Furnished with elite-class 24-bit / 192 kHz conversion akin to the popular Apollo X rackmount interfaces, the Apollo Twin X QUAD gives musicians, producers, songwriters, and audio engineers the appreciable value of crystal-clear, high-resolution recording and mixing with low distortion (-117 dB) and immense dynamic range (127 dB). The interface features two XLR-1/4" mic/line combo inputs and a 1/4" Hi-Z input, 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. Thanks to the switchable low-cut filter, pad, polarity inversion, 48V phantom power, and stereo linking on each analog input, you can efficiently optimize your incoming signals with straightforward buttons on the Apollo Twin X QUAD's face. In addition to the two primary analog inputs, you can record up to eight more channels by connecting external preamps with ADAT or S/PDIF optical outputs to the TOSLINK optical input port on the Apollo Twin X QUAD. The built-in QUAD Core processing allows you to monitor and record audio using classic analog emulations with near-zero latency and no burden on your computer's CPU. The plug-in bundle included with the Heritage Edition empowers you with 25 top-notch plug-ins ranging from vintage compressor and EQ collections 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 plug-in support. The Apollo Twin X QUAD 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 front-panel headphone output, two 1/4" line outputs are available for connection to a second set of monitors. At any point, you can increase the power and capability of the Apollo Twin X QUAD 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 Twin X QUAD. The Thunderbolt 3 port is backward-compatible with Thunderbolt 1 and 2 via a qualified adapter (available separately). Heritage Edition The Heritage Edition features the same Apollo Twin X QUAD interface found in the standard edition but with more plug-ins. The standard Apollo Twin X QUAD includes the Realtime Analog Classics bundle (14 plug-ins), and the Heritage Edition adds 11 more for a total of 25 revered UA-powered plug-ins. The Power of Apollo Track, overdub, and mix with high-resolution AD/DA conversion and DSP-powered plug-ins QUAD Core UAD processing for tracking through models of vintage compressors, EQs, tape machines, mic preamps, and guitar amps with near-zero latency and 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 High-speed Thunderbolt 3 connectivity for Mac and Windows computers (Thunderbolt cable available separately) Convenient desktop form factor with reliable AC powering (external power supply included) Free, industry-leading phone/online technical support from knowledgeable audio engineers I/O for the Studio 10x6 audio interface with two Unison-enabled microphone preamps (via XLR-1/4" combo mic/line inputs), providing emulations of classic analog preamps with near-zero latency One front-panel, Unison-enabled 1/4" Hi-Z input for direct connection of a guitar, bass, or keyboard Stereo 1/4" monitor output and one 1/4" headphone output, each with dedicated level control Two additional 1/4" line-level outputs, may be used for alternate monitor outputs Add up to eight extra input channels via one TOSLINK optical ADAT port (may alternatively be used for stereo S/PDIF) 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 Expand your studio with an Apollo X rackmount unit (available separately), so you can use your Apollo Twin X QUAD as a desktop monitor controller with additional I/O and DSP power Backward-compatible with Thunderbolt 1 and 2 via a qualified adapter (available separately) 25 Powered Plug-Ins Includes Realtime Analog Classics plug-in bundle plus 11 additional plug-ins to complete the compressor, EQ, and preamp collections and provide another reverb (plug-ins support VST, RTAS, Audio Units, and AAX 64-bit for compatibility with all major DAWs): UA 610-A Tube Preamp and EQ (Vintage) UA 610-B Tube Preamp and EQ (Modern) Marshall Plexi Classic Guitar Amp Ampeg SVT-VR Classic Bass Amp UA 1176LN Limiting Amplifier (Legacy) UA 1176SE Limiting Amplifier (Legacy) UA 1176 Classic Limiter Collection (1176LN Rev E, 1176 Rev A, and 1176AE 40th Anniversary Edition) Pultec EQP-1A EQ (Legacy) Pultec MEQ-5 EQ (Legacy) Pultec Passive EQ Collection (EQP-1A, MEQ-5, and HLF-3C) Teletronix LA-2A Leveling Amplifier (Legacy) Teletronix LA-2A Classic Leveler Collection (LA-2A Silver, LA-2A Gray, and LA-2) Raw Distortion 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) Pure Plate Reverb 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 Twin X QUAD 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 using 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 Twin X Quad Specs Form Factor Tabletop Display 5 x Multi-Segment LED Meter Channels of I/O Analog: 2 Inputs / 6 Outputs at 192 kHz Digital: 8 Inputs / 0 Outputs at 48 kHz 4 Inputs / 0 Outputs at 96 kHz 2 Inputs / 0 Outputs at 192 kHz Max Sample Rate/Resolution 192 kHz / 24-Bit Number of Mic Preamps 2 Input Level Adjustment 1 x Knob Solo/Mute Mute per Master Pad -20 dB (Switchable per Channel) High-Pass Filter 75 Hz Expansion Slots None Connectivity Analog Audio I/O 2 x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input 1 x 1/4" TS Unbalanced Hi-Z Input (Front Panel) 2 x 1/4" TRS Balanced/Unbalanced Monitor Output 2 x 1/4" TRS Balanced/Unbalanced Line Output 1 x 1/4" TRS Unbalanced Headphone Output Phantom Power +48 V, Selectable On/Off (Selectable on Individual Inputs) Digital Audio I/O 1 x TOSLINK Optical ADAT / S/PDIF Input (S/MUX4 Support) Host Connection / USB 1 x Thunderbolt/MDP (Thunderbolt 3) USB (Non-Host) None Sync I/O None Network I/O None MIDI I/O None Wireless Connectivity None Memory Card Slot None Performance Frequency Response Mic, Line, Hi-Z Inputs: 20 Hz to 20 kHz ±0.05 dB Line Outputs: 20 Hz to 20 kHz ±0.05 dB Headphone, Monitor Outputs: 20 Hz to 20 kHz ±0.1 dB Gain/Trim Range Mic/Line/Hi-Z Inputs: +10 dB to +65 dB Max Input Level Mic Inputs: 25.6 dBu (with Pad) Hi-Z Inputs: 12.2 dBu (Min Gain) Line Inputs: 20.2 dBu (Min Gain) Max Output Level Line/Monitor Outputs: 20.2 dBu Headphone Output Power 96 mW into 300 Ohms (Max) Impedance Mic Inputs: 5.5 Kilohms Hi-Z Inputs: 1 Megohm Line Inputs: 10 Kilohms Line Outputs: 100 Ohms Monitor Outputs: 100 Ohms Dynamic Range Mic Inputs: 123 dBA Hi-Z Inputs: 121 dBA Line Inputs: 122 dBA Line Outputs: 126 dBA Monitor Outputs: 127 dBA Headphone Outputs: 124 dBA THD+N Mic Inputs: -115 dB (1 kHz, at -1 dBFS) Hi-Z Inputs: -108 dB (1 kHz, at -1 dBFS) Line Inputs: -114 dB (1 kHz, at -1 dBFS) Line Outputs: -117 dB (1 kHz, at -1 dBFS) Monitor Outputs: -117 dB Headphone Outputs: -98 dB (1 kHz, at -1 dBFS) Digital Audio Sample Rates Up to 192 kHz (AD/DA Conversion) 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 Compatibility OS Compatibility macOS 10.12 / 10.13 / 10.14 / 10.15 Windows 10 (64-Bit Only) 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 3 Cable (Not Included) Internet Connection Required for Registration, 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, Center-Positive (Included) Power Consumption 15 W (Maximum) Physical Anti-Theft Features Kensington Security Slot Operating Temperature 32 to 104°F / 0 to 40°C Dimensions 6.31 x 6.2 x 2.6" / 16.03 x 15.7 x 6.6 cm Weight 2.4 lb / 1.1 kg (Without Accessories) Packaging Info Package Weight 4.32 lb Box Dimensions (LxWxH) 8 x 7.9 x 5.6"