About this article
This article contains specifications for all first-generation Volt desktop audio interface models.
(Volt 1, Volt 2, Volt 176, Volt 276, Volt 4, Volt 476, Volt 476P)Specifications for second-generation Volt desktop models are in their individual hardware manuals.
(Volt 1 Gen 2, Volt 2 Gen 2, Volt 4 Gen 2, Volt 2 Max, Volt 4 Max, Volt 4P Max)Volt 876 specifications are in the Volt 876 Hardware Manual.
All Monitor, Headphone, and Line outputs are DC coupled. All inputs are AC coupled.
Specifications are subject to change without notice.
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)