The Audiobox iTwo by PreSonus is a USB 2.0 bus powered audio interface that combines its rugged lightweight chassis with class A mic preamps and 24 bit audio as well as compatibility with Apples iPad and Mac or PC to bring you a high quality audio interface at a very affordable price. Please note this item was returned unwanted from a customer. The original boxing is scuffed and all the seals are broken. Otherwise the unit itself looks and operates as new and has only been used a couple of times. This is a great opportunity to buy a fully functioning product at a discounted price supplied with a two year warranty. PreSonuss Audiobox iTwo features a left and right 1/4″ balanced audio output headphone out and an internal analog mixer controlled by the Mix knob that offers zero latency monitoring. The Audiobox iTwo also offers 2 inputs that can be microphone instrument or line inputs making this audio interface highly versatile and perfect for any studio work. Also included is the Mac/PC DAW software Studio One Artist and you can make use of the free Capture Duo app to record via your iPad. Studio One Artist Studio One Artist is an award winning recording and music production software that is included with the Audiobox iOne and is an easy to use production tool that has a simple and easy to use layout that provides you with a vast array of options straight out the box that enables you to create quality tracks instantly. Studio One Artist is filled with professional plug-ins virtual instruments sounds and loops. With even more options available to purchase if necessary. Capture Duo App The Capture Duo App allows you to record to your iPad with the Presonus Audiobox iTwo USB Audio Interface. This app provides you with 2 tracks to record with and the ability to send your tracks to a Mac or PC wirelessly. It is also compatible with any other iPad audio interface that supports Core Audio for iPad. Again if you find yourself needing more there is a low-cost 32-tracks version of Capture available from iTunes. Features 8 independent channels each with: Two-in two-out audio interface Record with Mac PC or iPad Class A mic preamplifiers and +48V phantom power 24-bit resolution; up to 96 kHz sampling rate Zero latency monitoring Lightweight and rugged design USB bus-powered Specifications Manufacturer: Presonus Model: Audiobox iTwo USB Audio Interface Microphone Preamp Type: XLR female balanced Frequency Response (±3.0 dB): 10 Hz to 40 kHz Input Impedance (Balanced) : 1200O THD+N (unwtd 1 kHz @ +4 dBu Output Unity Gain): < 0.008 S/N Ratio (Unity Gain Ref. = +4 dBu 20 Hz to 22 kHz): > 95 dB Gain Control Range (± 1 dB): 0 dB to 52 dB Max Input Level (Unity Gain 1 kHz @ 0.5 THD+N): +10 dBu Phantom Power (±2 VDC): +48 VDC Line Input Type: 1/4″ TRS female balanced Input Impedance: 10 kO Instrument Input Type: 1/4″ TS female unbalanced Input Impedance: 1 MO Line Outputs Type: 1/4″ TRS female balanced Output Impedance 51O Headphone Output Type: 1/4″ TRS active stereo Maximum Output: 60 mW/ch. @ 60O Load Frequency Response (±1.0 dB): 20 Hz – 30 kHz MIDI I/O Type: Dual 5-pin female DIN Digital Audio ADC Dynamic Range (A-wtd 48 kHz Sample Rate): 105 dB DAC Dynamic Range (A-wtd 48 kHz Sample Rate): 105 dB Bit Depth: 24 Reference Level for 0 dBFS: +10 dBu Internal Sample Frequency Selections (kHz): 44.1 48 88.2 96 Power: USB bus-powered Physical Height: 1.71″ (43.5 mm) Depth: 5.31″ (135 mm) Width: 7.56″(192 mm) Weight: 1.35 lbs (0.62 kg) COMPUTER SYSTEM REQUIREMENTS Windows Windows 7 x64/x86 SP1 Windows 8 x64/x86 or later Intel Core Duo processor (Intel Core i3 or better recommended) 4 GB RAM (8 GB or more recommended) Mac Mac OS X 10.7.5 or later Intel Core Duo processor (Intel Core i3 or better recommended) 4 GB RAM (8 GB or more recommended) Windows and Mac Systems USB 2.0 Port Internet connection for registration and download of included software Internal or external 7200 RPM storage drive highly recommended Monitor with at least 1280×800 resolution Apple iPad iPad Air iPad mini with Retina display iPad (4th generation) iPad mini iPad (3rd generation) iPad 2 iOS 7.0.1 or higher