500W High Power Mono Amplifier Board with Toshiba Transistor for HIFI Audio Rear Stage

Features:

• Minimal switch noise with minimal speaker impact
• Recommended to add speaker protection circuit
• Low bottom noise and zero float
• No debugging required after installation
• Output zero drift voltage typically ≤50mV
• High success rate for beginners

Technical Specifications:

• Circuit design: A970/C2240 high-voltage audio tube double differential circuit
• Voltage amplification: A1145/C2705
• Medium-power tube: A1837/C4793
• Output stage: A1943/C5200 high-power Toshiba tubes
• Power supply range: DC ±20V-90V
• Undistorted power: 200W
• High power: 300W
• Board size: 120×60×45mm
• Capable of driving 15-inch speakers effortlessly

Enhanced Features:

• Upgraded mono amplifier board with speaker protection
• Circuit design: A970/C2240 high-voltage audio double differential circuit
• Voltage amplification: A1145/C2705
• Medium-power triode: A1837/C4793
• Output stage: A1943/C5200 high-power Toshiba tubes
• Power supply range: DC ±20V-90V
• Undistorted power: 300W
• Peak power: 450W
• Board size: 150×75×55mm
• Excellent sound quality with strong driving force

Technical Details:

• Single channel rear amplifier board (requires 2 pieces for dual channels)
• Circuit design: A970/C2240 high voltage audio pair dual differential circuit
• Voltage amplification: A1145/C2705
• Medium power pair: A1837/C4793
• Output stage: A1943/C5200 high-power Toshiba pair
• Power supply: DC ±20V-90V
• Undistorted power: 300W
• Maximum power: 450W
• Board size: 145×60×45mm

Performance Specifications:

• Single channel rear amplifier board (requires 2 pieces for dual channels)
• Advanced circuit design with optimized components
• Power supply: DC ±20V-90V
• Undistorted power: 400W
• Maximum power: 600W
• Board size: 195×60×45mm
• Excellent driving capability for 15-inch speakers

Premium Specifications:

• Single channel rear amplifier board (requires 2 pieces for dual channels)
• Circuit design: A970/C2240 high voltage audio pair dual differential circuit
• Voltage amplification: A1145/C2705
• Medium power pair: A1837/C4793
• Output stage: A1943/C5200 high-power Toshiba pair
• Power supply: DC ±20V-90V
• Undistorted power: 500W
• Maximum power: 750W
• Board size: 245×60×45mm
• Includes speaker protection relay

Q: What is the minimum order quantity for your products?

A: Please contact us for small order quantities.

Q: How long is your delivery time?

A: Products shipped within 3 days after payment confirmation, delivery time 3-6 days.

Q: Do you test or inspect all items before delivery?

A: Yes, all items are tested and checked before shipment.

Q: What is your warranty?

A: 60 days after receiving goods. Products are 100% tested before shipping. Report defects within 3 days of delivery for replacement.

Q: How do I pay for the order?

A: We accept wire transfer, Western Union, PayPal, , escrow. Contact us for other payment methods.