Catalog > Semiconductors > Integrated Circuits M51521AL IC Pre AMP Dual SIP8 Part No: M51521AL 6.21 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Supply voltage: 7 V typical High input impedance: Approx. 150 kΩ Voltage gain: Approx. 65 dB Low distortion audio amplification Low quiescent power consumption Wide audio frequency response Dual-channel audio processing capability