Category Archive
for: ‘Sphere’

Sphere 900 EQ

The updated version of the Electrodyne 712. Note: The grey lever has frequency selection buttons for 5k, 6,4k, and 8k. These are quite rare and prized for their unique sound. Discrete class A/B opams, L-C filter sections.      

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Sphere M1200

Discrete, class A/B preamp used in many consoles designed by John Hall. The incandescent lamps kept a failed amp from shorting out the console and provided a very tube-like distortion.

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