|Chip Amps Amplifiers based on integrated circuits|
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|10th August 2008, 04:48 AM||#1|
Join Date: Jun 2003
Location: Eugene, Oregon
chipamp LM1875 anyone built them?
I'm in the process of slowly assembling the stereo kit from Brian Bell.
Anyone else put them together yet? Debating things like putting zobel R & C on speaker terminals instead of PCB...thoughts? Also the kit contains a 22uF bipolar cap at C2, is this AC coupling for feedback resistors? Goes to gnd and R3 (1k or 680 ohm in my case).
Wish I'd studied this stuff with as much interest 30 years ago!
|10th August 2008, 07:13 AM||#2|
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
I haven't gotten mine yet... as soon as i do, one set is going to replace the sat amps in a Keiga 2,1 plate amp.
|21st August 2008, 03:59 PM||#3|
Join Date: Dec 2005
Location: the north
Re: chipamp LM1875 anyone built them?
About LM1875 .. vs. LM3875/LM3886 and more powerful chips.
I would always go for LM1875 .. before LM3875/3886
in the case I need some moderate wattage power.
And this is most any case with speakers of normal sensitivity and for normal living rooms at normal listening levels.
Especially for our normal consumer 8 Ohm speakers
Well, it has to do with this rule
This is what a good forum Moderator lives by.
And this is also a pretty good general rule for any man.
We do not need to take our car, for doing some household shopping in the food shop on the corner.
We can take a walk or ride our bike.
LM1875 is a real hi-fi & musical chip amplifier.
Compared to many other in the same price range.
And even compred to several more expensive chips.
You can not go very wrong, if go for LM1875
using kit from BrianGT chip amps website or some other LM1875 circuit.
Lineup audio lab
|21st August 2008, 04:37 PM||#4|
Join Date: Feb 2003
Ive just built Brians 3886 for a friend and am in the process of chassis
fab. If you need any help, send me a PM or email me. Im over in the South Hills area BTW.
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