Apogee Symphony I/O MKII 16x16 PTHD System
Best professional interface for high-end Pro Tools recording studios.
Experience legendary sound quality with the Apogee Symphony I/O MKII 16x16 PTHD System, a powerhouse audio interface featuring Apogee’s premium, flagship-quality converters. This unit delivers 16x16 Analog I/O and 2x2 SPDIF Digital I/O, integrating seamlessly with Pro Tools HD workflows. Its modular design allows for expansion up to 32 inputs and outputs by adding available I/O modules. Engineered for sonic transparency, this system sets a new industry standard for audio clarity. Control is intuitive via the front panel touchscreen and the dedicated Symphony Control software for Mac, offering a highly customizable interface.
$6999.00
More Symphony I/O MKII Options
Owner Satisfaction
4.8
/ 5
Category Rank
1
/ 439
Best Audio Cards & Adapters
Price vs Category Average
+518%
Above average
Analog I/O
1616225
/ balanced inputs and balanced outputs on DSUB -pin connectors
Who it's for
- Professional mastering engineers demanding absolute sonic transparency
- Studio owners requiring seamless Pro Tools HD integration
- Growing studios needing flexible, modular hardware expansion
Who should skip it
- Budget-conscious producers seeking affordable interface solutions
- Independent artists working outside the Avid hardware ecosystem
- Beginners intimidated by complex studio routing and clocking
Performance breakdown
Conversion Fidelity
Industry-leading dynamic range delivers unparalleled sonic transparency for critical studio work.
Pro Tools Integration
Seamlessly bridges hardware and software for high-end professional recording workflows.
System Scalability
Modular architecture allows for easy expansion as your studio needs grow.
Latency Performance
Ultra-low latency ensures a natural feel during complex tracking sessions.
Interface Usability
Front panel touchscreen provides intuitive, tactile control over complex routing tasks.
Build Quality
Robust American engineering designed to withstand years of rigorous studio use.
Key Specs
Analog I/O
16 balanced inputs and 16 balanced outputs on 2 DSUB 25-pin connectors
Digital I/O
2x2 SPDIF on 1 RCA connector
A/D Dynamic Range
124 dB (A)
D/A Dynamic Range
131 dB (A)
A/D Performance THD+N
-116dB @23dBu (0.00016%) unweighted
Sample Rate Range
44.1kHz – 192kHz
Connectivity
Pro Tools HD Core Card, Accel, HD Native, or HDX Card
Host Interface
PCI Express
Features
- Flagship-quality converters for pristine audio
- 16x16 Analog I/O configuration
- Seamless Pro Tools HD integration
- Modular design for future expansion
- Ultra-low latency performance
- Intuitive touchscreen control
- Exceptional dynamic range
- Designed and built in the U.S.A.
What customers say
The Apogee Symphony I/O MKII 16x16 PTHD System is widely considered an industry standard, praised overwhelmingly for its exceptional audio quality and rock solid reliability. Reviewers consistently highlight the pristine, transparent AD/DA conversion, noting its unparalleled depth and accurate stereo imaging. For Pro Tools HD users, the dedicated connectivity ensures seamless integration and extremely low latency, vital for demanding sessions. While this is a premium investment, the consensus is that the superior sonic performance and robust build quality fully justify the cost. Its stability makes it a foundational piece for achieving world-class audio results.
Know before you buy
Yes, the unit features a modular design. You can add additional I/O modules to the chassis to expand your configuration up to 32 inputs and 32 outputs as your studio needs grow.
This specific PTHD model is designed primarily for seamless integration with Pro Tools HD workflows via HD Core, Accel, HD Native, or HDX cards. If you need to use it with other DAWs, you would typically need to swap the I/O module for a Thunderbolt or Pro Tools-agnostic version.
The unit uses standard DSUB 25-pin connectors for its 16 analog inputs and 16 analog outputs. You will need to purchase DB25-to-XLR or DB25-to-TRS breakout cables to connect your microphones, preamps, and monitors.
The front panel touchscreen provides quick access to essential settings like input/output levels, monitoring, and clocking. For more granular configuration and routing, you can use the dedicated Symphony Control software on your Mac.
Because this system is designed to interface directly with Pro Tools HD hardware, it offers ultra-low latency performance that is effectively imperceptible during tracking. It is engineered to handle the high-speed demands of professional recording environments.
The Symphony Control software is compatible with macOS. While the interface hardware itself functions within a Pro Tools HD environment, ensure your specific macOS version is supported by checking the latest compatibility documentation on Apogee’s website.
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$6999