Merging Technologies ADA8V3S – 8-Channel Mic/Line A/D & D/A Converter Card for HAPI MKIII (192kHz)

OVERVIEW

The Merging Technologies ADA8V3S is a high-performance 8-channel mic/line A/D and D/A converter card designed specifically for the HAPI MKIII modular network audio interface. Combining eight ultra-transparent remote-controlled microphone preamps with eight premium analogue outputs, it provides a complete analogue I/O solution for professional recording studios, broadcast facilities, live sound, post-production and immersive audio environments. Supporting PCM sample rates up to 192kHz, the ADA8V3S delivers the outstanding sonic accuracy and reliability that have become synonymous with Merging Technologies.

Each microphone preamp offers software-controlled gain up to 66dB, individually switchable 48V phantom power, polarity inversion and an 80Hz high-pass filter, allowing precise control directly from your HAPI MKIII system. Exceptional analogue performance includes up to 139dB (A-weighted) dynamic range on the line inputs, 126dB (A-weighted) dynamic range on the outputs, extremely low THD+N and outstanding channel separation, ensuring pristine recordings and transparent playback across every channel.

Designed for engineers who demand uncompromising audio quality, the ADA8V3S integrates seamlessly into the modular HAPI MKIII platform, making it an ideal choice for high-end music production, classical recording, broadcast, immersive monitoring and mission-critical professional audio installations.

KEY HIGHLIGHTS

Complete 8-Channel Analogue I/O

Combines eight premium microphone/line inputs with eight high-quality analogue outputs in a single expansion card, providing a complete recording and playback solution for the HAPI MKIII.

Ultra-Transparent Mic Preamps

Eight remote-controlled microphone preamps deliver up to 66dB of clean gain with individually switchable phantom power, polarity inversion and high-pass filtering for maximum recording flexibility.

Reference-Grade Audio Performance

Delivers up to 139dB (A-weighted) dynamic range on line inputs and 126dB (A-weighted) on outputs with exceptionally low distortion and outstanding channel separation.

Supports High-Resolution Recording

Supports PCM recording and playback at sample rates up to 192kHz, making it suitable for demanding studio, broadcast and post-production workflows.

Software-Controlled Operation

Gain, phantom power, polarity inversion, input sensitivity and output levels are all remotely controlled for fast setup and precise recall within professional production environments.

Seamless HAPI MKIII Integration

Designed exclusively for the Merging Technologies HAPI MKIII modular platform, allowing users to build flexible, scalable and future-ready audio systems.

FEATURES

• 8-channel Mic/Line A/D and D/A converter card for the Merging Technologies HAPI MKIII.
• Supports PCM sample rates up to 192kHz.
• Eight remote-controlled microphone preamps with up to 66dB of gain.
• Eight balanced analogue line outputs for premium playback and monitoring.
• Software-controlled microphone gain with 0.5dB adjustment steps.
• Individual 48V phantom power switching on every microphone channel.
• Per-channel polarity inversion and 80Hz high-pass filter.
• Mic Boost mode for lower-level signal sources.
• Up to 139dB (A-weighted) dynamic range on line inputs.
• Up to 126dB (A-weighted) dynamic range on line outputs.
• Extremely low THD+N for transparent recording and playback.
• Outstanding interchannel crosstalk performance for precise stereo imaging.
• AES59 (Tascam) DB-25 analogue input and output connectivity.
• Software-selectable output reference levels.
• Designed for recording, broadcast, immersive audio, post-production and professional studio applications.
• Fully integrated with the HAPI MKIII modular ecosystem.

TECHNICAL SPECS

General

Product Type: 8-Channel Mic/Line A/D & D/A Converter Card

Compatibility: Merging Technologies HAPI MKIII

Conversion: Analogue-to-Digital & Digital-to-Analogue

Maximum Sample Rate: 192kHz PCM

Application: Recording, mixing, broadcast, live production, immersive audio and post-production

Mic Preamp & A/D Section

Mic Inputs: 8 x Remote-Controlled Mic/Line Inputs

Maximum Mic Input: +24dBu (Pad), +12dBu (Mic), 0dBu (Boost)

Gain Range: 0 to +66dB

Gain Resolution: 0.5dB

Input Impedance: 3kΩ / 10.4kΩ (software selectable)

Dynamic Range (Mic): 137dB (A-weighted)

Dynamic Range (Mic Boost): 128dB (A-weighted)

Line Input Dynamic Range: 139dB (A-weighted)

THD+N: < -111dB (0.00028%)

Equivalent Input Noise (EIN): < -127dBu

Interchannel Crosstalk: < -130dB

Common Mode Rejection: >75dB

Phantom Power: +48V (software switchable per channel)

Polarity Invert: Yes

High-Pass Filter: 80Hz, 12dB/octave

D/A Output Section

Analogue Outputs: 8 x Balanced Line Outputs

Maximum Output Level: +24dBu or +18dBu (software selectable)

Output Impedance: <80Ω

Dynamic Range: 125dB (flat), 126dB (A-weighted typical)

THD+N: < -115dB (0.00017%)

Interchannel Crosstalk: < -139dB

Gain Resolution: 0.5dB

Frequency Response

A/D SECTION

• 48kHz: 9Hz–22kHz (±0.3dB)
• 96kHz: 9Hz–46kHz (±0.3dB)
• 192kHz: 11Hz–94kHz (±0.3dB)

D/A SECTION

• 48kHz: 0Hz–22kHz (±0.3dB)
• 96kHz: 0Hz–46kHz (±3dB)
• 192kHz: 0Hz–92kHz (±3dB)

Latency

Input Latency: 8 samples (44.1–192kHz)

Output Latency (Slow Roll-Off): 9 samples

Output Latency (Sharp Roll-Off): 38 samples

Connectivity

Analogue Inputs: DB-25 Female (AES59/Tascam)

Analogue Outputs: DB-25 Female (AES59/Tascam)

Compatibility

Designed exclusively for the Merging Technologies HAPI MKIII

Fully compatible with the HAPI MKIII modular audio platform

Supports professional PCM recording workflows up to 192kHz.