I am planing to build my first Gainclone and require your assistance... - Page 2

john blackburn · 20th March 2008, 04:27 PM

Maybe you could build yourself a set of chipamp friendly speakers instead?

AndrewT · 20th March 2008, 04:39 PM

Quote:

Originally posted by Tripmaster
Do you have any other suggestions?

yes, look at using one of the driver amps with discrete output stage. Search here for threads.
My preference is for a good 100W into 8ohm discrete amplifier that has excellent build support.

Tripmaster · 20th March 2008, 04:45 PM

It’s a possibility…but it would be nice to have an amp that will drive a wide range of speakers at an acceptable level

peranders · 20th March 2008, 06:21 PM

Quote:

Originally posted by Tripmaster
I am hoping some of you may be able to help. I am new to Gainclones and electronics.

Does any one know if I can buy the Chipamp.com or Audiosector.com PCBs in the UK? It would be easier to follow one of these kits.

This is good:
http://www.national.com/an/AN/AN-1192.pdf
http://www.national.com/an/AN/AN-898.pdf
http://www.national.com/appinfo/audi...gn_Guide15.xls

Tripmaster · 20th March 2008, 06:37 PM

As I have already purchased the Chipamp dual mono kit (possibly a mistake with my speakers) can anyone recommend a way of expanding this kit to deliver suitable power to drive these speakers?

I currently use an Alchemist Kraken Mk1 integrated amp in my existing system.

peranders · 20th March 2008, 06:44 PM

You could also build the amp and see what you'll get.

AndrewT · 20th March 2008, 06:46 PM

Hi,
have a look at the parallel chipamp schematic and see if your PCB can be adapted to match.
This way you could design for 60W into 8ohm for each of the paralleled chipamps and the pair will cope with the low impedance load presented by the B&Ws.
You still get a maximum of 60W into 8r0 (and the current equivalent of 120W into 4r0) but less likely to trigger protection on current transients or on over-temperature.

Tripmaster · 20th March 2008, 06:48 PM

Quote:

Originally posted by AndrewT
Hi,
have a look at the parallel chipamp schematic and see if your PCB can be adapted to match.
This way you could design for 60W into 8ohm for each of the paralleled chipamps and the pair will cope with the low impedance load presented by the B&Ws.
You still get a maximum of 60W but less likely to trigger protection on current transients or on overtemperature.

Thanks, i will

AndrewT · 20th March 2008, 06:51 PM

Alternatively,
design 4 monoblocks to drive each of the drivers and their respective half of the crossover independently. =Passive bi-amping.

Andy Bartha · 20th March 2008, 07:29 PM

I agree with AndrewT. You should build 4 mono blocks and bi amp. Many years ago I upgraded two pairs of Dynaco MIIIs for a friend to bi amp a pair of B&W 801s. Worked great and the sound was outstanding. You can build 4 chip amps for less than any decent 100w amp.

20th March 2008, 06:44 PM	#16
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	You could also build the amp and see what you'll get. __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

20th March 2008, 06:51 PM	#19
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Passive Bi-amping Alternatively, design 4 monoblocks to drive each of the drivers and their respective half of the crossover independently. =Passive bi-amping.

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20th March 2008, 04:27 PM	#11
john blackburn diyAudio Member Join Date: Sep 2006 Location: Wirral UK	Maybe you could build yourself a set of chipamp friendly speakers instead?

20th March 2008, 04:45 PM	#13
Tripmaster diyAudio Member Join Date: Feb 2008 Location: UK	It’s a possibility…but it would be nice to have an amp that will drive a wide range of speakers at an acceptable level

20th March 2008, 06:37 PM	#15
Tripmaster diyAudio Member Join Date: Feb 2008 Location: UK	As I have already purchased the Chipamp dual mono kit (possibly a mistake with my speakers) can anyone recommend a way of expanding this kit to deliver suitable power to drive these speakers? I currently use an Alchemist Kraken Mk1 integrated amp in my existing system.

20th March 2008, 06:46 PM	#17
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, have a look at the parallel chipamp schematic and see if your PCB can be adapted to match. This way you could design for 60W into 8ohm for each of the paralleled chipamps and the pair will cope with the low impedance load presented by the B&Ws. You still get a maximum of 60W into 8r0 (and the current equivalent of 120W into 4r0) but less likely to trigger protection on current transients or on over-temperature.

20th March 2008, 07:29 PM	#20
Andy Bartha diyAudio Member Join Date: Sep 2004 Location: Oregon	I agree with AndrewT. You should build 4 mono blocks and bi amp. Many years ago I upgraded two pairs of Dynaco MIIIs for a friend to bi amp a pair of B&W 801s. Worked great and the sound was outstanding. You can build 4 chip amps for less than any decent 100w amp.