Product Description
This audiophile-grade headphone amplifier is built following the classic Lehmann circuit design, with an added headphone output protection circuit to protect your high-value headphones from damage. It features a premium purple double-sided gold-plated PCB, which effectively reduces contact resistance and ensures pure audio signal transmission.
Carefully selected authentic high-end components: Original German WIMA capacitors, ERO decoupling capacitors, VISHAY BC 4700uF large filter capacitors and imported self-recovery red fuse. It uses genuine ST BD139, BD140, BC550, BC560 transistors and BB OPA2134PA op-amp. Matched with 718 military copper-pin metal film resistors, original Japanese ALPS-27 volume potentiometer and Swiss Neutrik 6.35mm headphone jack. Adopted Philips BYV27 high-speed rectifier and ON LM317 / LM337 linear regulation circuit to deliver ultra-stable power supply for cleaner sound performance.
Specifications
- Input Voltage: AC 115V or 230V
- Frequency Response: 10Hz - 35kHz
- Suitable Headphone Impedance: 8Ω ~ 2kΩ
- THD: <0.001% (6mW / 300Ω)
- Output Power: 200mW @300Ω, 400mW @60Ω
- Input: Analog audio signal
- Output: Dual 6.35mm headphone jacks + analog preamp output
- Dimension: 118mm45mm278mm (protruding parts not included)
Package Includes
1 × HI-END LEM Class A Headphone Amplifier
As the buyer, you should be aware of possible:
• Delays from customs inspection.
• Import duties and taxes which buyers must pay.
• Brokerage fees payable at the point of delivery.








