What's new

Dumb Question - two channels into one (1 Viewer)

Stephen Dodds

Second Unit
Joined
Aug 29, 1998
Messages
354
I'm sure there is a reason one shouldn't run two inputs into one amplifier channel. Can someone re-enlighten me to what that reason is?

Thanks

Steve
 

Roger Dressler

Stunt Coordinator
Joined
Jan 15, 1999
Messages
187
Assuming you mean tying the two signal sources together a hardwire connection like a Y adapter, yes, it is a bad idea. Signal sources like preamps, DVD players, cassette decks, STBs, all have low source resistance, usually an opamp with a 100 ohm breakout resistor. When driving the 10k-50k typical input of an amplifier or other preamp input, it's fine. But when two of them try to drive each other, it's like loading the output with 100 ohm load to ground. The result is usually distortion and loss of signal level.
 

Users who are viewing this thread

Forum statistics

Threads
356,497
Messages
5,114,328
Members
144,103
Latest member
sajidjadoonisbb
Recent bookmarks
0
Top