This document describes the AIYIMA A08 Bluetooth 5.0 2.0 Channel Power Amplifier, a high-power digital amplifier designed for audio enthusiasts.
Function Description
The AIYIMA A08 is a 2.0 channel power amplifier that supports both wired and wireless audio input. It can be connected to various audio sources such as computers, mobile phones, MP3 players, CD players, and other devices with analog signal output. The amplifier features a Bluetooth 5.0 module for wireless connectivity, allowing users to stream audio from their mobile devices. It also includes PC-USB and RCA inputs for wired connections. The amplifier is designed to drive passive speakers, providing a robust and high-fidelity audio experience.
Important Technical Specifications
Power Amplifier Model: TPA3255 A08
Effective Power: 300W (MAX) X2
Output Power:
- 315W/4Ω, Distortion 10%
- 185W/8Ω, Distortion 10%
- 260W/4Ω, Distortion 1%
- 150W/8Ω, Distortion 1%
Bluetooth Version: 5.0
Bluetooth Chip: Qualcomm QCC3034
Bluetooth Support Formats: SBC, AAC, Aptx, Aptx-HD
Bluetooth Decoding: Independent PCM5102
PC-USB Decoding: 16Bit 48Khz
Signal To Noise Ratio: > 111dB
Input Sensitivity: 0.775V
Work Efficiency: >90%
Frequency Response: 20-20Khz (±1dB)
Dynamic Range: > 100 dB
Quiescent Current: 60mA
Input Mode: RCA/Bluetooth/PC-USB
Output Mode: Passive Speaker
Supported Devices: Mobile Phones, Tablets, Computers, MP3, TV, etc.
Power Supply: AC100-240V
Dimensions: 10193184mm
Product Net Weight: 860g
Body Material: Aluminum Alloy Metal Shell with anodized frosting process.
Usage Features
Front Panel Controls:
- Volume Control: A large rotary knob for adjusting the total volume.
- Power Switch: A push-button switch to turn the amplifier on/off.
- Input Selector: A switch to select between PC-USB, RCA, and Bluetooth inputs.
Back Panel Connections:
- Bluetooth Antenna: For wireless Bluetooth reception.
- RCA Signal Input: For connecting devices via RCA cables.
- PC-USB Signal Input: For connecting to a computer via USB.
- PC-USB/RCA Input Switch: A switch to toggle between PC-USB and RCA inputs.
- Speaker Outputs: Terminals for connecting left and right passive speakers.
- AC Power Input: For connecting the power cord.
Initial Use Process (Examples):
1. Wired Connection to Play Computer Audio:
- Turn the volume control fully counterclockwise.
- Connect the amplifier's output port to the speaker terminals.
- Plug the power cord into the AC input and then into an AC 110V-220V outlet.
- Press the power switch; the indicator light will illuminate, and the amplifier will turn on.
- Turn the signal switch to "RCA" to play computer music (Note: The manual states "RCA" for computer music, but the input selector on the front panel also shows "PC-USB". It's likely the "PC-USB" input is for computer audio, and the "RCA" input is for other analog sources. The instruction might be simplified or refer to a general analog input for computer sound if the computer has an analog output).
2. Wireless Bluetooth Connection to Play Mobile Phone Audio:
- Follow steps 1-3 from the wired connection process.
- Unlock your cellphone, go to Bluetooth settings, search for "Hifi," and connect/pair.
- Turn the signal switch to the "Bluetooth" block to play mobile phone music.
Shutdown:
- Turn the main volume knob counterclockwise to turn off the power switch.
Input Priority:
- When both Bluetooth and PC-USB are connected, Bluetooth has priority. If Bluetooth is connected, the PC-USB signal will be interrupted. To use PC-USB, disconnect the Bluetooth connection first.
Sound Quality:
- The amplifier is designed for Hifi-level high fidelity sound effects, delivering surging power and a rich audio experience.
- The internal structure is complex, with vital parts matched for optimal performance. A "running-in" period is recommended for the equipment to reach its ideal state, improving sound delicacy, mellowness, smoothness, elasticity, and dynamics.
Maintenance Features
Troubleshooting and Handling:
- Can't Turn On:
- Ensure the power supply or AC input port is fully and tightly plugged in.
- Check or select other power sockets or power strips.
- No Sound from RCA:
- Verify the machine signal selector is correctly set to the RCA input.
- Only One Channel Has Sound:
- Check if the problem persists when switching between input methods.
- If so, use one speaker to test the left and right channels in turn.
- Otherwise, check the input signal and signal line.
- Bluetooth Cannot Be Searched:
- Turn off the power amplifier for about one minute, then turn it on again to reconnect.
- If Bluetooth is already paired with another mobile phone (e.g., Mobile Phone A), Mobile Phone B might not find the amplifier. In this situation, turn off Bluetooth on Mobile Phone A, and then Mobile Phone B should be able to search and connect.
- Abnormal Noise Inside the Power Amplifier:
- The amplifier uses a relay to switch between wired and wireless signals. When the Bluetooth connection is paused, the relay may click. This is a normal phenomenon.
Construction:
- The body is made of an aluminum alloy metal shell, which offers good thermal conductivity and durability.
- The surface is treated with an anodized frosting process, providing a delicate and round texture.
- High-density integrated PCB circuit design (100% circuit detection without breakpoints) ensures reliability.
- Uses high-conductivity copper paving materials (2 times better than industry standard) to minimize external interference with a short and efficient wiring method, reasonable design layout, and high fidelity.
Warranty:
- The product includes a warranty card and a certificate of conformity.
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