Jaycar kit amps, any good?

michael · 5th March 2004, 10:22 PM

Hey all, Im a very much newbie to the electronics side of audio, so would prefer to build something that will be easy and pre designed, also premade PCBs would be best.
Anyway onto my main question, I upgraded my HT amp and now have preouts, i would liek to build power amps to connect up, they would need to be more powerful than what the amp already has, its a NAD T742 , go to the closer look section for full specs.

Anyway i was looking at 2 of the jaycar kits, the 115w amplifier, the 100w low distortion, an also the new studio 350.
I was wonder which of these would provide the best value, also maybe worth mentioning the playmaster kit amp, as it looks very cheap when looking at the prices of cases and heatsinks etc.

fr0st · 7th March 2004, 06:22 AM

All of jaycar's kits are designed by silicon chip magazine. They will all sound good, just not as good as some of the more established diy designs.
As a starter, I'd say go for it.

steverb · 9th March 2004, 06:22 AM

Cant go far wrong with those amps.
These AMPS get low distortion by heaps of -ve feedback rather
than great/complex design.
Be prepared to replace the driver transistors with genuine
ONSemi/Motorolla
I thought about building these amps, after doing heaps of searchs
for opinions the concensus was that they dont sound as good
as the ASKA or 3a(An AUS DIYamp). Dont know why, the designs
are fairly similar

Have a look here (3a amp)
http://www.sound.au.com/

michael · 9th March 2004, 11:00 PM

Project 3A looks quite nice and people seem to recomend it, 100W should be noticeable over my NADs 50w, I will order the PCBs soon and have it as a slow going project, loudspeakers are on the top of my list at the moment (sick of having the drivers just sitting there)

cheers

5th March 2004, 10:22 PM	#1
michael diyAudio Member Join Date: Sep 2003 Location: Adelaide Hills	Jaycar kit amps, any good? Hey all, Im a very much newbie to the electronics side of audio, so would prefer to build something that will be easy and pre designed, also premade PCBs would be best. Anyway onto my main question, I upgraded my HT amp and now have preouts, i would liek to build power amps to connect up, they would need to be more powerful than what the amp already has, its a NAD T742 , go to the closer look section for full specs. Anyway i was looking at 2 of the jaycar kits, the 115w amplifier, the 100w low distortion, an also the new studio 350. I was wonder which of these would provide the best value, also maybe worth mentioning the playmaster kit amp, as it looks very cheap when looking at the prices of cases and heatsinks etc.

9th March 2004, 06:22 AM	#3
steverb diyAudio Member Join Date: May 2003 Location: Ak	Cant go far wrong with those amps. These AMPS get low distortion by heaps of -ve feedback rather than great/complex design. Be prepared to replace the driver transistors with genuine ONSemi/Motorolla I thought about building these amps, after doing heaps of searchs for opinions the concensus was that they dont sound as good as the ASKA or 3a(An AUS DIYamp). Dont know why, the designs are fairly similar Have a look here (3a amp) http://www.sound.au.com/ __________________ The DIY bug. Nothing is ever finished.

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7th March 2004, 06:22 AM	#2
fr0st diyAudio Member Join Date: Dec 2002 Location: Australia	All of jaycar's kits are designed by silicon chip magazine. They will all sound good, just not as good as some of the more established diy designs. As a starter, I'd say go for it.

9th March 2004, 11:00 PM	#4
michael diyAudio Member Join Date: Sep 2003 Location: Adelaide Hills	Project 3A looks quite nice and people seem to recomend it, 100W should be noticeable over my NADs 50w, I will order the PCBs soon and have it as a slow going project, loudspeakers are on the top of my list at the moment (sick of having the drivers just sitting there) cheers

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