Best amp for >1500Hz?

Khron · 13th May 2006, 09:27 PM

I'm going for a pair of active speakers. The mid-bass amp is all sorted out (PA150, 3xLM3886 in parallel, PCB ammended by Eva; thanks again

).

The question now is: what chip-amp (or even discrete solid-state) sounds best for a pair of tweeters??? (I'm gunning for a pair of Seas 27TDFC's)

neutron7 · 14th May 2006, 12:26 AM

How about "classic" lm3875 gainclone. with low cap (1000uf or even less) psu or even regulated. often the low cap supply is quoted as having "sweeter highs".

great thing about diy is you can change it if you dont like it and thats an easy amp to build.

Khron · 14th May 2006, 09:59 AM

Is the 3875 my best (and only) bet?

neutron7 · 14th May 2006, 08:26 PM

no its just a suggestion. there are many many different kinds of amps out there!
perhaps you want a tube amp driving just the tweeters and a class D for mid/bass. its entirely up to you

Bazukaz · 14th May 2006, 08:39 PM

Hi,
You can probablyuse lower power amp for a tweeter , because there is little power at high frequencies.I think that LM1875 would do just fine.

pinkmouse · 14th May 2006, 08:44 PM

The OPA548 has a slightly less laid back sound in my experience. Whatever chip you use, go for the inverted design, it has a much nicer top end.

demogorgon · 17th May 2006, 05:24 PM

I'd perhaps even go for the lm1875.

a 5 legged device at 20W, a joy to work with, and wont take much space at all. sounds as well as the other lm's i'v tried.

wxn · 19th May 2006, 07:35 AM

Sure tweeter amps don't need migh RMS power. But quite high peak power output capability wouldn't hurt either. Otherwise your amp could clip at transients.

13th May 2006, 09:27 PM	#1
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	Best amp for >1500Hz? I'm going for a pair of active speakers. The mid-bass amp is all sorted out (PA150, 3xLM3886 in parallel, PCB ammended by Eva; thanks again ). The question now is: what chip-amp (or even discrete solid-state) sounds best for a pair of tweeters??? (I'm gunning for a pair of Seas 27TDFC's)

14th May 2006, 08:44 PM	#6
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	The OPA548 has a slightly less laid back sound in my experience. Whatever chip you use, go for the inverted design, it has a much nicer top end. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

19th May 2006, 07:35 AM	#8
wxn diyAudio Member Join Date: Sep 2003 Location: Vilnius	Sure tweeter amps don't need migh RMS power. But quite high peak power output capability wouldn't hurt either. Otherwise your amp could clip at transients. __________________ Nothing is as simple as it seems

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14th May 2006, 12:26 AM	#2
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	How about "classic" lm3875 gainclone. with low cap (1000uf or even less) psu or even regulated. often the low cap supply is quoted as having "sweeter highs". great thing about diy is you can change it if you dont like it and thats an easy amp to build.

14th May 2006, 09:59 AM	#3
Khron diyAudio Member Join Date: Jul 2005 Location: Finland	Is the 3875 my best (and only) bet?

14th May 2006, 08:26 PM	#4
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	no its just a suggestion. there are many many different kinds of amps out there! perhaps you want a tube amp driving just the tweeters and a class D for mid/bass. its entirely up to you

14th May 2006, 08:39 PM	#5
Bazukaz diyAudio Member Join Date: Nov 2005 Location: Vilnius	Hi, You can probablyuse lower power amp for a tweeter , because there is little power at high frequencies.I think that LM1875 would do just fine.

17th May 2006, 05:24 PM	#7
demogorgon diyAudio Member Join Date: Jul 2004 Location: Behind you.	I'd perhaps even go for the lm1875. a 5 legged device at 20W, a joy to work with, and wont take much space at all. sounds as well as the other lm's i'v tried.

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