Hi,
I havent been able to find what each card takes in current but if I understand it right av 50 VA 2*15 V tranny is what is recommended?
Then this will be more then enough for 4 cards?
Specifications
voltage: 2 x 15V
current: 2 x 7.50A
regulation: 6%
weight: 2.70kg
Ø: 130mm max.
height: 56mm max
Best regards
Staffan
I havent been able to find what each card takes in current but if I understand it right av 50 VA 2*15 V tranny is what is recommended?
Then this will be more then enough for 4 cards?
Specifications
voltage: 2 x 15V
current: 2 x 7.50A
regulation: 6%
weight: 2.70kg
Ø: 130mm max.
height: 56mm max
Best regards
Staffan
Finally, finished my first DIY project -- a balanced DCB1
This basically copied the design of johnwmclean with a quad gang pot for volume control and an extra rectifier in the ground loop breaker -- Thanks John for your help regarding my silly questions. Also thanks to tea-bag for his help. Still have 2 boards to come and can't wait for another build.
I am currently running at 400ma (i.e. with 5R resistors). DC output is around 1mv for both channels -- dead silence. Sounds really good too. Thanks Salas for making this possible and all the help from everyone.
This basically copied the design of johnwmclean with a quad gang pot for volume control and an extra rectifier in the ground loop breaker -- Thanks John for your help regarding my silly questions. Also thanks to tea-bag for his help. Still have 2 boards to come and can't wait for another build.
I am currently running at 400ma (i.e. with 5R resistors). DC output is around 1mv for both channels -- dead silence. Sounds really good too. Thanks Salas for making this possible and all the help from everyone.
Attachments
Very nice built.
Hi Salas,
How should I wire the input and output when I need to support both parallel and RCA input and /or output say :
1. Input from both parallel and RCA,
output to amp with parallel only
2. Input both parallel and RCA,
Output to amp with RCA only
Thanks
Hi Salas,
How should I wire the input and output when I need to support both parallel and RCA input and /or output say :
1. Input from both parallel and RCA,
output to amp with parallel only
2. Input both parallel and RCA,
Output to amp with RCA only
Thanks
If you mean having an additional pair of outputs, for driving an active sub for instance, wire the second pair with 100R in line resistors tapping off the main ones.
Resistor recommendation
Guys what resistors do you recommend for Hot rod ?
Is Kiwame 10R / 5 Watt ok?
Guys what resistors do you recommend for Hot rod ?
Is Kiwame 10R / 5 Watt ok?
I think the Kiwame's will do the job. I'm gonna use Mills 1% Wirewound 5W and Dale NS5 1% Wirewound 5W. Still have to build it though.
Regards
Regards
I'd shoot for the lowest ppm.
The one's I sell with the full kit are oversized and 50PPM,
The Mills are even better ~20PPM.
Some metal films of MOX one's are 250-350 PPM.
The Dale NS5's are also 20ppm, don't know about the Kiwame's. Not much information found about this particular spec.
I have a question about the relay. Is this Panasonic Low Signal Relays a good substitute for the Omron?
Regards
I have a question about the relay. Is this Panasonic Low Signal Relays a good substitute for the Omron?
Regards
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Kiwame are rebranded KOA SPR, you can find the datasheet easily.
BTW they're carbon film so you can expect a much higher one (350ppm).
I've tried Mills in that position and they sound good but they somewhat hide details.
I'm going to try Caddocks MP930 next week.
For fuller sound the hot rod resistors are not the most important components...
Very important are also the signal resistors and the 100uF caps.
Can somebody help me out with this please? Want to make sure that I order the correct part.
Regards
Mounted them some hours ago... wow! 😎
In tha last months I've used a crossover MOX to recover from the closed and no much detail given by Mills, but those MOX had a bit of harsness that I couldn't manage to remove fiddling with other components...
The Caddocks are simply right: full and open, detailed, never harsh, gorgeous voices.
Soundstage wider and deeper too.
The best money I've spent on the DCB1! 🙂
Well, I was wrong... Caddocks give also a fuller sound... 😉
10R
Yes, they are (7.95$ each from PCX)... but not incredibly more than Mills (2.50$ each from PCX) that are widely used with the DCB1.
The sound difference is worth 3x price? IMHO absolutely yes...
At the end they're 10 bucks more... a couple of good quality beers, isn't it? 😉