Custom Low Latency DriverEnables 1.1ms round trip latency with a 96 kHz 32 buffer setting32-Bit Signal PathProvides improved headroom and dynamic range with reduced noiseDirect Memory Access EngineReads and writes data directly to Mac memory independent of the Mac CPU for lower latency, higher signal resolution, and more available CPU power for plug-insDual Thunderbolt PortsExpands system functionality by allowing multiple high bandwidth peripherals such as hard drive arrays, video capture devices, and Thunderbolt monitors up to 4k in resolutionESS Sabre32 DAC TechnologyUses 32-bit filter processing for significantly lower noise, distortion and artifactsTime Domain Jitter EliminationRemoves clock inconsistencies from the incoming data so the converted analog outputs preserves the clarity and soundstage details of the original sourceDynamically Optimized Mic PreampsUtilizes Apogee's Advanced Stepped Gain architecture to provide a gain range of 0 to 75 dB with superior bandwidth and minimal distortionSoft Limit Protection From Digital OversUses a FET-based analog design to prevent digital clipping by rounding off transient peaks before they hit the analog-to-digital converter and provide an analog-tape-like warmth to the soundCustom Power RegulationUses Apogee-designed power regulators for ultra-low-noise operationAnalog InputsFeatures four combo (1/4" and XLR) inputs as well as four XLR inputs for connecting up to eight microphones or a combination of instruments, external mic preamps, and other analog audio devicesLine Level Bypass RelayAllows the microphone preamplifier to be bypassed to preserve the purest unity gain signal path for line level sourcesAnalog OutputsIncludes two balanced monitor outputs on 1/4" TRS connectors and eight balanced line outputs on one D-Sub 25-pin connectorHeadphone OutputsProvides two independently controlled front panel headphone outputs for driving even high impedance headphones with ultra low distortion throughout the level rangeGuitar I/OEnables direct connection of guitars and other instruments through two Class A JFET circuits to produce the feel and tone of vintage tube amps and the tone and high frequency response of connected instrumentsDual Mode Re-AmpingAllows you to record a direct guitar signal while listening through an amplifier, then play the recorded signal back through the amp to refine settings and microphone placement as well as connect external effect stomp boxesBuilt-In MicrophoneAllows you to capture ideas, archive sessions, record a crushed room sound, and perform talkback functionsAnalog InsertsEnables integration of external hardware such as compressors or EQs in mono or a stereo pairDigital I/OProvides up to 18 channels of digital I/O in ADAT, SMUX, S/PDIF optical, and S/PDIF coaxial formats to expand the system with hardware synthesizers and digital effectsWordclockAllows for syncing to other digital audio gear and using the interfaces clock as a masterDual High Resolution DisplaysShows visual feedback for recording and monitoring including levels, grouping, polarity, muting, phantom power, and soft limit on all inputs and outputsLED-Illuminated Input Control Selection ButtonsSelects a desired input for recording and monitoring functions such as input type, +48V phantom power, Soft Limit, grouping, polarity invert, and hi-pass filterMonitor/Output ControlsAllows for choosing between two 1/4" monitor outputs, one of three stereo speaker sets , or a 5.1 surround sound systemAssignable Buttons A, B, C, and DAllows assignment from a drop-down menu for functions such as "engage talkback," "mute outputs," "dim outputs," "sum to mono," "clear meters," or "engage speaker set"TalkbackAllows for either external mic or internal mic to communicate with recording musicians over both headphone and line outputsSpeaker Set SelectionSwitches between up to 3 pairs of speakers, allowing the interface to function as a monitor controllerApogee Maestro AppAccesses all functions and settings from a single software window for customized workflows