Equalizers
Equalizers / Processors / Crossovers
Signal Control Hardware Archive
Archive of vintage Phoenix Gold equalizers, crossovers, and bass processors from the classic era. Model pages are source-backed and expanded as manual extraction progresses.
Manual-Verified Model Index
Confirmed from archived processor manual directories and legacy FAQ references.

Equalizer / Processor / Crossover
Early 1990s processor era (manual archive source)EQ-215
Two-channel 2/3-octave graphic equalizer with integrated 2-way electronic crossover support.

Equalizer / Processor / Crossover
1990s processor era (manual archive source)EQ-215X (EQ-215ix)
Expanded EQ-215 variant with dual 15-band equalization and extended crossover/system-routing options, commonly listed as EQ-215X or EQ215ix.

Equalizer / Processor / Crossover
1990s processor era (manual index verified)EQ-230
Legacy graphic equalizer model listed in the archived Phoenix Phorum EQ/DEQ processor manual directory.

Equalizer / Processor / Crossover
1990s processor era (manual index verified)EQ-232
Legacy equalizer/processor model documented in the archived Phoenix Phorum EQ/DEQ manual collection.
Equalizer / Processor / Crossover
1990s crossover era (manual index verified)AX-204A
Legacy AX-series active crossover model listed in the archived Phoenix Phorum crossovers manual directory.

Equalizer / Processor / Crossover
1990s crossover era (manual + archived FAQ context)AX-406A
Three-way active crossover platform using resistor-network programming for custom frequency targets.

Equalizer / Processor / Crossover
1990s companion component (archived FAQ source)FAS406A
Companion 3-way electronic crossover documented alongside Son of Frank Amp'n Stein (FAS-2400).

Equalizer / Processor / Crossover
1990s processor era (manual archive source)Bass Cube
Dedicated bass processing platform with selectable contour control, phase switching, and line-driver output capability.
Equalizer / Processor / Crossover
1990s accessory guidance (archived FAQ source)LPL44
Remote low-pass level control accessory for bass adjustment from the cabin when low-pass crossover mode is active.