Planning
The fixed front order is DMA105-PR – Dayton TCP115-4 – TEXTUS – Dayton TCP115-4 – DMA105-PR. CNC v1.2 sets a 120 mm TCP115-to-TEXTUS centre spacing while the passive radiators sit further outward. The target envelope is about 130 × 650 × 200 mm.
Simulation
The current 46–47 Hz passive-radiator tuning and 9.5–10 L net volume are planning values. Final PR mass, active crossover, level matching, EQ and protection are deferred until real parts and measurements are available.
Build
Before fabrication, confirm cut-outs, rear layout and electronics bay, then test-fit a front panel. The passive-radiator mass will be set after impedance measurement.
Measurements
Separate TCP115/TEXTUS measurements, crossover phase/delay and passive-radiator response will define the active filter set.
Changes
The passive radiators moved further outward and the TCP115 drivers moved closer to the TEXTUS unit. The confirmed project code is LNGR 2-PR-THT-PR. CNC v1.2 supersedes the earlier CAD v0.2 geometry.
Result
The current result is documented CNC geometry v1.2, not a finished active loudspeaker. The older CAD v0.2 files are retained only as an archive. The CAD image describes geometry; the AI concept only describes intended form language.
