|Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.|
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
||Thread Tools||Search this Thread|
|8th October 2012, 09:09 AM||#1|
Join Date: May 2011
preamp and active filter for class AB amp
Hello, i know that there is similar topics, but every way is unique. So i want you guys to help me a little bit.
I am trying to build my own class ab amp with lm3886. I know that lm3886 input is about 0.7V, and my preamp input range is 0.2V to 4V. It has flat mode and 4th order LPF.
So first time i routed pcb for unknown reason one of 3 preamps is broken. Now i am starting again, so i want you to help to fix problems.
First of all: smd are better for audio or it's ok with typical resistor?
When i finish routing could you help my to fix that it would be good for sound ?
thank you for understanding and help.
sorry for my bad English
Circuit which i use for amp is here: CIRCUIT.lt : Elektronikos projektai
Circuit which i use for preamp is here: Zippyshare.com
How's the first look?
Last edited by torress1990; 8th October 2012 at 12:30 PM.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Class A or class AB preamp||Havenwood||Solid State||3||10th October 2010 05:26 PM|
|Active filter to Class-D amp.||Cyberzim||Class D||2||10th October 2009 07:06 PM|
|Pi filter for Class AB amplifier, feedback please||pjpoes||Solid State||4||21st March 2007 10:27 AM|
|Quality of filter caps in class A or AB designs.||beppe61||Parts||7||9th February 2006 08:19 PM|
|RC supply filter in Class AB amp||tiroth||Solid State||2||19th April 2002 08:44 PM|
|New To Site?||Need Help?|