# 在高端 USB 音频接口上我应该寻找哪些功能？ — 经过验证的规格比较

> 所有规格数据均已通过官方渠道验证。

What features should I look for in a high-end USB audio interface?

## 产品列表

### Focusrite Scarlett 18i20 4th Gen
```yaml
product: focusrite-scarlett-18i20-4th-gen
brand: Focusrite
price_gbp: 487.2
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
bit_depth: 24-bit
sample_rate: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
phantom_power: 48V (front-panel or software)
number_of_inputs: 18 inputs (8 mic preamps, 2 front instrument, line, ADAT, S/PDIF, MIDI)
number_of_outputs: 20 outputs (10 line outputs, 2 headphone outputs, ADAT, S/PDIF, MIDI)
```

- **价格:** £487.2 [^1]
- **概述:** High-I/O USB-C audio interface with eight 4th-gen Scarlett mic preamps, 24-bit/192 kHz converters, dual ADAT for expandability, Auto Gain and Clip Safe workflow features, and dual headphone outputs; suited for project and mid-size professional studios needing extensive I/O. Includes Focusrite Control 2 for routing and mobile control.
- **最适合:** 适合用于高端 USB 音频接口的场景，因其提供 24-bit/192 kHz 转换、八个高增益（69dB）麦克风前置放大器，以及丰富的模拟和数字 I/O，便于灵活路由与扩展。

### Universal Audio Volt 876
```yaml
product: universal-audio-volt-876
brand: Universal Audio
price_gbp: 748.8
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
bit_depth: 32 bit
sample_rate: 44.1, 48, 88.2, 96, 176.4, 192 kHz
phantom_power: +48V (selectable per channel)
number_of_inputs: 24 (8 analog, 16 via ADAT)
number_of_outputs: 28 (8 analog, 20 via ADAT/optical)
```

- **价格:** £748.8 [^2]
- **概述:** The Volt 876 is a rack-mount 24-in/28-out USB-C audio interface with eight digitally controlled mic/line preamps, onboard vintage preamp and 1176-style compressor emulations, 32-bit/192 kHz conversion, ADAT expansion, word clock and MIDI I/O. It targets professional and serious home studios needing high channel counts, hardware tone shaping, and comprehensive I/O in a single 1U unit.
- **最适合:** 优秀的高端 USB 接口应提供高采样率和位深、低延迟 I/O、逐通道幻象电源与可扩展的 ADAT 通道；Volt 876 提供 192 kHz 采样率、32-bit 转换、可选的每通道 +48V、八个模拟前置放大器和 ADAT 扩展。

---
## 参考来源
[^1]: Recording Magazine (lists retailer price), 访问日期 2026-06-13. https://www.recordingmag.com/focusrite-scarlett-18i20-4th-gen/
[^2]: Universal Audio (product page), 访问日期 2026-06-13. https://www.uaudio.com/products/volt-876