The Revox AX 5-4 is a loudspeaker model that was manufactured between 1976 and 1979 in Germany. It features a three-way design with a total of four speakers, providing an extensive frequency response. The speaker has a walnut finish with a dark foam front, combining aesthetics with audio performance. The dimensions are 390 mm in width, 650 mm in height, and 340 mm in depth, making it a substantial addition to any audio setup, with a weight of 21.5 kg. This model was priced around 900 DM at the time of its release. In terms of technical specifications, the AX 5-4 utilizes dual 200 mm cone woofers for bass, a 50 mm dome midrange driver, and a 25 mm dome tweeter. It can handle nominal power of 100 W and a music power of 150 W, with a recommended amplifier power range between 5 to 100 watts per channel. The speaker has an efficiency rating of 91 dB/W/m and a frequency response that spans from 25 Hz to 20 kHz, making it suitable for a wide range of audio playback. The crossover frequencies are set at 1,000 Hz and 4,300 Hz, with an impedance of 4 Ohms. Additionally, it incorporates overload protection for the tweeter system to prevent damage during high volume levels.
