Published builds
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In Progress Build guide 1 Speakers (Passive & Active)SonarStrike 3
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In Progress July 2026 Build guide Portable & Boombox SystemsOG Bassilisk Boombox
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Finished Build guide Speakers (Passive & Active)PC Speakers Speaciale
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In Progress 9 Car AudioMegane E-Tech SQ
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In Progress Build guide Measurement & CalibrationArticulated Measurement mic arm for UMIK-1
Articles
- How it works Audio fundamentals
Understanding Decibels: The Numbers Behind Loudness
Decibels appear everywhere in audio: speaker sensitivity, amplifier gain, frequency-response graphs, filters, noise measurements, and maximum output. The problem is that a decibel is not a fixed unit like a volt or a watt. It describes a…
eZstah - How to do it Audio fundamentals
How to Set Amplifier Gain Without Clipping
Amplifier gain is not a power control and it is not a sound-quality upgrade. Its purpose is to match the input sensitivity of the amplifier to the maximum clean output of the source or DSP.
eZstah - How it works Audio fundamentals
Sealed vs Ported Enclosures: Choosing the Right Box
A sealed enclosure traps air behind the cone. That air acts like an additional spring.
eZstah - How it works Audio fundamentals
Crossovers, Slopes, and Phase: A Practical Introduction
A crossover sends different frequency ranges to different drivers.
eZstah
Build updates
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YHoSonarStrike 3Photos Optional — up to 10 images of the work. PNG, JPG or WebP, 8 MB each. Drag photos to reorder. Add photos
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Still continuing with the sound deadeningMegane E-Tech SQ -
We've been trying to figure out what's going on for over a month now; the usual ways to trick the system aren't working.Megane E-Tech SQ -
Trying to connect stuff, the problem is - Car wont give any signal on stock subMegane E-Tech SQ -
Kinda insane extra work, but should be worth itMegane E-Tech SQ
Reviews
- The read Box Would build again: Yes · Aug 29, 2026
Forum threads
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Testinb the positive stone
eZstah Showcase - Hum when I touch the RCA — ground loop?
eZstah Question -
Preparing to build my first Bassilisk
eZstah Question - Me explaining why I need a fourth subwoofer
eZstah Off-topic