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Compact high-end headphone amplifier with discrete amplifier design, ALPS RK27 volume control and 2050 mW output power.
Compact high-end headphone amplifier with discrete amplifier design
The Violectric HPA V101 is the compact entry point into the Violectric headphone amplifier world – sharing the same low-noise, discrete amplifier circuitry and high operating voltage found in the larger models of the series. It effortlessly and cleanly drives low-, medium- and high-impedance headphones (16–600 Ω).

Solid black anodized aluminum housing, toroidal transformer and discrete amplifier circuitry – the HPA V101 brings the audiophile Violectric signature into a compact, affordable format.
Not sure if the Violectric HPA V101 is the right model for you? In our The Great Violectric Model Comparison we put every model in the lineup head-to-head.
The HPA V101 is the right choice for anyone who wants an affordable, especially compact entry into high-quality headphone amplification without jumping straight into the balanced True-Balanced class. Ideal for the desktop or as a first upgrade from a built-in headphone jack – with enough headroom to confidently drive high-impedance headphones too.
| Inputs | 1× XLR (balanced), 1× RCA (unbalanced) |
| Max. input voltage | +21 dBu |
| Input impedance | 10 kΩ |
| Nominal input sensitivity | +6 dBu |
| Amplifier gain | +8 dB |
| PRE-GAIN | –18 / –12 / –6 / 0 / +6 / +12 / +18 dB |
| Frequency range | 0 Hz – 150 kHz (–0.5 dB) |
| Output impedance | < 0.125 Ω |
| Damping factor | > 400 |
| Dynamic range (600 Ω) | > 129 dB (A-weighted) |
| Noise | < –101 dBu (A-weighted) |
| THD+N (1 kHz / 2×10 V / 100 Ω = 1 W) | < –100 dB / < 0.001 % |
| THD+N (1 kHz / 2×18 V / 600 Ω = 0.5 W) | < –102 dB / < 0.0008 % |
| Crosstalk | < –110 dB (1 kHz) / –98 dB (15 kHz) |
| Headphone outputs | 2× 6.3 mm (1/4") jack |
| RL (Ω) | Ua (V) | Pa (mW) |
| 600 | 18.9 | 600 |
| 300 | 17.8 | 1050 |
| 100 | 13.2 | 1750 |
| 50 | 9.2 | 2050 |
| 32 | 6.7 | 1450 |
| 16 | 3.5 | 770 |
| Mains voltage | 230 V AC / 115 V AC, max. 10 VA |
| Case | Aluminum, black anodized |
| Dimensions | 168 × 47 × 125 mm (W × H × D) |