Behringer AutoQuad XR2400 — Studio Hardware Inventory

Device Photos

Front

Back

Basic data

Name

Behringer AutoQuad XR2400

Physical parameters

Dimensions (mm)

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Dimensions (inch)

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Weight

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Format

—

Material

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Manufacturing (Period)

—

Manufacturer

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Power

Voltage

100-240 V AC

Current (typical)

300 mA (AC)

Current (max)

500 mA

Polarity

IEC C14 connector

Connector

IEC C14

AC/DC

Internal/External

External

Note

external AC adapter (1.5 A @ 18V), rack mount power supply via standard IEC connector

Warning: Check the polarity of the source before connecting! Improper power supply will damage the device.

Firmware and serial number

Serial number

Not stated

FW version (current)

Hardware

Check date

2026-03-03

Previous version

N/A

Bootloader

N/A

Update Link

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Backup File

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Quick Summary

Reference-class, interactive, frequency-selective 4-channel expander/gate in rack. Ideal for dynamic control and gating of multi-channel signals in a mastering/live setup.

Product Description

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Features and functions

4-channel expansion/gate with frequency selectivity
Reference-class sound — < 0.05% THD — professional quality
Interactive control — manual controls for on-the-spot tuning
Threshold potentiometer — 0-60 dB relatively adjustable
Ratio switch — 1:1, 2:1, 4:1, ∞:1 options
Attack/Release fader — smooth or dynamic control
Side-chain input — external control signal — flexibility
STEREO LINK switch — channel pairing for stereo linking
LED indicators per channel — visual feedback gating
4× XLR balanced input/output — professional I/O
Impedance: 100 kΩ in, 50 Ω out — quality matching
Frequency range 20 Hz — 20 kHz ±0.5 dB
19-inch rack unit — standard studio installation
External AC power supply — 1.5A @ 18V
Ideal for drums, room noise, multitrack mastering

Primary I/O (quick orientation)

Domain	Inputs	Outputs	Note
Audio (symmetrical)	4× XLR (M), line level	4× XLR (F), line level	Impedance: 100 kΩ input, 50 Ω output; each output can be expanded (gate) or compressed
Control	4× side-chain inputs (for external signal control); stereo link mode option	LED gating indicators per channel	Manual control: 4× threshold, ratio, attack, release faders

Controls

FRONT / TOP (user control)

4× Channel control (per channel):
- THRESHOLD potentiometer (0-60 dB relative)
- RATIO switch (1:1, 2:1, 4:1, ∞:1)
- ATTACK / RELEASE fader
- Side-chain SELECT switch (Internal/External)
STEREO LINK switch (channel pairing)
POWER switch
LED indicators: signal control (4x per channel)

Service / hidden elements

(None)

Connectors and connections

Connector matrix

Interfaces	IN	OUT	Spec / note
Audio (symmetrical)	4× XLR (M), line level	4× XLR (F), line level	Impedance: 100 kΩ input, 50 Ω output; each output can be expanded (gate) or compressed
Control	4× side-chain inputs (for external signal control); stereo link mode option	LED gating indicators per channel	Manual control: 4× threshold, ratio, attack, release faders

Latency and jitter

Clock sources

N/A (analog mixer)

Clock IN/OUT format

N/A

Typical latency

< 1 ms (analog)

Jitter spec

N/A

Buffer support

N/A

Impedance and signal levels

Line Level (dBu)

0 dBu (line level std)

Mic In level

—

Output Impedance

50 Ω

Input Impedance

100 kΩ

THD

< 0.05%

Frequency Range

20 Hz — 20 kHz (±0.5 dB)

Other Specifications (from metadata.specifications)

Key	Value
No other specifications

Additional technical details

Key	Value
No additional technical details

Typical routing

Drum gating: Control of unwanted grandfather / room noise in drums
• Connect four channels of drums (kick, snare, tom 1, tom 2) to the XR2400 inputs
• Set the THRESHOLD for each channel so that the gate opens only when hit
• Set the RATIO to ∞:1 for a full gate (or lower for fine compilation)
• Set ATTACK (in case of a weak start) and RELEASE (so that the signal returns smoothly)
• Connect the outputs back to the mixer or audio interface
Mastering gate control: Elimination of noise in the quiet passages of the mastered track
• Input: left/right channel of the mastered mix
• Link stereo channels using STEREO LINK for unified control
• Set a very high THRESHOLD (almost silent)
• ATTACK: very short (< 1 ms), RELEASE: long (200-500 ms)
• Outputs to master bus / analogue monitoring chain
De-esser emulation: Suppression of sibilance in talking/singing (using sidechain)
• Input: stereo vocal signal (L/R)
• Sidechain INPUT: signal with EQ (high-pass on sibilants~6-10 kHz; high level)
• Set THRESHOLD so that it gates only sibilants
• RATIO: 2:1 (gentle) or higher for greater reduction
• Output: de-sessed vocal

Connection instructions: The examples below show typical signal flows in practice. For specific details (jitter, buffering), see section above.

SW / drivers

Component	Windows	macOS	Linux	Note
No specific driver data; use the Documentation/Links section.

Custom firmware details

Author

—

FW family

—

Custom FW targets

No explicit custom FW targets in metadata.

Custom CC mapping

CC	Meaning
No custom CC mapping.

Custom FW global settings

Settings	Meaning
No custom global settings.

Custom FW extended menu

Item	Detail
No extended menu details.

Documentation and manuals

Manufacturer / Links

Service log

Date	Event	Who	Note
2026-03-03	Connection of documentation (manual)	Data Entry	Added local link to the PDF manual from the folder MANUALS/
2026-03-03	Connection of photos device	Data Entry	Added hw_pic links to FRONT and REAR photos (PNG, stored in HW_PIC/behringer-autoquad-xr2400/)
2026-03-03	Initial inventory	Studio tech	Added to inventory

Presets / User banks

Storage type

—

Number of banks

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Current bank

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Backup File

—

Export format

—

Note

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Notes / service / modifications

Legacy product. Reference-class 4-channel expander/gate with interactive design and frequency selectivity. Excellent for mastering, live monitoring, drum processing and de-essring. Check the condition of the XLR connectors and the functionality of all potentiometers.