LehmannAudio Stamp digital power amplifier

This stereo power amplifier convinces with its inner values: music lovers are thrilled with the excellent sound quality of our Stamp. And with its compact dimensions, it amazes the audiophile world. Instead of another power amplifier behemoth, we present this more than serious amplifier that can stand up to any situation despite—or simply because of—its size.

Even if you own small, stylish speakers or listen to music through your second sound system, you can expect a lush and remarkably pure sound. The timbre will allow you to do just that without pushing you visually or sonically to the forefront.

A cutting-edge power amplifier

Like all our devices, the Stamp leaves Lehmannaudio with first-class components that produce a unique, faithful, and captivating sound. We use components from Nippon Chemicon, BC Components, and Epcos, among others. To ensure low-loss current delivery capability, we apply a 105 µm copper layer to both sides of the double-sided PCB.

The internal audio wiring is completely solid. It is soldered directly to the sockets and the circuit board to avoid additional plug-in connections. The oversized linear power supply is powered by a magnetically and statically shielded toroidal mains transformer. Measuring just 280 x 115 x 42 mm, the Stamp delivers up to 2 x 20 W into 4 ohms. Speakers with a sensitivity above 87 dB/1 W are perfect matches.

Setting up this refreshingly different power amplifier is a breeze: thanks to its modest dimensions, you can place it right next to your rig. Using the optional mounting kit, you can also easily attach it wherever it suits you best, such as under a desk or on a wall. By the way, if your speakers have bi-amp outputs, you can reconfigure the Stamp in a flash. For bi-amp operation, you'll need two Stamp power amps. When combined with our Linear, you get a puristic pre/power amplifier combination that will excite you.

FEATURES

Frequency response 12 Hz – 20000 Hz +/- 1 dB at 4 ohms

Gain 20dB

Maximum power 20 W per channel at 4 ohms

External dimensions W x D x H 110 mm x 280 mm x 44 mm

Weight 1.9 kg