Aksa

sdman · 17th November 2001, 01:16 PM

Has anybody built the Aksa amp and your opinion?

Sam

audiorasp · 17th November 2001, 11:10 PM

I built the 55W version, and am about to finish up the 100w kit.

I think the AKSA is a great amplifier. Excellent highs midrange and bass, all presented in a way that makes you feel that you can listen to this amp for a long time.
I agree with this quote from the review on TNT Audio:
"it sounded so open and dynamic. Bass was very deep and powerful, the midrange was smooth. The higher frequencies were possibly a bit recessed, but I don't see (hear) that as a problem. It is my opinion that much of the "audiophile" gear in the marketplace confuses brightness or even harshness in the treble range for "detail." The AKSA doesn't. The biggest indicator, in my opinion, of the quality of the dual power supply version is that I forgot about price and value and enjoyed the music. The "for the money" qualifier disappeared entirely: this is a great amp."

These sonic qualities, along with the fact that it is available as a simple staight foreward kit, makes the AKSA a serious amp to consider.

NickInDallas · 17th January 2002, 04:19 AM

See my post under "How good are the Pass/AKSA amps in reality?" for a review

timc · 17th January 2002, 05:07 AM

I built an earlier version of the ASKA 55. It has no protection at all, unless you count the rail fuses.

phil · 17th January 2002, 08:14 AM

Aska builders now have their own forum,
http://www.harmonicdiscord.com/forum...m.php?forum=42
Share your experiences with others who have built this great kit.
Phil.

JohnR · 17th January 2002, 08:39 AM

I think it's a great kit! PCB is easy to put together if you have a little soldering experience. Nothing complicated or awkward in the rest of it. Mine is only a few hours old so is still breaking in.

JohnR

Oz_Audio · 17th January 2002, 09:00 AM

I have built a pre assembled 55w module as I have limited electronics experience. The amp is sensational, my wife and I are amased at the depth and width of the sound stage. Well worth the small amount of money for the amp. I plan to build the pre amp with a DACT input selector soon.
My main speakers are also DIY- the TLb on the www.t-linespeaker.org site. They work well together.

JohnR · 17th January 2002, 10:56 AM

Heh, well, I think you forgot to say "IMHO" :-). I see this is a favorite subject of yours, why I don't know. Personally, I like things that are simple but tuned for sonic performance.

JohnR

jam · 17th January 2002, 01:59 PM

Michel,

I have not found a protection scheme that is completely inert , be it relays or VI limiters. The least obtrusive being rail or line fuses, a large output stage is required but has its own design issues. Maybe you could shed some light on your solution.

Jam

jam · 17th January 2002, 08:22 PM

Michel,

I see where you are going but you still have to deal with the relay. I usually put a small cap across the relay contacts but still does not solve the problem of the contacts corroding, apart from that I think it is an excellent idea for bipolar output stages as you mentioned.
I am myself a big fan of mosfets and build the output stage to handle a direct short with only the supply rail fuses blowing.

Thanks,
Jam

17th November 2001, 01:16 PM	#1
sdman diyAudio Member Join Date: Oct 2001 Location: Southwest	Has anybody built the Aksa amp and your opinion? Sam __________________ Sam

17th January 2002, 04:19 AM	#3
NickInDallas diyAudio Member Join Date: Jan 2002 Location: Dallas, TX	AKSA55 Performance See my post under "How good are the Pass/AKSA amps in reality?" for a review

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17th November 2001, 11:10 PM	#2
audiorasp diyAudio Member Join Date: Feb 2001 Location: Sacramento, CA	I built the 55W version, and am about to finish up the 100w kit. I think the AKSA is a great amplifier. Excellent highs midrange and bass, all presented in a way that makes you feel that you can listen to this amp for a long time. I agree with this quote from the review on TNT Audio: "it sounded so open and dynamic. Bass was very deep and powerful, the midrange was smooth. The higher frequencies were possibly a bit recessed, but I don't see (hear) that as a problem. It is my opinion that much of the "audiophile" gear in the marketplace confuses brightness or even harshness in the treble range for "detail." The AKSA doesn't. The biggest indicator, in my opinion, of the quality of the dual power supply version is that I forgot about price and value and enjoyed the music. The "for the money" qualifier disappeared entirely: this is a great amp." These sonic qualities, along with the fact that it is available as a simple staight foreward kit, makes the AKSA a serious amp to consider.

17th January 2002, 05:07 AM	#4
timc diyAudio Member Join Date: Aug 2001 Location: Melbourne/Australia	I built an earlier version of the ASKA 55. It has no protection at all, unless you count the rail fuses.

17th January 2002, 08:14 AM	#5
phil diyAudio Member Join Date: May 2001	Aska builders now have their own forum, http://www.harmonicdiscord.com/forum...m.php?forum=42 Share your experiences with others who have built this great kit. Phil.

17th January 2002, 08:39 AM	#6
JohnR diyAudio Member Join Date: Dec 2001 Location: Steak and Kidney	I think it's a great kit! PCB is easy to put together if you have a little soldering experience. Nothing complicated or awkward in the rest of it. Mine is only a few hours old so is still breaking in. JohnR

17th January 2002, 09:00 AM	#7
Oz_Audio diyAudio Member Join Date: Jan 2002 Location: Cairns, Australia	I have built a pre assembled 55w module as I have limited electronics experience. The amp is sensational, my wife and I are amased at the depth and width of the sound stage. Well worth the small amount of money for the amp. I plan to build the pre amp with a DACT input selector soon. My main speakers are also DIY- the TLb on the www.t-linespeaker.org site. They work well together.

17th January 2002, 10:56 AM	#8
JohnR diyAudio Member Join Date: Dec 2001 Location: Steak and Kidney	Heh, well, I think you forgot to say "IMHO" :-). I see this is a favorite subject of yours, why I don't know. Personally, I like things that are simple but tuned for sonic performance. JohnR

17th January 2002, 01:59 PM	#9
jam diyAudio Member Join Date: May 2001 Location: Charlotte,NC,USA	Michel, I have not found a protection scheme that is completely inert , be it relays or VI limiters. The least obtrusive being rail or line fuses, a large output stage is required but has its own design issues. Maybe you could shed some light on your solution. Jam

17th January 2002, 08:22 PM	#10
jam diyAudio Member Join Date: May 2001 Location: Charlotte,NC,USA	Michel, I see where you are going but you still have to deal with the relay. I usually put a small cap across the relay contacts but still does not solve the problem of the contacts corroding, apart from that I think it is an excellent idea for bipolar output stages as you mentioned. I am myself a big fan of mosfets and build the output stage to handle a direct short with only the supply rail fuses blowing. Thanks, Jam