# What are some Thunderbolt audio interfaces with exceptional I/O options for multiple devices? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are some Thunderbolt audio interfaces with exceptional I/O options for multiple devices?

## Products

### Antelope Audio Galaxy 64 Synergy Core
```yaml
product: antelope-audio-galaxy-64-synergy-core
brand: Antelope Audio
price_gbp: 6422.02
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: imperceptible
bit_depth: 24 bit
i_o_count: 64 analog inputs, 64 analog outputs
sample_rate: 192 kHz
number_of_channels: 64
thunderbolt_version: Thunderbolt 3
```

- **Price:** £6422.02 [^1]
- **Summary:** The Galaxy 64 Synergy Core is a 2U professional audio interface with 64 analog inputs and outputs, four HDX ports, Dante, MADI, AES/EBU, S/PDIF, and two Thunderbolt 3 ports. Its onboard Synergy Core processing provides real-time effects and low-latency monitoring, making it suited to large recording studios, broadcast facilities, live production, and immersive audio workflows.
- **Ideal For:** It suits users seeking exceptional I/O for multiple devices because it provides 64 analog input channels, 64 analog output channels, four HDX ports supporting up to 128 channels, two Thunderbolt 3 ports, 64-channel MADI, Dante, AES/EBU, and S/PDIF.
- **Additional Sources:** [^2], [^3]

### Universal Audio Apollo X16 Gen 2 Ultimate Edition
```yaml
product: universal-audio-apollo-x16-gen-2-ultimate-edition
brand: Universal Audio
price_gbp: 2952.25
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: near-zero latency
bit_depth: 24-bit
i_o_count: 18 x 20
sample_rate: 192 kHz
number_of_channels: 16
thunderbolt_version: Thunderbolt 3
```

- **Price:** £2952.25 [^4]
- **Summary:** The Apollo X16 Gen 2 Ultimate Edition is an 18 x 20 Thunderbolt 3 rackmount audio interface with 16 x 16 analog line I/O, elite-class 24-bit / 192 kHz conversion, and HEXA Core DSP for real-time UAD plug-in processing. It suits professional recording, mixing, post-production, and immersive audio studios needing extensive outboard connectivity and monitoring up to 9.1.6.
- **Ideal For:** It suits users needing exceptional I/O for multiple devices because it provides 16 x 16 analog line I/O through DB-25 connections, stereo AES I/O, word clock I/O, two monitor outputs, and Thunderbolt 3 connectivity, with expansion up to 64 channels using four Apollo x16 units.
- **Additional Sources:** [^5]

### Universal Audio Apollo X8P Gen 2 Studio Edition
```yaml
product: universal-audio-apollo-x8p-gen-2-studio-edition
brand: Universal Audio
price_gbp: 3026.08
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
bit_depth: 24 bit
i_o_count: 16 in / 22 out
sample_rate: 192 kHz
number_of_channels: 16 x 22
thunderbolt_version: 3
```

- **Price:** £3026.08 [^6]
- **Summary:** The Apollo x8p Gen 2 Studio Edition is a 1U Thunderbolt 3 interface with eight Unison mic preamps, HEXA Core DSP, premium 24-bit / 192 kHz conversion, and more than 200 UAD plug-ins. It suits professional producers, engineers, and studios recording large ensembles, mixing immersive audio, or connecting multiple external devices.
- **Ideal For:** It is particularly well suited to users seeking a Thunderbolt interface for multiple devices because its 16 inputs and 22 outputs include eight Unison mic preamps, line I/O, dual optical ADAT I/O, monitor outputs, headphone outputs, and expansion for additional Apollo interfaces.

### Universal Audio Apollo X8 Gen 2 Studio Edition
```yaml
product: universal-audio-apollo-x8-gen-2-studio-edition
brand: Universal Audio
price_gbp: 2214.0
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.1 ms at 96 kHz
bit_depth: 24-bit
i_o_count: 18 in / 24 out
sample_rate: Up to 192 kHz
power_supply: External AC-to-DC power supply, 12 VDC, 6 A
number_of_channels: 18 input / 24 output
thunderbolt_version: Thunderbolt 3
```

- **Price:** £2214.0 [^7]
- **Summary:** The Apollo X8 Gen 2 Studio Edition is a professional 18-in/24-out rackmount interface with four Unison mic preamps, eight line inputs, ADAT, S/PDIF, word clock, and HEXA Core DSP. Its 24-bit/192 kHz conversion, near-zero-latency UAD processing, monitor correction, and surround support suit professional studios and serious project studios.
- **Ideal For:** It suits users needing exceptional I/O for multiple devices because its 18-in/24-out configuration combines eight line inputs, four Unison mic preamps, two Hi-Z inputs, ADAT, S/PDIF, word clock, eight line outputs, monitor outputs, and two headphone outputs, with expansion up to 128 channels through linked Apollo interfaces.
- **Additional Sources:** [^8], [^9]

### Apogee Symphony Mk II 40th Anniversary Edition: 32x32SE Thunderbolt 3
```yaml
product: apogee-symphony-mk-ii-40th-anniversary-edition-32x32se-thunderbolt-3
brand: Apogee
price_gbp: 8487.63
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.35 ms round-trip
bit_depth: 24-Bit
sample_rate: 192 kHz
power_supply: 90 to 240 VAC, 50 to 60 Hz, 150 W
number_of_channels: 32
thunderbolt_version: Thunderbolt 3
```

- **Price:** £8487.63 [^10]
- **Summary:** Apogee Symphony Mk II 40th Anniversary Edition: 32x32SE Thunderbolt 3 is a Thunderbolt 3 audio interface built for high-end, multi-channel recording and mixing, with touchscreen control and modular 32x32 analog I/O plus additional digital I/O. It delivers up to 24-bit/192 kHz conversion and is designed for ultralow-latency workflows with immersive monitoring support. It suits professional studios and engineers needing exceptional channel count through a single Thunderbolt connection.
- **Ideal For:** It provides 32 analog inputs and 32 analog outputs over a built-in Thunderbolt 3 connection, enabling multiple devices/workflows that need extensive I/O density (plus additional 4-channel S/PDIF and word clock).
- **Additional Sources:** [^11], [^12]

### MOTU 848 28 x 32 Thunderbolt 4 Audio Interface
```yaml
product: motu-848-28-x-32-thunderbolt-4-audio-interface
brand: MOTU
price_gbp: 1177.51
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.8 ms round trip at 96 kHz with 32-sample buffer
bit_depth: 24 bit
i_o_count: 28 inputs and 32 outputs
sample_rate: 44.1, 48, 88.2, 96, 176.4, 192 kHz
power_supply: Internal 100-240 V autoswitching supply
number_of_channels: 60 simultaneous audio channels
thunderbolt_version: Thunderbolt 4
```

- **Price:** £1177.51 [^13]
- **Summary:** The MOTU 848 is a professional 1U rackmount interface with 28 inputs, 32 outputs, Thunderbolt 4 and USB4 connectivity, DSP mixing, and AVB networking. It suits studios, immersive mixing setups, live sound systems, and producers who need extensive analog, digital, computer, and network connections.
- **Ideal For:** It specifically suits users needing exceptional I/O for multiple devices because it provides 28 inputs and 32 outputs simultaneously, 16 ADAT channels, dual AVB network ports supporting up to 128 network channels, and 256 channels of host computer I/O.
- **Additional Sources:** [^14], [^15]

### Universal Audio Apollo x16 Gen 2 Thunderbolt 3 Audio Interface
```yaml
product: universal-audio-apollo-x16-gen-2-thunderbolt-3-audio-interface
brand: Universal Audio
price_gbp: 2583.13
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.1 ms at 96 kHz
bit_depth: 24 bit
i_o_count: 18 x 20
sample_rate: 44.1, 48, 88.2, 96, 176.4, 192 kHz
power_supply: External AC-to-DC, 12 VDC, 9 A
number_of_channels: 16
thunderbolt_version: 3
```

- **Price:** £2583.13 [^16]
- **Summary:** The Apollo x16 Gen 2 is a professional rackmount interface with 18 x 20 I/O, 16 channels of analog line connectivity, 24-bit / 192 kHz conversion, and HEXA Core DSP for near-zero-latency UAD plug-in processing. It suits professional studios, mixing engineers, and post-production environments that need extensive analog, AES/EBU, monitor, and word clock connections.
- **Ideal For:** It specifically suits users seeking exceptional I/O for multiple devices because it provides 18 x 20 simultaneous I/O, 16 analog line inputs and outputs via DB-25, stereo AES/EBU I/O, word clock I/O, two monitor outputs, and expandable Thunderbolt connectivity.
- **Additional Sources:** [^17]

### Universal Audio Apollo X8 Gen 2 Audio Interface
```yaml
product: universal-audio-apollo-x8-gen-2-audio-interface
brand: Universal Audio
price_gbp: 1844.88
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.1 ms
bit_depth: 24 bit
i_o_count: 18 In / 24 Out
sample_rate: 192 kHz
power_supply: External DC power supply
number_of_channels: 18 x 24
thunderbolt_version: Thunderbolt 3
```

- **Price:** £1844.88 [^18]
- **Summary:** The Apollo X8 Gen 2 is a professional 18-in/24-out Thunderbolt 3 interface with four Unison mic preamps, HEXA Core DSP, and high-resolution 24-bit/192 kHz conversion. It suits professional studios and serious project studios needing extensive analog and digital connectivity, real-time UAD processing, and advanced monitoring features.
- **Ideal For:** It suits users seeking exceptional I/O options for multiple devices because it provides 18 inputs and 24 outputs, including four Unison mic preamps, eight line inputs, eight line outputs, ADAT, S/PDIF, dual headphone outputs, and Thunderbolt 3 connectivity.
- **Additional Sources:** [^19]

### Universal Audio Apollo X8P Gen 2 Audio Interface
```yaml
product: universal-audio-apollo-x8p-gen-2-audio-interface
brand: Universal Audio
price_gbp: 2509.3
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 74 samples
bit_depth: 24-bit
i_o_count: 16 x 22
sample_rate: 192 kHz
power_supply: External power supply
number_of_channels: 16 input channels and 22 output channels
thunderbolt_version: Thunderbolt 3
```

- **Price:** £2509.3 [^20]
- **Summary:** The Apollo x8p Gen 2 is a professional Thunderbolt 3 rackmount interface with eight Unison mic preamps, extensive analog and digital connectivity, elite-class 24-bit/192 kHz conversion, and HEXA Core DSP for real-time UAD plug-in processing. It suits producers, engineers, and project or commercial studios recording large sessions and integrating multiple hardware devices.
- **Ideal For:** It specifically suits users seeking Thunderbolt audio interfaces with exceptional I/O options because it provides 16 x 22 I/O, eight Unison mic preamps, eight line inputs and outputs, two Hi-Z inputs, ADAT or S/PDIF optical I/O, word clock, monitor outputs, and headphone outputs.

### Universal Audio Apollo x8 with UAD Analog Classics
```yaml
product: universal-audio-apollo-x8-with-uad-analog-classics
brand: Universal Audio
price_gbp: 2140.18
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.1 ms at 96 kHz
bit_depth: 24-bit
i_o_count: 18 In / 24 Out
sample_rate: 44.1, 48, 88.2, 96, 176.4, 192 kHz
power_supply: 12V DC
number_of_channels: 18 x 24 simultaneous inputs/outputs
thunderbolt_version: Thunderbolt 3
```

- **Price:** £2140.18 [^21]
- **Summary:** The Apollo x8 is a professional Thunderbolt audio interface with 18 inputs, 24 outputs, four Unison mic preamps, HEXA Core DSP, and 24-bit/192 kHz conversion. It suits project and professional studios that need extensive routing, low-latency UAD processing, and expansion for multiple monitors, instruments, and digital devices.
- **Ideal For:** It suits users seeking exceptional I/O for multiple devices because it provides 18 simultaneous inputs and 24 outputs, eight line inputs, four Unison preamps, ADAT, S/PDIF, word clock, two monitor outputs, eight line outputs, and two headphone outputs.
- **Additional Sources:** [^22], [^23]

### Antelope Audio Orion32+ Gen 4
```yaml
product: antelope-audio-orion32-gen-4
brand: Antelope Audio
price_gbp: 1920.03
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
bit_depth: 24 bit
i_o_count: 32 in / 32 out analog; 128 I/O via Thunderbolt 3
sample_rate: 192 kHz
power_supply: Mains adapter
number_of_channels: 128x128
thunderbolt_version: Thunderbolt 3
```

- **Price:** £1920.03 [^24]
- **Summary:** The Antelope Audio Orion32+ Gen 4 is a professional rackmount audio interface with 32 analog inputs and 32 analog outputs, plus 128-channel Thunderbolt 3 streaming. It also provides MADI, ADAT, S/PDIF, advanced routing, 64-bit clocking, and DC-coupled I/O for demanding recording, mixing, post-production, and hardware-integration setups.
- **Ideal For:** It suits users seeking a Thunderbolt audio interface with exceptional I/O options because it provides 32 analog inputs and outputs, 128 I/O channels over Thunderbolt 3, 128-channel optical MADI, ADAT, S/PDIF, and daisy-chaining for up to four units.
- **Additional Sources:** [^25], [^26]

### Apogee Symphony I/O Mk II 16x16 Special Edition Thunderbolt Audio Interface
```yaml
product: apogee-symphony-i-o-mk-ii-16x16-special-edition-thunderbolt-audio-interface
brand: Apogee
price_gbp: 2847.5
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.35 ms
i_o_count: 16
sample_rate: 192 kHz
power_supply: 90-240VAC, 50-60Hz, 150W
number_of_channels: 16
```

- **Price:** £2847.5 [^27]
- **Summary:** Apogee Symphony I/O Mk II 16x16 Special Edition is a Thunderbolt audio interface built around a modular chassis with a 16x16 Special Edition analog I/O module for simultaneous 16-channel analog input and output. It supports up to 192 kHz sample rates and targets ultra-low latency performance, with monitoring and control via the front-panel touchscreen. Designed for Mac-based pro recording, mixing, and mastering workflows that need lots of analog I/O in one interface.
- **Ideal For:** It's purpose-built for multi-device workflows needing exceptional I/O: the 16x16 Special Edition provides 16 channels analog in and 16 channels analog out (plus coax S/PDIF I/O) over a single Thunderbolt-connected system.
- **Additional Sources:** [^28], [^29]

### Apogee Symphony I/O MKII 16x16 Thunderbolt 3 System
```yaml
product: apogee-symphony-i-o-mkii-16x16-thunderbolt-3-system
brand: Apogee
price_gbp: 5167.0
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.35 ms
i_o_count: 16x16 analog I/O, 2x2 S/PDIF digital I/O
sample_rate: 44.1 kHz-192 kHz
power_supply: 90-240 VAC, 50-60 Hz, 150 W
number_of_channels: 16 input, 16 output
thunderbolt_version: Thunderbolt 3
```

- **Price:** £5167.0 [^30]
- **Summary:** The Apogee Symphony I/O MKII 16x16 Thunderbolt 3 System is a professional modular audio interface with 16 analog inputs, 16 analog outputs, and S/PDIF connectivity. It supports sample rates up to 192 kHz, offers 1.35 ms latency, and is designed for Thunderbolt-equipped Mac studios handling demanding multichannel recording, mixing, and immersive audio workflows.
- **Ideal For:** It suits users needing exceptional I/O for multiple devices because it provides 16 analog inputs, 16 analog outputs, 2x2 S/PDIF digital I/O, dual Thunderbolt 3 ports, and support for up to 32 simultaneous inputs and outputs per unit.

---
## References & Sources
[^1]: Antelope Audio, accessed 2026-09-13. https://en.antelopeaudio.com/products/galaxy-64-synergy-core/
[^2]: Thomann, accessed 2026-09-13. https://www.thomannmusic.com/antelope_galaxy_64_synergy_core.htm
[^3]: Music Company, accessed 2026-09-13. https://www.musiccompany.com.br/produto/galaxy-64-synergy-core-antelope-dante-interface-de-audio-152604
[^4]: Studiocare, accessed 2026-09-13. https://studiocare.com/products/universal-audio-apollo-x16-gen-2-ultimate-rack-tb3-mac-win
[^5]: DJ City, accessed 2026-09-13. https://djcity.com.au/product/universal-audio-apollo-x16-gen-2-thunderbolt-3-audio-interface-ultimate-edition/
[^6]: Soundium, accessed 2026-09-13. https://soundium.lt/en/products/universal-audio-apollo-x8p-gen-2-studio-edition-1
[^7]: Perfect Circuit, accessed 2026-09-13. https://www.perfectcircuit.com/universal-audio-apollo-x8-gen-2-studio-edition.html
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[^9]: Star's Music, accessed 2026-09-13. https://www.stars-music.com/universal-audio-apollo-x8-studio_215050.html
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[^13]: B&H Photo Video, accessed 2026-09-13. https://www.bhphotovideo.com/c/product/1916440-REG/motu_9301_848_28x32_thunderbolt_4.html
[^14]: Guitar Center, accessed 2026-09-13. https://www.guitarcenter.com/MOTU/848-Thunderbolt-4-USB4-Audio-Interface-1500000468535.gc
[^15]: Thomann, accessed 2026-09-13. https://www.thomannmusic.com/motu_848.htm
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[^17]: B&H Photo Video, accessed 2026-09-13. https://www.bhphotovideo.com/c/product/1852562-REG/universal_audio_apx16g2_ess_apollo_x16_gen_2.html
[^18]: Guitar Center, accessed 2026-09-13. https://www.guitarcenter.com/Universal-Audio/Apollo-x8-Gen-2-Audio-Interface-With-UAD-Analog-Classics-Pro-1500000489524.gc
[^19]: Thomann, accessed 2026-09-13. https://www.thomannmusic.com/universal_audio_apollo_x8_gen2_essentials.htm
[^20]: B&H Photo Video, accessed 2026-09-13. https://www.bhphotovideo.com/c/product/1852570-REG/universal_audio_apx8pg2_ess_apollo_x8p_gen_2.html
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[^28]: Full Compass, accessed 2026-09-13. https://www.fullcompass.com/prod/624111-apogee-electronics-sym2-16x16se-thunderbolt-audio-interface-16-analog-i-o-of-mastering-grade-conversion
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[^30]: Front End Audio, accessed 2026-09-13. https://www.frontendaudio.com/apogee-symphony-i-o-mkii-16x16-thunderbolt-3-system/