Furnished with elite-class 24-bit / 192 kHz conversion, rivaling dedicated high-end converters, the Apollo x6 gives music creators, record producers, and postproduction engineers the appreciable value of crystal-clear high-resolution recording and mixing with ultralow distortion (-119 dB) and immense dynamic range (129 dB). Additionally, its switchable headroom setting facilitates proper level-matching with a variety of audio equipment.

The interface features two XLR mic inputs and two 1/4" Hi-Z inputs, all with Unison integration for precise UAD emulations of classic analog preamps—impart vintage character of your choosing on microphone and instrument recordings while bypassing the unpredictable nature of old equipment. Plus, the six 1/4" line-level inputs on the rear panel can be used to patch in virtually any outboard mic preamps or direct outputs from a console.

Thanks to the switchable low-cut filter, pad, polarity inversion, 48V phantom power, and stereo linking on each preamp, you can efficiently optimize your incoming signals with straightforward buttons on the Apollo x6's face. In addition to the six primary analog inputs, you can record up to 10 more channels by connecting ADAT- and S/PDIF-equipped external preamps to the TOSLINK optical and S/PDIF coaxial input ports on the Apollo x6.

ADAT optical and S/PDIF coaxial outputs are also featured on the Apollo x6, allowing it to route up to 10 channels from your DAW to a digital mixer, headphone distribution system, or external D/A converter. Utilize the BNC wordclock input and output jacks to accurately clock sync to house or lock other digital equipment to the Apollo.

The built-in HEXA Core processing utilizes six DSP chips, granting 50% more DSP than earlier Apollos and the ability to monitor and record audio using classic analog emulations with near-zero latency and no burden on your computer's CPU. The included Realtime Analog Classics Plus plug-in bundle empowers you with 16 top-notch plug-ins ranging from compressors and EQs to virtual guitar/bass amps and time-based processors. The included Console application provides control and recall of all interface and UAD plug-in settings including channel-strip presets, drag-and-drop functionality, and dynamically resizable windows.

Mac and Windows drivers ensure compatibility with all major DAWs including Pro Tools, Logic Pro, Cubase, Ableton Live, and more. The interface also integrates seamlessly with LUNA, Universal Audio's free Mac-based, single-window recording system with unlimited track counts and full Audio Units support.

The Apollo x6 offers a comprehensive monitor section with talkback functionality and dedicated front-panel controls for Alt Speakers, Dim, and Mono functions, as well as input and output metering capabilities. In addition to the dedicated stereo monitor feed and two front-panel headphone outputs (great for handling multiple cue mixes), six 1/4" line outputs are available for connection to a second set of monitors and outboard processors. In fact, the Apollo x6 is capable of acting as a 5.1 surround sound monitor controller.

At any point, you can increase the power and capability of the Apollo x6 through integration of qualified Universal Audio hardware. Up to four Apollo interfaces and six total UAD-2 devices can be combined, allowing Thunderbolt users the ability to expand their I/O and DSP without abandoning the Apollo x6. The two Thunderbolt 3 ports are backward compatible with Thunderbolt 1 and 2 via a qualified adapter (available separately).

The Power of Apollo X
Track, overdub, and mix with elite-class AD/DA conversion and DSP-powered plug-ins
Dual-Crystal clocking features dedicated crystals for 44.1 / 88.2 / 176.4 kHz and 48 / 96 / 192 kHz sample rates, resulting in stunningly low jitter (under 10 picoseconds) for pure, artifact-free recordings and solid stereo imaging
HEXA Core UAD processing for tracking through models of vintage compressors, EQs, tape machines, mic preamps, and guitar amps with near-zero latency and 50% more DSP than earlier Apollos, all with no burden on your computer's CPU
Unison technology nails the tone of sought-after tube and solid-state mic pres including their input impedance, gain-stage sweet spots, and the component-level circuit behaviors of the original hardware
Two high-speed Thunderbolt 3 ports for connectivity with Mac and Windows computers (Thunderbolt cable available separately)
1 RU rackmount form factor with reliable AC powering (secure locking external power supply included)
Free, industry-leading phone/online technical support from knowledgeable audio engineers
I/O for the Expanding Studio
16x22 audio interface with two Unison-enabled microphone preamps, providing emulations of classic analog preamps with near-zero latency
Two front-panel, Unison-enabled 1/4" Hi-Z inputs for direct connection of guitars, basses, or keyboards
6x6 balanced analog line-level I/O via 1/4" jacks
Stereo 1/4" monitor output and two independent 1/4" headphone outputs, each with adjustable level
Additional six 1/4" line-level outputs may be used for feeding alternate monitor outputs, analog outboard processors, or a 5.1 surround sound speaker setup
Selectable operating level of +20 dBu or +24 dBu for out-of-the-box compatibility with professional mixing consoles and other high-end pro audio equipment
Four TOSLINK optical ports provide up to eight channels of ADAT I/O (supports SMUX) for integrating external converters, ADAT-equipped mic preamps, and headphone distribution systems
RCA coaxial ports enable recording and outputting S/PDIF stereo digital signal
BNC wordclock I/O with selectable 75-ohm termination, crucial for accurate synchronization with other digital equipment
Pro-Level Workflow
Built-in monitor controller with monitor remote functions and mono, mute, dim, and alt monitor controls
Integrated talkback and cues for easy communication and slate functionality
Comprehensive front-panel metering and fast, intuitive controls, no menu-diving required
Expandable I/O and DSP
Cascade up to four Thunderbolt-equipped Apollo interfaces and six UAD-2 Thunderbolt devices for expanded I/O and DSP
Backward compatible with Thunderbolt 1 and 2 via a qualified adapter (available separately)
16 Powered Plug-Ins
Includes Realtime Analog Classics Plus plug-in bundle, which supports VST, RTAS, Audio Units, and AAX 64-bit for compatibility with all major DAWs
UA 610-B Tube Preamp and EQ
Marshall Plexi Classic Guitar Amp
Ampeg SVT-VR Classic Bass Amp
UA 1176LN Limiting Amplifier (Legacy)
UA 1176SE Limiting Amplifier (Legacy)
Pultec EQP-1A EQ (Legacy)
Pultec Pro EQ (Legacy)
Teletronix LA-2A Leveling Amplifier (Legacy)
Raw Distortion
Fairchild 670 Compressor (Legacy)
Precision Enhancer Hz
Precision Channel Strip (Precision Mix Rack Collection)
Precision Reflection Engine (Precision Mix Rack Collection)
Precision Delay Mod (Precision Mix Rack Collection)
Precision Delay Mod L (Precision Mix Rack Collection)
RealVerb Pro Custom Room Modeler
Integration with LUNA Recording System for Mac
Works with all major DAWs including Logic Pro, Ableton Live, Pro Tools, and more
Apollo x6 becomes a fully integrated recording system with LUNA, a powerful free recording application for Mac from Universal Audio
Bolstered by Accelerated Realtime Monitoring, LUNA lets you track and mix in an intuitive single-window workflow with unlimited track counts, full Audio Units plug-in support, and access to a suite of exclusive LUNA instruments and extensions such as Studer Multitrack Tape and Neve Summing

Universal Audio Apollo X6 Specs
Form Factor Rackmount
Display 10 x Multi-Segment LED Meter
Channels of I/O Analog:
6 Inputs / 12 Outputs at 192 kHz
Digital:
10 Inputs / 10 Outputs at 96 kHz
Maximum Sampling Rate 192 kHz / 24-Bit
Number of Microphone Preamps 2 Preamps
Input Level Adjustment 1 x Knob
Solo/Mute Mute per Master
Pad -20 dB (Switchable per Channel)
High-Pass Filter 75 Hz, 12 dB/Octave
Expansion Slots None
Connectivity
Analog Audio I/O 2 x XLR 3-Pin Balanced Mic Input
2 x 1/4" TS Unbalanced Hi-Z Input (Front Panel)
6 x 1/4" TRS Balanced Line Input
2 x 1/4" TRS Balanced Monitor Output
6 x 1/4" TRS Balanced Line Output
2 x 1/4" TRS Unbalanced Headphone Output
Phantom Power +48 V, Selectable On/Off (Selectable on Individual Inputs)
Digital Audio I/O 2 x TOSLINK Optical ADAT Input (S/MUX4 Support)
2 x TOSLINK Optical ADAT Output (S/MUX4 Support)
1 x RCA Coaxial S/PDIF Input
1 x RCA Coaxial S/PDIF Output
Host Connection / USB 1 x USB Type-C (Thunderbolt 3)
USB (Non-Host) None
Sync I/O 1 x BNC Word Clock Input
1 x BNC Word Clock Output
Network I/O None
MIDI I/O None
Wireless Connectivity None
Memory Card Slot None
Performance
Frequency Response Mic Inputs:
20 Hz to 20 kHz ±0.05 dB
Hi-Z Inputs:
20 Hz to 20 kHz ±0.04 dB
Line Inputs:
20 Hz to 20 kHz ±0.05 dB
Monitor Outputs:
20 Hz to 20 kHz ±0.06 dB
Line Outputs:
20 Hz to 20 kHz ±0.07 dB
Headphone Outputs:
20 Hz to 20 kHz ±0.05 dB
Gain/Trim Range Inputs:
+10 to +65 dB
Maximum Input Level Mic Inputs:
+26 dBu (with Pad)
Hi-Z Inputs:
+12.4 dBu
Line Inputs:
+24 dBu (with Pad)
Maximum Output Level Line/Monitor Outputs:
+24 dBu
Headphone Output Power 150 mW into 300 Ohms
Impedance Hi-Z Inputs:
1 Megohm
Line Inputs:
10 Kilohms
Line Outputs:
100 Ohms
Mic Inputs:
5.5 Kilohms
Monitor Outputs:
100 Ohms
Word Clock :
75 Ohms
Dynamic Range Mic Inputs:
122 dBA
Hi-Z Inputs:
121 dBA
Line Inputs:
123 dBA
Monitor Outputs:
129 dBA
Line Outputs:
127 dBA
Headphone Outputs:
125 dBA
THD+N Mic Inputs:
-114 dB / 0.0002% (1 kHz)
Hi-Z Inputs:
-111 dB / 0.00028% (1 kHz)
Line Inputs:
-113 dB / 0.00022% (1 kHz)
Monitor Outputs:
-118 dB / 0.00012% (1 kHz, at -1 dBFS)
Line Outputs:
-119 dB / 0.00011% (1 kHz, at -1 dBFS)
Headphone Outputs:
-102 dB / 0.0008% (1 kHz, at -1 dBFS)
Digital Audio
Sample Rates Up to 192 kHz
Sample Rate Conversion None
Bit Depths 24-Bit (AD/DA Conversion)
Latency 1.1 ms at 96 kHz (Input to Output)
Sync Sources ADAT, Internal, S/PDIF, Word Clock
Clocking Word Clock:
Input Termination: 75 Ohms (Switchable)
Lock Range: 44.1 to 192 kHz ±4% of Sample Rate
Compatibility
Included Software LUNA Mac Only
Compatible Software (Not Included) Any Core Audio (Mac) Compliant Software
Supported Drivers/API & Plug-Ins Proprietary
Processor Requirement Intel Core i7
Storage Requirements 6 GB
Mobile Device Compatibility None
Required Hardware Available Thunderbolt 3 Port
Thunderbolt Cable (Not Included)
Internet Connection Required for Registration and Software/Driver Download
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 (Included)
Power Consumption 30 W (Typical)
72 W (Maximum)
Physical
Rackmount Size 1 RU
Operating Temperature 32 to 104°F / 0 to 40°C
Dimensions 19 x 13.5 x 1.8" / 48.3 x 34.3 x 4.6 cm (Including Controls and Protrusions)
Weight 9.0 lb / 4.1 kg
Packaging Info
Package Weight 16.45 lb
Box Dimensions (LxWxH) 23 x 16.5 x 6.8"