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Active:
The speaker does not need a ampifier, it has a ampifier build it so all it need is a power (electricity)

Passive:
It need a ampifier to make sound.  You cannot just connect it to your sound card. Also, you cannot connect it to the power outlet on the wall
Originally posted by d228216 at 2005-5-3 12:30 PM:

Just vice-versa
I think it's the other way around.
What you're refering is for a control unit.
We are talking about speakers.
http://www.mmproductions.co.uk/faqspe4.html

Active=Powered=No external Ampifiler needed
Most Sub-woofer and computer speaker

Passive=Need and Ampifiler
Most common home audio speaker
Originally posted by hkcitywong at 2005-5-3 12:17 PM:
thx, 我見的d speaker有音量control,是不是同active/passive 有關?
If you have volumn control on the speaker, it is very likley that it is active.
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