Neodymium series 12N820 SPECIFICATIONS

Neodymium series 12N820 SPECIFICATIONS
12N820
Neodymium series
Neodymium Ultra Low Distortion Low Midrange Driver
Features:
98dB sensitivity 1W/1m
800W Power handling
Extremely light weight of 5.5 kg
4” copper sandwich voice coil for low power compression
Double treated cone for water protection
Neodymium magnet system
Triple aluminium demodulating rings for ultra low distortion
Optimal for compact 2- or 3-way systems
SPECIFICATIONS
APPLICATION
Low-Middle
Nominal impedance
Ohm
8
Power handling AES noise
W
800
Sensitivity ( 1W/1m )
dB
98
Frequency response
Hz
45 - 1700
Voive coil diameter
mm
101.6 (4”)
Voice coil winding depth
mm
19
Magnet gap depth
mm
10
mm
260
Cu
Voice coil material
Cast Aluminium
Basket
Effect. diaphragm diameter D
Frequency response measured 100W (28.3V) at 1m in a closed
THIELE – SMALL PARAMETERS
Resonance frequency
Fs
Hz
37.5
DC resistance
Re
Ohm
5.70
Mechanical Q factor
Qms
Electrical Q factor
Qes
0.19
Total Quality factor
Qts
0.18
Equivalent volume
Vas
L
80.90
Moving mass
Mms
kg
0.088
Mechanical compl.
Cms
mm/N
0.205
BL factor
BL
Tesla m
25
Effective piston area
Sd
m2
0.0531
Max. linear excursion
Xmax
mm
4.5
Voice coil inductance
Le1k
mH
1.67
Le10k
mH
0.61
Overall diameter
mm
318
Mounting holes diameter
mm
8 x (7 x 8)
Bolt circle diameter
mm
300
Baffle cut-out diameter
mm
283
Overall depth
mm
155
Net weight
kg
5.5
enclosure of 50 litre in an anechoic chamber incl. 2nd and
3rd harmonic distortion raised 20dB.
6.00
Recommended reflex enclosure:
8L/77Hz, -3dB=104Hz, BRD=70mm/178mm long
20L/64Hz, -3dB=70Hz, BRD=90mm/155mm long
Neodymium
Cone Drivers
MOUNTING INFORMATION
11
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