Line Magnetic LM-212 Reference Integrated Amplifier

The Line Magnetic LM-212 is the brand's reference model — a single-ended integrated amplifier with the rare 212 transmitter tubes and 2×50 watts of output power.

Why the LM-212?

212 tubes come from transmitter technology and are used in only very few high-end amplifiers. That's why Line Magnetic builds a 135.75 kg statement device around them, with KT88 driver tubes and correspondingly elaborate construction. The trade press describes the brand's build quality overall as "finished to an extremely high standard, period" (Christiaan Punter, HiFi-Advice, 2018).

What you hear

Single-ended 212 sound in its purest form — big, powerful, and with a tube presence rarely heard in this form.

Who is the LM-212 suited for? (and who isn't it for)

For collectors and enthusiasts seeking the extraordinary character of the 212 tube, who have the space and the structural load capacity for 135.75 kg. Let's be direct: this is a niche product for connoisseurs, not an everyday amplifier — for most listeners, the smaller models in the range are the better entry point.

Our verdict

The flagship for tube enthusiasts who know exactly what they're looking for.

Technical data

• Circuit principle: tube integrated amplifier, single-ended, Class A
• Output power: 2× 50 W
• Tube complement: 2× 212, 2× KT88, 2× 12AX7
• Frequency response: 20 Hz – 35 kHz
• THD: 5%
• Signal-to-noise ratio: 86 dB
• Input sensitivity: 150 mV
• Input impedance: 100 kΩ
• Speaker outputs: 4 Ω / 8 Ω / 16 Ω
• Power consumption: 750 W
• Dimensions (W×H×D): 500 × 555 × 610 mm
• Weight: 135.75 kg

Frequently asked questions

Why is the LM-212 so heavy?

Large mains and output transformers for the rare 212 tubes bring it to a total weight of 135.75 kg.

Does the installation site need special load-bearing capacity?

At this weight, absolutely check beforehand — we're happy to advise you on placement and structural load.

Does the LM-212 have a headphone output?

No.

Are replacement 212 tubes available?

On request through our supplier — get in touch with us directly if you need them.

Why buy the LM-212 at HD Zürisee?

With a device in this class, personal advice matters — from placement to speaker selection — and we take the time for that.

Goes well with

For reference speakers that suit the LM-212, a consultation is worthwhile — a look at our speaker collection gives you a first overview.