Allen & Heath AH-M-DX32-PRIME-IN-A PRIME Mic/Line Input Module - 8 XLR

Allen & Heath AH-M-DX32-PRIME-IN-A — PRIME Mic/Line Input Module, 8 XLR Channels

The Allen & Heath AH-M-DX32-PRIME-IN-A PRIME module is an 8-channel, next-generation microphone and line input card for use with the DX32 stage rack, providing premium analog-to-digital conversion for SQ, dLive, and Avantis mixing systems. The PRIME module's DC-coupled gain stage, 32-bit/96kHz ADC, and 4-channel summed ADC architecture represent a significant advancement over standard preamp module designs, targeting the highest-demand applications in touring, broadcast, and live recording where audio quality is the primary constraint. Each of the eight XLR input channels is hand-trimmed during manufacturing for optimum common mode rejection and noise performance.

Product Description

The most significant engineering distinction of the PRIME module is its DC-coupled gain stage. Conventional microphone preamp designs use AC coupling throughout the gain path, which introduces low-frequency distortion and phase anomalies below the coupling capacitor's cutoff frequency. The PRIME design eliminates AC coupling from the gain stage entirely, extending LF linearity and phase response down to 1 Hz — far below the audible range but critical for the accuracy of low-frequency instrument reproduction and the preservation of transient shape on bass, kick drum, and low-register sources.

Each channel uses four parallel 32-bit ADC channels summed together, increasing dynamic range and signal-to-noise ratio beyond what a single ADC can achieve at any given sample rate. This 4-channel summed ADC architecture delivers class-leading conversion performance at 96kHz that surpasses standard single-converter designs by a measurable margin. The result is a broader dynamic range, lower noise floor, and improved detail retrieval on complex audio material including orchestral recordings, acoustic instruments, and critical speech applications.

Full metal shielding throughout the module's PCB and housing provides increased RF rejection, protecting the analog signal path from interference sources common in live event environments including wireless systems, LED lighting, and power distribution infrastructure. Each channel is individually calibrated during commissioning for optimum CMRR performance. The PRIME module is optimized to operate with the XCVI FPGA processing core used in SQ, dLive, and Avantis systems, and its 96kHz native sample rate matches the highest-resolution operating mode of those consoles.

Key Features

• DC-Coupled Gain Stage — Eliminates AC coupling from the preamp signal path, removing the LF distortion and phase anomalies inherent in capacitor-coupled gain stages and extending linear response to 1 Hz.
• Ultra-Flat Frequency Response (1 Hz–40 kHz) — Extended bandwidth beyond the audible range ensures that high-resolution recording captures the full character of acoustic instruments without band-limiting artifacts.
• 4-Channel Summed ADC Architecture — Four 32-bit ADC channels summed per input extend dynamic range and SNR beyond single-converter performance, delivering class-leading conversion at 96kHz.
• 32-Bit/96kHz ADC — Latest-generation 32-bit converters operating at 96kHz match the native resolution of SQ, dLive, and Avantis XCVI processing for end-to-end high-resolution audio chains.
• Per-Channel Hand Trimming — Each of the eight input channels is individually calibrated during manufacturing for optimum common mode rejection ratio (CMRR), minimizing channel-to-channel variation in noise and interference rejection.
• Full Metal RF Shielding — Comprehensive metal shielding throughout the module provides increased rejection of RF interference from wireless systems, LED fixtures, and power distribution equipment common in live sound environments.
• Meticulous Power Supply Design — Optimized grounding and power supply architecture within the module minimizes noise and distortion contributions independent of the host rack's power supply quality.
• Compatible with SQ, dLive, and Avantis via DX32 — Installs in the DX32 stage rack, which connects to SQ, dLive, and Avantis consoles over SLink, providing the PRIME preamp upgrade path across Allen & Heath's professional mixing platforms.

Typical Applications

• dLive System Integration — Installs in DX32 stage racks connected to dLive systems via SLink, providing a premium preamp upgrade for touring and theatrical productions where the highest audio quality is required at the mic input stage.
• Avantis System Integration — Equips Avantis-based systems with next-generation preamp performance for high-resolution live mixing and recording applications including concert production and broadcast events.
• SQ System Expansion — Connects to SQ consoles via SLink through the DX32 rack, extending SQ systems with premium analog conversion for recording studios, broadcast studios, and high-demand live production environments.
• Broadcast and Recording — The DC-coupled gain stage, extended frequency response, and summed ADC architecture make the PRIME module appropriate for broadcast contribution chains and multi-track recording sessions where conversion quality directly impacts the final product.

Technical Specifications

Frequently Asked Questions

What host rack does the PRIME module install into?

The AH-M-DX32-PRIME-IN-A installs into the Allen & Heath DX32 stage rack. It is not compatible with DX168 or other Allen & Heath stage rack models. The DX32 connects to SQ, dLive, and Avantis systems via the SLink port.

How many PRIME modules can be installed in a single DX32 rack?

The DX32 accommodates multiple input module slots. Contact Creation Networks or refer to the DX32 documentation for the specific number of module slots available and compatible module combinations within a single DX32 chassis.

What is the practical benefit of the DC-coupled gain stage compared to a standard preamp?

The DC-coupled design eliminates the low-frequency phase shift and distortion introduced by the input coupling capacitors in standard preamp designs. The audible result is improved bass accuracy, better kick drum transient reproduction, and more natural low-register instrument capture — differences most apparent in high-resolution recording and critical listening contexts.

Is the PRIME module compatible with 48kHz systems, or does it require 96kHz operation?

The module is optimized for 96kHz operation. It is physically compatible with SQ, dLive, and Avantis systems operating at lower sample rates, but the full performance advantage of the summed ADC architecture and extended frequency response is realized at 96kHz.

Can the PRIME module replace standard input modules in an existing DX32?

Yes. The PRIME module is a plug-in replacement for standard DX32 input modules, allowing existing DX32 racks to be upgraded with premium preamp performance on a per-slot basis without replacing the entire stage rack.

What warranty applies to the AH-M-DX32-PRIME-IN-A?

Allen & Heath option modules are covered under the standard Allen & Heath limited warranty when purchased through authorized dealers. Contact Creation Networks for warranty registration and regional support information.