Apogee Electronics Symphony Mk II Dual 16×16 PTHD Plus – 32 Line In x 32 Line Out Pro Tools HD Plus Audio Interface with 8 x DB25 + 2 x SPDIF Coax [Atmos Ready]

OVERVIEW

The Apogee Electronics Symphony Mk II Dual 16×16 PTHD Plus is a flagship 32 line input x 32 line output audio interface built for high-end recording, mixing, mastering and immersive audio production. Featuring two 16×16SE I/O modules and a Pro Tools HD Plus card, it combines Apogee’s renowned AD/DA conversion with ultra-low-latency performance and the connectivity required for demanding professional studio workflows.

Designed for precision and flexibility, Symphony Mk II supports up to 32 channels of modular analogue I/O and features an intuitive touchscreen display for streamlined control. Its high-performance conversion delivers up to 122 dB of A-weighted dynamic range on A/D conversion and up to 126 dB on D/A conversion, while Apogee’s proprietary Perfect Symmetry Circuitry helps maintain balanced, transparent output.

The interface is also ready for advanced immersive audio workflows, with Monitor Workflows supporting control of up to 32 speaker outputs for formats including Dolby Atmos and Sony 360 Reality Audio. With 8 x DB25 connectors, 2 x coaxial S/PDIF connections and dedicated Pro Tools HD Plus integration, the Symphony Mk II Dual 16×16 PTHD Plus provides the connectivity, sound quality and scalability required by serious professional studios.

KEY HIGHLIGHTS

Expanded 32 x 32 Line-Level I/O

Two 16×16SE I/O modules provide 32 line inputs and 32 line outputs, making this configuration ideal for large-scale studios, extensive analogue outboard setups and complex routing requirements.

Flagship Apogee AD/DA Conversion

Experience exceptional clarity, transparency and detail with Apogee’s flagship AD/DA conversion. With up to 122 dB of A-weighted dynamic range for A/D conversion and 126 dB for D/A conversion, Symphony Mk II delivers the sonic accuracy required for critical professional recording, mixing and mastering.

Dedicated Pro Tools HD Plus Integration

The included Pro Tools HD Plus card provides direct integration with compatible Pro Tools HD and HDX systems, delivering the high-performance connectivity and low-latency operation required for professional production environments.

Flexible Analog and Digital Connectivity

With eight DB25 connectors and two coaxial S/PDIF connections, this configuration provides extensive analogue and digital connectivity for integrating consoles, outboard processors, converters and other professional studio equipment.

Ultra-Low-Latency Performance

Designed for demanding professional workflows, Symphony Mk II delivers ultra-low-latency performance for responsive recording and monitoring, helping keep complex studio sessions efficient and uninterrupted.

Ready for Immersive Audio

Symphony Mk II Monitor Workflows provide flexible control of up to 32 speaker outputs, supporting advanced immersive monitoring systems for formats such as Dolby Atmos and Sony 360 Reality Audio.

Intuitive Touchscreen Control

A built-in touchscreen display provides intuitive access to essential interface settings and monitoring functions, helping streamline control and operation in demanding professional studio environments.

Designed and Built in the USA

Designed and built in the USA, the Symphony Mk II is engineered for professional audio environments where exceptional sound quality, flexibility and long-term reliability are essential.

FEATURES

• Flagship Apogee AD/DA conversion
• 32 line inputs
• 32 line outputs
• 2 x 16×16SE I/O modules
• Dedicated Pro Tools HD Plus connectivity
• Ultra-low-latency performance
• Modular I/O architecture with support for up to 32 channels of analog I/O across the Symphony Mk II platform
• Intuitive front-panel touchscreen display
• Ready for immersive audio workflows
• Monitor Workflows supporting control of up to 32 speaker outputs
• 8 x DB25 connectors
• 2 x coaxial S/PDIF connections
• 1 x front-panel stereo 1/4″ headphone output
• Supports immersive formats including Dolby Atmos and Sony 360 Reality Audio
• Apogee proprietary Constant Current Drive™ headphone output
• Balanced outputs with Apogee’s proprietary Perfect Symmetry Circuitry (PSC)
• Compatible with Pro Tools HD and HDX systems
• Designed and built in the USA

TECHNICAL SPECS

Analogue I/O

Configuration: 32 Line In x 32 Line Out

I/O Module: 2 x 16x16SE

Expansion: Modular I/O architecture, up to 32 channels

Analog Inputs: 32 line

Analog Outputs: 32 line

Analog-to-Digital Conversion

THD+N: -115dB @ 22dBu (0.00020%), unweighted

Dynamic Range: 122dB A-weighted

Maximum Input Level (+4dB setting): +24dBu

Maximum Input Level (-10dB setting): +6dBV

Frequency Response: 20Hz–20kHz ±0.05dB @ 44.1kHz

Input Impedance: 10kΩ

Digital-to-Analog Conversion

THD+N: -119dB @ 21dBu (0.00014%), unweighted

Dynamic Range: 126dB A-weighted

Maximum Output Level: ∞ to +24dBu

Frequency Response: DC–20kHz ±0.05dB @ 44.1kHz

Output Impedance: 50Ω

Output Circuitry: Apogee proprietary Perfect Symmetry Circuitry (PSC)

Output Configuration: Balanced

Headphone Output

Outputs: 1 stereo 1/4″ headphone output on front panel

THD+N: -110dB @ 19dBu into 600Ω (80mW)

THD+N: -101dB @ 14dBu into 32Ω (470mW)

Dynamic Range: 121dB A-weighted

Technology: Apogee Constant Current Drive™

Digital Connectivity

DB25: 8 connectors

Coaxial: 2 x SPDIF

Host Connection: Pro Tools HD Plus Card

Immersive Audio

Monitor Workflows: Symphony I/O Mk II Thunderbolt Monitor Workflows

Immersive Formats: Dolby Atmos, Sony 360 Reality Audio and other immersive audio systems

Speaker Outputs: Up to 32

Power

Power Requirements: 90–240VAC, 50–60Hz

Power Consumption: 150W

Operating System & Compatibility

Pro Tools HD/HDX: Mac or PC running Pro Tools HD 9 or later

Included Configuration

1 x Symphony Mk II Chassis

2 x 16x16SE I/O Modules

1 x Pro Tools HD Plus Card

DOWNLOADS

• User Guide PDF (6.87 MB)