ToneWinner AD-7300PA+ Power Amplifier Class AB 7 Channels 7x500W 4 Ohm

The AD-7300PA+ is a 7-channel Hi-Fi amplifier that is specially designed to match the AD-7300HD processor. It is a high-end and high-power amplifier with multi-protection, including overheat, overload, overcurrent, and overvoltage protection, so as to offer reliable performance for a home theatre system.

As a top 10 audio brand in China, Tonewinner has 30+ years of experience in designing and manufacturing acoustic products. 

Warranty:

1-year manufacturer's warranty

Features:

• 7 channels equal power output
• 7x 310W Power
• Hi-Fi Circuit Design
• High end gold plated RCA & XLR Connections
• Five protection design
• Big power tube parallel output, can supply 45A current output, big output power margin.

Video Review :

A complete protection system

Such a high power level implies the integration of a complete and efficient protection circuit. Therefore, the Tonewinner AD-7300PA+ is equipped with protections against short circuits, overloads, overheating, overvoltage and overcurrent.

A massive design

With its 25kg on the scale, the Tonewinner AD-7300PA+ is a massive amplifier, dressed in an aluminum chassis and two large side heatsinks. Its front panel features an impressive blue backlit vumeter with adjustable brightness.

Hi-Fi Circuit Design

It completely adopts the high-fidelity circuit structure of the independent 7-channel modular separation element power amplifier unit circuit board. The HI-FI circuit used in each channel and the process, layout, and materials used are almost the same, among which the front and left channels are exposed radiators, which are not only larger in size, but also have a larger current in the power amplifier stage due to the quiescent currents at all levels of the circuit. The technical basis of power output such as 7 channels.

High Power Transistor

3 pairs of famous ON Semiconductor NJW0302G/NJWO281G audio dedicated high-power transistors with a three-stage Darlington circuit form a push-pull output, providing a powerful power of 310W and 8 ohms per channel. The whole machine has a total of 7 channels, and 42 NJW0302G/NJW0281G high-power tubes are really powerful.

Technical Specification: