I imagine they have a circuit in which can detect the power spikes from the amplifier playing the bass notes. Or a small speaker.

 

you can do it puttin it into the speaker terminals on the amp but it has to be bassy i believe

 

Thank You Both Ill Give It A Try And See What Happens

Cheers Ash

 

you can also put it on remote and earth, which is prob best but try both mate

 

I Have Seen These Pulsing Cold Cathode Tubes In Various Show Cars & Was Just Wondering How They Make Them Pulse To The Subwoofers? I Was Thinking It Could Be Done By Just Bridging The Wires From The Cathode's To The Amp?

Any Ideas?

Cheers Ash

No, No, No, No, No, and No.

They are designed to run of a voltage at a certain frequency, not whatever your amp spits out. and you dont know what it could potentially do to your amp.

They work through a sound to light processor, with a small microphone built in.

 

So we are talking about a unit such as this just wired into a perminent current?

http://www.awd-it.co.uk/scripts/prodview.asp?idproduct=1004

Cheers Ash

 

try this it allows you to have the neon on constant or pulse to music

http://cgi.ebay.co.uk/SOUND-ACTIVATED-NEON_W0QQitemZ390137354601QQcmdZViewItemQQptZUK_Computing_DesktopComponents_RL?hash=item5ad5ff9969