1、MULTIFUNCTION: Operational amplifier is suitable for audiophile grade sound amplifiers, preamps, CDs, amps, sound amplifiers, DAC output buffers, low pass filters, buffers. As well as precise instruments, fast data acquisition, DAC output amplification, photoelectric, etc. 2、NEW AND UPGRADED VERSION: Dual operational amplifier has a clean sound bottom, a natural sense of hearing, high resolution, dynamic, deep low frequency dive, full mid frequency, warm, round and sweet vocals, high frequency transparent, delicate and supple. 3、WIDE RANGE OF VOLTAGE APPLICATIONS: Dual operational amplifier module works well from plus or minus 4V to plus or minus 18V. Larger output current, the output current of the general op amp is about 40MA, the maximum output current of this op amp is 50MA. 4、PERFECT MATCH: Operational amplifier based on for Marantz HDAM circuit. The input adopts the warmest FET precise pairing. The operational amplifier board is huge and the bottom area is similar to that of dual operational amplifier. 5、EXCELLENT SOUND: Sound operational amplifier has no relatively low open loop gain, so there is no need for deep negative feedback like operational amplifier, and the sound comes out more natural and delicate, can give you the most comfortable feeling. Item Type: Operational Amplifier Product Material: Copper Model: HDAM9988SQ Features: 1. Pure for Marantz HDAM discrete modules, super sound. 2. Used for audiophile grade sound amplifiers, preamps, CDs, amps, sound amplifiers, DAC output buffers, low pass filters, buffers. As well as precise instruments, fast data acquisition, DAC output amplification, photoelectric, ultrasonic, sonar, high impedance sensor amplifiers, high performance sound circuits, active filters, etc. 3. Pins familiar with OPA2604AP NE5532 MUSES02 OPA2604 LME49720HA LME49720HA OPA2107AP AD827SQ 883B etc. 1 x Module