Sell AIYIMA A3001 Subwoofer TPA3255D2 Amplifier Hi-Fi Mono Power Amplifier Class D Amplifier with Full Frequency and Subbass DC 24V-35V Subamplifier best price

Product description: Product parameters: Maximum output power: 300W*1 4Ω load Power amplifier chip: TPA3255D2 Tone chip: NE5532 DC chip: 2596 Full frequency frequency response: 20Hz-20kHz (±3dB) Speaker matching impedance: 4-8Ω Distortion: 0.03% when outputting 1W Working voltage: DC24-35V Signal to noise ratio: ≥106dB Input sensitivity: 0.775V Dimensions (L*W*H): 120*117.5*36MM (without protruding knob section) Bass cutoff frequency adjustment range: 40-300Hz Bass attenuation slope: -12dB Slope Panel description: 1.Power switch 2. Power indicator 3. Full/bass operation mode switch. 4. Bass up frequency adjustment knob (knob is only available in bass mode) 5. Volume knob (clockwise volume increases, counterclockwise volume decreases) 6. Audio input interface (such as CD, DAC decoder, mobile phone, TV, etc., red to the right channel input, white to the left channel input) 7. Low-pass output (connected to the active subwoofer, synchronized output with the amplifier) 8. Speaker interface (red to positive, black to negative) 9. Power interface (DC power supply must not exceed 35V) Operation Steps: 1. Make sure the VOL knob is at its minimum. 2. Connect the speaker according to the back panel interface indication, pay attention to distinguish between positive and negative. 3. Connect the audio source you want to use. 4. Connect the power supply. 5. Select the desired working mode 6. Press the power button. 7. Turn the knob clockwise to select the desired volume level. 8. In the SUB mode, the bass cutoff frequency can be changed by adjusting the SUB FREQ knob. Note: PBTL/SUB Switch: When ''PBTL/SUB'' is switched to ''SUB'', SPK OUT connects to the passive subwoofer. When ''PBTL/SUB'' is switched to ''PBTL'', SPK OUT connects to the full range speaker. The SUBOUT is connected to active subwoofer. At 35V 8A, speakers 2-3Ω 280W / 4Ω 180W / 8Ω 120W At 32V 5A, speakers 2-3Ω 170W / 4Ω 120W / 8Ω 80W If the power of the speaker is too low, the power amplifier chip will be powered off for protection. Note: 1. Do not open the case privately. Improper handling may result in electric shock. 2. Please use the switching power supply of the regular manufacturer, otherwise the risk of damage to the machine will be damaged. 3. Do not place the machine in a high temperature and high humidity environment. Package included: 1Pcs Amplifier  (Without power supply)