Any luck using passive crossover and single.. (Oris Horns)

by Bert @, Tuesday, July 17, 2007, 19:39 (6099 days ago) @ TubeDriver

Hi TubeDriver,

Has anyone experimented with Oris 200 Horns (AER MD-1)/Compact Reference
Bass System BD-15) using a passive crossover and a single amplifier?

I did...

Could the Oris system be made to work in this fashion (resister lowering
the horn output with passive crossover around 250Hz) driven by single amp
(300B or 2A3)?

Yes, it can be done but it won't be an easy task if you are not able to measure things and know what you are doing. Simplicity is using a separate amp for the bass though and probably cheaper than using quality components for the needed filter.

You'll need relative high values (low crossover frequency), an impedance correction for only the bass but probably for the AER's too..

Of course you could design a simple 12dB filter for just the bass and an attenuator for the AER's to have something done but I am not sure if your tube amps would like the strong impedance variations...

Bert

--
BD-Design - Only the Best!

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