My vintage look Chip Amp
Hi,
This is my new amp.
It's based on a Brian GT LM3886 Kit with some modifications.
The sound is very good to my ears, this the best power amp that I ever had.
The enclosure is mainly made of wood.
Despite the holes I have made under and over the heatsinks, the temperature grows rather rapidly in the enclosure. I will have to change the back plate layout so that I can have the heatsinks outside.
Some Technical details are available here :
http://www.diyaudio.com/forums/chip-amps/187908-lack-bass-lm3886-4.html
Bye.
Hi,
This is my new amp.
It's based on a Brian GT LM3886 Kit with some modifications.
The sound is very good to my ears, this the best power amp that I ever had.
The enclosure is mainly made of wood.
Despite the holes I have made under and over the heatsinks, the temperature grows rather rapidly in the enclosure. I will have to change the back plate layout so that I can have the heatsinks outside.
Some Technical details are available here :
http://www.diyaudio.com/forums/chip-amps/187908-lack-bass-lm3886-4.html
Bye.
Attachments
I have the same kit and was able to use internal heat sinks but with a very open bottom. Maybe a slot would be preferable to the holes. And as troystg suggests, the feet are 5/8" high.
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Mallard: looks neat. Nice idea to have timber enclosure. I have the same chips but have done nothing with them.
I know I've already posted a pic of my LM4780 chip amp and power supply, but I couldn't resist posting a couple of pics of my DAC/Pre amp I've just finished coupled with my LM4780 amp:
The DAC/Pre amp with IR reciver, motorized pot controlling a Lightspeed Attenuator and channel selector/mute on the left knob using a rotary encoder. All controlled by a PIC16F690 microprocessor.
Fits in very nicely with my original PSU and chipamp 🙂
Simply Beautiful !!
An externally hosted image should be here but it was not working when we last tested it.
still allot to do......
BUF634 headphone amplifier
My headphone amplifier based on BUF634T, the PCB is designed as dual mono but I am using it as stereo. I the near future I will replace this LM317/337 regulator with tracking preregulator based on Linear technology LT's, that is why the wiring isn't done so well.
For the casing I have used old PCBs and two aluminum profiles from other casing. RCAs and headphone jack are from Neutrik, volume button and rhodium IEC are from ebay. I really like it visualy and sonicaly, sound is very neutral with lots of dynamics and really goes well with mine HD598.
Best Regards,
Ales
My headphone amplifier based on BUF634T, the PCB is designed as dual mono but I am using it as stereo. I the near future I will replace this LM317/337 regulator with tracking preregulator based on Linear technology LT's, that is why the wiring isn't done so well.
For the casing I have used old PCBs and two aluminum profiles from other casing. RCAs and headphone jack are from Neutrik, volume button and rhodium IEC are from ebay. I really like it visualy and sonicaly, sound is very neutral with lots of dynamics and really goes well with mine HD598.
Best Regards,
Ales
Attachments
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