TL072 Active subwoofer filter 80 Hz-250 Hz
Active subwoofer filter circuit based on TL072 Opamp is designed for use with Power amplifier with good parameters (narrow frequency response). The transition band of the filter is between about 10Hz (bottom) and 80Hz. + -12v symmetrical Zenerli regulated... Electronics Projects, TL072 Active subwoofer filter 80 Hz-250 Hz "audio control circuits, " Date 2020/04/02
Active subwoofer filter circuit based on TL072 Opamp is designed for use with Power amplifier with good parameters (narrow frequency response). The transition band of the filter is between about 10Hz (bottom) and 80Hz. + -12v symmetrical Zenerli regulated circuit Max. input voltage + – 38VDC
There are PCB and diagram drawings, material list prepared with eagle cad of active bass filter circuit. In addition, there is SMD version of PCB drawing.
If you get the input audio signal from the Direct amp output, you need to change the R1 resistance according to the chart in the diagram.
Active subwoofer filter circuit diagram
Source: pokec.azet.sk
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-26624a.zip
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12V AC – 24V DC voltage doubler
12 Volt AC voltage capacitors and 24V DC voltage doubling can be obtained. This dc voltage current, capacitors and transformers of capacity depends on the strength of the bridge diode. How much is all this constant 24v outlet in if you kullanamass efficiently. When the current is not continuous in snatches spend more time charging the capacitor will collect will increase efficiency.
Note: This is the effective value of 24v. capacitors max. peak value of about 33v outlet stores and therefore you can read the value. This tolerance may differ in voltage transformer transformer from.