A1-468 960W+960W Hifi Power Amplifier Board Power Amp Board Finished of High Power for Audio

A1-468 960W+960W Hifi Power Amplifier Board Power Amp Board Finished of High Power for Audio

Features:
- High power, zero current sound, good sound quality, stable quality, and perfect protection.
- The midpoint voltage zero adjustment circuit is added, so that the midpoint voltage zero millivolt sound quality is significantly improved by one level.
- Perfect protection circuit: with delay, output short-circuit, over-temperature, DC and midpoint protection.
- Excellent sound quality. Treble: sweet, transparent, and pleasant to the ear; mid: warm, full, soft and layered; bass: surging, clean, and deep diving.
- Dual chip: The processing effect is significantly improved by 30%.
- Double relay: output high current and high power.
- Using imported chips, the speaker circuit is stable and reliable.
- 16 transistors made in USA: 8pcs WK5688 and 8pcs WY2963 for each channel, respectively. WK5688: NPN 240V 15A 180W. WY2963: PNP 240V 15A 180W.
- Superior performance, perfect protection, high-quality components, and outstanding sound effects.
- High-performance high-quality aluminum heat sink for high-power amplifier board.
- Dual differential circuit and imported chips make the sound clear, bright, sleek and warm. Full, low-frequency sound is layered.

Main Components:
- 16 American transistors: 8pcs WK5688 and 8pcs WY2963
- 4 original Japanese medium transistors
- 2 imported op amp chips
- Two imported relays for Omron
- Imported speaker protection chip UPC1237HA
- Non-inductive high-precision cement resistance
- High-precision resistors produced by Taiwan
- Imported audiophile audio capacitors
- Imported differential transistor
- Imported audiophile red square capacitor
- Double-sided high-quality circuit board
- Pure copper filter inductor
- High-power high-quality heat sink
- High quality cooling fan
- High-precision thermostat
- Imported bridge switch

Specifications:
- Model: A1-468
- Channel type: two-channel output/bridged mono
- Main supply voltage: DC ± 50-88V (suitable for 35V-62V transformers)
- Speaker protection power supply: AC 12-18V (independent winding)
- Output power: 480W+480W at 8Ω; 960W+960W at 4Ω
- Bridge mono power: 1800W at 8Ω
- Distortion: 0.01%
- Frequency response: 10HZ-180KHZ
- Speaker impedance: 4-8 ohms
- Power amplifier type: class A and B and class AB
- Size: 24.5 x 11.6 x 8.3cm/9.6 x 4.6 x 3.3" (LxWxH) (Including fan)

Package Included:
- 1 x Amplifier Board

Note:
- In order to continuously optimize and improve the product, the components used in the product may differ from the promotional image. Please refer to the actual product, the picture is only for a certain period of product photography for reference only. Thank you for your understanding!
- Other items pictured are not included, for demonstration purposes only.

Bridging Function:
Bridging is to push the amplification circuit of two channels to a group of speakers at the same time to improve the output voltage value of the audio without distortion of the power amplifier. Thus, it can improve the output power. Theoretically, when the current is sufficient to match the load, the bridging output power is 4 times the output power when it is not bridged.


How to use the bridging function?
Step 1: Press the bridge transfer switch (pictured)
Step 2: The audio input is connected to the right channel input and ground (R-IN/GND)
Step 3: The positive pole of the speaker is connected to the positive pole of the right channel output (R-OUT), and the negative pole of the speaker is connected to the positive pole of the left channel output (L-OUT).