LME49810 300 W amp kit from TaoBao (Test) - diyAudio
Go Back   Home > Forums > Blogs > panson_hk
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Rate this Entry

LME49810 300 W amp kit from TaoBao (Test)

Posted 5th September 2011 at 10:17 PM by panson_hk

The board is ready for test. The bias level is adjusted via monitoring the THD level as well as the distortion residual.

THD vs power for 20 Hz, 1 k and 20 k for 8 Ohm are shown in the figure. It is so high compared to all my 498xx amps. For 1 k, we should have THD lower than 0.0008 %.

Let test the THD vs power without load. Without load connected, output stage contributes very little distortion. This can be used to check whether the 49810 functions as spec or not.
Attached Thumbnails
Click image for larger version

Name:	THD vs power 1k 20k 20Hz 8Ohm.jpg
Views:	1345
Size:	175.3 KB
ID:	482  
Posted in Uncategorized
Views 2199 Comments 0
Total Comments 0


Hide this!Advertise here!

New To Site? Need Help?

All times are GMT. The time now is 02:13 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2