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Title: Impedance match needed
Post by: Aharon on March 18, 2004, 04:56:03 PM

I need a sort of DI box to plug guitar to unbalanced lowZ input(600 ohm).
Anybody know what I can build?.Schems,etc.
Thanks
Aharon

Title: Impedance match needed
Post by: csj on March 18, 2004, 05:26:04 PM

http://sound.westhost.com/project35.htm

Maybe?

Title: Impedance match needed
Post by: Aharon on March 18, 2004, 05:33:54 PM

I need the guitar directly into 600 ohms unbalanced.
Aharon

Title: Impedance match needed
Post by: spongebob on March 18, 2004, 06:30:53 PM

You could try a basic opamp buffer, I think most opamps have no trouble with a 600 ohm load, their output impedance is usually very low.

Title: Impedance match needed
Post by: Aharon on March 18, 2004, 06:41:06 PM

Thanks sponge.Take a look at the wireless post.
Aharon

Title: Impedance match needed
Post by: Boofhead on March 20, 2004, 06:21:43 PM

A NE5534 or NE5532 opamp in a non-inverting configuration should do just fine- you won't get a simpler circuit.

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