| 品牌：sounddevices | 型号：usbpre2 |
Sound Devices USBPre 2 Specs
| Form Factor | Tabletop |
| Display | 2 x Multi-Segment LED Meter |
| Channels of I/O | Analog: 2 Inputs / 2 Outputs Digital: 2 Inputs / 2 Outputs |
| Max Sample Rate/Resolution | 192 kHz / 24-Bit |
| Number of Mic Preamps | 2 |
| Input Level Adjustment | 2 x Knob |
| Solo/Mute | None |
| Pad | Mic: -15 dB (Switchable per Channel) |
| High-Pass Filter | Mic Input: 80 Hz, 12 dB/Octave |
| Expansion Slots | None |
Connectivity
| Analog Audio I/O | 2 x XLR 3-Pin Balanced Mic Input 2 x 1/4" TRS Balanced Line Input 1 x Stereo RCA Coaxial Unbalanced Aux Input 1 x 1/4" TRS Unbalanced Headphone Output 1 x 1/8" / 3.5 mm TRS Unbalanced Headphone Output 2 x XLR 3-Pin Balanced Mic/Line Output 1 x Stereo RCA Coaxial Unbalanced Aux Output |
| Phantom Power | +48 V, Selectable On/Off (Selectable on Individual Inputs) |
| Phantom Power Current | 10 mA per Channel |
| Digital Audio I/O | 1 x TOSLINK Optical S/PDIF Input 1 x TOSLINK Optical S/PDIF Output 1 x RCA Coaxial S/PDIF Input 1 x RCA Coaxial S/PDIF Output |
| Host Connection / USB | 1 x USB Type-B (Class-Compliant USB 2.0) |
| USB (Non-Host) | None |
| Sync I/O | None |
| Network I/O | None |
| MIDI I/O | None |
| Wireless Connectivity | None |
| Memory Card Slot | None |
Performance
| Frequency Response | 10 Hz to 40 kHz 卤0.5 dB (at 96 kHz, 1 kHz) |
| Gain/Trim Range | Mic Inputs: Up to +80 dBu Line Inputs: Up to +30 dBu |
| Max Input Level | Mic Inputs: -10 dBu +4 dBu (with Pad) Line Inputs: +28 dBu Aux Inputs: +9 dBu |
| Max Output Level | Aux Outputs: +8 dBu Headphone Outputs: +11 dBu XLR Outputs: +18 dBu (Balanced) |
| Impedance | Aux Inputs: 80 Kilohms (Balanced) Aux Outputs: 660 Ohms (Balanced) Line Inputs: 60 Kilohms (Balanced) Mic Inputs: 4 Kilohms (Balanced) XLR Outputs: 500 Ohms (Balanced, Line Level) 5 Ohms (Balanced, Mic Level) |
| Dynamic Range | A/D Converters: 114 dB (A-Weighted, 22 Hz to 22 kHz) D/A Converters: 112 dB (A-Weighted, 22 Hz to 22 kHz) |
| THD+N | System: 0.05% Aux Outputs: 0.009% Headphone Outputs: 0.05% |
| EIN | Mic Inputs: -127 dBu (150-Ohm Source) |
Digital Audio
| Sample Rates | 8 / 16 / 32 / 44.1 / 48 / 96 / 192 kHz |
| Sample Rate Conversion | None |
| Bit Depths | 8 / 16 / 24-Bit |
| Sync Sources | Internal or S/PDIF |
Compatibility
| OS Compatibility | macOS 10.4 or Later Windows XP Windows Vista Windows 7 (32-Bit, 64-Bit) Linux 2.6.0 or Later |
| Included Software | None |
| Compatible Software (Not Included) | Any Core Audio (Mac) Compliant Software |
| Supported Drivers/API & Plug-Ins | macOS Class-Compliant (No Driver Needed) Windows Class-Compliant (No Driver Needed) |
| Mobile Device Compatibility | None |
| Required Hardware | Available USB 1.1 Port or USB 2.0 Port USB Cable (Included) |
Power
| Power Requirements | USB Bus Power |
Physical
| Dimensions | 7.25 x 4.25 x 1.7" / 18.41 x 10.79 x 4.3 cm |
| Weight | 1.1 lb / 0.5 kg |
Packaging Info
| Package Weight | 2.385 lb |
| Box Dimensions (LxWxH) | 10.45 x 7.4 x 4.15" |
