Allen & Heath AHM64 Audio Matrix Processor

Access Complete Sound System Management and Control with the Allen & Heath AHM64 64x64 Audio Matrix Processor

AHM is a family of powerful Audio Matrix Processors supported by a comprehensive ecosystem of scalable I/O, control and Dante solutions. Designed to excel in corporate, retail, hospitality and education environments, AHM matrix processors allow integrators to quickly create systems that build from a single boardroom to a complete campus. The most powerful matrix processor in the range, AHM-64 can scale to large campus installations with up to 64 zones, 96 controllers and hundreds of system I/O.

• 64x64 processing matrix
• 12x12 local analogue I/O
• I/O Port for audio networking, up to 128x128
• Dante 96kHz 64x64 optional card (AES67 and DDM ready)
• 128x128 built-in SLink port for audio expansion
• 64 configurable processing outputs - mono / stereo zones or speaker processing
• 96kHz FPGA core with ultra-low latency
• Compatible with IP1, IP6, IP8 remote controllers
• 2x2 local GPIO plus networkable GPIO interface
• TCP/IP protocol for third party integration
• Crestron, AMX and Extron drivers
• DC backup power supply
• Mac / Windows System Manager software
• Custom Control app and editor for BYOD
• 32 user profiles
• Integrated stereo playback
• Event scheduler

Uncompromised Power and Flexibility

AHM processors deploy next-generation FPGA technology and 96kHz sample rate, bringing acclaimed Allen & Heath sound quality and sub-millisecond latency to installation. The audio engines have the power to deliver far more processing than the usual open architecture platforms, including 8-band PEQ, gate, compressor and delay on all input channels, and 8-band PEQ, 30-band GEQ, compressor, ANC, source selector, limiter and delay on all zone outputs.

Everything I/O

SLink allows plug 'n play connection to up to 8 remote expanders from Allen & Heath's extensive Everything I/O range, which includes wall mount, rack and portable options. With hundreds of routable system inputs and outputs, AHM can cater for projects ranging from a single room to large, distributed spaces.

A World of Control

An AHM system can be controlled using Allen & Heath's range of remote controllers, GPIO and 3rd party devices. With up to 96 IP remote controllers over a standard TCP/IP network, every room can enjoy local volume control, source select and preset recall.

Custom Control App

Designing the perfect user interface for each type of user has never been so easy. Custom Control is a customizable, cross-platform control app, providing elegant, bespoke control over an AHM system.

• Multiple user interfaces (per user, per device type)
• Custom graphics and background
• Kiosk mode
• BYOD friendly
• Optional password protection
• iOS / Android / Windows / Mac

CC-7 & CC-10 Touch Panels for Custom Control

Perfect companions for AHM matrix processors, dLive or Avantis systems in installations, CC-7 and CC-10 are control touch panels for desktop or wall mount use. Powered by the Allen & Heath Custom Control app, they can operate as fixed control devices or complementing a BYOD solution. From simple music source selection to level control, preset recall or paging, they offer an alternative to IP remote controllers for applications where a touchscreen interface is preferred.

Acoustic Echo Cancellation

The Acoustic Echo Cancellation (AEC) module for AHM-64 provides 12 channels of AEC and is designed for teleconferencing and videoconferencing applications. The AEC processors are assigned using channel inserts in the AHM. One insert sits in the far-end Input channel, and the other in the near-end Input channel. A Sound Reinforcement output is also provided for cases where local voice reinforcement is required.

AHM System Manager

The intuitive AHM System Manager software and AHM’s flexible architecture allow rapid configuration, with no certified programming training required. AHM matrix processors strike a balance between the simplicity and set latency of fixed architecture, and the flexibility normally reserved for open architecture platforms, allowing them to handle sound management, paging, audio distribution, conferencing and speaker processing roles.

TECHNICAL SPECIFICATIONS

Inputs

• Mic/Line Inputs: Balanced, +48V phantom power
• Mic/Line Preamp: Fully recallable
• Input Sensitivity: -60 to +15 dBu
• Analog Gain: +5 to +60 dB, 1 dB steps
• Pad: -20 dB Active PAD
• Maximum Input Level: +30 dBu (PAD in)
• Input Impedance: >3 kΩ (Pad out), >8 kΩ (Pad in)
• Mic EIN: -127 dB with 150 Ω source

Outputs

• Analog Outputs: Balanced, Relay protected
• Output Impedance: <75 Ω
• Nominal Output: +4 dBu = 0 dB meter reading
• Maximum Output Level: +22 dBu
• Residual Output Noise
• -94 dBu (muted, 20 Hz - 20 kHz)
• -92 dBu (muted, 20 Hz - 40 kHz)

System

Measured balanced XLR in to XLR out, 20 Hz - 20 kHz, +5 dB Gain, Pad out, signal @ 0dB (meter)

• Dynamic Range: 110 dB
• System Signal to Noise: -94 dB
• Frequency Response: 20 Hz - 25 kHz, +0 / -0.8 dB
• THD+N (analog in to out): 0.005% @ +16 dBu output, 1 kHz +5 dB gain
• Headroom: +18 dB
• Sampling Rate: 96 kHz +/- 20 PPM
• Internal Playback Storage: ~3GB
• Playback File Types: Mono/stereo .WAV (16/24bit, 44.1/48/96kHz), MP3, FLAC
• Operating Temperature Range: 32 deg F to 104 deg F (0 deg C to 40 deg C)
• Mains Power: 100 - 240 V AC, 50 - 60 Hz, 70 W max
• DC Power: 12 VDC - 5 A minimum capable supply

Dimensions and Weights

• Dimensions (W x D x H): 19 x 14.3 x 3.6 inches / 482.6 x 364 x 91.2 mm
• Boxed Dimensions (W x D x H) 23.6 x 19.7 x 7.1 inches / 600 x 500 x 180 mm
• Weight: 15.5 lbs / 7 kg
• Boxed Weight: 21 lbs / 9.5 kg

PROCESSING SPECIFICATIONS

Input Processing

• 64 Input Channels: Configurable mono or stereo
• Trim: +/-24 dB digital trim
• Polarity: Normal / Reverse
• Stereo Width Control: L/R, R/L, L -Pol/R, R -Pol/L, Mono, L/L, R/R, M/S
• Gate
• Sidechain: Self-key or source selectable, with 12 dB/octave Lo-Pass and Hi-Pass
• Threshold: -72 dBu to +12 dBu
• Depth: 0 to 60 dB
• Attack: 50 us to 300 ms
• Hold: 10 ms to 5 s
• Release: 10 ms to 1 s
• Insert: In/Out, +4 dBu/-10 dBV level
• PEQ
• Type: 8-Band fully parametric, +/-15 dB
• Band 1 - 8: Selectable LF/HF Shelving, Bell (variable or constant Q), Hi-Pass / Lo-Pass, Notch)
• Bell Width: 0.50 – 6.00 Q
• Shelving Type: Classic Baxandall
• Hi-Pass, Lo-Pass Filter: 12 dB/octave
• Compressor: Peak or RMS sensing
• Sidechain: Self-key or source selectable, with 12 dB/octave Lo-Pass and Hi-Pass
• Threshold: -46 dBu to 18 dBu
• Compressor Parameters: Threshold, Ratio, Attack, Release
• Delay: Up to 683 ms

Zone Processing

• Up to 64 Zones: Configurable mono or stereo
• Source Selector: Up to 20 sources, variable level, Fade In and Fade Out time <20 s
• Insert: In/Out, +4 dBu/-10 dBV level
• GEQ: 28 bands 31 Hz - 16 kHz, +/-12 dB, constant-Q
• PEQ: Same specifications as Input Processing
• Compressor: Same specifications as Input Processing
• Delay: Up to 683 ms
• ANC
• Ambient Level: Selectable source and metering point, Gain Differential -18 dB to 40 dB
• Gap: Selectable source and metering point, Threshold -62 dB to -20 dB, Time 0 - 5000 ms
• Gain Element: Min / Max Gain, Rate 0 - 30 dB/s
• Limiter: Variable Threshold, Attack and Release

Speaker Processing

• Crossovers: Configurable 2, 3, 4 way
• Filters: Asymmetrical, selectable 1st order, Butterworth 12/18/24 db/octave, LR 12/24 dB/octave
• PEQ: 4-Band fully parametric
• Delay: Up to 683 ms
• Limiter: Variable Threshold, Attack and Release

AMM

• Channels: 1x64, 2x32, 4x16 or 8x8
• Modes: D-Classic gain sharing or NOM

Manufacturer: Allen & Heath
Model: AH-AHM-64
SKU: I668936-0-WHXA

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.