When and How to use 12v trigger on sub

ginjaninja · 23 Aug 2010 at 11:01

Just buying all my cabling for an imminent purchase of Onkyo 808 and B&W 684 Home Theatre with ASW610 Sub.

What is the trigger? to turn on the sub power from standby? Can i expect to get a trigger cable in the package?

thanks

lucid · 23 Aug 2010 at 11:11

It's only useful if your AV receiver has a 12v trigger output in order to switch on external devices. Does your Onkyo have such a trigger output?

Most of us don't bother even when the feature is available. Decent subs autosense when a signal is present and switch themselves on.

Chris1712 · 23 Aug 2010 at 12:43

Generally a sub will have decent enough auto sense to not need a trigger. Use the trigger for your projector/electric screen.

ginjaninja · 23 Aug 2010 at 13:49

the amp and the asw610 support a trigger. just read this so i think i will need. ocuk sells 5m for a few pounds
Standby:

With the switch set to Standby the
subwoofer will become active when 12V is applied to
the Trigger Input (Item 10 in Figure 1). Zero volts at the
input will return the subwoofer to sleep. The indicator
will glow green when the subwoofer is active and red

when the subwoofer is in sleep.

visibleman · 23 Aug 2010 at 15:31

The 808 has sub phono outs and the ASW610 has auto sense, so you shouldn't need to use a trigger!

ginjaninja · 23 Aug 2010 at 16:01

visibleman said:
The 808 has sub phono outs and the ASW610 has auto sense, so you shouldn't need to use a trigger!

oh yes

Functions: Input level (line in)
Input level (speaker in)
Low-pass filter frequency
Low-pass filter bypass
Bass extension
Bass roll-off alignment
Auto sense on/standby

Phase switch

thanks
just saved me £3