Volt Specification Notes
- Specifications apply to Volt desktop audio interface models (Volt 1, Volt 2, Volt 176, Volt 276, Volt 4, Volt 476, Volt 476P) except where noted.
- Volt 876 specifications are in the Volt 876 Hardware Manual. Specifications are subject to change without notice.
- All Monitor, Headphone, and Line outputs are DC coupled. All inputs are AC coupled.
System
I/O Complement
Mic/Line/Instrument Combo XLR/TRS Inputs
- Volt 1: 1
- Volt 2: 2
- Volt 4: 2
- Volt 176: 1
- Volt 276: 2
- Volt 476: 2
- Volt 476P: 4
Additional Line Inputs
- Volt 4: 2
- Volt 476: 2
- Not available on Volt 1, 2, 176, 276, 476P
Line Outputs
- Volt 4: 4
- Volt 476: 4
- Volt 476P: 4
- Not available on Volt 1, 2, 176, 276
Monitor Outputs
- All models: 2
Headphone Outputs
- Volt 476P: 2
- All other models: 1
Connectivity
- USB: One USB 2.0 port (USB Type-C connector)
- MIDI: In/Out (two 5-pin DIN connectors)
A/D–D/A Conversion
- Supported sample rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
- Bit depth: 24 bit
Analog I/O
Mic, Line & Instrument Input Controls
Vintage Mode
- Available on: All Volt models
- Options: ON / OFF
76 Compressor Presets
- Available on: Volt 176, 276, 476
- Options: VOC, GTR, FAST, OFF
- Available on: Volt 476P
- Options: VOC, GTR, FAST (no OFF preset)
76 Compressor Preset Timing
- VOC: 2 ms attack, 300 ms release, 6:1 ratio
- GTR: 1.5 ms attack, 700 ms release, 6:1 ratio
- FAST: 30 µs attack, 35 ms release, 6:1 ratio
Microphone Inputs
- Frequency response: 20 Hz – 20 kHz, ±0.1 dB
- Dynamic range (A-weighted): 112 dB
- THD+N (1 kHz @ –1 dBFS): –103 dB (0.0007%)
- Equivalent input noise (150 Ω, A-weighted): –127 dBu
- Maximum input level: 9 dBu
- Input impedance: 3 kΩ
- Available gain: 55 dB
- Phantom power: +48V (switchable)
- Connector: XLR Female, pin 2 positive
Instrument Inputs
- Frequency response: 20 Hz – 20 kHz, ±0.05 dB
- Dynamic range (A-weighted): 111 dB
- THD+N (1 kHz @ –1 dBFS): –84 dB (0.006%)
- Maximum input level: 12.5 dBu
- Input impedance: 1 MΩ
- Gain range: 55 dB
- Connector: ¼" TS unbalanced
Line Inputs (Inputs 1–2)
- Frequency response: 20 Hz – 20 kHz, ±0.05 dB
- Dynamic range (A-weighted): 111 dB
- THD+N (1 kHz @ –1 dBFS): –102 dB (0.0008%)
- Maximum input level: 22 dBu
- Input impedance: 15 kΩ
- Gain range: 55 dB
- Connector: ¼" TRS balanced or TS unbalanced
Line Inputs 3–4 (Volt 4 and 476 only)
- Frequency response: 20 Hz – 20 kHz, ±0.05 dB
- Dynamic range (A-weighted): 113 dB
- THD+N (1 kHz @ –1 dBFS): –105 dB (0.0006%)
- Maximum input level: 18 dBu
- Input impedance: 10 kΩ
- Connector: ¼" TRS balanced or TS unbalanced
Monitor & Line Outputs
- Frequency response: 20 Hz – 20 kHz, ±0.1 dB
- Dynamic range (A-weighted): 110 dB
- THD+N (1 kHz @ –1 dBFS): –102.5 dB (0.00075%)
- Maximum output level: 15 dBu
- Output impedance: 100 Ω
- Connector: ¼" TRS balanced or TS unbalanced
Stereo Headphone Outputs
- Frequency response: 20 Hz – 20 kHz, ±0.1 dB
- Dynamic range (100 kΩ load, A-weighted): 110 dB
- THD+N (1 kHz @ –1 dBFS, 300 Ω): –100 dB (0.001%)
- Max output power into 32 Ω: 84 mW per channel
- Max output power into 300 Ω: 22 mW per channel
- Max output power into 600 Ω: 12 mW per channel
- Connector: ¼" TRS Stereo
Electrical
- External DC power input: Barrel connector, 5.5mm OD / 2.1mm ID, IEC 60130-10 Type A
- Power supply requirements: +5VDC, Center Positive (+)
Power Consumption
- Volt 1: 2.8 W max, 1.9 W typical
- Volt 2: 4.2 W max, 2.5 W typical
- Volt 4: 6.2 W max, 4.3 W typical
- Volt 176: 3.2 W max, 2.3 W typical
- Volt 276: 5.0 W max, 3.5 W typical
- Volt 476: 6.7 W max, 4.9 W typical
- Volt 476P: 10.6 W max, 6.6 W typical
Environmental
- Ambient temperature range: 32°–104°F (0°–40°C)
Mechanical
Chassis Dimensions (including knobs and protrusions)
- Volt 1: 5.7 × 5.1 × 2.0 in (14.5 × 13.0 × 5.0 cm)
- Volt 2: 6.9 × 5.1 × 2.1 in (17.4 × 13.0 × 5.3 cm)
- Volt 4: 7.9 × 5.1 × 2.0 in (20.1 × 13.0 × 5.0 cm)
- Volt 176: 5.9 × 5.1 × 2.6 in (15.0 × 13.0 × 6.5 cm)
- Volt 276: 7.3 × 5.1 × 2.6 in (18.4 × 13.0 × 6.6 cm)
- Volt 476: 8.4 × 5.2 × 2.6 in (21.2 × 13.2 × 6.6 cm)
- Volt 476P: 10.3 × 5.2 × 2.6 in (26.2 × 13.2 × 6.6 cm)
Shipping Box Dimensions
- Volt 1: 7.8 × 6.9 × 3.7 in (19.9 × 17.5 × 9.5 cm)
- Volt 2: 9.0 × 6.9 × 3.7 in (22.8 × 17.5 × 9.4 cm)
- Volt 4: 9.6 × 8.46 × 5.24 in (24.8 × 21.5 × 13.3 cm)
- Volt 176: 8.1 × 7.1 × 4.2 in (20.6 × 18.2 × 10.6 cm)
- Volt 276: 9.5 × 6.9 × 4.0 in (24.1 × 17.5 × 10.2 cm)
- Volt 476: 9.5 × 6.9 × 5.2 in (24.1 × 17.5 × 13.3 cm)
- Volt 476P: 11.8 × 8.46 × 5.59 in (30.0 × 21.5 × 14.2 cm)
Weight
- Volt 1: 1.2 lbs (0.55 kg) bare; 1.9 lbs (0.9 kg) shipping
- Volt 2: 1.4 lbs (0.65 kg) bare; 2.2 lbs (1.0 kg) shipping
- Volt 4: 1.7 lbs (0.7 kg) bare; 2.7 lbs (1.2 kg) shipping
- Volt 176: 1.4 lbs (0.65 kg) bare; 2.2 lbs (1.0 kg) shipping
- Volt 276: 1.8 lbs (0.79 kg) bare; 2.6 lbs (1.2 kg) shipping
- Volt 476: 2.0 lbs (0.92 kg) bare; 3.5 lbs (1.6 kg) shipping
- Volt 476P: 2.5 lbs (1.1 kg) bare; 3.5 lbs (1.6 kg) shipping
Package Contents
- Volt Audio Interface Unit
- USB Type-A to Type-C cable
- USB Type-A to DC Barrel cable (except Volt 476, 476P)
- External Power Supply Unit with AC adapter kit (Volt 476 and 476P only)