batteries in crossover, like JBL

MisterTwister · 20th December 2009, 03:33 AM

JBL is using 9v batteries in their Everest system. Can someone explain how to connect batteries to a crossover?
I don't expect any miracles from adding a battery, but still would like to try it.

Robh3606 · 20th December 2009, 03:43 AM

What you do is this. You replace the existing capacitor with 2 capacitors that are double the originals value in series. That gives you the same value. At the node where the caps join you put a 2-3meg resistor. You take the other end of the resistor and attach it to the +9V of the battery the battery negative goes to ground.

You don't get miracles you get better low level resolution.

Rob

MisterTwister · 20th December 2009, 03:56 AM

Thank you

planet10 · 20th December 2009, 05:03 AM

There are at least a couple pages in the Elsinore thread about this.

dave

tvrgeek · 20th December 2009, 11:15 AM

I thought this was put to bed a long time ago?

20th December 2009, 03:33 AM	#1
MisterTwister diyAudio Member Join Date: Feb 2006 Location: usa Blog Entries: 1	batteries in crossover, like JBL JBL is using 9v batteries in their Everest system. Can someone explain how to connect batteries to a crossover? I don't expect any miracles from adding a battery, but still would like to try it.

20th December 2009, 03:43 AM	#2
Robh3606 diyAudio Member Join Date: Nov 2002 Location: Destiny	What you do is this. You replace the existing capacitor with 2 capacitors that are double the originals value in series. That gives you the same value. At the node where the caps join you put a 2-3meg resistor. You take the other end of the resistor and attach it to the +9V of the battery the battery negative goes to ground. You don't get miracles you get better low level resolution. Rob __________________ "I could be arguing in my spare time"

20th December 2009, 05:03 AM	#4
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	There are at least a couple pages in the Elsinore thread about this. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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20th December 2009, 03:56 AM	#3
MisterTwister diyAudio Member Join Date: Feb 2006 Location: usa Blog Entries: 1	Thank you

20th December 2009, 11:15 AM	#5
tvrgeek diyAudio Member Join Date: Dec 2009 Location: Md	I thought this was put to bed a long time ago?

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