Lehmann Audio Stamp Power Amplifier

This device is a used device and is in good condition.

The Lehmann Audio Stamp is an exceptionally compact stereo power amplifier that delivers an exceptionally high level of sound despite its small size. It's designed for music lovers who don't want to miss out on the benefits of high-quality amplification in confined spaces. Whether on a bookshelf, right next to a record player, or behind a lowboard – the Stamp fits anywhere and surprises with its mature performance.

Sophisticated technology for pure musicality

Strictly selected, audio-grade components are used inside the power amplifier. A double-sided circuit board ensures particularly short signal paths, which improves impulse response and reduces distortion. The generously dimensioned toroidal transformer is double-shielded – against both stray magnetic fields and static influences – and forms the basis for the stable power supply of the power amplifier. Solid internal point-to-point cabling with high-quality conductor materials underscores the device's uncompromising quality.

Fine dynamics and control – even at low power

With 20 watts per channel at 4 ohms, the Stamp doesn't offer spectacular power reserves, but it impresses with excellent fine dynamics, transparent midrange reproduction, and a very natural sound. This amplifier's full potential is particularly evident when paired with high-efficiency speakers. The tonal balance is neutral, airy, and precise—ideal for smaller rooms, near-field applications, or minimalist two-way setups.

Flexible use – also suitable for bi-amping

The Lehmannaudio Stamp is not only suitable for classic stereo systems, but its dual mono design and compact dimensions also make it ideal for bi-amping or multi-channel setups. Combined with a suitable preamplifier or a high-quality DAC with volume control, it can be used to create an audiophile system that far exceeds the sonic expectations of this size class. An optional wall or furniture mount is available, allowing for concealed installation or invisible integration.

Technical data

• Amplifier type: Transistor, Class AB
• Channels: 2 (stereo)
• Power: 2 × 20 watts at 4 ohms
• Frequency response: 12 Hz – 20,000 Hz (±1 dB, 4 Ohms)
• Gain: 20 dB
• Power supply: toroidal transformer, magnetically & statically shielded
• Construction: Double-sided board, solid-core cabling
• Connections: RCA inputs, speaker terminals (screw/banana plugs)
• Dimensions (W × D × H): 110 × 280 × 44 mm
• Weight: approx. 1.9 kg
• Housing design: aluminum, optionally silver or black

Notes on used equipment