Darkglass Electronics Harmonic Booster

Marsoni

M251S

$204.50

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

Darkglass Electronics Harmonic BoosterA precise and harmonically rich clean preamplifier. Features Bass, Treble, Mid gain with mid frequency shift, Character or blend control, and + 20dB boost. Made in Finland. Video: https: youtu. be gNdv LC5zBg Product Specs Item Number: 15329 Make: Darkglass Electronics Model: Harmonic Booster Condition: Brand New Finish: Black Categories: effects and pedals bass pedals pedal Function: Bass PreAmp Made In: Finland MPN: DG HBO EAN: 6430054580359 Modular

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 29, 2026

Verified Purchase

Nicholas K

Chelsea, US

★★★★★ 5

Great filter

Size: AF259

This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 19, 2026