API 312 microphone preamps, a matched pair with consecutive serial numbers. Ideal as a stereo matched pair, these are rare and in excellent condition. Product Description: API 312 microphone preamps. These are genuine products imported through a Japanese distributor. - Compact API sound. - Perfect for improving the quality of recordings and home recording. - Characterized by clear and powerful sound. - Equipped with genuine original API 2520 op-amps. Highly recommended for those seeking high-quality microphone preamps. Included: - Main units and all original boxes and documentation from new purchase. * Operation has been confirmed, but as these are used items, please refrain from purchasing if you are overly sensitive or seeking perfection, to avoid any issues. We kindly ask that you read the profile before considering a purchase to ensure a smooth transaction and avoid any misunderstandings.