Zoom U-24 Handy Audio Interface

Features Multi-channel and stereo USB audio interface for PC/Mac/iPhone/iPad Connect to iPhone/iPad with Apple iPad Camera Connection Kit or Lightning-to-USB Camera Adapter (sold separately), plus 2 AA batteries or optional AC adapter for power Two mic/line inputs with high performance mic preamps High quality recording and playback at resolutions up to 24-bit/96 kHz Approximately 4 hours of operation with 2 AA alkaline batteries Includes download code for Ableton Live 9 Lite Two-channel simultaneous inputs Hi-Z support (input 1) Zero-latency direct monitoring Two TRS phone jack outputs Dedicated RCA L/R and headphone outputs MIDI I/O Gain control knobs for each input +48V phantom power for inputs 1 and 2 Accepts standard AA alkaline or NiMH rechargeable batteries Specifications ANALOG IN: INPUT 1/2 Connector: TRS/XLR combo jacks (XLR: 2 hot, TRS: TIP hot) Input gain: 0 – 43 dB Input impedance: 2.6 k O (MIC IN) 1.1 M O (when Hi-Z ON) Maximum input level: +2.7 dBu (MIC IN) /+20.7 dBu (TRS IN) Phantom power: +48V ANALOG OUT: MAIN OUT L/R Connector: TRS phone jacks (unbalanced) Maximum output level: +10 dBu (at 0 dBFS) Output impedance: 330 O ANALOG OUT: LINE OUT 1/2 Connector: RCA (coaxial) Maximum output level: +8 dBu (at 0 dBFS) Output impedance: 1k O ANALOG OUT: PHONES Connector: Standard stereo phone jack 30 mW x 2 (into 32 O load) Maximum output level: +10 dBu (at 0 dBFS) Output impedance: 33 O OTHERS Frequency characteristics: At 44.1 kHz: -1.0 dB: 20 Hz - 20 kHz At 96 kHz: -3.5 dB: 20 Hz - 40 kHz Input conversion noise:  Measured EIN: -119.5 dB (IHF-A) at 43 dB, 150 O input Number of audio recording and playback channels: Recording: 2 channels Playback: 4 channels Sampling frequencies: 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz Bit depth: 24-bit Interface: USB 2.0 MIDI IN/OUT: 5-pin DIN jack Power Source: USB bus power (Type B) Zoom AD-17 (Micro-B) DC 5V power supply (Micro-B) 2 AA batteries (4 hours continuous operation with phantom power off) Power consumption: 5W maximum Dimensions: 191.8 mm (D) x 92.3 mm (W) x 42.7 mm (H) Weight (main unit only): 285 g *0dBu=0.775Vrms U-24 SYSTEM REQUIREMENTS Windows: : OS: Windows® 7 SP1 or later / 8.1 / 10 (32bit/64bit) CPU: Intel® Core i3 or faster* USB: USB 3.0/USB 2.0** * Operation is not guaranteed with CPUs from Atom, Celeron or Pentium series or CPUs made by AMD.** Only USB host controllers with Intel Chipsets are supported. Operation is not guaranteed when used with USB hubs or expansion cards. Mac: OS: Mac® OS X 10.9.5 or later / 10.10 / 10.11 / 10.12 / 10.13 / 10.14 CPU: Intel® Core i3 or faster USB: USB 3.0/USB 2.0* * Operation is not guaranteed when used with USB hubs or expansion cards. iPhone/iPad: OS: iOS 7.1 or later * Requires 2 AA batteries or optional AC adapter for power, plus an Apple iPad Camera Connection Kit or Lightning-to-USB Camera Adapter.