MOTM-485 GX-1 VCF
$339 assembled & tested
The MOTM-485 is a recreation of the Yamaha GX-1 LP/HP filter.
The GX-1 was a massive organ/synth hybrid, costing over $60,000 in the late ‘70s.
The best example is the ELP song ‘Pirates’, but was also used by Stevie Wonder and Led Zepplin..
The actual GX-1 used a pair of these filters to form a bandpass response (the same method used in the MS-20 and the CS-80).
There is a HP filter set to "half tracking" followed by a LP at "full" tracking.
However, you can still use a single MOTM-485 as yet another distinct tone in your setup.
Faithfully captures the unique GX-1 timbre
2 audio inputs
Voltage-controlled resonance
Switchable HP/LP response
Switchable half/full tracking of the 1V/Oct input
Fully temperature compensated using TEMPCO resistor and matched pairs
Not a ‘clean’ filter: has higher distortion than other MOTM filters
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