LS3/5X Performance Data

Technical Specifications

System: Compact closed-box two-way passive loudspeaker.
Bass/Mid Driver: 130mm, ultra high excursion and low distortion. Aluminium diaphragm.
Tweeter: Waveguide loaded 25mm aluminium ceramic dome.
Axial Frequency Response: 75Hz to 20kHz ±1.5dB.
Sensitivity: 81dB for 2.83V @ 1m (2π space).
Nominal Impedance: 8 Ohms (minimum 6.5 Ohms @ 150Hz).
Low Frequency Cut-off: -3dB @ 62Hz, -6dB @ 46Hz.
Low Frequency System Q: 0.65 @ 57Hz.
Maximum SPL: 98dB @ 1m (>50Hz, 2π space).
Maximum LF Driver Linear Excursion: ±9.8mm.
Group Delay: <5mS above 50Hz.
Harmonic Distortion: <0.3% above 150Hz. <0.1% above 1kHz (85dB @ 1m).
Crossover: Symmetrical 3rd order (electrical).
Crossover Frequency: 1400Hz.
Input Terminals: Jantzen binding posts.
Power Handling: Suitable for use with amplifiers rated above 25 Watts per channel.
Cabinet: LS3/5A compliant birch-plywood carcass with hardwood fillets and bitumen panel damping. 15mm Permali driver panel with 15mm HIMACS waveguide panel.
Dimensions: 31cm x 19.4cm x 17.4cm (12.2in x 7.6in x 6.9in)
Net Weight: 7.1kg (15.7lbs)