dbx 904 noise gate module — the classic single-channel gate for the dbx 900-series modular rack. A studio and live-sound staple for decades, still the go-to for tightening up drums and taming noisy live inputs.

What it does: precision noise gating/expansion using dbx's OverEasy soft-knee gating. Front-panel controls for threshold, attack, release, and gate attenuation; LED gain-reduction metering (2–60 dB); IN, PLM and KEY switches with an external key input for triggering the gate from another source.

CONDITION
Functional: Tested and working.
Cosmetic: Very good — light wear consistent with normal rack use.

INCLUDES: dbx 904 module only.
NOT INCLUDED: 900-series rack chassis, power cord, manual.

TERMS

  • Payment due within 48 hours of purchase.
  • Ships within 1–2 business days. Buyer-paid calculated shipping.
  • 30-day returns; buyer pays return shipping. Item must come back in the condition it was sent.
  • Contact us before opening a return — most issues get resolved fast.

Reverb Buyer Protection

Reverb has your back if your item is lost, damaged, or doesn't match its description. Simply report any issues within 7 days and we'll help you get a full refund.Learn more about Reverb Buyer Protection.

Listed6 days ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • 904 900 Series Noise Gate Module
Categories
Format
  • Modular
Electronics
  • Analog
  • Solid State
Number of Analog Outputs
  • 1
Number of Analog Inputs
  • 1
Number of Channels
  • 1

Product safety information may be available here.

audio-video pros

irvine, CA, United States
Joined Reverb:2018

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Promoted similar listings













Product reviews

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Oops, looks like you forgot something. Please check the fields highlighted in red.