It's ALIVE!!! 3886 Amp

salesmonster · 4th November 2007, 10:34 PM

My first chipamp is going!

The poweramp and power supply modules are kits from EZAmps.com. I can't praise their kits more highly. There is a premium compared to the prices of other kits, but all of the electronic parts are included, even the heat sinks. IMO, this was key for me to complete my first effort.

I've had it going in a limited fashion for a few weeks or so, but I chased down the final 2 gremlins (hopefully).

1. The turn on thump kept popping fuses like crazy. I solved that with the Loudspeaker Protect Circuit from diyclub.biz. This thread was very helpful in connecting the board.

2. It was humming...a lot! The issue was my source (currently the only source I have). It is a laptop. It didn't occur to me that the AC power supply could introduce ground loop issues. Once I figured that out, it sings like a bird when it is running on battery.

salesmonster · 4th November 2007, 10:35 PM

Here is another glamour shot.

gmilitano · 5th November 2007, 12:41 AM

Looks nice and clean.

You can try a ground loop isolator.

How do you like the sound?

salesmonster · 5th November 2007, 01:28 AM

So far, I'm very pleased with the sound. Currently it is getting it's source from a laptop sound card (not the best, I know), and it's feeding a pair of Paradigm Atoms.

Dougie085 · 5th November 2007, 01:59 AM

Might want to consider building a USB dac to feed it. What I'm seriously thinking of doing as A LOT of my music is ripped to my PC. Just easier to manage in digital form. Of course I rip it with Lossless FLAC.

salesmonster · 5th November 2007, 02:03 AM

That is the direction I'm heading in. I've been considering both the USB DACs as well as the Squeezebox.

I agree that the future is a server based home entertainment system.

Also, sadly, I'm starting at zero media after a fire caused us to loose countless CDs and LPs (as well as ALL my hardware). So, I might as well rip and backup like CRAZY!

Dougie085 · 5th November 2007, 02:12 AM

Yeah currently I'm thinking about Peter Daniels, TwistedPear, or the DDDAC. Not sure which yet. The DDDAC is the most expensive but a lot of people seem to like it a lot.

si_jopie0382 · 5th November 2007, 05:25 AM

Hi,

We are in a same way..... I'm planning about music server too.

I was planning to build ecdesign extreme nos dac and already have 8 pcs TDA1541.. this is not a simple task but worthy.

salesmonster and dougie085... congrats! for your first amps.

Regards
Jopie

5th November 2007, 12:41 AM	#3
gmilitano diyAudio Member Join Date: Apr 2004 Location: Winnipeg, Manitoba	Looks nice and clean. You can try a ground loop isolator. How do you like the sound? __________________ DIY Audio Projects [ 10" DIY Subwoofer \| FE127E Sealed Bipole \| [ LM3886 Chip Amp / Gainclone \| K-12M Tube Amp Kit ]

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
JBl GTS600, amplifier wanted! Dead or Alive, Alive if it can be helped:)	Paradise_Ice	Swap Meet	10	5th August 2010 09:47 PM
It's Alive !!	CharlieM	Planars & Exotics	12	14th February 2009 02:21 PM
Its Alive ! ! !	Madmike2	Multi-Way	7	4th July 2005 09:20 PM
Impressions of Snubbered BrianGT 3886 vs Reg 3886	moving_electron	Chip Amps	1	23rd March 2005 06:51 AM
My first Nos dac is alive!	setmenu	Digital Source	23	23rd April 2004 01:59 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? 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

5th November 2007, 01:28 AM	#4
salesmonster diyAudio Member Join Date: Aug 2007	So far, I'm very pleased with the sound. Currently it is getting it's source from a laptop sound card (not the best, I know), and it's feeding a pair of Paradigm Atoms.

5th November 2007, 01:59 AM	#5
Dougie085 diyAudio Member Join Date: Nov 2005 Location: Ohio	Might want to consider building a USB dac to feed it. What I'm seriously thinking of doing as A LOT of my music is ripped to my PC. Just easier to manage in digital form. Of course I rip it with Lossless FLAC.

5th November 2007, 02:03 AM	#6
salesmonster diyAudio Member Join Date: Aug 2007	That is the direction I'm heading in. I've been considering both the USB DACs as well as the Squeezebox. I agree that the future is a server based home entertainment system. Also, sadly, I'm starting at zero media after a fire caused us to loose countless CDs and LPs (as well as ALL my hardware). So, I might as well rip and backup like CRAZY!

5th November 2007, 02:12 AM	#7
Dougie085 diyAudio Member Join Date: Nov 2005 Location: Ohio	Yeah currently I'm thinking about Peter Daniels, TwistedPear, or the DDDAC. Not sure which yet. The DDDAC is the most expensive but a lot of people seem to like it a lot.

5th November 2007, 05:25 AM	#8
si_jopie0382 diyAudio Member Join Date: Jun 2007	Hi, We are in a same way..... I'm planning about music server too. I was planning to build ecdesign extreme nos dac and already have 8 pcs TDA1541.. this is not a simple task but worthy. salesmonster and dougie085... congrats! for your first amps. Regards Jopie

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)