tubehunter
15-09-2009, 20:21
Hi.
I hadn't posted pictures of my diy system yet so....
http://i514.photobucket.com/albums/t350/halx00/IMG_4733.jpg
CSS FR125s fullrange drivers in bass reflex cabinets, made from solid Iroko hardwood reclaimed from the local high school science labs, outrageous what schools waste.
With 1/4in walled Aluminium tube ports on Atacama Nexus 6 stands.
Karen would like the speakers mounted on the wall either side of the Sony 40in Brava TV, I'm not sure they will sound as good on wall brackets.
Sony PS3 streams media from a server upstairs which has 8 1Tb drives for storage.
The server is a XP box with Tversity and PS3 Media Server installed which transcodes files the PS3 doesn't support natively. Works very well, fast.
http://i514.photobucket.com/albums/t350/halx00/IMG_4723.jpg
The Copper Dac has a CS4397 Dac chip powered by three independent power supplies and its own transformer. This feeds into the grid of the first 6n3p-DR triode via paper in oil caps, this is configured as a common cathode triode amplifier and feeds the second triode in the envelope, which is configured as a cathode follower. Output is through Mundorf supreme caps, a very small amount of feedback is used to increase bandwidth and lower distortion.
The Valve power supply uses a large transformer which feeds an EZ81 rectifier then RCRC Obligato film smoothing caps, these really do improve the sound.
Case is made from sheet copper with stainless steel base and Iroko side cheeks.
http://i514.photobucket.com/albums/t350/halx00/IMG_4724.jpg
The Power amp is a Naim 135/Avondale NCC200 clone but without the regulation and the crippling protection circuit.
Built totally monobloc with 500vac transformers and huge 10000uf 100v caps.
Case is 3mm Aluminuim with solid copper base with acrylic front panel.
Volume control is by a stepped attenuator using high tolerance smt resistors.
This has massive control and power. I have built various valve amps but still go back to this.
I do have a Nelson Pass F5 on the bench partly constructed with even beefer power supplies being a class A design.
So the future is....
I hadn't posted pictures of my diy system yet so....
http://i514.photobucket.com/albums/t350/halx00/IMG_4733.jpg
CSS FR125s fullrange drivers in bass reflex cabinets, made from solid Iroko hardwood reclaimed from the local high school science labs, outrageous what schools waste.
With 1/4in walled Aluminium tube ports on Atacama Nexus 6 stands.
Karen would like the speakers mounted on the wall either side of the Sony 40in Brava TV, I'm not sure they will sound as good on wall brackets.
Sony PS3 streams media from a server upstairs which has 8 1Tb drives for storage.
The server is a XP box with Tversity and PS3 Media Server installed which transcodes files the PS3 doesn't support natively. Works very well, fast.
http://i514.photobucket.com/albums/t350/halx00/IMG_4723.jpg
The Copper Dac has a CS4397 Dac chip powered by three independent power supplies and its own transformer. This feeds into the grid of the first 6n3p-DR triode via paper in oil caps, this is configured as a common cathode triode amplifier and feeds the second triode in the envelope, which is configured as a cathode follower. Output is through Mundorf supreme caps, a very small amount of feedback is used to increase bandwidth and lower distortion.
The Valve power supply uses a large transformer which feeds an EZ81 rectifier then RCRC Obligato film smoothing caps, these really do improve the sound.
Case is made from sheet copper with stainless steel base and Iroko side cheeks.
http://i514.photobucket.com/albums/t350/halx00/IMG_4724.jpg
The Power amp is a Naim 135/Avondale NCC200 clone but without the regulation and the crippling protection circuit.
Built totally monobloc with 500vac transformers and huge 10000uf 100v caps.
Case is 3mm Aluminuim with solid copper base with acrylic front panel.
Volume control is by a stepped attenuator using high tolerance smt resistors.
This has massive control and power. I have built various valve amps but still go back to this.
I do have a Nelson Pass F5 on the bench partly constructed with even beefer power supplies being a class A design.
So the future is....