Coda II (2) SP3004

Budget 2 way 8Ω bookshelf loudspeakers in black or simulated walnut veneer wooden cabinets with removable textile grilles, with power handling of 10 - 50 watts.

Specification
Frequency range   65Hz to 20kHz ±3dB at 2m on reference axis
                           (-10dB at 45kHz and 25kHz)
Directional characteristics
                           Within 2dB of response on reference axis
                           up to 20kHz for ±5° vertically
                           up to 10kHz for ±20° horizontally
Maximum output  104dB spl on programme peaks under typical listening conditions
Characteristic sensitivity level
                           87dB spl at 1m on reference axis for pink noise input of 1W
Distortion Measured at 1m on reference axis at mean spl of 90dB, ancehoic conditions
                           Second harmonic
                           less than 1% from 85Hz to 20kHz
                           Third harmonic:
                           less than 1% from 150Hz to 20kHz
Enclosure type     Closed box with third order lf attenuation characteristic
Internal volume           19 litres
Nominal impedance     8 Ω
Programme rating       50W
Maximum continuous  20V rms from 20Hz to 2kHz reducing to 8V rms from
sinusoidal input           4kHz to 20kHz
Minimum amplifier       10W
requirements

Here you find 36 models, 35 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from KEF Electronics; Tovil, Maidstone, Kent