• Description: Two-way, sealed-box, stand-mounted loudspeaker
• Drive-units: 0.75“ (25mm) Mylar-dome tweeter, 4.5” (110mm) Bextrene-cone woofer.
• Crossover frequency: 3kHz. Crossover slopes: not specified.
• Frequency response: 80Hz-20kHz ±3dB at 1m with grilles on.
• Sensitivity: 82dB/W/m.
• Nominal impedance: 16 ohms (1977-1984); 10 ohms (1989 onward).
• Amplifier requirements: 50W maximum.
• Dimensions: 12“ H by 7.5” W by 6.25“ D.
• Enclosure volume: 5 liters.
• Weight: 11.7 lbs each.

• Manufacturers: Rogers Loudspeakers Ltd., Mitcham, Surrey, England (1977, 1989); Spendor loudspeakers, Redhill, Surry, England (1984); Harbeth Acoustics, Haywards Heath, West Sussex, England (1993). KEF, Maidstone, Kent, England (1996). Stirling Broadcast, Somerset, England. Web: www.stirlingbroadcast.net (2007).

The Design of the miniature Monitoring loudspeaker type LS3/5A

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