April 23, 2024
Fairchild 664 A Passive EQ Equalizer Langevin 251 Altec 9061 Pultec Inductor
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1960's Fairchild 664A Passive Inductor based EQ/Equalizer - the Fairchild equivalent of the Langevin 251 / Altec 9061 Program Equalizer modules.Needs to be wired to XLR I/O but guaranteed to be working. All switches turn freely but may need to be cleaned.664B faceplate but this is a 664A (the passive version). 17dB of insertion loss. 600 ohm input/output impedance. Sound quality is equal to a Langevin / Altec program equalizer module for adding a nice HF or LF boost/cut to digital tracks.
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