Bose ControlSpace ESP-4120

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The Bose ControlSpace ESP-4120 is an open-architecture DSP with 4×12 fixed analog audio, built-in 8-channel ESPLink output & a rear-panel digital expansion slot.

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Bose ControlSpace ESP-4120 – Doneo Malta

The Bose® ControlSpace® ESP-4120 engineered sound processor is an open-architecture DSP with 4×12 fixed analog audio, built-in 8-channel ESPLink output and a rear-panel digital expansion slot offering IP-based network audio and control card options. This model meets today’s strict requirements for high-quality signal processing and control in a cost-effective package. The ESP-4120 is designed for a wide variety of applications ranging from small self-contained projects to larger networked applications.


High-quality analog circuitry offers both mic and line-level I/O, operates with ultra-low noise and 115 dB dynamic range

Advanced digital signal processing supports audio at 48 kHz sample rate/24-bit, uses a floating-point open architecture DSP and operates at low latencies for sound system precision

Expansion card slot supports the use of accessory networking cards, allowing digital audio to be sent and/or received from other compatible products

Optional Dante™ media networking card allows single rack-space ESP products to closely integrate with Bose or other manufacturers’ products and systems

Bose® ControlSpace® Designer™ software enables a large set of signal processing modules, such as automatic mic mixing, multiband graphic and parametric EQs, Bose loudspeaker libraries, signal generators, routers, mixers, AGCs, duckers, gates, compressors, source selectors and delays

Front panel RJ-45 Ethernet connection enables localized configuration and monitoring, while enabling network passthrough when using a rear-panel network option card

Built-in Bose ESPLink output sends up to 8 channels of uncompressed digital audio to ESPLink-equipped Bose PowerMatch® amplifiers

A variety of control options – ControlSpace ESP products are compatible with the programmable Bose CC-64 and CC-16 controllers and three simplified zone volume interfaces, as well as potentiometers and switches built by other manufacturers

Integration with industry-standard control systems using a comprehensive serial protocol through onboard RS-232 and Ethernet ports


  • Auditoriums
  • Houses of worship
  • Resorts and hospitality venues
  • Retail stores
  • Schools and universities
  • Multi-purpose spaces


Technical Summary

Signal Processor
32-bit fixed/floating-point DSP + ARM, 456 MHz

Dynamic Range
> 115 dB, A-weighted 20 Hz – 20 kHz, analog through

Input Channels
4 analog (balanced, mic/line level), 16 digital (via optional card)

Output Channels
12 analog (balanced, line level), 8 ESPLink, 16 digital (via optional card)

PC Configuration Software
ControlSpace® Designer™ software

Additional information




Network DSP


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