Which commercial products use LM/TDA/OPA chip amps ?

percy · 13th January 2005, 03:41 AM

wondering who (i.e manufacturer) uses all these LM, TDA, OPA chips that Nat.Semi, TI etc make ?
For example, what brand/product has the LM1875,3875,3886,4780.. or other popular TDA and OPA chips ?

r0cket- · 13th January 2005, 05:00 AM

There was a thread about this a while back, if I recall correctly.

Anyway, I think the list is probably too long to print out here. You find chipamps pretty much everywhere. My Paradigm sub uses one, my Park guitar amp does too, I'm pretty sure most HT receivers under $700 or so use them (I know my Pioneer does, anyway), ditto most active studio monitors.

shusha · 13th January 2005, 07:57 AM

Quote:

Originally posted by percy
wondering who (i.e manufacturer) uses all these LM, TDA, OPA chips that Nat.Semi, TI etc make ?
For example, what brand/product has the LM1875,3875,3886,4780.. or other popular TDA and OPA chips ?

Quadro uses LM chips in their HT systems.

Tomislav.

arcom · 13th January 2005, 10:44 AM

I think a lot of car audio headunits uses TDA chips (Kenwood for sure (at least some older models))

matjans · 13th January 2005, 10:53 AM

here's another thread dealing with that subject.

/matti

thomas997 · 13th January 2005, 09:50 PM

Quote:

Originally posted by r0cket-
There was a thread about this a while back, if I recall correctly.

Anyway, I think the list is probably too long to print out here. You find chipamps pretty much everywhere. My Paradigm sub uses one, my Park guitar amp does too, I'm pretty sure most HT receivers under $700 or so use them (I know my Pioneer does, anyway), ditto most active studio monitors.

The two receivers I have use transistors (pioneer and an onkyo). But they are a little old... it definately makes sense to use them in a receiver though.

Chip amps are probably in most cheap boombox type systems. There was one in a cheap computer speaker set I had. Two in my velodyne sub..

But OPA or LM specifically I havent seen them much.. TDA more often.

OPA is too pricey :P

aHobbit · 14th January 2005, 04:05 AM

Quote:

Originally posted by r0cket-
There was a thread about this a while back, if I recall correctly.

Anyway, I think the list is probably too long to print out here. You find chipamps pretty much everywhere. My Paradigm sub uses one, my Park guitar amp does too, I'm pretty sure most HT receivers under $700 or so use them (I know my Pioneer does, anyway), ditto most active studio monitors.

Can you share what model your Pioneer HT is?

13th January 2005, 03:41 AM	#1
percy diyAudio Member Join Date: Apr 2004 Location: MN	Which commercial products use LM/TDA/OPA chip amps ? wondering who (i.e manufacturer) uses all these LM, TDA, OPA chips that Nat.Semi, TI etc make ? For example, what brand/product has the LM1875,3875,3886,4780.. or other popular TDA and OPA chips ?

13th January 2005, 10:53 AM	#5
matjans diyAudio Member Join Date: Aug 2003 Location: Utrecht, NL	here's another thread dealing with that subject. /matti __________________ Si fractum non sit, noli id reficere!

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13th January 2005, 05:00 AM	#2
r0cket- diyAudio Member Join Date: Aug 2003 Location: Portland, OR	There was a thread about this a while back, if I recall correctly. Anyway, I think the list is probably too long to print out here. You find chipamps pretty much everywhere. My Paradigm sub uses one, my Park guitar amp does too, I'm pretty sure most HT receivers under $700 or so use them (I know my Pioneer does, anyway), ditto most active studio monitors.

13th January 2005, 10:44 AM	#4
arcom diyAudio Member Join Date: Dec 2004 Location: Croatia, Rijeka	I think a lot of car audio headunits uses TDA chips (Kenwood for sure (at least some older models))

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