NEW Pre-AMP Single Low Power Pass Filter Bass Subwoofer Amplifier Board DC 9-32V
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Product Description:

Description:

Note:
  This board is a preamp board, it can't be directly connected to the speaker. It must be connected to the subsequent stage of an amplifier board for this pre-amp to work.
 
The so-called low-pass filter to filter out the human voice board is more than treble part, retain the low  frequency part is amplified to improve the bass reproduction efforts, people will not hear the sound of  musical instruments and high-frequency sound during playback. The buyer must understand knowledge of  this area.
 
Features:
 
Power supply voltage: DC 9V-32V single power supply
 
Dual channel input, subwoofer output, then the output amp|ifier,can not directly connected to the speaker
 
The multi-stage filter, better bass effect
 
The phase adjustable
 
Potentiometer from left to right: frequency adjustment, bass volume control
 
The cut-off frequency: 22HZ-240HZ
 
Potentiometer shaft center to center spacing: 3cm
 
PCB Size: 62 9* 26.5mm
 
Audio input: mono or two-channel
 
Audio output: Mono(connect with amplifier)
 
 
 
Package included:
1PC x Low Pass Filter Bass Subwoofer Pre-AMP Amplifier Board
1PC x Power cable
1PC x Audio Shieklded cable
 

We appreciate your feedback very much. As it will motivate us do better. If you have any questions with our goods or service, Please kindly contact us firstly before leaving negative feedback. Thank you in advance

 

1. All merchandise will be carefully test before shipping. We will try our best to avoid any quality problem.

2. We promise warranty for quality in one year and we will repair it free of charge. The returning shipping should be paid by customer.

3. If you are not satisfied with the product, Please contact us. We'll provide you a satisfying solution.

1.Normmly we will send the goods within 1-3 working days after your payment is verified .

2.Please check if the goods are in good condition and sign before the delivery man leaves.If you find the product is lost or damaged on the way. Please take photo and let the delivery men confirm it. Then we will help you let the shipping company compensate you.

On Aug-19-20 at 06:06:07 PDT, seller added the following information:

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