Cirmech 2.1 Channel Subwoofer Preamp Board Low Pass Filter Pre-Amp Amplifier Board Ne5532 Low Pass Filter Bass Preampli
Product Name: 2.0+0.1 low pass filter preamp
Chip type: NE5532 78M12
Input voltage: DC 12-30V AC 9-20V
Architecture: Dual 5532 2.0 Full Tone + 0.1 Bass
Frequency range: 2.0+0.1 volume controllable, bass frequency phase adjustable
Note: This product can't directly link the speaker, you need to match the amplifier to drive the subwoofer.
The performance of the bass has a lot to do with the frequency response of the amplifier and the speaker and the cabinet. Please treat it rationally.
1 * 2.1 channel preamp board