Three-dimensional stereo effector circuit diagram

Using two speakers to produce a three-dimensional (3D) stereo effect with a strong surround feeling has become a hot spot in the market because of its low price and high quality. This circuit integrated circuit is Yamaha's YSS247. The characteristic of YSS247 is that it can provide high-fidelity center sound and stable stereo positioning; when reproducing sounds moving in the horizontal direction, such as aircraft flying or taking off and landing, the sense of space makes the listener feel like they are actually there. territory. It can provide sound sources from LD, CD , VCD , FM, Walkman, Tape, PC, etc. Especially when living conditions are limited and the distance between the two speakers is not large, the 3D effect it produces is particularly outstanding. But the mono signal does not produce false stereo, but passes through it. In the circuit, W1 and W1' are sound field broadening adjustments; W2 and W2' are treble adjustments; W3 and W3' are bass adjustments; and potentiometers K and K' are mono pass-through selections. The tone control performance is: plus or minus 10dB at bass 100Hz, plus or minus 10dB at 10kHz treble.

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