SKU: 51940653313
analog flanger pedal

analog flanger pedal BSRI Geometry Stacks

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Description

analog flanger pedal BSRI Geometry StacksGeometry Stacks Analog Flanger I read a lot of hard sci fi when I was a kid. I didnt really know what the characters were talking about all the time but I knew it was all math and physics and science and stuff and that was all really cool. Ive gone back and re read a lot of that stuff as a Grown Up and in the intervening years Ive learned enough about Things and read enough Wikipedia articles about niche scientific theory to have a bit more of an idea

Geometry Stacks | Analog Flanger

I read a lot of hard sci-fi when I was a kid. I didn’t really know what the characters were talking about all the time but I knew it was all math and physics and science and stuff and that was all really cool. I’ve gone back and re-read a lot of that stuff as a Grown Up™ and in the intervening years I’ve learned enough about Things™ and read enough Wikipedia articles about niche scientific theory to have a bit more of an idea of what is going on. It turns out designing pedals using obsolete technology charts a similar course. I had a lot of false starts as designing a flanger because there are some tricky problems to solve if you want the real short delay times and a wide sweep and all the wonderful little flanger tricks that make the effect exciting. I learned a little bit of new info with each passing attempt and got some helpful advice from Pedal Friends™ that all culminated in the device in front of you today. Geometry Stacks opens up many little modulation universes that can be delicate and subtle or mechanical and extreme. It allows you to extend spacetime on the fly and then return to a familiar space at the click of a switch. Explore and you will be rewarded. Mind the Enhance control though. It gets loud at extremes.

Level - Sets the volume of the modulated signal mixed into the output

Polarity (toggle) - Sets the polarity of the modulated signal at the mix stage. Down is in phase with the dry signal for classic flanging sounds. Up is out of phase with the dry signal, which is a unique hollow or tubular sounding effect

Velocity - Sets the frequency of the modulation from very slow to very fast.

Width - Sets the range the modulation sweeps from narrow to wide. At maximum, the modulation sweeps the full range of the delay control and the delay control will not have any effect.

Voice - Active shelving treble boost/cut

Enhance - Sets the amount of signal returned to the start of the BBD for regeneration. This control can cause self-oscillation at maximum so be careful!

Delay - Sets the amount of delay the modulation works around. If the Width control is at minimum, this control allows for manual sweep of the flanger effect.

Activate - True bypass soft-click foot switch to turn the effect on and off

Extend - Cascades an additional bucket brigade device into the modulation path for more dramatic flanging effects.

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SKU: 51940653313

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Amazon customer
Alexandria, US
★★★★★ 5
Great quality and Easy to install
Size: 18-22 Accord
As someone with zero experience changing air filters, I was honestly surprised at how easy this was. The fit was perfect for my 2010 Honda Accord Sport, and both the cabin and engine air filters installed with no issues at all. It even came with clear, easy-to-follow instructions that made the whole process stress-free. Saved myself money from going to the dealership, and my car is running great. Definitely recommend for beginners wanting to do a simple DIY maintenance job.
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Reviewed in the United States on May 25, 2026
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Rob Rosensteel
Boise, US
★★★★★ 5
Great Product Great Price
Size: 16-21 Civic, 17-22 CR-V
product was a good priced. Fit as it should. will buy again when needed.
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Reviewed in the United States on May 28, 2026
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Evelyn Davis
Grantham, US
★★★★★ 5
Air filters are great
Size: 10-24 4RUNNER, 10-23 GX460
I received when promised and it fit my automobile correctly, I get good gas mileage already so we will see if the gas mileage comes up. The quality was great always looking for high quality when changing the air filters and this item met that standard. Go ahead and buy it will meet you demands.
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Reviewed in the United States on May 24, 2026
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Kristina
Natrona Heights, US
★★★★★ 4
Great value
Size: 18-26 Expedition, 15-26 F-150, 18-26 Navigator
The engine air filter fit perfect. The cabin air filter was a bit of a challenge fitting. seemed to be a bit larger but it went in and got the cap back on the box. For the price you cant beat it. Would buy again!
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Reviewed in the United States on May 15, 2026
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Storyteller
Omaha, US
★★★★★ 5
Great Filter Set for Allergy‑Sensitive Families and MPG‑Minded Drivers
Size: 21-25 TLX, 18-25 Odyssey
I bought this set because I prefer handling routine maintenance myself, especially cabin and engine air filters, rather than paying dealership prices for simple jobs. The package included one cabin air filter and one engine air filter, plus a full backup set for the next service interval. Both filters installed easily and fit the 2018 Honda Odyssey exactly as expected. No trimming, no forcing, and no alignment issues. The cabin filter seated cleanly in the glove‑box housing, and the engine filter dropped into the airbox without any airflow restriction or sealing gaps. This setup is ideal for Odyssey owners who want to maintain optimal cabin air quality—especially helpful for families with allergies—and for drivers looking to keep engine airflow unrestricted for the best possible MPG and throttle response. It may not be necessary for anyone who relies exclusively on dealership service or doesn’t perform their own maintenance. Overall, this is a straightforward, high‑value filter set that installs cleanly and supports both air quality and engine efficiency for DIY‑minded Odyssey owners.
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Reviewed in the United States on May 26, 2026

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