19+ Ne5532 Preamplifier Circuit Diagram Pictures. It's a dual mic preamp based on the ne5532 op amp. The vr1 and vr2 perform fine decorate the sound.

Single Supply Differential Balanced Preamp Electrical Engineering Stack Exchange
Single Supply Differential Balanced Preamp Electrical Engineering Stack Exchange from i.stack.imgur.com
Joint product & provided by banggood and newchic. We also can use it in small power amplifier such as headphone amplifier. If the ebay descriptions are to be believed the ne5532 board requires a dual power supply and the tda board requires a single supply.

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Joint product & provided by banggood and newchic. We also can use it in small power amplifier such as headphone amplifier. The vr1 and vr2 perform fine decorate the sound. This riaa pre amp circuit is suitable for mm cells (moving magnet), and is not suitable for cell mc (moving coil).