Dear Sirs
A question, in the model DMC-30SS of Spectral, which of the inputs this preamplifier has better performance, input XRL or RCA?
Best Regards
Joao
Hi, after a long period of development, finally the element to the power amplifier. The preamplifier, 100% discreet and with a bandwidth DC to 1.2 MHz,-3dB.
Careful attention was paid on the circuit board and the choice of components for this to be possible, especially semiconductors and...
hello people, I need your help, anyone know the contact email address of the spectral audio? I need to send an email with urgency. The site does not inform on the contact email address.
thanks for your help
jon
but .... continuing
Here is the box for the transformer (power supply), is Affixed to the top and bottom surface are closed-cell neoprene damping sheets and mu-metal.
the mu-metal is excellent to isolation of magnetic fields.
preparing transformer assembly
screen printing .....
Mounting...
Good question .... Steve I'm in a country that does not value what people do. is a hard way to go. If I were in germany, england, or even in the United States would be different. I'll do the best possible for that to happen. Only time will tell.
Here is the motherboard. The line of power supply is based on copper UP-OCC an optimal material to be a ideal transmission line. For the time being, UP-OCC pure copper has been considered the state-of-the-art conductor material in Hi- E nd Audio cable industry.
assembling the first...
Hi
the first photos (developing the boards in Altium Designer. excellent, sophisticated and with a margin of error "null". The best that has passed through my hands).
Board´s (power supply, mother board...)
The boards (phono stage)
preparing the chassis
the elements made, ??to...
Dear Sirs
Since kid, always had a passion for vinyl. The pleasure of listening to music is something magical. I decided to design a project for my simple (denon 103R). phono stage. Follows the same philosophy of the power amplifier (thread 04-10-2013, "project... power amplifier ").
The...
now I understood your question.
much .... much money, and when it comes to a prototype is more expensive development. could go more ahead, but it is not easy for those who are alone in this project without financial support from anyone.
continuation ...
The 1000VA transformer "power supply" is modified (fixation) with this resin.
mounting board of the voltage amplifier (one channel)
output power transistor and power supply for voltage amplifier. It is possible to see one of the channels already mounted...
The project is 100% mine. I was technical maintenance of broadcast video, but the audio has always been my passion. Then I launch this project in prototype
jon