Description
An audiophile-grade, high-power, dual-channel pure power amplifier board, available in two distinct versions to suit your sonic preference: one featuring classic Toshiba A1943/C5200 transistors, and another with modern ON Semiconductor 0302/0281 transistors. This finished, assembled board is ready for immediate use once connected to a suitable power transformer and audio source, making it the perfect core for a high-fidelity home audio system.
PRODUCT INFORMATION
Product Name: HiFi High-Power Amplifier Board
Amplifier Type: Class AB
Output Power: 150W (Max)
Channels: 2 (Dual Channel / Stereo)
Gain: 33x
Supported Impedance: 4-8 Ohms
Dimensions (L x W x H): 165.5mm x 143mm x 65mm (including standoffs)
Net Weight: 0.75kg
Required Power Supply (Not Included):
Main Amp: Dual AC 20V to 33V (e.g., 30V-0-30V transformer)
Protection Circuit: Separate Single AC 10V to 12V winding
Brief Introduction & Component Highlights
This amplifier is built with high-quality, audiophile-grade materials to ensure a pure and powerful sound. Key components include a Songle relay for speaker protection, two 10000uF/63V large-capacity filter capacitors for excellent dynamic response, high-precision metal film resistors, and various audiophile-grade transistors (A970/C2240, 669/649) in the signal path to create a warm and detailed sound signature.
Version 1: ON Semiconductor (0302/0281)
Sound Signature: A clear, detailed, and transcendent sound. The midrange is full and rich, while the bass offers excellent impact, extension, and control, perfect for dynamic music.
Version 2: Toshiba (A1943/C5200)
Sound Signature: The classic "golden combination" for amplifiers. Delivers a well-layered and detailed treble, a lush, natural, and warm midrange with strong emotional appeal, and a powerful, majestic bass foundation. The overall sound has a "tube-like" charm favored by many audiophiles.
Package Includes
1 x Assembled High-Power Amplifier Board
Important Notes
This product does not include any accessories such as transformers or cables.
Experience Required: If you have limited experience, please seek assistance. Wiring mistakes can cause irreversible damage.
Heatsink: This is a high-power board. The power transistors are attached to the heatsinks, which are essential for operation. Ensure good ventilation.
