DROK® 5W Low Profile Amplified Subs Woofer Low-Pass Filter Subwoofer Frequency Circuit Board NE5532 Op-amp Chip


Feature:
Potentiometer from left to right are: frequency adjustment, volume control
Supply voltage: AC dual 15V (5W) ,  about the transformer, please check the item ASIN: B00C4A9K8C. but please note that it is a  220 VAC version
Frequency range: about 22Hz-210Hz
Dimensions: 80 x 40 x 30mm (without potentiometer handle protruding parts)
The spacing between the potentiometer: 41.5mm
Use Two NE5532 Op-amp to do the signal processing

Package Include:
1x Subwoofer low-pass circuit