Bose 834315-1110 ControlSpace EX-440C – Conferencing Processor for Small-Medium Rooms

Product Overview

The Bose ControlSpace EX-440C is a 1RU all-in-one conferencing signal processor designed for small to medium-size conference rooms, distance learning spaces, and courtrooms that require integrated AEC, VoIP, PSTN, and Dante audio networking in a compact rack-mount package. Providing 4 balanced mic/line analog inputs, 4 analog outputs, 8-channel acoustic echo cancellation (AEC), 16x16 Dante connectivity, a SIP 2.0-compliant VoIP line, a PSTN RJ-11 connection, a Micro-B USB soft codec port, and a 4-channel AmpLink digital output, the EX-440C consolidates the conferencing signal chain into a single device configurable with Bose ControlSpace Designer software. As the smaller-capacity counterpart to the EX-1280C, it is the right choice for rooms that need professional-grade conferencing infrastructure without the channel count requirements of a larger space.

Product Description

The EX-440C is purpose-built for the standard small-to-medium conference room: a space with a ceiling microphone array or boundary mics at the table, a pan-tilt-zoom camera, a room audio system, and connections to both IP telephony and traditional POTS lines. Its 8-channel AEC engine handles tail lengths up to 480 ms with 32 dB of noise reduction and 4 reference channels, covering room geometries where long reverberation times or parallel hard surfaces would defeat lesser echo cancellers. Each AEC channel includes adaptive noise cancellation, non-linear processing, and comfort noise generation to maintain call clarity across the full range of room conditions.

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The single VoIP line is SIP 2.0 compliant with an internal web interface, allowing an IT administrator to configure VoIP parameters — server address, credentials, dial plan — directly through a browser without accessing the ControlSpace Designer file. This cleanly separates AV system management from IT telephony provisioning, which matters in enterprise environments with strict IT governance policies. The PSTN RJ-11 port handles worldwide analog telephone connections, providing a reliable fallback for regions or facilities where analog lines are still required.

The 4-channel AmpLink output connects to AmpLink-equipped Bose Professional amplifiers — such as the PowerShare PS604D or PowerMatch PM8500N — over a single shielded Cat 5/6 cable, delivering uncompressed digital audio with less than 21 μs latency. The 16x16 Dante port supports connection to network-distributed microphones, amplifiers, and endpoints, with the AEC engine routable to Dante inputs as well as the onboard analog inputs. A GPIO input (1 channel) provides external control integration for fire alarm mute or room scheduling triggers. RS-232 (DTE) serial port supports third-party control systems and ControlSpace Designer-generated API protocols.

The front panel 256x64 OLED display and rotary encoder enable IP address setup and channel metering without a PC on-site. The same 32-bit floating-point DSP architecture used across the EX series — 456 MHz DSP and 600 MHz ARM Cortex-A8 CPU — provides 3.6 GIPS processing headroom for complex ControlSpace Designer signal flows including automatic mic mixing, parametric EQ, compression, gating, and routing logic.

Available from Creation Networks as SKU 834315-1110 (US-120V).

Key Features

• 8-Channel AEC — 480 ms tail length, 32 dB noise reduction, 4 references; adaptive noise cancellation, non-linear processing, and comfort noise per AEC channel for clear conferencing audio.
• AEC Routable to Dante Inputs — Apply AEC to microphones connected via the 16x16 Dante network, not just the onboard analog inputs, enabling distributed microphone deployments.
• Single VoIP Line (SIP 2.0) — IT-configurable via built-in web interface without requiring design file access; compatible with major SIP-based UC platforms.
• PSTN RJ-11 Connection — Worldwide POTS/analog telephone compatibility with international telecom compliance certifications.
• USB Soft Codec Port — Micro-B USB device with stereo in/out for PC soft codecs (Zoom, Teams, WebEx); HID support included.
• 16x16 Dante Networking — Primary/secondary Dante connectivity for distributed audio infrastructure; routable to AEC channels.
• 4-Channel AmpLink Output — Uncompressed, low-latency (<21 μs) digital audio to AmpLink-equipped Bose Professional amplifiers over shielded Cat 5/6.
• 4 Balanced Mic/Line Inputs — +48V phantom power per channel, software-selectable gain 0–+64 dB, max +24 dBu; -118 dB equivalent input noise at 44 dB gain.
• 4 Balanced Analog Outputs — Max +24 dBu, 200Ω impedance; 3.81 mm Euroblock connectors.
• Open-Architecture DSP — ControlSpace Designer drag-and-drop programming with automatic mic mixer, EQ, compressor, ducker, gate, source selector, delay, and logic modules.
• Front Panel OLED Display — 256x64 OLED with rotary encoder for IP configuration and channel metering without a PC.
• 1RU All-in-One Form Factor — Consolidates conferencing DSP, AEC, telephony, and network audio into a single 44 mm x 483 mm x 282 mm rack unit.

Typical Applications

• Conference room
• Huddle room (larger configurations)
• Boardroom
• Government space
• Commercial meeting space
• Training room
• Distance learning / courtroom

Technical Specifications

Frequently Asked Questions

How does the EX-440C differ from the EX-1280C?

The EX-440C provides 4 analog inputs, 4 analog outputs, 8-channel AEC, 1 VoIP line, 1 PSTN line, 16x16 Dante, and a 4-channel AmpLink output. It is designed for small to medium conference rooms. The EX-1280C scales up to 12 analog inputs, 8 outputs, 12-channel AEC, 2 VoIP lines, 64x64 Dante, and an 8-channel AmpLink output for larger or multi-room deployments.

Can the EX-440C's VoIP be configured by the IT department without involving the AV integrator?

Yes. The single VoIP line has a built-in web interface accessible at the unit's IP address. IT administrators can set all SIP 2.0 parameters — server, credentials, dial plan — directly through a browser without accessing or modifying the ControlSpace Designer design file.

Does the EX-440C work with ceiling microphone arrays using Dante?

Yes. The 16x16 Dante port accepts audio from any Dante-enabled microphone, including ceiling array microphones. Dante inputs are routable to the onboard AEC engine, so echo cancellation can be applied to Dante microphone sources as well as the 4 onboard analog inputs.

What amplifiers are compatible with the EX-440C's AmpLink output?

The AmpLink output is compatible with any AmpLink-equipped Bose Professional amplifier, including the PowerShare PS604D and PowerShare PS404D. The 4-channel AmpLink output connects via a single shielded Cat 5/6 cable, delivering uncompressed digital audio with less than 21 μs latency.

Is the EX-440C compatible with Crestron and AMX control systems?

Yes, via the onboard RS-232 and Ethernet ports. ControlSpace Designer generates a serial command API for third-party control system programming. The EX-440C is also compatible with Bose CC-16 wall controllers, though the EX-440C has a single RS-232 DTE port rather than the RS-485 CC-16 master port found on the larger EX-1280 and EX-1280C models.

What does the single GPIO input do?

The 1-channel GPI (general purpose input) accepts a contact closure or voltage input from external systems. Common uses include fire alarm audio mute, room occupancy sensor-triggered standby, and external button control for preset changes or source selection. Logic programming is handled within ControlSpace Designer.

What is the warranty on the Bose ControlSpace EX-440C?

Bose Professional products are covered by Bose's standard commercial warranty. Contact Creation Networks for current warranty terms and service options.