Why would a larger facility need an eight-input mixer instead of a four-input model?

Eight inputs accommodate more audio sources simultaneously—paging, background music, emergency alerts, in-building radio, external feeds—enabling complex routing without external patch panels.

How do two independent outputs improve system flexibility?

Dual outputs enable stereo music distribution or separate zone control (e.g., lobby vs. hallways), providing independent audio routing without additional mixing equipment.

What does DIP-switch configuration mean for a commercial installer?

DIP switches allow on-site customization of mixer behavior without external software, enabling tailored ducking sensitivity, input levels, and output routing for specific facility needs.

Is the CSM 28 suitable for large schools or hospital campuses?

Yes, eight inputs and dual outputs are ideal for multi-zone institutional PA systems requiring complex audio routing across departments, departments, and emergency alert integration.

How do independent tone controls on each output improve audio quality?

Per-output EQ allows different frequency balancing for each zone (e.g., lobby ambiance vs. clinical clarity in patient areas), optimizing audio without external equalizers.

Can this mixer handle simultaneous paging, background music, and emergency alerts?

Yes, the eight inputs allow independent routing of microphone paging, background music, emergency sirens, and intercom feeds into coordinated or independent outputs.

What lead times should we expect for a commercial mixer order to a UAE facility?

Lead times depend on inventory and order complexity; contact Procure.ae to confirm availability and delivery schedule for your institutional or commercial project.

Does Procure.ae provide commissioning support for multi-input mixer installations?

Procure.ae can advise on audio routing and DIP switch configuration for your facility; discuss your system requirements when requesting technical support.

What are the input impedance and maximum level specifications?

For details on input sensitivity, maximum SPL handling, and impedance specs, contact Procure.ae to confirm compatibility with your microphones and music sources.

Does each output include independent level and tone controls?

Yes, each of the two outputs has independent controls; contact Procure.ae to confirm exact tone shaping capabilities and level ranges.

What DIP switch configurations are available for this mixer?

For a complete list of configurable parameters (ducking, input levels, output routing modes, etc.), contact Procure.ae to discuss your specific facility needs.

JBL CSM 28 Eight-Input Two-Output Commercial Mixer

The JBL CSM 28 is a professional eight-input, two-output audio mixer built for larger commercial installations requiring multiple independent audio source routing and mixing. Its DIP-switch configurable design and independent tone controls on each output channel enable complex audio management for schools, hospitals, corporate campuses, and hospitality facilities.

Overview

The JBL CSM 28 is an expanded-format commercial audio mixer delivering eight inputs and two independent mixed outputs with individual tone shaping on each channel. Designed for facilities requiring sophisticated source selection and independent output control, it supports complex PA, paging, and background music configurations in institutional and commercial environments.

Key Features

Eight input channels with individual level controls
Two independent mixed outputs with separate master volume controls
Independent bass and treble controls for each output channel
27V phantom power switchable via rear panel DIP switch
DIP-switch configurable input-to-output routing for flexible signal flow
Illuminated control knobs for easy operation in low-light environments
Euroblock mic/line input and output connectors
Unbalanced RCA inputs for consumer devices
Fanless 1U form factor for silent, rack-mounted installation
Priority muting for emergency announcement override
VOX ducking functionality on selected channels
Compatible with JBL CSR-V wall-mounted remote volume controls

Specifications

Inputs: 8 channels (Euroblock mic/line + RCA unbalanced)
Outputs: 2 independent channels (Euroblock balanced)
Frequency Response: 20 to 20,000 Hz ±1 dB
Connectivity: Euroblock, RCA, Cat5 Ethernet (control)
Phantom Power: 27V (switchable)
Dimensions: 437 × 303.4 × 43.3 mm
Weight: 3.4 kg
Color: Black
Country of Origin: United States

Why buy from Procure.ae

Procure.ae supplies advanced PA mixing and audio infrastructure to educational institutions, healthcare facilities, and corporate organizations across the UAE and GCC. Request a quote for large-scale deployments, custom configuration, and comprehensive technical support.

FAQ

What is DIP-switch configurable routing?
DIP switches on the rear panel allow you to customise which input channels feed to which output channels without rewiring, enabling rapid reconfiguration for different operational modes.

Can I use both output channels independently?
Yes, each output channel has its own master volume control and tone settings, allowing independent signal routing for multi-zone or multi-purpose audio systems.

How many microphones can I connect simultaneously?
All eight input channels support both microphone-level and line-level sources, allowing you to connect up to eight active microphones plus consumer audio devices on the RCA inputs.