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March 01, 2021, 09:08:30 AM

Author Topic: 220 Ohm at the output  (Read 183 times)

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Offline AB2KH

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220 Ohm at the output
« on: January 15, 2021, 01:44:41 PM »
Doc,PB,PJ,
 
Not having read my copy of Electronics for Dummies could you tell me the purpose for the 220 ohm resistor at the output #2 (or is it) #1 . Does this have to do with output impedance adjustment for bi amping or for sub woofer connection?

Chris/AB2KH

Offline Paul Birkeland

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Re: 220 Ohm at the output
« Reply #1 on: January 15, 2021, 01:53:45 PM »
It's possible that a little resistance between the outputs could help to prevent interactions between the components you may have connected to each output.  Having said that, I've never actually run into this as a problem, but we use the resistors anyway.  It also makes the jacks much easier to wire together. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline AB2KH

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Re: 220 Ohm at the output
« Reply #2 on: January 15, 2021, 02:16:22 PM »
Paul,

Thank you for your answer.  So in effect it could benefit in the implementation of bi amping ?

Chris/AB2KH

Offline Paul Birkeland

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Re: 220 Ohm at the output
« Reply #3 on: January 15, 2021, 04:43:44 PM »
It certainly won't hurt if you're biamping.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man