What upgrades are there in AD-1PA+ compared to AD-1PA?

The AD-1PA+ is a Hi-Fi stereo amplifier featuring Class A/AB operation, a high-power transformer, high-performance transistors, and robust capacitors. It is designed by Tonewinner, a Chinese high-end audio manufacturer with over 30 years of professional experience.

As an upgraded version of the AD-1PA, the AD-1PA+ delivers more stable performance, higher power output, and better meets the demands of discerning listeners.

Six key upgrades

1. Power upgrade

Power from 300W increased to 330W(8Ω)

2. Circuit upgrade

Higher conversion efficiency, purer sound quality output

3. Power system upgrade

Intelligent dynamic power management which further improves efficiency and reduces consumption

4. Temperature control system

Intelligent dynamic temperature control which increases power but reduces overall machine heat

5. Energy saving

Standby power as low as 0.5W, CCC/ CE/FCC certified.

6. International design

Wide voltage supply, user manual in Chinese and English languages.

The main features of HI-END Class A Amplifier AD-1PA+:

• Class A Circuit   
• 1200W toroidal transformer  
• 180,000µF capacitors  
• 16pairs high power transistors
• Auto switch ClassA/ClassAB
• Intelligent power management
• Full Balance trasmission
• Bi-wiring of A/B
• Independent chassis cabinets
• Power 330W*2