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KNACRO Low Pass Subwoofer Low Pass Circuit Review

2

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🍿 Home Theater, 🎵 Home Audio

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Description of KNACRO Low Pass Subwoofer Low Pass Circuit

High quality electrolytic capacitors 2 2200uf / 25V rectifier to do, low-pass filtering to enlarge dual op amp NE5532. Welded 8P op amp IC Block, easy to replace the op amp to enhance playability, CBB capacitance capacitors are original, high-quality sealed potentiometers potentiometer. There are LED lights, real-time monitoring the power supply situation. Input voltage: positive and negative dual power input AC 12v to 15v can be. It can be a single / dual channel input and mono output. PCB ultra hardness FR-4 fiberglass board, size: 78x42mm, thickness: 1.6mm. Frequency adjustment range 22Hz-210Hz, this frequency range is no human voice, so-called low-pass only the low-frequency output, to be added after stage amplifier power amplifier board can be used. The intensity of low-frequency performance and power amplifier board with speaker matching, please choose a different amplifier board and subwoofer (passive subwoofer) according to different occasions.

Reviews

Global ratings 2
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  • 4
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Type of review

Revainrating 5 out of 5

Powerful Bass Boost Amplifier Adds Punch to Your Sound System

Based on my experience, this high-quality low pass circuit produces an incredible bass-boost that`s perfect for any home theater or audio setup. The compact size makes installation a breeze and it uses the latest electronics to ensure effective performance every time. The only downside IS that it's a bit pricey, but considering the difference it makes, it's definitely worth the investment..

Pros
  • Efficiently filters out high frequency signals to allow for clearer and more powerful bass output.
Cons
  • Limited in its use as it can only be applied to subwoofers and not full-range speakers.

Revainrating 5 out of 5

Precision Crossover _ CORRECTED Information

Power consumption is listed as 12 volts; 12VAC will NOT work properly. This board requires a 24V center-tapped transformer (12V - GND - 12V). With a 12V transformer, the L7812CV and L7912CV voltage regulator chips used on the PCB cannot work!Description CORRECTED by seller; Excellent work!

Pros
  • Receiver and Amplifier
Cons
  • Some Difficulties