DBX 900 Series + 9x 904 Slots (Gate)

DBX 900 Series + 9x 904 Slots (Gate) in used but working condition.

https://cuesale.com/product/dbx-900-series-9x-903-slots-gate/

The 904 is an expander gate using dbx’s OverEasy® action for a smooth onset of gating. Attenuation limit, attack and release rates and threshold are all adjustable.
This popular gate also features Programmed Latch Mode which mutes a channel until an above threshold signal is present. It then latches open until reset.
The 904 is a very fast voltage controlled below threshold downward expander. It senses the level of an input or keying signal and determines whether the level is below threshold. If it is, the signal gets attenuated; if not it passes at unity (0 dB) gain. The amount of signal attenuation is a function of its own level and the 904’s Attenuation, Limit, Ratio, and Threshold settings.
Features:

Two modules can be strapped together for stereo operation
Key input for frequency-tailored gating or gating of one instrument by another
adjustable 0 to 60 dB attenuation
Programmed latch mode
Variable attack and release times
Hardwire bypass switch

Specifications:

Frequency Response: 20 Hz – 20 kHz, ±0.5 dB
Input: Balanced: 25 kΩ
Unbalanced: 18.5 kΩ
Maximum Input Level: +24 dBu
Output: Unbalanced: 22 Ω
Maximum Output Level: +24 dBu into 600 Ω
THD: <0.02% @1 kHz
Dynamic Range: 106 dB
Threshold Range: -40 – +10 dBu, Variable
Controls: KEY Mode Switch, PLM Switch,
Gate In Switch, Attenuation Limit
Knob, Attack/Release Knob,
Threshold Knob, Ratio Knob
Indicators: Input: Red, PLM: Green, Key:
Red
Metering: 10 segment LED bargraph indicating Gain Reduction