Line Magnetic LM-84IA Tube Integrated Amplifier

The Line Magnetic LM-84IA is a compact tube integrated amplifier with four EL84 output tubes, 2×12 watts of power and a built-in headphone output.

Why the LM-84IA?

Small, but with the same handcraft as its bigger siblings: point-to-point wiring, custom-wound output transformers, a 30-second soft-start protection. The built-in headphone output makes it a dual-purpose talent equally suited to the desk and the living room.

What you hear

EL84 in Class AB delivers a light-footed, detail-loving tone – ideal for highly efficient bookshelf speakers at short to medium distance, and a surprisingly mature tube warmth over headphones.

Who is the LM-84IA for? (and who it isn't)

For small to medium-sized rooms and efficient speakers, or as a headphone solution with tube sound. Straight talk: 12 watts per channel is honestly not a lot – it gets tight with inefficient floorstanders in large rooms. Ask us whether your speakers are a good match.

Our verdict

The entry point into the Line Magnetic world for small rooms, with a headphone output you rarely find in this class.

Technical specifications

• Circuit design: tube integrated amplifier, push-pull, Class AB
• Output power: 2× 12 W
• Tube complement: 4× EL84, 12AX7, 12AU7
• Frequency response: 20 Hz – 30 kHz (±1.5 dB)
• THD: 1%
• Signal-to-noise ratio: 87 dB
• Input sensitivity: 250 mV (line) / 1000 mV (Pre-In)
• Input impedance: 100 kΩ
• Speaker outputs: 4 Ω / 8 Ω
• Output level: fixed, with volume control via remote
• Headphone output: yes
• Subwoofer output: yes
• Inputs: 2× RCA (CD, line)
• Dimensions (W×H×D): 360 × 160 × 290 mm
• Weight: 13.75 kg

Frequently asked questions

Does the LM-84IA have a headphone output?

Yes, a headphone output is built in – ideal for tube sound at the desk, with no separate headphone amp needed.

Is the power enough for floorstanding speakers?

That depends heavily on their sensitivity. For most floorstanding speakers, a more powerful amp from the range is the better choice – for efficient bookshelf speakers, the LM-84IA is plenty.

Can I connect an active subwoofer?

Yes, a dedicated subwoofer output is provided.

Does it come with a remote control?

Yes, the volume can be adjusted with the included remote control.

Why buy the LM-84IA at HD Zürisee?

We help you put this small amplifier to proper use – whether at the desk with headphones or with compact bookshelf speakers. Talk to us, we'll give you honest advice, even if another model is the better fit.

Pairs well with

For the headphone connection, it's worth taking a look at our headphone collection, and for speakers, our speaker collection.