Mixer Omnitronic ZD-250 5-channel, 19-inch rack

The Omnitronic ZD-250 5-channel, 19-inch rack mixer is a compact mixing unit that fits standard rack systems and provides five independent input channels for combining multiple audio sources. Each channel includes basic level and tone controls accessible from the front panel, allowing quick adjustments during setup or live use. The unit is intended for compact PA systems, small recording setups, rehearsal rooms and fixed or temporary event installations where space-saving, rack-mounted mixing is required.

Advantages

The mixer offers a space-efficient 19-inch rack format with straightforward channel controls for quick operation. Front-panel access to level and tone makes on-the-fly adjustments easy without opening a rack. The five-channel layout enables mixing of several sources simultaneously while maintaining a compact footprint suitable for mobile and installed systems.

Suitable for

• Small public address systems in venues and meeting rooms
• Home or project studio recording and monitoring
• Rehearsal spaces and band practice setups
• Event installations in compact rack systems

Key specifications

• Form factor: 19-inch rack-mountable unit, compact depth
• Channels: 5 input channels with individual level control
• Tone control: Basic tone adjustment per channel (bass/treble or EQ trim as implemented)
• Front panel: Accessible controls for level and tone on each channel
• Applications: Designed for live mixing, PA and small recording tasks

How to use

Install the mixer into a standard 19-inch rack using appropriate rack screws and support if needed. Connect input sources to the channel inputs, route the main outputs to the amplifier, powered speakers or recording device, and set channel levels using the front-panel controls. Use the tone controls to shape each input’s sound to fit the overall mix. Perform a soundcheck to balance levels and confirm signal routing before live use.

Usage recommendations

For reliable operation, ensure adequate ventilation in the rack and avoid stacking heat-generating equipment directly above the mixer. Use balanced connections where possible to reduce noise, and set gain and tone controls conservatively during initial setup, then fine-tune while monitoring the full system.