Line Magnetic LM-170IA Tube Integrated Amplifier

The Line Magnetic LM-170IA is a tube integrated amplifier with four KT170 output tubes and 2×130 watts — currently the strongest push-pull version in the range.

Why the LM-170IA?

KT170 is one of the newer, more powerful output tubes on the market. Line Magnetic uses it to build a powerhouse with 130 watts per channel that confidently drives even demanding speakers, without losing the familiar tube warmth.

What you hear

Controlled deep bass and plenty of power reserve, paired with the familiar warm Line Magnetic timbre — for listeners who want tube sound even at higher levels.

Who is the LM-170IA suited for? (and who isn't it for)

For larger rooms and speakers that need genuine power reserves. Let's be direct: at 45 kg, it's no lightweight — a sturdy rack and two helping hands during setup are essential.

Our verdict

The most powerful push-pull option in the range for anyone for whom the LM-150IA's 100 watts still isn't enough.

Technical data

• Circuit principle: tube integrated amplifier, push-pull, Class AB
• Output power: 2× 130 W
• Tube complement: 4× KT170, 3× 6922, 2× ECC82, 2× 6SN7EH
• Frequency response: 20 Hz – 35 kHz (-3 dB)
• THD: 1% (1 kHz)
• Signal-to-noise ratio: 89 dB
• Input sensitivity: 0.36 V (RCA) / 0.5 V (balanced) / 1 V (Pre-In)
• Input impedance: 100 kΩ
• Speaker outputs: 4 Ω / 8 Ω / 16 Ω
• Preamp output: 1.8 V (Sub/Pre)
• Power consumption: 750 W
• Dimensions (W×H×D): 430 × 248 × 490 mm
• Weight: 45 kg

Frequently asked questions

Does the LM-170IA have a preamp output?

Yes, a Sub/Pre output at 1.8 V is suitable for an active subwoofer or an external power amplifier.

Does the LM-170IA have a headphone output?

No.

How heavy is the LM-170IA?

45 kg — plan for two people and a sturdy rack when setting it up.

What's the difference between the LM-170IA and the LM-150IA?

The LM-170IA uses the more powerful KT170 tubes instead of KT150 and delivers 130 instead of 100 watts per channel.

Why buy the LM-170IA at HD Zürisee?

We advise you on the right speaker combination and handle delivery and setup of this powerful amplifier on request.

Goes well with

For speakers that benefit from the 130 watts, take a look at our speaker collection.