На третьем фото показанно с чего переделанно.
Frequency Range 55Hz to 20kHz +/-3dB at 2m on reference axis (-10dB at 45Hz and 30kHz)

Directional characteristics Within 2dB of response on reference axis. Up to 20kHz for +/-5° vertically. Up to 12kHz for +/-20° horizontally

Maximum Output 104dB spl on programme peaks under typical listening conditions

Characteristic Sensitivity Level 89dB spl at 1m on reference axis for pink noise input of 1W

Distortion

Measured at 1m on reference axis at mean spl of 90dB, anechoic conditions. Second harmonic: less than 1% from 70Hz to 20kHz. Third harmonic: less that 1% from 60Hz to 20kHz

Enclosure Type Closed box with third order low-frequency attenuation characteristic

Internal Volume 33 litres

Nominal Impedance 8 ohms

Maximum Amplifier Power normal 80W,

audiophile 150W

Minimum Amplifier Power normal 10W

Maximum Conditions Sinusoidal Input 20V rms from 80Hz to 2.5kHz reducing to 12V rms above 4kHz

Weight 9.4kg (20.7lb)