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title: Symphony I/O Mk 2 | Knowledge Base
description: "Getting Started\nTroubleshooting\nFAQ's"
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2. [Symphony I/O Mk 2](https://knowledge.apogeedigital.com/symphony-i-o-mk-2)

# Symphony I/O Mk 2

 Getting Started Troubleshooting FAQ's

## User Guide

- [Symphony I/O MkII User Guides](https://knowledge.apogeedigital.com/symphony-i/o-mkii-user-guide)
- [Immersive (Atmos) Mixing with Symphony I/O MkII Thunderbolt, Pro Tools & Ginger Audio Sphere v2](https://knowledge.apogeedigital.com/ginger-audio-sphere-symphony-i/o-mkii)

## Getting Started

- [Installing Control 2 Native for Symphony I/O MkII Thunderbolt](https://knowledge.apogeedigital.com/installing-control-2-native-for-symphony-i/o-mkii)
- [Setting up Symphony Mk II with Ginger Audio's GroundControl Sphere for Immersive Audio](https://knowledge.apogeedigital.com/setting-up-symphony-mk-ii-with-ginger-audios-groundcontrol-sphere)
- [Direct monitoring with Symphony MK II Thunderbolt in Symphony Control](https://knowledge.apogeedigital.com/direct-monitoring-with-symphony-mk-ii-thunderbolt-in-symphony-control)
- [How To Set Up Symphony I/O Mk 2 in Standalone Mode](https://knowledge.apogeedigital.com/how-to-set-up-symphony-i/o-mk-2-in-standalone-mode)
- [Setting up and configuring Symphony I/O MkII with Pro Tools HD](https://knowledge.apogeedigital.com/setting-up-and-configuring-symphony-i/o-mkii-with-pro-tools-hd)
- [How to set the Symphony I/O MkII for Auto-Power On](https://knowledge.apogeedigital.com/how-to-set-the-symphony-i/o-mkii-for-auto-power-on)
- [Getting Started Step-by-step with Symphony I/O Mk II Dante](https://knowledge.apogeedigital.com/getting-started-step-by-step-with-symphony-i/o-mk-ii-dante)
- [Symphony I/O Mk2 Dante Clock Source & Sample Rate Configuration](https://knowledge.apogeedigital.com/symphony-i/o-mk2-dante-clock-source-sample-rate-configuration)
- [Symphony I/O Mk2 Dante + Pro Tools HD Routing](https://knowledge.apogeedigital.com/symphony-i/o-dante-pro-tools-hd-routing)
- [Symphony I/O Mk2 Dante Routing](https://knowledge.apogeedigital.com/symphony-i/o-mk2-dante-routing)
- [Updating Symphony MkII firmware via Dante](https://knowledge.apogeedigital.com/updating-symphony-mkii-firmware-via-dante)

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## Compatibility

- [Can Symphony Mk II be used with Windows OS?](https://knowledge.apogeedigital.com/can-symphony-mk-ii-be-used-with-windows-os)
- [KEXT vs DEXT](https://knowledge.apogeedigital.com/kext-vs-dext)
- [16x16SE Module Card Compatibility Guide for Symphony I/O MkII](https://knowledge.apogeedigital.com/16x16se-module-card-compatibility-guide-for-symphony-i/o-mkii)
- [What I/O modules are supported in Symphony I/O MkII and are there restrictions?](https://knowledge.apogeedigital.com/what-i/o-modules-are-supported-in-symphony-i/o-mkii-and-are-there-restrictions)
- [Symphony I/O MkII System Requirements & Compatibility](https://knowledge.apogeedigital.com/symphony-i/o-mkii-system-requirements-compatibility)
- [Symphony I/O MkII v3.5 Release for 10.15 Catalina](https://knowledge.apogeedigital.com/symphony-i/o-mkii-v3.5-release-for-10.15-catalina)

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## Troubleshooting

- [Symphony I/O MkII not being seen with Sequoia or later](https://knowledge.apogeedigital.com/symphony-i/o-mkii-not-being-seen-with-sequoia)
- [How to clear a staged Apogee kernel extension on Apple Silicon Macs](https://knowledge.apogeedigital.com/how-to-clear-a-staged-apogee-kernel-extension-on-apple-silicon-macs)
- [When two Symphony I/O Mkll’s are daisy chained, channel numbers may be wrong in Control 2](https://knowledge.apogeedigital.com/when-two-symphony-i/o-mklls-are-daisy-chained-channel-numbers-may-be-wrong-in-control-2)
- [Symphony I/O MkII Multi-UNIT tips, tricks and troubleshooting](https://knowledge.apogeedigital.com/symphony-i/o-mk-2-tips-tricks-and-troubleshooting)
- [Symphony I/O MkII / Control 2 trouble shooting](https://knowledge.apogeedigital.com/symphony-i/o-mkii-/-control-2-trouble-shooting)
- [Symphony I/O MkII Thunderbolt is not recognized in Symphony Control (macOS Big Sur, Monterey, Ventura)](https://knowledge.apogeedigital.com/symphony-i/o-mkii-thunderbolt-is-not-recognized-in-symphony-control-macos-big-sur-monterey-ventura)
- [Symphony I/O Mk II Dante Troubleshooting](https://knowledge.apogeedigital.com/symphony-i/o-mk-ii-dante-troubleshooting)
- [Symphony MK II Pro Tools HD cannot playback core audio outside of Pro Tools and shows 00.00 on the screen](https://knowledge.apogeedigital.com/symphony-mk-ii-pro-tools-hd-cannot-playback-core-audio-outside-of-pro-tools-and-shows-00.00-on-the-screen)
- [Apogee Control is not working with my Pro Tools HD connected Symphony](https://knowledge.apogeedigital.com/apogee-control-is-not-working-with-my-pro-tools-hd-connected-symphony)
- [Not getting audio input/output in DAW with Symphony I/O MkII](https://knowledge.apogeedigital.com/not-getting-audio-input/output-in-daw-with-symphony-i/o-mkii)
- [Clocking errors reported or clicks & pops heard with Symphony I/O Mk 2 Dante](https://knowledge.apogeedigital.com/symphony-i/o-dante-clocking-errors-reported-or-clicks-pops-heard)

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## FAQ's

- [Are my Apogee's outputs DC Coupled for Control Voltage (CV) use?](https://knowledge.apogeedigital.com/are-my-apogees-outputs-dc-coupled-for-control-voltage-cv-use)
- [Symphony I/O: Does the 2x6 I/O Module have Mic Preamps?](https://knowledge.apogeedigital.com/symphony-i/o-does-the-2x6-i/o-module-have-mic-preamps)
- [How do I apply delay compensation and eq to my Symphony I/O MkII outputs for calibration and certification?](https://knowledge.apogeedigital.com/how-do-i-apply-delay)
- [Symphony I/O MkII Pinout Configurations](https://knowledge.apogeedigital.com/symphony-i/o-mkii-pinout)
- [Symphony I/O Mk II – Thunderbolt 2 to Thunderbolt 3 Upgrade](https://knowledge.apogeedigital.com/symphony-i/o-mk-ii-thunderbolt-2-to-thunderbolt-3-upgrade)
- [Is the Connect8 I/O module card for Symphony I/O MkII also compatible with the Mk1 original Symphony?](https://knowledge.apogeedigital.com/is-the-connect8-i/o-module-card-for-symphony-i/o-mkii-also-compatible-with-the-mk1-original-symphony)
- [Switch Between Optical and AES](https://knowledge.apogeedigital.com/8x8-symphony-module-mk1-and-mkii-and-connect-8x8mp-how-to-switch-between-optical-and-aes)
- [How to use the Talkback function in Apogee Control for Element, Ensemble Thunderbolt, and Symphony I/O MkII](https://knowledge.apogeedigital.com/how-to-use-the-talkback-function-in-apogee-control-for-element-ensemble-thunderbolt-and-symphony-i/o-mkii)
- [How do I get a Symphony I/O MkII Dante System & how does it work?](https://knowledge.apogeedigital.com/how-do-i-get-a-symphony-i/o-mkii-dante-system-how-does-it-work)
- [What's the best way to connect Symphony I/O Mk II balanced outputs to an unbalanced input?](https://knowledge.apogeedigital.com/whats-the-best-way-to-connect-symphony-i/o-mk-ii-balanced-outputs-to-an-unbalanced-input)
- [How to use Low Latency Mixers with two Symphony I/O MKII Thunderbolt units, Multi-Unit Mode?](https://knowledge.apogeedigital.com/how-to-use-low-latency-mixers-with-two-symphony-i/o-mkii-thunderbolt-units-multi-unit-mode)
- [SoundGrid FAQ for Symphony I/O Mk II when equipped with Waves SoundGrid option card](https://knowledge.apogeedigital.com/soundgrid-faq-for-symphony-i/o-mk-ii-when-equipped-with-waves-soundgrid-option-card)
- [How do I tell if a Symphony I/O module is an original MK I or the newer MkII or SE?](https://knowledge.apogeedigital.com/how-do-i-tell-if-a-symphony-i/o-module-is-mk-ii-or-mk-i)
- [How Do I Reset the Symphony I/O MkII?](https://knowledge.apogeedigital.com/how-do-i-reset-the-symphony-i/o-mkii)
- [How to disable the Swipe Gesture on Symphony I/O MkII Touchscreen](https://knowledge.apogeedigital.com/how-to-disable-the-swipe-gesture-on-symphony-i/o-mkii-touchscreen)
- [How to Adjust Display Brightness and Set Display Dim Timer on Symphony I/O MkII](https://knowledge.apogeedigital.com/how-to-adjust-display-brightness-and-set-display-dim-timer-on-symphony-i/o-mkii)
- [How do I find the firmware versions for my Symphony I/O MkII?](https://knowledge.apogeedigital.com/how-do-i-find-the-firmware-versions-for-my-symphony-i/o-mkii)
- [What are the dimensions/measurements of the Symphony I/O MkII?](https://knowledge.apogeedigital.com/what-are-the-dimensions/measurements-of-the-symphony-i/o-mkii)
- [Do I need to install Apogee software to use Symphony I/O MkII with Pro Tools HD?](https://knowledge.apogeedigital.com/do-i-need-to-install-apogee-software-to-use-symphony-i/o-mkii-with-pro-tools-hd)
- [What is the USB on the back of the Symphony I/O MkII HD Option card for?](https://knowledge.apogeedigital.com/what-is-the-usb-on-the-back-of-the-symphony-i/o-mkii-hd-option-card-for)

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