Hermes PE-1 is a high-quality portable headphone amplifier with features such as compact size, lithium battery power supply, 3-channel active ground topology, precision virtual ground, and two types of operational amplifier combinations.
The Hermes PE-1 is a compact, battery‑powered headphone amplifier designed for portable media players, PCs, CD players and other audio sources. It features a three‑channel active ground topology that improves sound quality and can drive both low‑ and high‑impedance headphones.
The manual covers safety precautions, battery charging, assembly instructions, and detailed performance specifications such as frequency response, noise level, dynamic range and THD. It also explains the two versions of the amp (high‑performance and extended‑run‑time) and the recommended components for each. This manual is written in Chinese.
| Output current (high‑performance version) | ≈190‑250 mA |
|---|---|
| Battery capacity | 230 mAh |
| Charging current | 16 mA (safe constant‑current) |
| Frequency response | 40 Hz – 15 kHz |
| Noise level | -105.9 dB(A) |
| Dynamic range | 105.7 dB |
| THD | 0.0006 % |
| Stereo crosstalk | -96.34 dB |
The Hermes PE-1 uses a three‑channel topology: left, right and a ground (dynamic) channel.
A safe constant‑current of 16 mA is recommended for charging the battery.