Salas hotrodded blue DCB1 build - Page 159 - diyAudio
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Old 17th January 2012, 04:43 PM   #1581
stajo is online now stajo  Sweden
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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
: 130mm max.
height: 56mm max

Best regards
Staffan
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Old 17th January 2012, 05:06 PM   #1582
Salas is offline Salas  Greece
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That's over 220VA, should be fine.
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Old 21st January 2012, 09:02 PM   #1583
asabulu is offline asabulu  United States
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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.
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Old 22nd January 2012, 01:17 AM   #1584
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Really well done, I like it. You don't see too many balanced versions. Thanks for sharing.
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Old 22nd January 2012, 01:22 AM   #1585
Salas is offline Salas  Greece
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Nice one asabulu.
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Old 22nd January 2012, 01:51 AM   #1586
syklab is online now syklab  Hong Kong
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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
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Old 22nd January 2012, 03:02 AM   #1587
Salas is offline Salas  Greece
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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.
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Old 22nd January 2012, 12:26 PM   #1588
weskoki is offline weskoki  Europe
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Default Resistor recommendation

Guys what resistors do you recommend for Hot rod ?
Is Kiwame 10R / 5 Watt ok?
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Old 22nd January 2012, 12:47 PM   #1589
VT67 is offline VT67  Belgium
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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
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Old 22nd January 2012, 02:18 PM   #1590
Tea-Bag is offline Tea-Bag  United States
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Quote:
Originally Posted by weskoki View Post
Guys what resistors do you recommend for Hot rod ?
Is Kiwame 10R / 5 Watt ok?
Quote:
Originally Posted by VT67 View Post
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
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.
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