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LNGR SPKRHIFI. TWO WAYS. HANDCRAFTED.
BIOFILTER 130BUILD · V1

DIY aquarium biofilter

130 × 130 × 490 mm, combined surface and low-level intake and a deliberately simple, serviceable filter path.

IDEA
SIMULATION
BUILD
MEASUREMENT
FINAL
Technical placeholder graphic for BIOFILTER 130
Technical project graphic; real build photos will be added to the build log.
StatusBUILD / V1
Outer size130 × 130 × 490 mm
MaterialPVC-U / cladding
Intakesurface + low level
Filtrationfoam + filter floss
DocumentsDXF + PDF

DIY remains DIY outside HiFi

BIOFILTER 130 follows the same documentation structure as the loudspeaker projects. The 130 × 130 × 490 mm service shaft combines surface and low-level intake, mechanical filtration and a serviceable pump chamber.

Understand the decisions behind the project

These learning pages explain the principles behind the documented planning. The recorded project status remains the reference for what has actually been built and measured.

Power supply →Measurement & control →