Harman Professional Lecture Theatre Audio System - Gold Bundle
Audio System Bundle for Lecture Theatre
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The Harman Professional Lecture Theatre Audio System Gold Bundle is a premium, high-performance audio solution designed for lecture theatres, larger classrooms, auditoriums, and multipurpose presentation spaces. Combining powerful JBL column arrays with low-frequency extensions, distributed JBL Control pendant speakers, a high-output Crown amplifier, advanced digital signal processing, and flexible BSS wall control, this system delivers outstanding speech intelligibility, extended low-frequency response, and uniform coverage across tiered seating and open areas.
Key Features
- Complete Bundle for Larger Lecture Spaces: Includes main column arrays with LF extensions, distributed pendant speakers, high-power amplification, DSP, and an 8-button wall controller for a fully integrated lecture theatre audio system.
- High-Intelligibility Coverage: JBL CBT 70J-1 columns with CBT 70JE-1 extensions provide controlled vertical coverage and wide horizontal dispersion, ensuring clear speech to front, middle, and rear seats.
- Fill & Distributed Audio: Six JBL Control 65P/T pendant loudspeakers supplement the main system for aisles, under-balcony, or side seating, maintaining consistent tonal balance throughout the room.
- High-Power, Multi-Channel Amplification: Crown CDi 4|1200 amplifier delivers robust, efficient power across multiple zones or loudspeaker groups with onboard DSP and JBL tunings.
- Advanced System Processing: BSS BLU-100 provides 12 inputs and 8 outputs of configurable signal processing with a 48-channel digital audio bus for flexible routing and future expansion.
- Flexible Instructor / Technician Control: BSS EC-8BV wall controller offers 8 multi-colour buttons, dual LCDs, and a push/rotary encoder for intuitive zone, source, and level control.
- Scalable & Future-Ready: Ideal for medium-to-large lecture theatres today, with sufficient DSP, control, and bus capacity to integrate into wider campus AV networks.
Specifications
A modular column loudspeaker stack combining the JBL CBT 70J-1 with the CBT 70JE-1 low-frequency extension. This configuration delivers enhanced low-end response, controlled vertical coverage, and wide horizontal dispersion for highly intelligible speech and program audio in tiered lecture theatres and auditoriums.
| Drivers (70J-1) | 4 × 5" LF drivers + 16 × 1" HF drivers in a constant beamwidth array |
| Drivers (70JE-1) | 4 × 5" LF extension drivers for increased low-frequency output and throw |
| Frequency Range | Extends low-frequency response down to approximately 45 Hz when combined (–10 dB), with smooth response through the voice band |
| Coverage | Horizontal 150°; selectable vertical pattern settings for narrow or broad coverage to match room geometry |
| Power Handling | High continuous and program power handling suitable for larger lecture spaces and multi-row seating |
| Maximum SPL | Capable of high peak output for clear speech and program audio without distortion |
| Voicing Modes | Selectable Music / Speech voicing and pattern control switches for application-specific tuning |
| Enclosure | Durable, slim-profile cabinets designed for wall mounting in auditoriums and lecture theatres |
| Typical Mounting | Mounted as left/right columns at the front of the room, with 70JE-1 modules attached below the 70J-1 arrays |
| Net Weight | 20.4 kg (45 lb) |
A compact full-range pendant loudspeaker using JBL’s Radiation Boundary Integrator® technology to provide smooth, 120° conical coverage—ideal for aisles, under-balcony zones, or supplementary seating areas in open-ceiling lecture spaces.
| System Type | Compact full-range, two-way pendant loudspeaker with RBI® constant-directivity waveguide |
| Drivers | 130 mm (5.25") polypropylene-coated LF driver + 20 mm (0.75") textile soft-dome HF driver, coaxially mounted |
| Frequency Range (–10 dB) | 55 Hz – 20 kHz |
| Frequency Response (±3 dB) | 78 Hz – 18 kHz |
| Coverage | 120° nominal conical coverage for wide, even dispersion |
| Power Capacity | 75 W continuous pink noise / 150 W continuous program |
| Transformer Taps | 70V: 60 W, 30 W, 15 W, 7.5 W; 100V: 60 W, 30 W, 15 W |
| Nominal Impedance | 8 Ω (bypass) |
| Maximum SPL | 105 dB continuous, 111 dB peak @ 1 m |
| Enclosure & Grille | High-impact polystyrene enclosure; zinc-plated steel grille with powder-coat finish and foam backing |
| Environmental | Exceeds Mil Spec 810 for humidity, salt spray, temperature, and UV; IP44 splashproof capability |
| Dimensions | 234 mm diameter × 259 mm height (279 mm to top of bracket) |
| Net Weight | 3.7 kg (8 lb) each |
| Suspension | Includes two 4.5 m (15 ft) high-tensile galvanized steel cable systems with adjustable Gripple® fasteners |
A 4-channel, high-power DriveCore™ installation amplifier with onboard DSP and 70V/100V capability, ideal for driving main arrays and distributed speakers within a single lecture theatre system.
| Channels | 4 |
| Output Power | Up to 1200 W per channel at low-impedance or 70V/100V (model-dependent; supports constant-voltage operation for distributed systems) |
| Amplifier Topology | Class D with DriveCore™ technology for high efficiency and reduced heat |
| DSP Functions | Integrated DSP including EQ, crossover, filters, delay, and limiting with JBL loudspeaker presets |
| Frequency Response | 20 Hz – 20 kHz (±0.5 dB) |
| Signal-to-Noise Ratio | >100 dB (typical) |
| Control & Monitoring | HiQnet Audio Architect integration via Ethernet/USB for configuration and supervision |
| Connectors | Balanced Euroblock inputs; Euroblock or binding post loudspeaker outputs (model-dependent) |
| Cooling | Variable-speed forced-air cooling for reliable operation in equipment racks |
| Form Factor | 2U rack-mount chassis suitable for standard 19" racks |
| Net Weight | 9.12 kg (20.1 lbs) |
A 12 × 8 networked signal processor with open-architecture design, providing extensive DSP, GPIO, and a 48-channel fault-tolerant digital audio bus for integration into larger Soundweb London systems.
| Analog Inputs | 12 electronically balanced mic/line inputs with software-selectable gain and 48 V phantom power per channel |
| Analog Outputs | 8 electronically balanced line outputs |
| Digital Audio Bus | 48-channel, low-latency, fault-tolerant BLU link on Cat 5e; interoperable within the wider 256-channel Soundweb London bus |
| Signal Processing | Configurable architecture with EQ, dynamics, matrixing, delays, filters, and logic objects via HiQnet London Architect |
| Control I/O | 12 control inputs + 6 logic outputs for GPIO integration |
| Front Panel Indicators | Per input: Signal Present, Clip, 48 V; global status LEDs for communication, errors, and power |
| Network | Ethernet port for configuration, control, and monitoring from HiQnet London Architect |
| Dimensions (H × W × D) | 1U × 19" × 9.0" (approx. 45 mm × 483 mm × 229 mm) |
| Power | 100–240 V AC, 50/60 Hz; <55 VA power consumption |
| Installation | Standard 1U rack-mount chassis for equipment racks |
| Net Weight | 2.9 kg (6.4 lb) |
An Ethernet wall controller with 8 programmable-multicolour buttons, dual LCDs, and a push/rotary encoder, providing flexible zone, source, and level control for lecture theatre operation.
| Controls | 1 programmable push/rotary encoder, 1 multicolour encoder ring, 8 programmable multicolour buttons, 2 multicolour 64 × 128 LCDs |
| Power | PoE (Power over Ethernet) via a single Cat 5e cable |
| Modes of Operation | Multiple modes including 1-zone, 4-zone, 8-zone, 4×4, and hybrid configurations for flexible control layouts |
| Security | Remote lock/unlock and local PIN-based unlock for restricted access |
| Sleep Function | Automatic LED dim/off after a period of inactivity to reduce distraction in low-light rooms |
| Network Cable Length | Up to 100 m (328 ft) maximum cable run |
| Form Factor | Dual-gang EU version; available in black or white finish |
| Colour Options | Black or White |
| Net Weight | 0.7 kg (1.5 lb) |
Bundle Includes
- Main Column Loudspeakers: 2 × JBL CBT 70J-1 + 70JE-1 systems
- Distributed / Fill Loudspeakers: 6 × JBL Control 65P/T pendant loudspeakers
- Amplifier: 1 × Crown CDi 4|1200
- DSP Processor: 1 × BSS Soundweb London BLU-100
- Wall Controller: 1 × BSS EC-8BV Ethernet controller
Application Examples
| Lecture Theatres | Deliver highly intelligible speech and consistent coverage for large audiences, even in tiered seating layouts. |
| Large Classrooms | Support teaching, presentations, and hybrid learning with clear voice reinforcement and even room coverage. |
| Auditoriums & Halls | Handle seminars, ceremonies, and AV events with powerful, controlled sound. |
| Conference & Training Rooms | Provide robust audio for corporate training, lectures, and multi-speaker sessions. |
| Multipurpose Presentation Spaces | Adaptable for voice-focused use or mixed speech-and-program audio in flexible venues. |
The Harman Professional Lecture Theatre Audio System Gold Bundle builds on the capabilities of the Silver configuration with extended low-frequency performance, additional distributed loudspeakers, higher-output amplification, and more advanced control and processing. With premium components from JBL, Crown, and BSS, it delivers a powerful, scalable, and easy-to-operate audio solution for demanding academic and presentation environments.