyone?

Cheers, Martin
  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
A and T labs K6 SMPS for Class D amp use ghemink Class D 116 24th November 2012 02:38 AM
Wellbourn Labs PSX power-supply and two class-d amp boards. tweakk Swap Meet 2 21st September 2010 08:26 PM
Tent Labs reclocking for Shigaraki (47 Labs.) Transport. Manolo47 Digital Source 3 14th February 2010 03:18 PM
JM Labs & Focal - Centre channel / Difference between Midrange & midbass speakers mark.carline Multi-Way 5 18th May 2004 06:03 PM
SDS Labs Headphone amp. Anyone built it? can it be converted to a power amp? JCoffey Headphone Systems 1 30th May 2003 12:11 PM


New To Site? Need Help?

All times are GMT. The time now is 05:22 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