Sub250_vHE
Crédit photo: .Kartesian company
Sub250_vHE has been designed to reproduce powerful bass impact and every single detail in low frequency. It integrates several innovation to keep THD below 1% from 25Hz to 300Hz (free air, playing 90dB at 1m).
Suspension are fully balanced by reinforced NBR surround and dual dynamiK spiders, keeping unchanged resonance frequency value, whatever the cone excursion (+/-12mm).
The motor structure uses 2x NdFeB magnets, 2x Aluminum rings and advanced pole pieces design to get strong magnetic field and cool the voice coil. This one is built on Ø82mm glass fiber former, made of only 2 layers (1inner / 1outer) to minimize the inductance value and the related modulation.
T&S parameters
Fs : 26Hz
SPL : 88dB /2,8V /1m
Re : 4,2Ω
Qms : 6.4%
Qts : 0,312%
Bl : 14.9N/A
VAS : 57.3L
Mms : 106g
Sd : 338cm²
Frequency responses
On IEC baffle
Pink noise
Distance: 1m
Signal input: 2,83V
Smoothing: 1/12 octave
Curve below 75Hz is simulated:
60L vented enclosure
Tuning frequency: 25Hz
Impedance measured in free air
Mechanical drawing
Unit: mm]
Advanced design
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Treated 6 layers paper cone
Large reinforced NBR surround
Carbon fiber dust cap
Ø82mm Cu voice coil (2 layers)
Reinforced / Vented Glass fiber former
Optimized pole pieces
Inductance non-linearity device
Demodulated by 2 Al rings
Innovative twin .dynamiK spiders
Aluminum frame with vented spiders
Crédit photo: .Kartesian company
Advanced measurements
