Serge Variable Resonance Filter (VCFQ)

Marsoni

M251S

$170.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Serge Variable Resonance Filter (VCFQ)The Serge Extended Variable Resonance filter (VCFQ) is probably the most famous filter of the Serge system and one of the essential Serge modules. It is an excellent, extremely versatile general purpose VCF that provides simultaneous low pass, high pass, band pass and notch (band reject) outputs combined with unique flexibility. Its trigger in, LOW mode and self oscillation allow a variety of uses from Oscillator to VC processing.

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Not sure why others are saying airflow is decreased or it doesn't fit if they apply it to the correct vehicle. I have a 2023 Grand Cherokee Lmited L and it took me all of 5 minutes to change out the filter and I have to say, this filter is much better quality than the Mopar filter that was in there. There's absolutely no decrease in air flow and it's like a custom fit in the space. The hardest part about the entire process was emptying out the darn glove box!

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Reviewed in the United States on May 22, 2025

Verified Purchase

Rob

Omaha, US

★★★★★ 5

Nice glasses

Light weight and comfortable

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Reviewed in the United States on August 11, 2025

Verified Purchase

Danielle Kunz

Charlottesville, US

★★★★★ 2

Weird smell and reduction in air flow

The filter has a strange smell to it which I am not sure if mentioned in the description. It also seemed to reduce air flow due to the addition of the carbon pellets. Had to run the fan on full to get same amount of air flow usually occurring on 3.

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Reviewed in the United States on December 14, 2025

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Speedracer Girl

Dallas, US

★★★★★ 5

Easily Replaceable Filter 2023 Jeep Laredo

Fits 2023 Jeep Grand Cherokee Laredo Altitude and took all of 10mins to replace by a girl.

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Reviewed in the United States on March 8, 2025