Line Magnetic LM-34IA black

Line Magnetic LM-34IA Noir: Unrivaled Sound Quality

The Line Magnetic LM-34IA is a testament to the power of tube technology, delivering an audio experience that is both rich and immersive. This Class AB integrated stereo amplifier is equipped with EL34 output power tubes and 12AX7 and 12AU7 input tubes, providing a robust 40W per channel.

The amplifier’s total harmonic distortion (THD) is only 1% at 1kHz, ensuring clear and crisp sound. The signal-to-noise ratio is 88dB, further enhancing the clarity of the audio output. The frequency response ranges from 10 to 50KHz, allowing a wide range of sounds to be reproduced accurately.

Tube Technology

The amplifier comes standard with EL34 output tubes, but it also features a tube selector. This allows the user to replace the standard EL34 with a range of power tubes, including the KT series (KT66, KT70, KT77, KT88, KT90, KT100) and others such as the 6CA7, 6L6, and 6550. This flexibility allows for a high degree of customization, enabling users to tailor the sound to their personal preferences.

Connectivity

The LM-34IA Noir offers three line-level inputs and one preamp/direct input that bypasses the volume control directly to the power amplifier. This allows for a wide range of connectivity options, ensuring that the amplifier can be seamlessly integrated into any audio setup. The amplifier also features a SoftStart circuit and time delay (30 seconds), ensuring a smooth and safe startup.

Technical Specifications

General Specifications

• Class AB amplifier with 2 × 40 W effective power (RMS)
• Total Harmonic Distortion (THD): 1% (1 kHz)
• Signal-to-noise ratio: 88 dB (A-weighted)
• Bandwidth (-1.5 dB): 10 - 50,000 Hz
• Line input sensitivity: 200 mV (integrated mode)
• Input impedance: 100 kΩ
• Speaker load impedance: 4, 8 Ω

Tube Configuration

• Input stage: 1 × 12AX7 and 2 × 12AU7
• Power stage: 4 × EL34
• Steatite tube sockets
• Bias adjustment via built-in voltmeter

Components

• Hand-wound and shielded transformers
• Original Japanese ALPS motorized potentiometer
• Realcap coupling capacitors
• Removable metal tube protection cage
• 30-second power-on delay

Connectivity

• 3 × RCA line inputs (pair)
• 1 × preamplifier input
• 2 × speaker terminals (banana plugs) 4, 8 Ω

Compatible Tubes

• 12AX7: 12AX7EH, ECC83, E83CC, CV4004, ECC803, 5751
• 12AU7: ECC82, 12AU7EH, 5814, 6189, CV4003
• EL34: KT66, KT70, KT90, KT100, 6550

Physical Characteristics

• Dimensions (W × H × D): 377 × 190 × 345 mm
• Weight: 20 kg

Included Accessories

• 2 × fuses
• 1 × remote control
• 1 × detachable power cord
• 1 × manual

Warranty

• Device: 2 years parts and labor
• Tubes: 6 months
• Non-transferable, reserved for the original purchaser