Lehmannaudio Linear - User Manual

Questions and Answers

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Crystal PerkinsAug 16, 2025
How to fix Lehmannaudio Amplifier if LED indicator is not on?
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  David SandersAug 16, 2025
  If the LED indicator on your Lehmannaudio Amplifier is not lit, first ensure the power supply or cord is properly connected to a power outlet. If it's connected, check that the device is turned on using the mains switch on the rear. If the problem persists, the fuse may be defective, so check the fuse. If the wire is broken, replace the fuse. If the fuse fails repeatedly, the device may be faulty and should be inspected by your dealer.
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jamesandersonAug 19, 2025
What to do if there is no headphone signal from Lehmannaudio Linear Amplifier?
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  William RosarioAug 19, 2025
  If you're not getting any headphone signal from your Lehmannaudio Amplifier, first ensure that the signal source is actually sending a signal to the device. Next, check the volume control and make sure it isn't set to the minimum. Finally, verify that your headphone is securely plugged into the headphone socket.
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gilbertandrewAug 22, 2025
Why is the Lehmannaudio Amplifier signal too soft?
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  Clifford ParrishAug 22, 2025
  If the signal from your Lehmannaudio Amplifier is too soft, try these steps: 1. Increase the volume control. 2. If possible, select a stronger signal source or raise the level of the current source. 3. Increase the gain factor, referring to the user manual and adjusting the DIP switch accordingly. 4. For USB versions, check that all PC internal controls are set to maximum.
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Shannon NewtonAug 25, 2025
What causes distorted signal on Lehmannaudio Linear?
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  John PatelAug 25, 2025
  If the signal from your Lehmannaudio Amplifier is distorted, first turn down the volume of the connected signal source. If that doesn't solve the problem, try using another headphone set to rule out a defective headphone. You can also try playing a different track or using another sound carrier to ensure the signal itself isn't distorted. Also, lower the gain factor and set the DIP switches accordingly, referring to the user manual.
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Troy LloydAug 27, 2025
Why is there no signal at the line output on my Lehmannaudio Linear Amplifier?
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  Victoria MillerAug 27, 2025
  If there's no signal at the line output of your Lehmannaudio Amplifier, first, ensure that a headphone is not plugged into the left headphone output; if it is, remove it or plug it into the right socket. Also, verify that the device is receiving a signal from the source. Finally, check that the volume control is not set to the minimum level.
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Paula ClaytonAug 31, 2025
How to troubleshoot Lehmannaudio Linear Amplifier signal on only one channel?
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  Caitlin Haley MDAug 31, 2025
  If you're only getting a signal on one channel from your Lehmannaudio Amplifier, first check the settings of both DIP switches and correct them according to the user manual if they are set unequally. Also, inspect the connection cable between the source and the headphone amplifier for any loose contacts, incomplete insertion, or defects, and replace it if necessary.
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John BenitezSep 3, 2025
Why does Lehmannaudio Amplifier headphone signal not respond to volume control?
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  estoneSep 3, 2025
  If the headphone signal on your Lehmannaudio Amplifier isn't responding to the volume control, it's likely that the cable from the signal source is plugged into the output sockets instead of the input sockets. Make sure to plug the cable into the correct input sockets.
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Antonio ThompsonSep 6, 2025
What to do if left and right channels are messed up on Lehmannaudio Linear?
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  terrijohnsonSep 6, 2025
  If the left and right channels are mixed up on your Lehmannaudio Amplifier, check all connection cables and reverse the channels if necessary. Also, make sure you're wearing the headphone correctly, in line with its labeling.
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David WilliamsSep 9, 2025
Why can I hear radio interference in the background on Lehmannaudio Linear?
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  Kimberly WoodsSep 9, 2025
  If you're hearing radio interference in the background with your Lehmannaudio Amplifier, the issue might be the signal cables. Try using suitable signal cables. Additionally, check the screen on the signal cable for defects and replace the cable if needed.
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Jason BurkeSep 12, 2025
What causes audible hum in Lehmannaudio Amplifier?
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  christopher23Sep 12, 2025
  If you're experiencing an audible hum with your Lehmannaudio Amplifier, it could be due to a ground loop caused by several connected devices. To resolve this, establish a correct earth connection. If necessary, contact an electrician.

Lehmannaudio Linear Specifications

General

Input Impedance	47 kOhms
Gain	0 dB, 10 dB, 20 dB (switchable)
Weight	1.5 kg
Output Impedance	5 Ohms
Headphone Output	6.3 mm jack
Power Consumption	5 W
Inputs	RCA
Amplifier Type	Solid State
Frequency Response	10Hz - 100kHz
Total Harmonic Distortion	< 0.001 %
Signal-to-Noise Ratio	>100dB
Power Supply	External power supply
Dimensions	110 mm x 280 mm x 44 mm
Outputs	Headphone