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Ideal for producers and engineers running outboard gear in pro studios, the Universal Audio Apollo x6 Gen 2 with Essentials+ Bundle is a 16x22 rackmount Thunderbolt 3 audio interface that offers two Unison mic preamps with Auto-Gain, flagship Gen 2 Elite-Class 24-bit / 192 kHz AD/DA conversion, surround audio up to 5.1, and HEXA Core DSP for real-time UAD plug-in processing over Thunderbolt at near-zero latency—on Mac and Windows computers. The Essentials+ Bundle lets you mix and record live performances with 36 UAD plug-ins including Pultec EQ, Auto-Tune, classic LA-2A and 1176 compressors, and more. You can use Plug-In Scenes to recall settings instantly, even in the middle of a performance.

Easily connect the Apollo x6 Gen 2 to professional studio gear with 6x6 analog line-level I/O via 1/4" TRS connections, two Hi-Z instrument inputs, and two monitor outputs via 1/4" connections. Two ADAT I/O, S/PDIF I/O, and wordclock I/O are also available for connecting to professional digital outboard hardware. You can mix with confidence in any room using Apollo Monitor Correction powered by Sonarworks. Hear all the low-end detail in your mixes using Bass Management to add a subwoofer to your monitor setup. Quickly set up low-latency cues, plug-in scenes, and immersive audio monitoring with the UAD Console app.

Record Through Two Unison Preamps

With Unison technology, Apollo x6 Gen 2 lets you track in real time with the sound of classic EQs and compressors.

From Neve, API, Manley, Fender, and more, you get the same rich analog textures used on the greatest recordings of our time.

Hear the Details Like Never Before

Apollo x6 features UA's highest-resolution A/D and D/A converters, delivering 130 dB of dynamic range, a very low THD of -127 dB, and featuring Dual Crystal Clocking for ultralow jitter at all sample rates.

This enhanced monitoring, when paired with the newest features like Apollo Monitor Correction by Sonarworks, means you'll hear the most accurate representation of your recordings when mixing through monitors or headphones. And there will be no surprises when you listen to your final mix or master on any stereo or surround system.

Auto-Gain: Never Miss The Take

Set input gain across multiple channels in seconds without fear of clipping using the new Auto-Gain feature—available on all microphone / line / Hi-Z preamp inputs.

Effortlessly set gain for recording during an auto training time listening window, without having to worry or take a lot of time to find the perfect recording level.

Bass Management

Add a subwoofer with the new bass management feature for full-range stereo and surround monitoring.

Speaker utilities panel provides trim, mute and solo per speaker output.

Apollo Room Correction

Room Correction runs on a single SHARC DSP core, with UA’s studio-grade, low-latency EQ algorithms, using over 20 precision filters and up to 100 ms of loudspeaker time alignment to transform your monitoring accuracy.

Create SoundID Reference measurements for Apollo Room Correction directly within the SoundID Reference Measure desktop application.

Find Your Flow in the UAD Console App

Just like an analog studio, where a console is the heart of the workflow, Apollo x6 has a powerful digital mixing engine, where you control plug-in routing and monitoring.

With the latest features like Bass Management, Surround Audio up to 5.1, and Plug-In Scenes, it’s easy to find a flow that fits your needs.

A Hybrid System, Made for Your Mission

Combine Apollo x6’s HEXA Core DSP with native processing from your host computer.

Produce large sessions with complex plug-in chains—a powerhouse hybrid workflow that outpaces any native-only recording setup.

Expand Your Studio as You Grow

Apollo x6 effortlessly interfaces with your digital equipment, offering two ADAT I/O, a stereo S/PDIF I/O, and wordclock I/O.

Build your studio by linking up to four Thunderbolt Apollo interfaces with up to 128 channels of premium I/O to your DAW. Control it all from your desktop.

Features

• For Pro Studios with Outboard Gear
• 30+ UAD Plug-Ins, Real-Time Processing
• External Power Supply / Mac, Windows
• 2 Unison Mic Pre, 2 Hi-Z In, 6 Line In
• 2 Headphone Out, 8 Line/Monitor Out
• Gen 2 Elite-Class 24-Bit / 192 kHz AD/DA
• 2 ADAT I/O, S/PDIF I/O, Wordclock I/O
• Auto-Gain Control, Monitor Correction
• Monitoring and Talkback Control
• 5.1 Surround Sound with Bass Management

Specifications

Channels of I/O 16 Inputs / 22 Outputs Built-In DSP Yes Maximum Sampling Rate 192 kHz / 24-Bit Number of Microphone Inputs 2 Built-In Microphone (Talkback) Input Level Adjustment 1x Knob Signal Processing Pad Mic:
-20 dB (Switchable per Channel) Gain/Trim Range Mic/Line/Hi-Z Inputs:
+10 dB to +65 dB Solo/Mute Mute per Master Connectivity Analog Audio I/O 2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input
6x 1/4" TRS Balanced Line Input
2x 1/4" TS Unbalanced Hi-Z Input
6x 1/4" TRS Unbalanced Line Output
2x 1/4" TRS Balanced Monitor Output Phantom Power 48 V, Selectable On/Off Digital Audio I/O 2x Mini-TOSLINK / 3.5 mm Optical ADAT Input (S/MUX Support)
2x Mini-TOSLINK / 3.5 mm Optical ADAT Output (S/MUX Support)
1x RCA Coaxial S/PDIF Input
1x RCA Coaxial S/PDIF Output Host Connection 1x USB-C Host Connection Protocol Thunderbolt 3 USB (Non-Host) 1x USB-C (Device Connection) Sync I/O 1x BNC Word Clock Input
1x BNC Word Clock Output Network I/O No MIDI I/O No Expansion Slots No Wireless No Performance Frequency Response Mic, Line Inputs:
20 Hz to 20 kHz ±0.07 dB
Line Outputs:
20 Hz to 20 kHz ±0.05 dB
Hi-Z Inputs:
20 Hz to 20 kHz ±0.08 dB
Headphone Outputs:
20 Hz to 20 kHz ±0.02 dB
Monitor Outputs:
20 Hz to 20 kHz ±0.02 dB Maximum Input Level Mic Inputs:
26 dBu (Pad On)
Line Inputs:
24 dBu (Reference Level at +4 dBu)
Hi-Z Inputs:
12.6 dBu (at Minimum Gain) Maximum Output Level Line Outputs:
24 dBu (Reference Level at +4 dBu)
12.2 dBu (Reference Level at -10 dBv)
Headphone Outputs:
17.8 dBu (300 Ohms Load, 1 kHz at 16.8 dBu, -1 dBFS)
18.3 dBu (600 Ohms Load, 1 kHz at 17.3 dBu, -1 dBFS))
Monitor Outputs:
24 dBu (Reference Level at +4 dBu)
12.2 dBV (Reference Level at -10 dBv) Headphone Output Power 120 mW into 300 Ohms
67 mW into 600 Ohms Impedance Mic Inputs:
5.4 Kilohms
Line Inputs:
10 Kilohms
Line Outputs:
100 Ohms
Hi-Z Inputs:
1 Megohm
Monitor Outputs:
100 Ohms
Word Clock Inputs:
75 Ohms Dynamic Range Hi-Z Inputs:
122 dBA
Line Inputs:
124 dBA
Mic Inputs:
123 dBA
Headphone Outputs:
126 dBA
Line Outputs:
127 dBA
Monitor Outputs:
130 dBA THD+N Mic Inputs:
-115 dB / 0.00018%
Hi-Z Inputs:
-111 dB / 0.00028%
Line Inputs:
-116 dB / 0.00016%
Line Outputs:
-119 dB / 0.00011%
Monitor Outputs:
-127 dB / 0.000045%
Headphone Outputs:
-117 dB / 0.00014%
-118 dB / 0.00013% Digital Audio Sample Rates Up to 192 kHz Sample Rate Conversion No Bit Depths 24-Bit Latency 1.1 ms at 96 kHz Sync Sources ADAT, Internal, S/PDIF, Word Clock Audio Storage & Playback Media/Memory Card Slot No Compatibility OS Compatibility Windows / macOS Mobile Device Compatibility No Power Power Requirements AC/DC Power Adapter (Included) AC Input Power 100 to 240 VAC, 50 / 60 Hz AC/DC Power Adapter 12 VDC at 6 A Power Consumption 72 W
30 W (Typical) Physical Rackmount Size 1 U (with Included Hardware) Operating Conditions 32 to 104°F / 0 to 40°C  Dimensions 19 x 12 x 1.74" / 48.3 x 30.5 x 4.42 cm (Chassis Only)
19 x 13.5 x 1.74" / 48.3 x 34.3 x 4.42 cm (Including Controls and Protrusions) Weight 8.7 lb / 3.9 kg Packaging Info Package Weight 16.785 lb Box Dimensions (LxWxH) 23.6 x 17.1 x 8"