Line Magnetic LM-34IA

Line Magnetic LM-34iA is an integrated tube amplifier equipped with the highly regarded EL34 tubes in the output stage. In addition to its three line inputs, it also includes a dedicated pre-stage input. This function allows the signal to go directly to the stage without being affected by the volume adjustment, giving a more refined power stage function. Consequently, the amplifier has an impressive output power of 40 watts per channel thanks to the four EL34 tubes in the output. In addition, a remote control is included, something that does not always come with all tube amplifiers, as well as a protective top cap for the tubes.

Here are some highlights and features:

• A built-in amplifier with EL34 tubes in the output, which provides a warming and pleasant sound character.
• Built-in pre-amp input to connect to home theater equipment.
• Impressive build quality with a weight of almost 20 kilograms.
• Use of carefully selected components and direct connection between components to ensure high performance.
• Possibility to customize the sound by changing the tubes.
• Soft Start function to increase the life of the pipes.
• Includes a remote control and a cap for the tubes.

Line Magnetic are known for their expertise in tube-based audio equipment, and their LM-34iA amplifier is no exception. It offers a powerful and warm sound character that really highlights the music and provides an engaging listening experience.

The amplifier uses dual 12AU7 line tubes and a 12AX7 tube in the input to handle the signal and the rectification. In the output there are double EL34 tubes per side that work in push-pull configuration and provide an output of 40 watts per channel. Tube-based amplifiers have the advantage of being able to deliver powerful sound before going into compression at high volumes, giving a more forgiving sound character than transistor amplifiers.

A useful feature is the ability to adjust the bias of each power tube individually. A simple meter shows optimal settings, and there's even a switch if you want to use KT-88 tubes instead. This gives you the flexibility to customize the sound to your preferences.

The quality of the transformers is critical to the sound reproduction of a tube amplifier, and the LM-34iA uses specially designed wide-bandwidth EI transformers. You can also adjust the impedance to match your speakers, either 4 or 8 ohms.

This amp is built with care and uses high-quality components, including RealCap capacitors and an ALPS volume potentiometer. The connection is made with point-to-point wiring. In addition, it has a Soft Start function that protects the tubes during start-up by gradually increasing the current during the first 30 seconds.

Finally, users have the option to upgrade the sound by replacing the included Shuguang tubes with higher quality options such as NOS tubes. This provides an additional opportunity to fine-tune the sound and get even more out of this already impressive tube amplifier.

Compatible Tubes:

- 12AX7: 12AX7EH, ECC83, E83CC, CV4004, ECC803, 5751

- 12AU7: ECC82, 12AU7EH, 5814, 6189, CV4003

- EL34: 6CA7

• Amplifier power: 2x40 Watt RMS
• Frequency range: -1.5 dB: 10 - 50,000 Hz
• Inputs: 1 x Pre Amp In, 3 x stereo RCA
• Input impedance: 100 kOhm
• Signal/noise ratio: 88 dB
• Distortion: 1% (1kHz)
• Included accessories: Remote control, Top cover
• Power consumption: 150 Watt (idle)
• Dimensions: 377 x 190 x 345 mm (W x H x D)
• Weight: 20 kg