Acoustics from the oldest German acoustic company Isophon (founded in 1928)

Specifications

Size: 1100 x 295 x 450 mm (HxWxD)
Weight: 47 kg
Three-band acoustics.
Frequency response: 25–20,000 Hz (+–3 dB)
Two 265 mm woofers (with upper and lower phase inverters).
Two 120 mm mid-range drivers and a 25 mm dome tweeter on the front panel are placed according to D. Apollito's scheme.
RMS power: -200 Watts.
Peak power: -320 Watts.
Resistance: -4 ohms.
The crossover frequency is 150.3000 Hz.