# What are the quietest USB audio interfaces available? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the quietest USB audio interfaces available?

## Products

### Audient iD14 MkII
```yaml
product: audient-id14-mkii
brand: Audient
price_gbp: 21244.45
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: DSP mixer round-trip 0.65ms at 44.1kHz; 0.6ms at 48kHz; 0.33ms at 88.2kHz; 0.31ms at 96kHz
bit_depth: 24-bit
sample_rate: 96 kHz
phantom_power: +48V per mic input
number_of_inputs: 2 analogue in, 1 JFET instrument, ADAT (up to 8 additional)
number_of_outputs: 4 analogue outs, 2 headphone outputs, ADAT
```

- **Price:** £21244.45 [^1]
- **Summary:** Two class-A mic preamps, JFET instrument input, ADAT expansion and high-performance converters up to 24-bit/96kHz. Suited for home and project studios, podcasters, and guitarists who want low-latency monitoring and expandability.

### Apogee Duet 3
```yaml
product: apogee-duet-3
brand: Apogee
price_gbp: 484.93
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: null
bit_depth: 24-bit
sample_rate: 192kHz
phantom_power: 48V
number_of_inputs: 2
number_of_outputs: 4
```

- **Price:** £484.93 [^2]
- **Summary:** Duet 3 is a compact 2-in/4-out USB-C audio interface with Apogee AD/DA conversion, two studio-quality preamps, onboard DSP for near-zero-latency monitoring and a zero-ohm headphone output. It's aimed at mobile musicians, producers, and podcasters who want high-fidelity portable recording and simple desktop workflow.
- **Additional Sources:** [^3], [^4]

### RME Babyface Pro FS
```yaml
product: rme-babyface-pro-fs
brand: RME
price_gbp: 656.79
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 5 samples AD, 7 samples DA
bit_depth: 24 bit
sample_rate: 28 kHz up to 200 kHz
phantom_power: Individually switchable 48V on both mic inputs
number_of_inputs: 2 x XLR mic/line, 2 x 6.3 mm TS line/instrument, ADAT optical, SPDIF optical, MIDI via breakout
number_of_outputs: 2 x XLR line outputs, 2 x headphone outputs (3.5 mm TRS and 6.35 mm), ADAT optical, SPDIF optical
```

- **Price:** £656.79 [^5]
- **Summary:** Portable, bus-powered 24-channel (expandable via ADAT) USB audio interface with RME's SteadyClock FS, two high-quality mic preamps, DC-coupled outputs and dual headphone outputs. Suited to professional musicians, mobile recordists and producers who need ultra-low latency, rock-solid drivers and expandability via ADAT.
- **Additional Sources:** [^6]

### Universal Audio Apollo Twin X DUO
```yaml
product: universal-audio-apollo-twin-x-duo
brand: Universal Audio
price_gbp: 746.45
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: 1.1 ms at 96 kHz
bit_depth: 24-Bit
sample_rate: 44.1 to 192 kHz
phantom_power: 48 V, Selectable On/Off (Individual Inputs)
number_of_inputs: 2x Combo XLR-1/4 TRS mic/line, 1x 1/4 TS Hi-Z, ADAT/TOSLINK, S/PDIF
number_of_outputs: 2x 1/4 TRS monitor, 2x 1/4 TRS line (ALT), 1x 1/4 TRS headphone
```

- **Price:** £746.45 [^7]
- **Summary:** Desktop Thunderbolt/USB-C audio interface with two Unison mic preamps, DUO Core real-time UAD DSP, and elite-class 24-bit/192 kHz conversion. Suited to musicians, producers, and project-studio engineers who need high-quality conversion, near-zero latency tracking with UAD plug-ins, and expandable I/O via ADAT.
- **Additional Sources:** [^8], [^9]

### Focusrite Clarett+ 4Pre
```yaml
product: focusrite-clarett-4pre
brand: Focusrite
price_gbp: 560.39
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
latency: null
bit_depth: 24-bit
sample_rate: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
phantom_power: +48V switches for inputs 1 and 2, 3 and 4
number_of_inputs: 18: analogue (8), S/PDIF (2), ADAT (8)
number_of_outputs: 8: analogue (4), S/PDIF (2), HP2 (2)
```

- **Price:** £560.39 [^10]
- **Summary:** Compact 18-in/8-out USB-C audio interface with four Clarett+ mic preamps, two instrument inputs, ADAT expandability and low-noise 24-bit/192 kHz converters. Suits home and project studios needing high-quality preamps, multiple outputs and low-distortion converters.
- **Additional Sources:** [^11], [^12]

---
## References & Sources
[^1]: PriceHistory / Flipkart listing, accessed 2026-06-07. https://pricehistory.app/p/audient-id14-mkii-10in-6out-high-performance-Q5S1TfQ2
[^2]: Apogee Store, accessed 2026-06-07. https://apogeedigital.com/product/apogee-duet-3/
[^3]: PitBull Audio, accessed 2026-06-07. https://www.pitbullaudio.com/apogee-duet-3-2-in-4-out-usb-c-audio-interface-w-2-microphone-preamps.html
[^4]: Sam Ash, accessed 2026-06-07. https://www.samash.com/apogee-duet-3-2x4-usb-c-audio-interface-aduet3xxx
[^5]: RME USA, accessed 2026-06-07. https://www.rme-usa.com/babyface-pro.html
[^6]: Thomann, accessed 2026-06-07. https://www.thomannmusic.com/rme_babyface_pro_fs.htm
[^7]: B&H Photo Video, accessed 2026-06-07. https://www.bhphotovideo.com/c/product/1852558-REG/universal_audio_aptxdg2_ess_apollo_twin_x_duo.html
[^8]: B&H Photo Video (Studio+ bundle), accessed 2026-06-07. https://www.bhphotovideo.com/c/product/1852559-REG/universal_audio_aptxdg2_stu_apollo_twin_x_duo.html
[^9]: Newegg, accessed 2026-06-07. https://www.newegg.com/p/18M-00V7-00026
[^10]: Focusrite (official store), accessed 2026-06-07. https://us.focusrite.com/products/clarett-plus-4pre
[^11]: Sam Ash, accessed 2026-06-07. https://www.samash.com/focusrite-clarett-plus-4pre-usb-c-audio-interface-fclplus4p
[^12]: Vintage King, accessed 2026-06-07. https://vintageking.com/product/focusrite-clarett-plus-4pre