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Aleph 4 signal leads
Aleph 4 signal leads
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Old 1st April 2008, 11:44 AM   #1
PixelPlay is offline PixelPlay  Australia
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Default Aleph 4 signal leads

Hi
I need some advice on the maximum length of the signal leads for a pair of Aleph 4's. I know that they should be as short as possible, however due to limited space I would like to know what would be the maximum length that would not effect the performance? What problems may arise if they were too long?

Thank you for your time

Cheers
Greg
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Old 1st April 2008, 12:46 PM   #2
PixelPlay is offline PixelPlay  Australia
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Just to clarify:
The signal leads from the main board to the fet boards.

cheers
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Old 1st April 2008, 09:11 PM   #3
Nelson Pass is offline Nelson Pass  United States
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Aleph 4 signal leads
Usually you can get away with a foot or so without problems.
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Old 1st April 2008, 11:08 PM   #4
GRollins is offline GRollins  United States
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Just make sure the Gate stopper resistor (the 221 Ohm resistor in series with each output MOSFET's Gate) is on the far end, close to the output device.

Grey
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Old 2nd April 2008, 12:11 AM   #5
PixelPlay is offline PixelPlay  Australia
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Thank you both for your help
The 221 Ohm resistor in series with each output MOSFET's Gate is on the output boards next to the mosfets ( very close ). Will the length towards 10 inches degrade the sound?
Cheers
Greg
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Old 2nd April 2008, 03:02 AM   #6
Babowana is offline Babowana  South Korea
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Quote:
Originally posted by PixelPlay


Will the length towards 10 inches degrade the sound?



I consider the length as a part of interconnect line. I would try different lengths of interconnect lines to learn about the different sound. In general, I do not feel any sound difference when I tried different interconnect line lengths (0.5m-3m).
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Old 5th April 2008, 03:28 AM   #7
BFNY is offline BFNY  United States
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sorry, perhaps I missed it due to the NP server crash. Could someone direct me to the F4 schematic? I am eXperimenting with a 1-10Mohm impedance converter for my FMMPX project. Tube tuners want a -wide- load.
Bob
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Old 5th April 2008, 03:46 AM   #8
GRollins is offline GRollins  United States
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http://www.firstwatt.com/downloads.htm

Grey
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Old 5th April 2008, 05:38 AM   #9
BFNY is offline BFNY  United States
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Grey;
Many thanks. Attached is the circuit I have been playing with to convert from tube tuners to a 50k ohm input impedance on the circuit I'm using for FMMPX mono to stereo conversion
Bob
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