Rockbox mail archiveSubject: Re: Slightly OT: Channel phase
Re: Slightly OT: Channel phase
From: SteveR <raichea_at_yahoo.com>
Date: Mon, 6 Jun 2005 10:17:22 +0100
> 9V !!!???
> Quick check:
> 9Volts into 4Ohms -> 2.2Amps
> 2.2Amps _at_ 9Volts -> 20Watts
> That'll be "20Watts RMS" or "26Watts peak-to-peak" or "about
> 1'300Watts PMPO"
> So 9V would kill most desk-top speakers, but work well with stage kit.
But a little rectangular 9V battery can supply only limited current...and
the voltage drops rapidly even with currents as low as 50mA.
Received on 2005-06-06