LM-3 vs Avantgarde Acoustic Duo
The Duo's sensitivity is 104 dB against the LM-3's 105 dB. Both share impedance (8Ω), high-frequency extension (20 kHz), and ways (3).
AI-generated product photo — not official manufacturer imagery.
LM-3
Line MagneticLoudspeakersHorns & WaveguidesSpeaker DriversFloorstanding SpeakersDiscontinued
Estimated price (community-sourced)
$22,000
Around — community and catalog average, updates slowly
About the LM-3
The Line Magnetic LM-3 is a large floorstanding passive horn loudspeaker system designed around classic Western Electric-style horn concepts. It is offered in at least two versions: an Alnico configuration and a Field Coil configuration. Reported online pricing for the Field Coil model is $15,177.24 before tax from one retailer, while other listings show much higher asking prices on the used market. The LM-3 is known for very high sensitivity and a large, statement-level cabinet intended for low-powered tube amplifiers.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 105 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 23 Hz - 20 kHz
Speaker Design
Driver configuration and enclosure design
- Configuration
- 3-way
- Driver Type
- horn
- Driver Size
- 18.11"
- Driver Count
- 3
- Enclosure Type
- horn
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 690 × 2080 × 900 mm (W × H × D)
Key Specifications
Sensitivity: 105 dB
Impedance: 8Ω
Frequency: 23-20000 Hz
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions