A little help for a good amp

lp62 · 2nd October 2010, 03:51 PM

hallo guys,

I'm trying to build a simple but very good amplifier with a refined sound, not class A, about 15-20 Watt, for example like NVA AP10. I'm looking for the schematics in web, but there aren't or I'm not able to find them.

Can you help me?

Thanks very much.

godfrey · 3rd October 2010, 08:12 AM

Hi
I'm not sure what your level of knowledge/experience is but....

I'd recommend building one of the designs published here on the forum. That way you have the support and help of the designer and other builders and users.

The simplest option would be a chipamp. If you're feeling more adventurous and want to try a discrete design, perhaps one of Carlos(Destroyer X)'s designs would be suitable? e.g. The Dx Blame ST. Details of other DX amps can be found on Greg's website here (and are discussed in various threads on the forum).

Other amps worth considering are Mooly's Mosfet amp and Greg's Baby Aksa.

All of the above are higher power than the AP10 though - typically about 50W per channel (maybe more for the Mooly amp). I don't recall seeing any lower power amps that aren't class A and/or valve.

Regards - Godfrey

lp62 · 3rd October 2010, 09:57 AM

Thanks Godfrey,

two years ago I had built with my friend some tubes amps (211-845 and others), I rejected them, they are too hot expecially in summer and they require a lot of time before to go in ideal conditions , so I turned to build a Shigaclone.
It sounds good, but not so smooth and refined as the tubes amps.

lp62 · 3rd October 2010, 02:03 PM

Excuse me I said Shigaclone because I did also the transport CD, I would said better Gainclone.

Best Regards

n2god58 · 3rd October 2010, 03:54 PM

any one looking for special effects generator or a dukane 35 watt amplifier or a toa m900 series amp let me know all in good working condition

wahab · 3rd October 2010, 04:35 PM

A pair of 2SJ162/2SK1058 biaised at 120/150mA
driven by a symetrical differential front end, since this topology
suit better to powermos, a +-25V supply ,and you ll have a good
sounding 20W amplifier...

2nd October 2010, 03:51 PM	#1
lp62 diyAudio Member Join Date: Feb 2010	A little help for a good amp hallo guys, I'm trying to build a simple but very good amplifier with a refined sound, not class A, about 15-20 Watt, for example like NVA AP10. I'm looking for the schematics in web, but there aren't or I'm not able to find them. Can you help me? Thanks very much.

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3rd October 2010, 08:12 AM	#2
godfrey diyAudio Member Join Date: Nov 2009 Location: Cape Town	Hi I'm not sure what your level of knowledge/experience is but.... I'd recommend building one of the designs published here on the forum. That way you have the support and help of the designer and other builders and users. The simplest option would be a chipamp. If you're feeling more adventurous and want to try a discrete design, perhaps one of Carlos(Destroyer X)'s designs would be suitable? e.g. The Dx Blame ST. Details of other DX amps can be found on Greg's website here (and are discussed in various threads on the forum). Other amps worth considering are Mooly's Mosfet amp and Greg's Baby Aksa. All of the above are higher power than the AP10 though - typically about 50W per channel (maybe more for the Mooly amp). I don't recall seeing any lower power amps that aren't class A and/or valve. Regards - Godfrey

3rd October 2010, 09:57 AM	#3
lp62 diyAudio Member Join Date: Feb 2010	Thanks Godfrey, two years ago I had built with my friend some tubes amps (211-845 and others), I rejected them, they are too hot expecially in summer and they require a lot of time before to go in ideal conditions , so I turned to build a Shigaclone. It sounds good, but not so smooth and refined as the tubes amps.

3rd October 2010, 02:03 PM	#4
lp62 diyAudio Member Join Date: Feb 2010	Excuse me I said Shigaclone because I did also the transport CD, I would said better Gainclone. Best Regards

3rd October 2010, 03:54 PM	#5
n2god58 diyAudio Member Join Date: Oct 2010	any one looking for special effects generator or a dukane 35 watt amplifier or a toa m900 series amp let me know all in good working condition

3rd October 2010, 04:35 PM	#6
wahab diyAudio Member Join Date: Nov 2009 Location: algeria/france	A pair of 2SJ162/2SK1058 biaised at 120/150mA driven by a symetrical differential front end, since this topology suit better to powermos, a +-25V supply ,and you ll have a good sounding 20W amplifier...

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