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It is currently 07 May 2021, 03:08

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PostPosted: 22 Mar 2021, 12:06 

Joined: 22 Mar 2021, 11:42
Posts: 2
Hi everyone,

noob here begging for help. I'm trying to assemble my fist amplifier with a Class D circuit and I would like to create a mix for two inputs (main source and additional karaoke microphone). So what I had in mind was a simple passive mixer using 1K resistors on the + wires L&R, before they get to the amplifier.

But I wanted to use some preamplification for both the line-in and the microphone, and it would be a 3+3W for the former and a small 6j1 valve pre-amp for the latter. Both are already assembled with their pots.

So the question is, can I still mix them using 1K 3W Metal Oxide resistors attached to the OUTPUT of the preamps?

Or should I rather attach them to the inputs (right after the potentiometers)?

Or should I change the resistance?

TIA for any help that may come.

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