Allen & Heath AH-AHM-64 64x64 Audio Matrix Processor with 12x12 I/O

Allen & Heath AHM-64 – 64x64 Audio Matrix Processor for Commercial AV Installation

The Allen & Heath AHM-64 is a 64x64 audio matrix processor purpose-built for sound management in installed AV environments, delivering sophisticated audio distribution, paging, conferencing, and speaker processing from a single 2 RU rack unit. With 12 local analog inputs and 12 local analog outputs on Phoenix connectors, plus an I/O expansion port supporting up to 128x128 channels via proprietary point-to-point or Dante transport, the AHM-64 scales from small meeting room systems to large multi-zone campus deployments. Its 96 kHz FPGA processing core provides ultra-low latency and the headroom required for high channel count installations without compromising audio quality.

Product Description

The AHM-64 is designed for the commercial AV integrator working in environments where audio must be reliably distributed, zoned, and managed across multiple spaces. The 64 configurable processing outputs can be routed, mixed, and processed independently, allowing one unit to simultaneously handle FOH, paging, overflow zone, and conference room audio without additional hardware. Each output includes a full signal processing chain for speaker management including parametric EQ, dynamics, and delay.

The local 12x12 Phoenix connector I/O handles the primary source and destination connections, while the expansion port extends the system to Allen & Heath's full range of portable, rackmount, and wallmount expanders. Integrators can choose between Allen & Heath's proprietary Layer-2 protocol for point-to-point connections or Dante/AES67 for IP-networked audio distribution — both are supported, and the choice does not require different hardware.

Third-party control integration is handled via GPIO, TCP/IP, and RS-232, supporting common control systems from Crestron, AMX, Q-SYS, and similar platforms. Allen & Heath's own IP remote controllers provide volume control, source selection, and preset recall at zone level without requiring a third-party controller. The AHM-64's Automatic Mic Mixing (AMM) function manages multi-microphone conference and panel talk scenarios, reducing background noise gain and operator intervention. Audio Designer software provides the configuration and signal flow interface for system programming.

Key Features

• 64x64 Audio Matrix with 128x128 Expansion — Core 64-channel matrix expandable to 128x128 via the I/O expansion port using compatible Allen & Heath expanders
• 12x12 Local Analog I/O — Phoenix block connector inputs and outputs for direct wiring in equipment racks without breakout cables
• 64 Configurable Processing Outputs — Independent EQ, dynamics, and delay per output for speaker management and zone-level audio control
• 96 kHz FPGA Processing Core — Ultra-low latency FPGA engine handles high channel counts with consistent timing performance across all zones
• Proprietary and Dante/AES67 Transport — Supports both Allen & Heath point-to-point Layer-2 and Dante/AES67 IP audio for flexible network architecture
• Third-Party Control Integration — GPIO, TCP/IP, and RS-232 ports allow integration with Crestron, AMX, and other building control systems
• Allen & Heath IP Remote Controllers — Compatible range of IP wall panels and touchscreens provides zone-level control without a dedicated control processor
• Automatic Mic Mixing (AMM) — Reduces gain for inactive microphones in multi-mic conference and panel applications to control background noise

Typical Applications

• Boardroom and executive conference room audio distribution and conferencing
• Conference room campus-wide multi-zone audio matrix for corporate installations
• Government space and civic facility audio management systems
• House of worship multi-zone distribution including sanctuary, overflow, lobby, and nursery
• All-hands room and training room paging and audio routing
• Commercial meeting space and multi-purpose room audio infrastructure

Technical Specifications

Frequently Asked Questions

What is the AHM-64 designed for?

The AHM-64 is designed for commercial AV installation applications including audio distribution, paging, conferencing, and speaker processing in multi-zone environments such as corporate offices, houses of worship, government facilities, and educational campuses.

How does the AHM-64 expand beyond 12x12 local I/O?

The AHM-64's I/O expansion port connects to Allen & Heath's range of audio expanders — including DT164, DT168, GX4816, and Dante-equipped units — extending the total system I/O up to 128x128 channels.

Does the AHM-64 support Dante networking?

Yes. The AHM-64 supports both Allen & Heath's proprietary Layer-2 transport and Dante/AES67 for IP-networked audio distribution. The choice of protocol depends on the network infrastructure and other devices in the system.

Can the AHM-64 integrate with Crestron or AMX control systems?

Yes. The AHM-64 provides GPIO, TCP/IP, and RS-232 interfaces for integration with third-party control systems including Crestron, AMX, and Q-SYS. Allen & Heath also publishes a control protocol document for custom integration.

What software is used to configure the AHM-64?

The AHM-64 is configured using Allen & Heath's Audio Designer software, which provides a graphical interface for signal routing, processing setup, and zone configuration. Audio Designer runs on Windows and is available as a free download.

Does the AHM-64 include Automatic Mic Mixing?

Yes. The AHM-64 includes Automatic Mic Mixing (AMM), which reduces the gain of microphones that are not actively being spoken into. This is particularly useful in conference rooms and panel discussions with multiple open microphones.

What Allen & Heath remote controllers are compatible with the AHM-64?

Allen & Heath's IP wall panels, touchscreens, and the HIVE IP control app are all compatible with the AHM-64, providing zone-level volume control, source selection, and preset recall without a dedicated third-party control processor.