Universal Audio Apollo x16 Gen 2 ESS+ (Rack/TB3/MAC/WIN)
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Home / Universal Audio Apollo x16 Gen 2 ESS+ (Rack/TB3/MAC/WIN)
The Flagship Core for Analog Consoles & Immersive Mixing Layouts
Tailored specifically for elite audio engineers, commercial projects, and large-format tracking rooms, the Apollo x16 Gen 2 Essentials+ Edition strips away onboard microphone preamps in favor of maximizing line-level conversion purity and channel density. Providing 16 channels of balanced analog inputs and outputs across four standard DB25 connectors, it is the perfect link to interface seamlessly with massive external patch bays, high-end tube summing mixers, external outboard rack preamps (Neve, API, SSL), or multi-channel large-format analog recording consoles.
The crowning achievement of the Gen 2 series is its flawless audio conversion layout. Featuring custom analog circuitry and ultra-stable Dual-Crystal Clocking, it treats monitor and line playback with a spectacular 133 dB dynamic range, ensuring deep low-end definition, clear transient representation, and microscopic stereo or multi-channel space localization. Operating over high-bandwidth Thunderbolt 3 connectivity with premium low-latency drivers across macOS and Windows, its built-in HEXA Core hardware processing matrix carries your UAD plug-in workload completely internally, maintaining a nimble, lag-free DAW tracking environment.
6-CORE HEXA CORE DSP PROCESSING: Six dedicated internal SHARC chips offload heavy analog modeling tasks from your host computer’s CPU.
FLAGSHIP GEN 2 MONITORING PLAYBACK: Overhauled D/A monitor conversion path hits an ultra-wide 133 dB of dynamic range with a -129 dB THD+N floor.
16x16 BALANCED LINE I/O: Complete analog line density across four professional DB25 connections, ideal for patchbays and consoles.
SELECTABLE +24 dBu HEADROOM: Match voltage levels with high-end pro audio equipment and analog mixing desks via software toggle.
9.1.6 IMMERSIVE AUDIO SUPPORT: Native monitoring control and routing for multi-channel spatial formats, including Dolby Atmos and Auro-3D.
APOLLO MONITOR CORRECTION Support: Runs Sonarworks® SoundID Reference speaker and headphone profiles directly on internal DSP with near-zero latency.
ESSENTIALS+ PLUG-IN SUITE: Includes over 20+ premium UAD titles, featuring world-famous Teletronix compressors, Pultec EQs, and Auto-Tune.
LOCK-TIGHT LUNA INTEGRATION: Seamless hardware-software binding with UA’s LUNA Recording System for an organic, single-window analog-style workflow.
THUNDERBOLT 3 CONNECTIVITY: Two Thunderbolt 3 ports provide rock-solid driver stability and simple daisy-chaining for up to 4 Apollo interfaces.
| Feature | Official Specification |
| Interface Form Factor | Flagship 19" 1U Rackmount Multi-Channel Audio Interface & Monitor Hub |
| Simultaneous I/O Channels | 18 Inputs x 20 Outputs (Analog: 16 In / 18 Out, Digital: 2 In / 2 Out) |
| Host Connectivity | 2 x Thunderbolt 3 Ports (Type-C Protocol supporting up to 4 Apollo units) |
| Audio Resolution | Mastering-Grade 24-Bit / 192 kHz Gen 2 A/D and D/A Conversion |
| Onboard Hardware DSP | UAD-2 HEXA Core Processing (6 x High-Performance SHARC DSP Chips) |
| Analog Inputs | 16 x 1/4" Balanced Line Inputs via 2 x DB25 Female Connectors (Lines 1-8 and 9-16) |
| Analog Outputs | 16 x 1/4" Balanced Line Outputs via 2 x DB25 Female Connectors, 2 x XLR Monitor Out (L/R) |
| Digital I/O | 1 x XLR AES/EBU Stereo Input, 1 x XLR AES/EBU Stereo Output |
| System Headroom Settings | Switchable Operating Reference Levels: +20 dBu or +24 dBu (Per-Channel Configuration) |
| System Synchronization | 1 x BNC Word Clock Input, 1 x BNC Word Clock Output (75-ohm termination toggle) |
| Dynamic Range (Monitor D/A) | 133 dB (Flagship Gen 2 Monitor Conversion Architecture) |
| Total Harmonic Distortion (Monitor) | -129 dB THD+N (Vanishingly low distortion floor across main outputs) |
| Dynamic Range (Line Inputs) | 124 dB (A-Weighted) |
| Dynamic Range (Line Outputs) | 127 dB (A-Weighted) |
| Immersive Audio Array | Configurable monitor controls up to 9.1.6 Surround Matrix with Bass Management |
| OS Requirements | macOS 11 Big Sur or later / Windows 10 & 11 (64-Bit System Editions) |
| Power Requirements | 12V DC Center-Positive External High-Current Power Supply Unit (Included) |
| Dimensions (W x D x H) | 19" x 12.0" x 1.74" / 48.3 cm x 30.5 cm x 4.42 cm (Standard 1U Rack Space) |
| Net Unit Weight | 8.6 lbs / 3.90 kg |
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