* The use of electronic tube pre*stage circuit with high and low tone adjustment, so that the machine sound sweet, treble slim, bass mellow and powerful. * This machine adopts foreign famous factory audio special fever level electrolytic and non*polarity Philips (MKP) capacitor and high*precision gold resistance manufacturing, the use of Japanese imports (ALPS) audio special potentiometer, with music background quiet, low noise, no sound coloring and durable advantages.