H30LB15

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H 30 LB 15 H 30 LB 15
High efficiency 30 cm wide range unit, paper cone, basket and ring = bronze without lead SN12, pole pieces made of very mild steel < 0.20 % carbon in a pot shape with central ALNICO 3SC magnet : all fields is in the gap and magnetically proof ( TV… )
Each driver part is controlled and measured all along the manufacturing process . Each driver is put under a very serious pre-running and then measured in order to match pairs with max tolerance delta as 0,2gr. on mobile equipment mass, 0.1 Ohms on d.c. resistance, 2Hz on resonance frequency, is numbered and life guaranty ( first owner ) .

 

CHARACTERISTICS
Ø voice coil = 35 mm
h = 8 mm 2 layers cu
M = 9,7 gr
dB = 97
G = 1,4T alnico Alcomax 3SC
Admissible power = 50 W
fs = 36 Hz
re = 13,8 Ohm
Qes = 0,62
Qms = 6,60
Qts = 0,59
Vas = 224 litre
Z = 16 Ohm
Zmin = 14,9 Ohm
Zmax = 125 Ohm
D = 234 mm
Ms = 23,2 gr
Le = 1,2 mH


Recommanded speaker : BAFFLE PLAN
you will find details into montage page.
Hole diametre = 270
7 screws ø 5 at 54,3 ° on r = 144
Net weight = 8,9 kg
Packed weight = 13,1 kg

These characteristics have an indicative value and are only the result we have in our deaf anechoic chamber from measuring equipment actually in our possession. It always must be kept in mind that the main ones, as the natural, equilibrium, musicality, cannot be described above but are only partly derived from them.