Symphony I/O Mk II Configurations
2x6 SE | Dante + Pro Tools | HD
2x6 Analog I/O + 8x8 Optical + AES I/O
The Ultimate Symphony Sound

2×6 SE offers the highest quality AD/DA conversion of the Symphony series
Apogee Symphony I/O Mk II 2×6 Special Edition offers the highest quality AD/DA conversion of the Symphony series. Designed specifically for mastering engineers whose critical work demands ultimate sonic performance, 2×6 SE takes advantage of the latest advancements in digital and analog audio technology to offer inputs with 124 dB (A) of dynamic range, THD+N of -116dB and outputs with 131dB (A) dynamic range and an astonishingly low THD+N of -118dB. We dare you to compare these specifications to our competitors – 2×6 SE’s combined specs outperform just about any AD/DA converter available today.

“These are real measurements, taken with our lab test equipment and not what I call ‘data sheet’ specs. My goal is to improve the overall design of the circuit and achieve greater real-world performance than what the component manufacturer claims on the data sheet. The new 2×6 card will outperform pretty much anything in the market…at any price”
— Lucas Van Der Mee, Apogee’s Senior Hardware Engineer
Inputs
- Analog IN: 2 balanced inputs on 2 female XLR connectors
- AES IN: Stereo input on 1 female XLR connector
- Optical IN: Supports ADAT, SMUX & S/PDIF
- ADAT: 8 channels 44.1-48 kHz on 1 Toslink connector
- SMUX: 4 channels 88.2-96 kHz on 1 Toslink connector
- S/PDIF: 2 channels, up to 96 kHz on 1 Toslink connector
- S/PDIF Coax IN: 2 channels, up to 192 kHz on 1 RCA connector
A/D
- THD+N of -116dB @23dBu (0.00016%) unweighted
- Dynamic range: 124 dB (A) of dynamic range
- Maximum input levels:
- +4dB setting: +24dBu
- -10dB setting: +6dBV
- Frequency response at 44.1kHz: 1-20,000 Hz (+/- 0.05dB)
- Input impedance: 10K
Outputs
- Analog OUT: 6 balanced outputs on 1 DSUB 25-pin connector
- AES OUT: Stereo output on 1 male XLR connector
- Optical OUT: Supports ADAT, SMUX & S/PDIF
- ADAT: 8 channels 44.1-48 kHz on 1 Toslink connector
- SMUX: 4 channels 88.2-96 kHz on 1 Toslink connector
- S/PDIF: 2 channels, up to 96 kHz on 1 Toslink connector
- S/PDIF Coax OUT: 2 channels, up to 192 kHz on 1 RCA connector
D/A
- THD+N of -118dB @ 22dBu (0.00013%) unweighted
- Dynamic range: 131dB (A) dynamic range
- Max output levels – ∞ to +24dBu
- Frequency response at 44.1 kHz: dc to 20kHz (+/- 0.05dB)
- Output impedance: 25 Ohm
Connection:
Ethernet + Pro Tools | HD
Performance:
44.1kHz – 192kHz
Computer:
Mac or PC
Control:
Apogee Network Control Software (Free download from Apogee) or Front panel touchscreen