Zoom U-44

* Multi-channel and stereo USB audio interface for PC/Mac
* Connect to 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
* Compatible with Zoom interchangeable input capsules via 10-pin connector
* Standalone AD/DA conversion
* Functions as a two-channel mic preamp with analog and digital outputs
* Approximately 4 hours of operation with 2 AA alkaline batteries
* Includes download code for Ableton Live 9 Lite
* Four-channel simultaneous inputs
* Hi-Z support (input 1)
* Zero-latency direct monitoring
* Three TRS phone jack outputs
* Dedicated RCA L/R and headphone outputs
* MIDI I/O
* S/PDIF optical/coaxial input and output
* Gain control knobs for each input
* +48V phantom power for inputs 1 and 2
* Accepts standard AA alkaline or NiMH rechargeable batteries

What comes with the U-44*:
* Operation manual
* Ableton Live 9 Lite software download code
* USB Cable


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 Ω (MIC IN) 1.1 M Ω (when Hi-Z ON)
* Maximum input level: +2.7 dBu (MIC IN) /+20.7 dBu (TRS IN)
* Phantom power: +48V
ANALOG IN: Mic In
* Supported Zoom Input Capsules: XYH-6, MSH-6, SGH-6, EXH-6, SSH-6, XYH-5
ANALOG OUT: Main Out L/R
* Connector: TRS phone jacks (unbalanced)
* Maximum output level: +10 dBu (at 0 dBFS)
* Output impedance: 330 Ω
ANALOG OUT: Line Out 1/2
* Connector: RCA (coaxial)
* Maximum output level: +8 dBu (at 0 dBFS)
* Output impedance: 1kΩ
ANALOG OUT: Phones
* Connector: Standard stereo phone jack 30 mW x 2 (into 32 Ω load)
* Maximum output level: +10 dBu (at 0 dBFS)
* Output impedance: 33 Ω
DIGITAL IN/OUT: S/PDIF Optical
* Connector: TOSLINK
* Supported sampling frequencies: 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz
DIGITAL IN/OUT: S/PDIF Coaxial
* Connector: RCA (coaxial)
* Supported sampling frequencies: 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz
* Frequency characteristics: 
 At 44.1 kHz: ±1.5 dB: 20 Hz - 20 kHz
 At 96 kHz: ±2 dB: 20 Hz - 40 kHz
* Input conversion noise:
* Measured EIN: -119.5 dB (IHF-A) at 43 dB, 150 Ω input
* Number of audio recording and playback channels:
 Recording: 4 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: 198.8 mm (D) x 92.3 mm (W) x 42.7 mm (H)
* Weight (main unit only): 310 g *0dBu=0.775Vrms