City Council Room Sound System with Premium Ceiling Speaker Array and Bosch Digital Discussion System with Built‑In MP3 USB Recording

Inside the Design

This professional city council room sound system delivers exceptional vocal clarity and seamless meeting control for government chambers, council rooms, and public hearing spaces. Featuring our SD5 SuperDispersion® 360° ceiling speaker array paired with the powerful RMA240BT 240W mixer amplifier, this system provides full-room coverage with outstanding speech intelligibility. The Bosch CCS 1000 D discussion system enhances structured communication with dedicated chairman and delegate microphones, while the MIPRO digital wireless system supports keynote speakers and public participation. An assisted listening system is also included to ensure accessibility for all attendees. Built for reliability, versatility, and superior audio performance, this upgraded system is ideal for any municipal or civic meeting environment.

Sound System Features:

• SD5 SuperDispersion® speaker delivers 360° x 180° of even, intelligible room coverage
• High-powered 240W RMA240BT amplifier supports 4-16Ω and 70V distributed audio
• Integrated Bluetooth, USB, TF, and FM playback for flexible media options
• Bosch CCS 1000 D discussion system provides structured, efficient meeting control
• Reliable 2.4 GHz wireless handheld microphone for presenters and public speaking
• Assisted listening system enhances accessibility for hearing-impaired attendees
• Emergency input on the amplifier allows priority override for safety notifications

About the System Components

Pure Resonance Audio SD5 SuperDispersion® Speaker Array

The SD5 SuperDispersion® drop tile ceiling speaker provides 360° x 180° of wide and consistent audio coverage perfectly suited for council chambers and meeting rooms. Featuring three 5.25" mid-bass drivers and a powerful 3" tweeter, the SD5 delivers superior vocal intelligibility and reduces frequency cancellation for smooth, natural sound. Its lightweight drop-tile design installs in minutes, fitting any standard 2'x2' or 2'x4' ceiling grid, with selectable 8Ω and 70V operation for maximum system compatibility.

Pure Resonance Audio RMA240BT Mixer Amplifier

The RMA240BT is a high-performance 240W commercial mixer amplifier featuring Bluetooth streaming, USB/TF media playback, FM radio, and multiple microphone and auxiliary inputs. Designed for reliability in continuous-use government environments, it supports both low-impedance and 70V speaker systems. The built-in emergency input automatically overrides other audio sources for safety paging, and the front-panel tone controls allow precise adjustment for speech applications. Its 1RU design and included IR remote enable flexible, user-friendly operation.

Bosch CCSD-CURD CCS 1000 D Control Unit Recorder

The Bosch CCSD-CURD serves as the central hub for the CCS 1000 D discussion system. It manages audio routing, microphone control, recording, and meeting configuration for city council and public hearing applications. Built-in digital acoustic feedback suppression ensures clean, uninterrupted speech, while integrated recording capabilities allow easy documentation of council sessions. This unit provides intuitive control for the chairperson or AV technician, supporting efficient and structured meeting flow.

Bosch CCSD-DL CCS 1000 D Discussion Devices

Included in the system are eleven Bosch CCSD-DL delegate units equipped with long gooseneck microphones for superior voice pickup. Each device provides a push-to-talk interface, built-in loudspeaker, headphone output, and clear status indicators. Designed for clarity and ease of use, these delegate microphones ensure orderly participation during council meetings, hearings, and public commentary sessions. Their compact, modern design integrates cleanly into council desks and tables.

MIPRO ACT-2401/ACT-24HC Wireless System

The MIPRO ACT-2401 single-channel 2.4 GHz digital wireless system includes the ACT-24HC handheld microphone, offering reliable interference-free operation ideal for presenters, public speakers, or pass-around audience use. Its rechargeable design, low latency, and high-fidelity audio make it a dependable choice for live speech in official government settings. Automatic synchronization and robust digital diversity ensure consistent performance.

Listen Tech LS-53-072 iDSP Assisted Listening System

The Listen Tech LS-53-072 system enhances accessibility by providing clear audio directly to hearing-impaired attendees. With advanced iDSP receivers, universal ear speakers, and a compact transmitter, this system ensures compliance with ADA/IBC accessibility standards. Its high-clarity audio and intuitive controls make it easy for visitors to use during council meetings and public hearings.

System & Component Videos

Pure Resonance Audio SD5 SuperDispersion® 70V Omnidirectional Drop Tile Ceiling Speaker Arrays

• Omnidirectional coverage pattern provides 360° x 180° of consistent frequency response
• Powerful proprietary tweeter design with a lower crossover point improves vocal performance
• Wave-guided housing directs sound where it needs to go
• Ported enclosure is acoustically optimized and tuned with bass-reflex for turbulence reduction
• Low-profile metal back-box comes with built-in safety suspension points
• Thumbwheel selectable 8-ohm nominal and 70-volt inputs are compatible with any commercial or stereo amplifier
• Takes just minutes to install, simply remove one ceiling tile and drop the SD5 into any standard drop-ceiling grid
• Safety carabiner kit includes braided steel cables and infinitely adjustable SpeedClamp™ fasteners for secure and fast easy-install

Pure Resonance Audio RMA240BT 5-Channel 240W Commercial Rack Mount Mixer Amplifier with Bluetooth

• High-efficiency, lightweight 1RU chassis engineered for commercial reliability
• Built-in MP3 media player with USB, TF, Bluetooth, and FM tuner functionality
• Features 1 emergency channel input, 2 AUX inputs, and 4 MIC inputs for versatile system integration
• Bass and treble tone controls for precise audio customization
• Level, overload, and protection indicators provide short-circuit, overload, and overheating protection
• Advanced high-performance amplifier circuitry ensures clean, stable output
• Compatible with 4–16Ω and 70V speaker systems
• Delivers a powerful 240W rated output suitable for larger distributed audio applications
• Forced-air cooling system adjusts fan speed based on temperature for long-duration operation
• Includes IR remote control for convenient system management

Bosch CCSD-CURD CCS 1000 D Control Unit Recorder DAFS

• Plug-and-play functionality for quick and easy connection of up to 80 Discussion Devices
• Intuitive web browser control for advanced configuration and control
• Built‑in MP3 recorder with internal memory and USB recording
• Built‑in Digital Acoustic Feedback Suppression (DAFS) for ensuring superior speech intelligibility
• Native support for automatic HD camera control

Bosch CCSD-DL CCS 1000 D Discussion Device with Long Microphone

• Unique patent pending possible-to-speak indicator
• Plug and play functionality for ensuring fast installation and reconfiguration times
• Compact, attractive ergonomic design
• Easily configured as a participant device or chairperson’s device
• Immunity to mobile phone interference

MIPRO ACT-2401/ACT-24HC Single-Channel 2.4 GHz Handheld System

• Receiver:
  • 2.4 GHz ISM band stable digital FSK modulation circuitry. All frequencies are located within this band
  • With the FHSS frequency-hopping technique, each channel has 4 preset hopping frequencies
  • By using an adaptive tracking algorithm, the 2400-Series can skip the Wi-Fi frequency in use and effectively avoid interference from 2.4 GHz communication products
  • The hopping frequencies skip most Wi-Fi frequencies
  • With dual tuner, true diversity receiving, receiving distance is up to 100 meters (330 ft) with no signal drop-out
  • PCB is enclosed in a sturdy case
  • The antennas are fixed at the left/right side of the front panel
  • The transmitter has a high-efficiency circuitry design. The included single rechargeable lithium battery can be easily removed or interchanged for charging. Charging station (MP-80) is sold separately.
  • Ideal for entry-level consumers
• Transmitter:
  • Bright LEDs for battery status
  • Patented design of the integrated grille and battery housing makes it easy to unscrew the grille to open the battery compartment to exchange the lithium battery or simply charge the transmitter in the charger
  • The unique multi-layered metal grille protects the capsule against impact, rolling, and pop noise and ensures sound clarity
  • Proprietary capsule suspension design eliminates vibrations and touch noises for a true natural sound reproduction
  • Interchangeable capsule module with premium condenser or dynamic options for easy and fast changeovers
  • World's first ACT™ function provides precise and rapid frequency sync to the receiver
  • Transmitter has high-efficiency circuitry design. The included single rechargeable lithium battery can be easily removed or interchanged for charging. Charging station (MP-80) is not included and must be purchased separately.

Listen Tech LS-53-072 iDSP Prime Level I Stationary RF System

• Advanced DSP SQ noise reduction technology delivers 20 dB less noise and hiss than any other listening device
• Integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users
• Smallest device of its kind makes it easier to wear and for venues to dispense, store, and maintain
• Limited Lifetime Warranty with hassle-free support
• Advanced green battery technology dramatically reduces costs of ownership and hassles while reducing the number of batteries in the landfill
• Ensures public venues deliver an exceptional listening experience while meeting new legislative requirements for assistive listening

• (1) Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Array
• (1) Pure Resonance Audio RMA240BT 5-Channel 240W Bluetooth Rack Mount Mixer Amplifier
• (1) Bosch CCSD-CURD CCS 1000 D Control Unit Recorder DAFS
• (11) Bosch CCSD-DL CCS 1000 D Discussion Devices with Long Microphones
• (1) MIPRO ACT-2401/ACT-24HC Single-Channel 2.4 GHz Handheld System
• (1) Listen Tech LS-53-072 iDSP Prime Level I Stationary RF System
• (1) CBI CB2-2RR-6 Dual RCA to Dual RCA Cable - 6ft
• (1) Pure Resonance Audio XLR-3 XLR to XLR Microphone Cable - 3ft
• (100') West Penn 225 16/2 Non-Plenum Speaker Wire - Gray