Introduction Thank you for purchasing the Fosi Audio BT30D PRO HiFi Bluetooth 5.0 Power Amplifier. The Fosi Audio BT30D PRO is a high-performance HiFi Bluetooth 5.0 power amplifier equipped with SUB volume/frequency control and bass/treble adjustment features. It supports both Bluetooth and RCA inputs, making it compatible with most passive speakers as well as passive/active subwoofers.
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Introduction Input Mode Indicator Power Switch Subwoofer Frequency Control Subwoofer Volume Control Bass Control Treble Control Volume Control RCA Input Passive Speakers Binding Posts Pre-Out Passive Subwoofer Binding Posts Power In Bluetooth Antenna Interface Bluetooth Antenna...
Specifications Channel Amplifier Chip Texas Instrumets TPA3255*2 Input Bluetooth, RCA Passive Speakers / Output Subwoofer, Pre-Out ≥108dB ≤ 0.04% Terminating lmpedance 2-8Ω MAX Power Output 165W x2+350W(@4Ω) Frequency Range 20Hz-20kHz(±1dB) Input Sensitivity 700mV Bluetooth ≤15m Transmission Distance DC 12-36V Power Input Range...
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2. Use RCA cables to connect the audio source to this device (if using Bluetooth input, please refer to step 4); 3. Power up the BT30D PRO and set the volume to the lowest level to avoid damaging your hearing or audio equipment;...
1. Experiencing noise during music playback? A. Bluetooth Input Mode: Weak or unstable Bluetooth signals can cause this issue. Move your Bluetooth device closer to the BT30D PRO or try connecting with a different Bluetooth device. B. RCA Input Mode: Ensure that the cables are properly connected. If the issue persists, consider replacing the RCA cables.
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5. Is the sound suddenly cutting out? A. Try reducing the volume of the audio source. B. Test with a different audio source. C. Lower the gain of the bass and treble. D. Ensure that the positive and negative speaker outputs are not too close;...
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Warranty and Maintenanc Fosi Audio pledges to give a 24-month limited warranty and support from the date of purchase. If you encounter any problem when using our product, please contact our support team at support@fosiaudio.com. About Us Fosi Audio designs and builds innovative audio products with all your music in mind.
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常见问题 �.播放音乐时有噪音? A. 蓝牙输入模式: 蓝牙信号弱或不稳定会导致此问题, 请将蓝牙设备 靠近BT��D PRO或尝试使用其它蓝牙设备连接; B. RCA输入模式: 确保线材连接正确, 或更换RCA线; C. 尝试更换音箱线; D. 调低高音增益水平; E. 确保BT��D PRO远离其他电气设备。 �. 所有线材都连接好了, 但没有音频输出? A. 请检查放大器前面板上和电源上的的指示灯是否亮起; B. 检查音量旋钮是否处于最小状态; C. 确保输入模式正确; D. 检查音源是否暂停; E. 尝试更换音源, 线材和扬声器/低音炮; F. 重新启动 BT��D PRO和音频设备再次尝试。 �.我的蓝牙设备无法与 BT��D PRO 配对? A.
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�. 声音突然中断? A. 尝试降低音源的音量; B. 更换音频源进行测试; C. 降低高低音的增益; D. 确保扬声器输出的正负极不接触在一起, 一些较大的香蕉插头容 易接触而导致短路。 �. SUB FREQ 旋钮有什么作用? 它只能调节无源低音炮输出的频率 吗? SUB FREQ用于调节无源低音炮的输出频率, 调节范围为�-���Hz。...
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