Merging Technologies ADO8V3S – 8-Channel Mic/Line AD Card with Direct Outs for HAPI MKIII (192kHz)

OVERVIEW

The Merging Technologies ADO8V3S is a premium 8-channel Mic/Line analogue-to-digital input card designed specifically for the HAPI MKIII modular networked audio interface. Featuring eight exceptionally transparent Swiss-designed microphone preamps with remote control, it provides uncompromising audio quality for professional studios, broadcast facilities, live sound applications and immersive audio production. Supporting sample rates up to 192kHz, the ADO8V3S captures every detail with remarkable clarity, wide dynamic range and ultra-low distortion.

Unlike conventional input cards, the ADO8V3S also includes eight post-preamp analogue direct outputs, making it ideal for simultaneously feeding external processors, analogue consoles or monitoring systems while recording. Every channel offers individually switchable phantom power, polarity inversion, low-cut filtering and selectable input impedance, all remotely accessible for complete workflow flexibility. Merging’s renowned dual-gain microphone preamp topology ensures outstanding transparency with up to 78dB of gain, making it equally capable with delicate ribbon microphones, dynamic microphones and modern condenser microphones.

Built to the same uncompromising standards as every Merging Technologies product, the ADO8V3S combines precision analogue circuitry, premium A/D conversion and comprehensive remote operation into a powerful expansion solution for engineers who demand absolute sonic accuracy without sacrificing routing flexibility.

KEY HIGHLIGHTS

Exceptional Swiss-Designed Microphone Preamps

Eight ultra-transparent microphone preamps deliver pristine recordings with exceptional headroom, extremely low noise and outstanding detail across virtually any recording application.

Integrated Direct Analogue Outputs

Each input channel includes its own post-preamp direct output, allowing simultaneous recording, analogue processing or console feeds without additional splitter hardware.

Complete Remote Control

All critical parameters—including gain, phantom power, polarity inversion, impedance and low-cut filtering—can be controlled remotely for fast and efficient workflow integration.

Professional 192kHz Recording

Supports recording at sample rates up to 192kHz, providing exceptional resolution and accuracy for music production, broadcast, post-production and immersive audio applications.

Designed for HAPI MKIII

Purpose-built for the Merging Technologies HAPI MKIII modular platform, allowing flexible expansion as studio requirements evolve.

FEATURES

• 8-channel Mic/Line analogue-to-digital input card for the Merging Technologies HAPI MKIII
• Supports recording at sample rates up to 192kHz
• Eight exceptionally transparent Swiss-designed microphone preamps
• Third-generation dual-gain microphone preamp architecture inspired by Anubis technology
• Up to 78dB microphone gain with Boost mode
• Eight analogue post-preamp direct outputs for external routing and monitoring
• Remote-controlled gain adjustment on every channel
• Per-channel phantom power switching
• Per-channel polarity inversion
• Per-channel selectable input impedance
• Per-channel low-cut filter
• Remote or local line-level operation
• Outstanding 139dB (A-weighted) dynamic range on line inputs
• Extremely low THD+N and ultra-low noise performance
• Auto-mute circuitry prevents pops during power cycling
• High-quality DB25 AES59 analogue connectors
• Ideal for professional recording, broadcast, live production and immersive audio systems
• Fully integrates with the HAPI MKIII modular ecosystem.

TECHNICAL SPECS

General

Product Type: 8-Channel Mic/Line Analogue-to-Digital Expansion Card

Compatibility: Merging Technologies HAPI MKIII

Conversion: Analogue to Digital (A/D)

Maximum Sample Rate: Up to 192kHz

Direct Outputs: 8 x Post-Mic Pre Analogue Outputs

Connector Format: DB25 (AES59/Tascam Analogue)

Microphone Inputs

Channels: 8

Microphone Preamps: Swiss-designed, 3rd Generation Dual Gain

Gain Range: 0dB to +66dB (software controlled)

Maximum Gain (Boost): Up to 78dB

Gain Resolution: 0.5dB steps

Gain Accuracy: ±0.2dB

Phantom Power: +48V, switchable per channel

Polarity Reverse: Switchable per channel

Low-Cut Filter: 80Hz, software switchable

Selectable Input Impedance: Yes (per channel)

Audio Performance

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

Dynamic Range (Mic Pre + ADC): Up to 137dB (A-weighted typical)

Frequency Response:

• 1.8Hz–21kHz @ 44.1kHz
• 1.8Hz–45.4kHz @ 96kHz

THD+N (1kHz): <0.00031%

Common Mode Rejection: >75dB

EIN: -128dBu (typical)

Direct Outputs

Quantity: 8

Type: Post Microphone Preamp

Maximum Output Level: +24dBu

Output Impedance: <100Ω

Connectivity

Analogue Inputs: 8 x Mic/Line via DB25 AES59

Direct Outputs: 8 x Analogue via DB25 AES59

Additional Features

Fully remote controllable

Auto-mute circuitry for silent power cycling

Supports analogue mic splitting workflows

Removes the need for external DI boxes in many recording applications

Precision analogue circuitry with ultra-low distortion

Designed and manufactured for professional recording, broadcast and immersive audio environments.