Acurus amplifiers

ekaerin · 4th August 2004, 06:49 AM

Hi all,

I want to built something simple but nice sounding. What comes to
mind is the power amp section of the Acurus DIA 100, DIA 150.
I believe I have a schematic somewhere and if remember it correctly
it was not too complicated.

With a few mods and the usage of the transistors I have it can be done.

So, my question is: Did anyone audition theese units.
I did but that was long ago so I don't remeber....

/ Thanks / Mattias

UrSv · 4th August 2004, 08:16 AM

I had the A250 which at that time struck as a fairly solid and well sounding amplifier with lots of oompf.

ekaerin · 4th August 2004, 08:34 AM

Tackar UrSv,

Did you remember any anomalies on vocals at the high end of the
frquency spectrum (Female voices, one of my passions in life).

The reason I'm asking is because many amps I've heard adds some
distortion like timbre from moderate output and up on vocalists etc.

Yes, my tweeters are perfectly OK.

/ Mattias

UrSv · 4th August 2004, 08:42 AM

Not really. I have a vague memory of it sounding a little bit on the dull side that is never really coming to life. Otherwise quite nice.

ekaerin · 4th August 2004, 11:34 AM

OK,
As long as it does not produce too much artifacts at the high end it
will be fine.
The project wont be targeted towards foolproof, ultra-fi. Just a descent
reliable amp I'm gonna use for music and some testing.

btw It is not likely it will have the exact signature af the original since
I'm gonna use my own stock of parts.

/ Mattias

sparkle · 15th June 2007, 09:58 AM

what happened with the schematic??
regards

sparkle · 6th July 2007, 08:46 AM

i have found out that Acurus DIA100 was using 2sa1302 and 2sc3281 - 2 pairs of output transistors and that 2sa1837 and 2sc4793 were driver transistors......
unfortunately no schematic and no service manual from any of the products from Acurus -

4th August 2004, 06:49 AM	#1
ekaerin diyAudio Member Join Date: Jun 2004 Location: Stockholm	Acurus amplifiers Hi all, I want to built something simple but nice sounding. What comes to mind is the power amp section of the Acurus DIA 100, DIA 150. I believe I have a schematic somewhere and if remember it correctly it was not too complicated. With a few mods and the usage of the transistors I have it can be done. So, my question is: Did anyone audition theese units. I did but that was long ago so I don't remeber.... / Thanks / Mattias

4th August 2004, 08:16 AM	#2
UrSv diyAudio Member Join Date: Jan 2002 Location: Sweden	I had the A250 which at that time struck as a fairly solid and well sounding amplifier with lots of oompf. __________________ UrSv Those who say it can't be done should not stop those who are doing it.

4th August 2004, 08:42 AM	#4
UrSv diyAudio Member Join Date: Jan 2002 Location: Sweden	Not really. I have a vague memory of it sounding a little bit on the dull side that is never really coming to life. Otherwise quite nice. __________________ UrSv Those who say it can't be done should not stop those who are doing it.

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
Acurus A250 FS	95Honda	Swap Meet	2	9th July 2009 05:59 PM
Acurus DIA-100 mkII	lanchile	Swap Meet	1	28th April 2009 04:19 AM
Where can I get the schematics for an Acurus DIA100 amp?	FSHZ:42	Everything Else	4	29th November 2008 10:19 PM
Acurus home page	sunrise	Everything Else	0	5th July 2007 10:00 AM
Acurus RL11	wwood	Solid State	0	21st September 2006 05:16 PM


	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

4th August 2004, 08:34 AM	#3
ekaerin diyAudio Member Join Date: Jun 2004 Location: Stockholm	Tackar UrSv, Did you remember any anomalies on vocals at the high end of the frquency spectrum (Female voices, one of my passions in life). The reason I'm asking is because many amps I've heard adds some distortion like timbre from moderate output and up on vocalists etc. Yes, my tweeters are perfectly OK. / Mattias

4th August 2004, 11:34 AM	#5
ekaerin diyAudio Member Join Date: Jun 2004 Location: Stockholm	OK, As long as it does not produce too much artifacts at the high end it will be fine. The project wont be targeted towards foolproof, ultra-fi. Just a descent reliable amp I'm gonna use for music and some testing. btw It is not likely it will have the exact signature af the original since I'm gonna use my own stock of parts. / Mattias

15th June 2007, 09:58 AM	#6
sparkle diyAudio Member Join Date: Oct 2003 Location: middle of nowhere...	what happened with the schematic?? regards

6th July 2007, 08:46 AM	#7
sparkle diyAudio Member Join Date: Oct 2003 Location: middle of nowhere...	i have found out that Acurus DIA100 was using 2sa1302 and 2sc3281 - 2 pairs of output transistors and that 2sa1837 and 2sc4793 were driver transistors...... unfortunately no schematic and no service manual from any of the products from Acurus -

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

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