inDESIGN ZM824 – 8x4 Zone Digital Mixer (1RU, RS232, 240VAC/24VDC)

The inDESIGN ZM824 is a high-performance 8 input, 4 output zone digital mixer designed for commercial and industrial audio installations. Compact in a 1RU form factor, it offers flexible connectivity, reliable operation, and advanced control features for paging, background music, and multi-zone sound systems.

Key Features

• 8 Input Channels – switchable balanced mic/line connectors plus dual RCA inputs

• 2 Priority Channels – ideal for paging and emergency announcements

• +24V Phantom Power – individually selectable per channel

• 4 Output Channels – full matrix routing between inputs and outputs

• Built-in Alarms – Chime, Alert, Bell, and Evacuation tones, triggerable via terminals

• RS232 Control – for integration with external control systems

• Power Options – operates on 240VAC mains or 24VDC backup power

• 1RU Rackmount Design – space-efficient and installation-friendly

Applications
The ZM824 is ideal for a wide range of professional audio environments, including:

• Shopping centres & retail

• Schools & universities

• Hotels & hospitality venues

• Offices & corporate facilities

• Factories & warehouses

• Houses of worship

• Transportation hubs

The inDESIGN ZM824 provides a reliable and flexible solution for multi-zone audio management, ensuring clear sound, robust operation, and easy integration with paging and emergency systems.

General

• Frequency Response: 20Hz – 20kHz (-3 dB)

• Gain: 50dB – +13.5dBu

• Distortion (THD+N): <0.1% @ 1kHz, 0dBu output

• Signal-to-Noise Ratio: 95dB

• Dynamic Range: 103.5dB

• Tone Signal Generation: Chime, Alert, Bell, Evacuation

• Trigger Control: Phoenix connector

• RS232 Control: DB9 PC connector

• Operating Temperature: 10°C – 40°C

• Mains Supply: AC 110 – 240V, 50/60Hz

• DC Power Supply: 24V / 2A DC

• Power Consumption: Max 48W

• Dimensions: 1RU – 44 x 483 x 135 mm (H x W x D)

• Weight: 2.9kg

Balanced Input Channels (1–8)

• Type: Electronically balanced

• Input Impedance: MIC 600Ω / Line 47kΩ

• Input Level: MIC -50dB / Line -10dB

• Phantom Power: +24V, switchable

• Connector: Phoenix balanced input

• Priority Control: Input 1 overrides all inputs; Input 2 overrides Inputs 3–8

Stereo Line Inputs (1–8)

• Type: RCA line input

• Input Impedance: 47kΩ

• Input Level: -10dBu

• Connector: 2 × RCA

• Channel Crosstalk: >80dB

Equalisation

• Bass: 100Hz, ±10dB

• Treble: 10kHz, ±10dB

Main Outputs (4)

• Type: Electronically balanced, switchable On/Off

• Output Impedance: 20kΩ

• Output Level: +13.5dBu (3.45V)

• Connector: Phoenix