Hifi Tube Preamplifier DIY Kit Base on M7 (No Tube) + Power Supply Kit

The product is a DIY kit designed for enthusiasts who enjoy soldering their own components. We offer an assembled board with the ASIN# B078JLBH1N, featuring dual independent designs for physical left and right channels with 100% separation and independent grounding. The preamp board operates with a voltage of +DC280V (above 10ma) for 2 groups and +DC12.6V (above 0.8A). The power supply board accepts input voltages of 0-AC220V for 2 inputs (200V-240V are acceptable) and 0-AC12V for 1 input (12-15V are okay). The preamp PCB has a size of 154771.6mm while the PSU PCB measures 130701.6mm.

The kit uses Taiwan metal film resistors with 1% accuracy, MKP coupling capacitors, and ceramic tube sockets. It is compatible with 3 pieces of 12AX7 tubes or similar types (such as 12AXX series). If you wish to use tubes with a filament voltage of 6.3V, like 6N11/6N2, you can adjust the power supply board to lower the voltage to 6.3V and accept input low AC voltages of 6V-9V. The package includes 1 DIY KIT PRT-07A Hifi Tube preamplifier (tubes not included) and a power supply kit based on the M7Preamp board.

In conclusion, this DIY kit offers a customizable and high-quality solution for building your own tube preamplifier with advanced features and versatile tube compatibility. It is ideal for audiophiles and hobbyists looking to enhance their audio experience through DIY projects.

product information: