Merging Technologies HAPI MKIII – 1U Modular Networked Audio Interface & Converter
OVERVIEW
Built for Modern Professional Audio Networks
The Merging Technologies HAPI MKIII is a next-generation modular networked audio interface engineered for world-class recording, broadcast, live sound and immersive audio production. Designed around Merging’s renowned RAVENNA/AES67 platform, it combines mastering-grade audio quality with flexible expansion, allowing users to configure the system to suit virtually any application. As a Dante Ready™ device, the HAPI MKIII can also be upgraded with an optional Audinate licence, making it equally at home in Dante-based installations.
Modular Flexibility Without Compromise
Housed in a compact 1U chassis, the HAPI MKIII features two modular expansion slots that support a wide range of analogue and digital I/O cards, including microphone preamps, line inputs and outputs, MADI, Pro Tools DigiLink and more. Built-in AES/EBU, ADAT, S/PDIF and dual network ports provide exceptional connectivity, while support for protocols including AES67, ST 2110, ST 2022-7, NMOS and LAWO HOME ensures seamless integration into modern professional audio and broadcast environments. Premium I/O cards also support ultra-high-resolution PCM, DXD and DSD recording formats for uncompromising audio performance.
Designed for Demanding Workflows
Whether serving as the primary interface for a recording studio, a networked stagebox for live productions or an expandable audio hub for broadcast and post-production, the HAPI MKIII delivers exceptional reliability, near-zero latency and comprehensive routing flexibility. Remote control via a web browser or network software, mastering-grade headphone monitoring and extensive routing capabilities make it an ideal centrepiece for professional audio systems where performance and scalability are essential.
KEY HIGHLIGHTS
Fully Modular 1U Audio Platform
Configure the HAPI MKIII to suit your workflow using two expansion slots supporting analogue, digital, MADI and Pro Tools DigiLink I/O cards, allowing the system to grow alongside your studio or broadcast requirements.
RAVENNA/AES67 & Dante Ready™ Networking
Native RAVENNA/AES67 networking provides outstanding low-latency performance and compatibility with modern AoIP standards, while Dante Ready™ capability enables optional Audinate licensing for seamless integration into Dante networks.
High-Resolution Professional Audio
Support for PCM sample rates up to 384kHz, DXD and DSD256 (with Premium I/O cards) delivers exceptional audio quality for mastering, classical recording, immersive audio and critical production environments.
Comprehensive Digital Connectivity
Built-in AES/EBU, ADAT, S/PDIF, Word Clock and dual RJ45 network ports provide extensive connectivity for professional studio, broadcast and live sound systems.
Built for Broadcast & Immersive Audio
Supporting ST 2022-7, ST 2110, NMOS and LAWO HOME, the HAPI MKIII integrates effortlessly into today’s advanced broadcast, immersive audio and large-scale networked production environments.
Mastering-Grade Monitoring
Two high-quality headphone outputs with powerful amplification provide accurate monitoring across a wide range of headphone impedances, making the HAPI MKIII equally suited to critical listening and production work.
FEATURES
- 1U modular professional networked audio interface and converter
- Native RAVENNA/AES67 audio-over-IP networking
- Dante Ready™ architecture with optional Audinate Dante licence
- Two modular expansion slots supporting analogue and digital I/O cards
- Compatible with microphone preamp, line I/O, MADI and Pro Tools DigiLink expansion cards
- Supports up to 152 input and 154 output channels depending on configuration
- Up to 256 network audio channels in RAVENNA/AES67 mode
- Up to 64 Dante channels with optional Dante licence
- Built-in AES/EBU, ADAT and S/PDIF digital I/O
- Dual Gigabit Ethernet ports supporting redundancy or switch mode
- Supports ST 2022-7 Seamless Protection Switching
- Compatible with ST 2110, NMOS and LAWO HOME broadcast standards
- Sample rates up to 384kHz PCM, DXD and DSD256 with Premium analogue cards
- Near-zero latency monitoring and routing
- Powerful mastering-grade dual headphone outputs
- Flexible channel-based routing with browser-based remote control
- OLED front-panel display with rotary encoder for local operation
- AC or DC power supply compatibility
- Ideal for recording studios, broadcast, post-production, live sound and immersive audio production
- Designed and engineered in Switzerland for uncompromising professional performance.
TECHNICAL SPECS
General
Product Type: Modular Networked Audio Interface & Audio Converter
Rack Format: 1U
Architecture: Fully Modular
Audio Networking
Network Protocols:
- RAVENNA
- AES67
- Dante Ready™ (optional Audinate licence)
Broadcast Standards:
- SMPTE ST 2022-7
- SMPTE ST 2110
- NMOS
- LAWO HOME
Network Ports: 2 × RJ45 Gigabit Ethernet (Redundancy or Switch Mode)
Audio Performance
Maximum Sample Rate: Up to 384kHz PCM
High-Resolution Formats:
- DXD
- DSD64
- DSD128
- DSD256 (Premium analogue cards)
Latency: Near-zero (<1ms input to output)
Built-In Digital I/O
AES/EBU: 8-channel (DB25)
ADAT: 8-channel Optical
S/PDIF: 2-channel Optical (switchable)
Word Clock: BNC I/O
Video Reference: Supported
MIDI: Via Sync Cable
LTC: Supported via Sync Cable
Expansion
Expansion Slots: 2
Compatible Cards:
- Mic/Line Input Cards
- Line Output Cards
- Combined Analogue I/O Cards
- MADI128
- Pro Tools DigiLink PT64
Monitoring
Headphone Outputs: 2 × Mastering-grade headphone outputs
Headphone Support: Suitable for ultra-low to high-impedance headphones
Control
Front Panel: OLED display with rotary encoder
Remote Control: Web browser interface via LAN
Routing: Comprehensive channel-based routing
Compatibility
Operating Systems: Compatible with Windows, macOS and Linux via Merging software ecosystem and supported network audio workflows.
Power
Power Options: AC or DC operation
Package Contents
1 x Merging Technologies HAPI MKIII
1 x Rack mounting hardware
1 x Power cable
1 x RJ45 network cable
1 x Quick Start Guide
1 x Safety documentation








