ESC

Monitor Royal 12

BrandTannoy
FunctionSpeaker
Produced1974-197?
CountryUnited Kingdom
Model IDMonitor Royal 12/60
Form FactorPart
Signal PathPassive Hardware
Dimensions31.4 × 31.4 × 19.1 cm (W × H × D)
WeightDriver: 8kg Crossover: 0.821kg
Replacement Woofer ConeP/N 7900-0009
Replacement Tweeter DiaphragmP/N 7900-0205
Driver TypeDual-Concentric Full-Range
Frequency Response20Hz-20kHz
Sensitivity90.5dB/W/m (In minimum size cabinet in 56m³ room)
Rated Power (Continuous Program)60W
Impedance (Nominal, System)8Ω
Impedance (Minimum, System)5Ω
Polar Distribution (60°)-3dB at 10kHz
IMD<2%
Crossover Frequency1kHz
Crossover Slope12dB/Oct
Impedance (Woofer)8Ω
Voice Coil Resistance (Re) (Woofer)5.5Ω
Impedance (Tweeter)16Ω
Voice Coil Resistance (Re) (Tweeter)10.5Ω
Voice Coil Diameter (Woofer)2" (50.8mm)
Voice Coil Diameter (Tweeter)2" (50.8mm)
Free Air Resonant Frequency (Fs) (Woofer)20Hz
Effective Radiating Area (Sd) (Woofer)550cm²
Woofer Cone MaterialFelted Paper, Girdacoustic Struts
Surround Material"Tannoplas" Foam
Compression Diaphragm MaterialDuralumin
WaveguidePepperPot
Magnet MaterialAlcomax
Magnet Assembly Weight3.4kg
Finish (Cover)High Impact Plastic (Royal Blue)
Finish (Frame)Gold Stove Enamel
Finish (Magnet Assembly Parts)Cadmium Plate
Connections
  • Input · Binding Post
Controls
  • Treble Energy (Shelving) (1kHz-20kHz) · Rotary Switch · -2 to 2, 5 Steps
  • Treble Roll-Off (Slope) (5kHz-20kHz) · Rotary Switch · 4 Steps
NotesCanadian (perhaps also Australian) market specific model of the Monitor High Performance Dual Model 315 (12"). Also marked as HPD/310.