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Headphones amplifiers — Lehmann Audio Linear D
Description, images, technical data and specifications
Lehmann Audio Linear D
Image source - © Lehmann Audio
The Linear D is a headphone amplifier from Lehmann Audio, built with switchable gain settings and substantially more power than the compact Drachenfels.
Position in line
It belongs to Lehmann Audio's Linear series, which sits above the brand's compact entry model.
Key specs that matter
Maximum power is 400 mW into 60 ohms, dropping to 200 mW into 300 ohms. Rated bandwidth is 10 Hz to 35 kHz. Gain is switchable across 0, 10, 18 and 20 dB settings. Distortion is under 0.001% at 1V RMS into 300 ohms, well below the Drachenfels' figure. Signal-to-noise exceeds 100 dB. At 110 x 280 x 44 mm and 1.5 kg it is a larger chassis than the entry model.
Pairing
The switchable gain settings suit both efficient and less sensitive headphones without an external attenuator, useful for an owner of several headphones with differing sensitivity.
Alternatives
The Linear SE is the closest comparison, sharing near-identical specifications in a larger, heavier chassis.
Position in line
It belongs to Lehmann Audio's Linear series, which sits above the brand's compact entry model.
Key specs that matter
Maximum power is 400 mW into 60 ohms, dropping to 200 mW into 300 ohms. Rated bandwidth is 10 Hz to 35 kHz. Gain is switchable across 0, 10, 18 and 20 dB settings. Distortion is under 0.001% at 1V RMS into 300 ohms, well below the Drachenfels' figure. Signal-to-noise exceeds 100 dB. At 110 x 280 x 44 mm and 1.5 kg it is a larger chassis than the entry model.
Pairing
The switchable gain settings suit both efficient and less sensitive headphones without an external attenuator, useful for an owner of several headphones with differing sensitivity.
Alternatives
The Linear SE is the closest comparison, sharing near-identical specifications in a larger, heavier chassis.
Specifications
Model name
Linear D
Maximum Power, 32 Ohms (mW RMS per channel)
N/A
Maximum Power, 50 Ohms (mW RMS per channel)
400 (60 Ohms)
Maximum Power, 300 Ohms (mW RMS per channel)
200
Maximum Power, 600 Ohms (mW RMS per channel)
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
35 000
Gain (dBu)
0, 10, 18, 20
THD (% at 1V RMS, 300 ohms)
< 0.001
Signal to Noise Ratio (dB)
>100
IMD (%, CCIR, 300 Ohms)
N/A
Crosstalk (dB, 20Hz-20KHz, 300 Ohms)
N/A
Output Impedance (Ohms)
pre-out 50: phones out: 5
Dimensions (mm)
110 x 280 x 44
Weight (kg)
1.5
Official link
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