LM1875 2.1 kit?

KyleinCowichan · 11:53 PM

Hello,

I see there's some very cheap 2.1 channel amplifiers on Ebay based on the LM1875. I searched the forum and I don't see anyone commenting on them. Has anyone here tried one? The appear to have the rectifier circuit on-board.

For example: LINK

Kyle

AndrewT · 26th January 2013, 10:02 AM

I would not choose to buy a complete kit of chips & passives from the Far East.
I have bought PCBs from there but I find the quality very variable.
Copper delamination is the biggest problem, second worst is temperature tolerance of the mask.

hansibull · 26th January 2013, 10:08 AM

I just ordered the "bigger brorther" on ebay, a 2.1 amplifier with 2x68W for tweeters and midranges, and 160W for the sub. I'm looking forward to test it out!

KyleinCowichan · 26th January 2013, 10:59 PM

Quote:

Originally Posted by AndrewT

I would not choose to buy a complete kit of chips & passives from the Far East.
I have bought PCBs from there but I find the quality very variable.
Copper delamination is the biggest problem, second worst is temperature tolerance of the mask.

Hi Andrew,

Point taken. For the low prices I am willing to experiment.

Kyle

KyleinCowichan · 26th January 2013, 11:01 PM

Quote:

Originally Posted by hansibull

I just ordered the "bigger brorther" on ebay, a 2.1 amplifier with 2x68W for tweeters and midranges, and 160W for the sub. I'm looking forward to test it out!

Please post your impressions!

I messaged one of the Ebay seller for the item in my first post and they said they'd include instructions for changing the crossover frequency of the sub with the purchase.

Kyle

piazzafatb · 28th January 2013, 02:10 PM

Subscribed

25th January 2013, 10:44 PM	#1
KyleinCowichan diyAudio Member Join Date: Dec 2010 Location: Cowichan Bay, BC	LM1875 2.1 kit? Hello, I see there's some very cheap 2.1 channel amplifiers on Ebay based on the LM1875. I searched the forum and I don't see anyone commenting on them. Has anyone here tried one? The appear to have the rectifier circuit on-board. For example: LINK Kyle Last edited by KyleinCowichan; 25th January 2013 at 11:53 PM.

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
Purchasing LM1875 Kit	Karl71	Chipamp	3	1st March 2013 03:51 AM
FS: Gainclone LM1875 stereo kit (UK)	jazko	Swap Meet	16	3rd February 2013 01:44 PM
New LM1875 pcb and kit pre-order special	BrianGT	Chipamp	43	17th August 2012 01:33 PM
CDA-254 Kit Class D Audio Amp Kit ~ Located in Australia	Mitch311	Swap Meet	8	9th May 2011 11:52 PM
FS: BrianGT gainclone kit. LM3875 Dual Mono Kit	mattjk	Swap Meet	3	16th November 2004 12:24 AM

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

26th January 2013, 10:02 AM	#2
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	I would not choose to buy a complete kit of chips & passives from the Far East. I have bought PCBs from there but I find the quality very variable. Copper delamination is the biggest problem, second worst is temperature tolerance of the mask.

26th January 2013, 10:08 AM	#3
hansibull diyAudio Member Join Date: Jan 2013 Location: Oslo	I just ordered the "bigger brorther" on ebay, a 2.1 amplifier with 2x68W for tweeters and midranges, and 160W for the sub. I'm looking forward to test it out!

28th January 2013, 02:10 PM	#6
piazzafatb diyAudio Member Join Date: Aug 2012	Subscribed