Subwoofer auto power on

[the_DOOMer]

Hail to everyone

I'm in a middle of a subwoofer project.
My box i ready, the amp is ready (Holton's symmetrical 400w mos amp) and i have the speaker.

I'm looking for:

1. A good working phase regulator (0-180 degrees)
2. Schematic for automatic power on whenever a signal appears out of the LFE channel of the processor.

Can anyone help me please

1024x bye for now

 

[Alfetta87]

Hi doomer,

Please find in your eMail two schematics (property of NHT😀) of some subwoofer design. One has a automatic switch on system, the other an intersting multistep phase switch (switches not only 0° and 180° but also 90° and 270°).

Hope this will help you.

Cheers
- dan

 

[Bensen]

Hey,

Try project 38 on Rod's site "Signal Detecting Auto Power-On Unit"

http://sound.westhost.com/project38.htm

Greetz

Ben

 

[navin]

Please find in your eMail two schematics (property of NHT😀) of some subwoofer design. One has a automatic switch on system
- dan

i too would love to have a schematic for a auto switch that can be triggered by the swtiched power supply of my AVR (marantz sr7000) or other means

 

[george a]

As per Navin

Me too please ..

 

[Keld]

i too would love to have a schematic for a auto switch that can be triggered by the swtiched power supply of my AVR (marantz sr7000) or other means

Another of Rods projects: http://sound.westhost.com/project79.htm
or:
http://sound.westhost.com/project40.htm


DVC Keld