2.1 3 channel 10 to 24 v single-supply mega bass level preamp Finished product low-pass filter plate (E1A4)

  2.1 3 channel 10 to 24 v single-supply mega bass level preamp Finished product low-pass filter plate (E1A4)    Product  Description  ATTENTION: this plate is heavy bass level before the board, directly answer the speaker doesn't make any noise, must be made active subwoofer level amplifier board after we receive your pure, pure level after the amplifier board power according to individual need to choose the degree of shock, pure stage amplifier, the greater the bass effect after the shock.So-called low-pass filter board is to filter out more than human soprano part, and keep low frequency part of amplification in order to improve the bass replay, play when not hear voices and high frequency of the instrument.Buyers, please be sure to know this knowledge, after buying in order to avoid the hand also don't know how to use.
Mostly on the market before the subwoofer level board are basically double power source, is not very convenient to use, the DIY fans after all single power supply is easy to find, on the premise of guarantee effect, we introduced a single power supply mega bass front plate, you can talk with level amplifier board after sharing a set of power supply, DIY is very convenient.   1, all components selected a new one, choose the original philips CBB capacitance of the frequency control, adjust potentiometer, select all from Taiwan seal type, input and output side choose pure copper terminals, wiring is very convenient.
2, choose Texas NE5532 op-amp, welding has IC may at any time change the op-amp, feeling the effects of different effluents bring improve playability.
3, the design has the LED light is real-time monitoring the power status.
4, this board PCB design is concise and beautiful, reasonable wiring, makes this plate has the extremely high signal-to-noise ratio, strong anti-interference ability.No signal input can hardly hear the noise near the horn. Any requirement ,contact me freely.   Product Show       Company Services "Customer is always god.Honest is our nature".Thought what the customer thought.Cooperate with customerssincerely.Oriented to the market.Set up a good platform on Sales and Services in order to serve our clients perfectly.   We used to adhere to the "quality first ,reasonable price,fast delivery and service-oriented" development philosophy and purpose! We have many different kinds of goods(as your request) And The most important, you will get the lowest price with high quality.   ---------------------------------------------------------   Shenzhen Wonderwing Electronics Ltd.   ADD: Room 2401-2404, REITH CENTER (Tower A, Century Holiday Plaza) No.9030 north of Shennan Rd. Nanshan, Shenzhen, China       Shipping Terms   1. We will arrange shipment within 2-3 working days once get your payment.   2. We usually ship via Global express company: UPS/DHL/EMS/FEDEX. if you have better express service company , Please tell us then. We'll choose your preferred ways.   3. We are not responsible for any accidents, delays or other issues that we couldn't control, But we will contact the shipping company which is our long term cooperation.   4. Any import duty or charges are for the buyer's responsibility.           ----------------------------------------------------------