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Hi everyone, I have a couple sound questions I was hoping the community here might be able to help me with.

I am trying to get the best sound out of an Elmo LX2200 16mm film projector at my work. The projector has a 600ohm, -15 dBm to +6 dBm, Balanced XLR output labeled as 'Aux'. It is mono, but there are two outputs L+R. Currently I am going directly from the L-out directly into a Yamaha QL5.

I put some pretty heavy EQ on cutting off a lot because 16mm optical sound has an incredibly limited range (100-5000hz, ~40db s/n) and have it sounding pretty decent, but thought I'd reach out for advice as I am not that experienced with the live sound side of the things, my background is mostly in video.

Should I be using a DI? the signal is already balanced coming out of the projector, but it is 600-ohm

Currently I just EQ'd until I got it to sound ok, but should I be using any other features of the QL-5? (note this is strictly for live use, not for recording)

Comments

Boswell Sun, 11/26/2017 - 15:38

There shouldn't be any need to use a DI box - you are doing the correct thing by taking a balanced XLR line out from your projector and (presumably) feeding it into an XLR input of the QL5. The QL5 has a 7.5K line input impedance, so you will be getting nearly twice the specified dBm levels from the projector, which is fine, as the QL5 can take this at its XLR inputs.