Lindemann Limetree Headphone Amplifier
Lindemann Limetree Headphone Amplifier
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The Limetree HEADPHONE is a high-class headphone amplifier for all music lovers who want to get a higher resolution and more tonal colors from their headphones.
It amplifies purely in the analog domain for superior quality with the smallest of signals and/or when listening at soft volume. High-current output stages in class-A technology guarantee a reproduction which is both punchy and precisely resolved. For true connoisseurs!
Features
Beside three inputs to connect e.g. network players, CD players or a phono preamp, the Limetree HEADPHONE offers a headphone output and a line output to control active speakers or a power amplifier.
Almost any headphones of 20 to 300 ohms can be driven with great sounding results. A setting device on the bottom of the housing allows to adjust the volume level to the respective headphone impedance.
Technology
We have put a good deal of detail work into the circuit design. Very short signal paths, finest components and an extremely clean supply voltage make this amplifier what it really is: an essential tool for headphone freaks.
The analog volume control comes from the studio sector and is currently representing the measure of all things. It ensures a very high resolution and minimal losses with low-level signals.
The current amplification is provided by completely discrete "diamond" buffers working in a non-feedback class-A mode. In terms of sound these are wonderfully agile and detailed and deliver very good dynamics values.
As power supply we use a medical grade wall plug transformer which ensures a particularly good isolation from line disturbances. Together with the elaborated onboard filtering and special voltage regulators, we were able to realize an exceptionally low-noise power supply with a ripple voltage below 10 µV.
Technical Specifications
| Measurement conditions | 22 °C, 230 V mains voltage, Audio Precision AP2722 |
| Power consumption | 0.15 W standby, 2.6 W operation |
| Dimensions (W x H x D) | 107 x 40 x 130 mm (4.2 x 1.6 x 5.1 in) |
| Weight | 295 g (10.4 oz) |
| Inputs | 3 RCA inputs |
| Outputs | 1 headphone output, 1 line output |
| Gain | 12 dBs (10 kOhms load) |
| Distortions | <0.001 % (at 0.5 V output and 10 kOhms load) |
| S/N ratio | >98 dBV (A-weighted, 600 ohms termination) |
| S/N ratio MC | >78 dBV (A-weighted) |
| Frequency response | 1 Hz - 300 kHz (-3 dB) |
| Input impedance MC | adjustable in six steps (100, 130, 160, 200, 400 and 800 ohms) |
Manufacturer Site
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