Symphony I/O Mk II is a multi-channel audio interface featuring Apogee's newest flagship AD/DA conversion, modular I/O (up to 32 inputs and outputs), intuitive touchscreen display and optional world-class microphone preamps. Designed to deliver professional sound quality for audio recording, mixing and mastering, Symphony I/O Mk II is the ultimate music production centerpiece for any modern studio.

Input and Output Flexibility
There is a Symphony I/O Mk II solution for everyone; the home studio, project studio, commercial recording studio and scoring stage. Choose from four base I/O configurations, 2x6, 8x8, 16x16, or 8x8 with 8 mic preamps and easily expand as your studio grows. With two module slots and the capacity for up to 32 inputs and outputs of A/D & D/A conversion per unit, Symphony I/O Mk II offers the best per-channel value of any interface in its category.

Legendary Sound Quality
Apogee engineers have made it their passion to improve every new flagship product by using the latest in electrical components and designing optimized circuitry that often exceeds the expectations of the component manufacturer. This is the Apogee Advantage. Symphony I/O Mk II is the culmination of this 30 year commitment and raises the bar on all Apogee products before it with even better audio clarity and sonic transparency. In fact, when equipped with either the new 8x8 or 16x16 Mk II I/O modules, Symphony I/O Mk II outperforms all other multi-channel audio interfaces available for Pro Tools HD or Thunderbolt based systems, making it the flagship audio interface for the entire professional audio industry and the obvious choice for countless GRAMMY winning artists, producers, songwriters and engineers.

INPUTS
Analog IN: 8 balanced inputs on 1 DSUB 25-pin connector
AES-EBU IN: 8 inputs on 1 DSUB 25-pin connector (192k single wide compatible)
Optical IN: Supports ADAT, SMUX & S/PDIF

ADAT: 8 channels 44.1-48 kHz

SMUX: 8 channels 88.2-96 kHz

S/PDIF: 2 channels, up to 96 kHz

Coax IN: 2 channels of S/PDIF, up to 192 kHz

OUTPUTS
Analog OUT: 8 balanced outputs on 1 DSUB 25-pin connector
AES-EBU OUT: 8 outputs on 1 DSUB 25-pin connector (192k single wide compatible)
Optical OUT: Supports ADAT, SMUX & S/PDIF

ADAT: 8 channels 44.1-48 kHz

SMUX: 8 channels 88.2-96 kHz

S/PDIF: 2 channels, up to 96 kHz

Coax OUT: 2 channels of S/PDIF, up to 192 kHz

Best AD/DA conversion of any Thunderbolt? audio interface

Up to 32 channels of modular analog I/O with optional 8 mic preamps

Best per-channel value of any interface in its category

Choice of Thunderbolt, Pro Tools HD (Mac/PC) or Waves SoundGrid connectivity

Ultra-low latency performance

Intuitive touchscreen display and front panel control

Designed in California, Built in the U.S.A.

Analog to Digital

THD+N: -114dB @ 22dBu (0.00020%)

Dynamic range: 122dB A weighted

Maximum input levels: +4dB setting: +24dBu, -10dB setting: +6dBV

Frequency response at 44.1kHz: 1-20,000 Hz (+/- 0.05dB)

Input impedance: 10K

Digital to Analog

THD+N: -117dB @ 21dBu (0.00014%)

Dynamic Range: 129dB A weighted

Max output levels - to +24dBu

Frequency response at 44.1 kHz: dc to 20kHz (+/- 0.05dB)

Output impedance: 25 Ohm

Outputs are balanced through Apogee's proprietary Perfect Symmetry Circuitry (PSC)

Headphone Output

1 stereo 1/4 headphone output on front panel

THD+N: -110dB @19dBu into 600 Ohm (=80mW), -101dB @14dBu into 32 Ohm (=470mW)

Dynamic Range: 121db A weighted

Output: Apogee's proprietary Constant Current Drive? provides smooth frequency response with any headphones

Power

90-240VAC, 50-60Hz, 150W

Operating System

Thunderbolt: Mac OS only 10.9.5 and above

HD: Any Mac or PC running Pro Tools HD 9 or greater

Package Contents

Symphony I/O Mk II Interface

Power Cable

Quick Start Guide

Warranty Booklet

Symphony I/O Mk II Dimensions

Inches: 17.75 (19 with Rack Ears) x 11.5 x 3.5

Centimeters: 45 (48.26 with Rack Ears) x 29.2 x 8.9