У вашего броузера проблема в совместимости с HTML5
Specifications
Power output: 40 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 80kHz
Total harmonic distortion: 0.008%
Signal to noise ratio: 88dB (MM), 96dB (line)
Dimensions: 438 x 110 x 278mm
Weight: 6kg
Year: 1987 Made in Japan