Upgraded version of Op Amp Fully balanced, clean sound bottom, natural hearing resistance, high analytical power, high dynamics, deep dive in low frequency, full mid frequency, warm and mellow, sweet and moisturized voice, transparent in high frequency, delicate and supple.
1. There is no relatively low open-loop gain, so there is no need for deep negative feedback like an op amp, and the sound is more natural and delicate
2. The op amp power supply can be higher, operational, and dynamic can be greater at +-28V (+-9V also works well)
3. Larger output current, generally the output current of the op amp is about 40MA, the output current of this op amp is 100MA
Fully discrete dual op amp, based on Marantz circuit, the input uses warm sound field effect tube precision pairing. Because of the large number of components, it can only be used in the discrete front stage. The board is very large. Now it is often carefully designed. The area is similar to that of dual op amps, and the pins are familiar and fully compatible with OPA2604 OPA2132 NE5532 LME49722 OPA2107 AD828 AD823 and other op amps