B
BlackMamba
Guest
Project by daro6000
Source here
Columns described are three-way floor-standing based on Beyma speakers. Case is MDF burred with elm burr.
Column height is 1.3 m; weight 50 kg, capacity 100 liters.
Parameters:
- range: 25-20000 Hz
- efficiency 94dB AT 1 W/m
- impedance 6 Ohm
Speakers have poured bins and very strong magnets.
Frequency separation is 6 dB/octave. Division points are 200 Hz and 6000 Hz.
Case is not closed type, there is bass-reflex applied with opening radiating towards the bottom at the front and rear over the stand.
Speakers type:
-low range - 12 BR 70
- mid-range - 6 Mi 90
- high-range - T 2030
Case capacity: 90 liter net for low-range.
Frequency separator was calculated by WinISD. I adopt empty spaces between speakers. Frequency bands overlap so characteristics is satisfactorily linear.Efficiency drop for the low-range speaker starts at 120 Hz