6J5 Vacuum Tube Preamplifier with BT 4.2 and NE5532 Op Amp, Treble Bass Volume Tone Adjustment Controls, 1.6mm Double Sided PCB, Gold Plated Interface for Home Audio Theater (Black)

This amplifier adopts 6J5 electronic tube and fine-quality NE5532, and BT4.2 version do not support APTX function. The main filter capacitor adopts 470UF/25V, and the coupling capacitor adopts 1UF capacitor. The PCB adopts 1.6mm thickness double-sided sheet, 2.0ounce copper thickness, and the whole process of tin-spraying ensures the fine passing performance of the current.Features:Using 6J5 electronic tube and fine-quality NE5532, and BT4.2 version do not support APTX function.The main filter capacitor adopts 470UF/25V, and the coupling capacitor adopts 1UF capacitor.The resistor uses a high precise chip resistor, and first-class printed circuit board quality.The printed circuit board adopts 1.6mm thickness double-sided sheet, 2.0ounce copper thickness, and the whole process of tin-spraying ensures the fine passing performance of the current.The layout of board is reasonable, beautiful, and with small current noise.The input and output interface are made of gold-plated lotus pedestal, which is long lasting and beautiful.Three knobs design improves everything detail, transparency, immediacy, richness, you can get both powerful or sweet sound easily.Specifications:Name: PreampMaterial: printed circuit boardColor: black, silver (optional)Power supplys: DC12VItem size: 137 * 104 * 41mm / 5.39 * 4.09 * 1.61inPackage size: 250 * 200 * 70mm / 9.84 * 7.87 * 2.76inPackage weight: 500g / 1.10lbPacking List:1 * PreampPackage List：1 * Preamp

• Vacuum Tube and Op Amp Integration: This preamplifier utilizes 6J5 electronic tubes and NE5532 integrated circuits to process audio signals, featuring BT 4.2 connectivity for wireless input without APTX support.
• Circuit Board Construction: The unit is built on a 1.6mm thickness double sided printed circuit board featuring 2.0 ounce copper thickness and a tin spraying process to maintain current performance.
• Precision Electronic Components: The internal circuitry includes high precise chip resistors, a 470UF 25V main filter capacitor, and 1UF coupling capacitors to ensure stable electrical operation.
• Gold Plated Interface: Both input and output connections utilize gold plated lotus pedestal interfaces designed for long term durability and signal transmission in home theater environments.
• Tone and Volume Adjustment: A three knob interface allows for manual adjustment of treble, bass, and volume levels, supported by an internal layout designed to minimize current noise.