OCT-6.5MA-NE1.75V
Black aluminium basket
Paper cone cloth edge
1.75 KCCAW voice coil
4.5 OZ high strength NEO Magnet
Frequency : 45-1.8KHz
RMS power:300 Watts
Impedance 8OHMS
Sensiticity: 96.5dB
| Specifications | |
| Nominal Diameter | 6.5inch |
| Nominal Impedance | 8 ohms |
| RMS Power Handing | 300W |
| MAX Power Handing | 600W |
| Sensitivity (1w/1m) | 96.5dB |
| Frequency Response | 45-1.8KHZ |
| Motor | |
| Voice Coil Diameter | 45.85mm（1.75inch) |
| Voice Coil Former Material | KC |
| Winding Material | CCAW |
| Cone Material | Paper |
| Dust Cap Material | Paper |
| Surround Material | cloth edge |
| Basket Material | Aluminum |
| Magnet Material | NEO |
| Magnet Weight | 4.5 OZ |
| Displacement Volume |
| Thiele & Small Parameters | |
| Equivilant Volume | Vas 3.8495L |
| Excursion (one way) | Xmax mm |
| Free Air Resonance | Fs 142 Hz |
| Mechanical Factor | Qms 5.465 |
| Electrical Factor | Qes 0.886 |
| Total Factor | Qts 0.762 |
| Moving Mass | Mms 10.878g |
| Compliance | Cms 0.115MM/N |
| Bl Factor | Bl 7.304N/A |
| Diaphragm Area | Sd 153.94 cm² |
| Dc Resistance | Re 4.86ohms |
| Measurement | |
| Overall Diameter | 185.5mm（7.27inch） |
| Overall Depth | 80mm（3.14inch） |
| Front Mount Baffle Cutout | 151.5mm（5.96inch） |
| Mouting Depth | 68mm（2.67inch） |
| Motor Diameter |
KLIPPEL ANALYZER SYSTEM
Report 
Table Linear Parameters
|
Name Value Unit Comment |
|||
|
Electrical Parameters |
|
|
|
|
Re |
4.86 |
Ohm |
electrical voice coil resistance at DC |
|
Le |
0.051 |
mH |
frequency independent part of voice coil inductance |
|
L2 |
0.370 |
mH |
para-inductance of voice coil |
|
R2 |
3.81 |
Ohm |
electrical resistance due to eddy current losses |
|
Cmes |
203.89 |
μF |
electrical capacitance representing moving mass |
|
Lces |
6.12 |
mH |
electrical inductance representing driver compliance |
|
Res |
29.95 |
Ohm |
resistance due to mechanical losses |
|
fs |
142.4 |
Hz |
driver resonance frequency |
|
|
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|
Mechanical Parameters |
|
|
|
|
(using laser) |
|
|
|
|
Mms |
10.878 |
g |
mechanical mass of driver diaphragm assembly including air load and voice coil |
|
Mmd (Sd) |
8.719 |
g |
mechanical mass of voice coil and diaphragm without air load |
|
Rms |
1.781 |
kg/s |
mechanical resistance of total-driver losses |
|
Cms |
0.115 |
mm/N |
mechanical compliance of driver suspension |
|
Kms |
8.71 |
N/mm |
mechanical stiffness of driver suspension |
|
Bl |
7.304 |
N/A |
force factor (Bl product) |
|
Lambda s |
0.111 |
|
suspension creep factor |
|
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|
Loss factors |
|
|
|
|
Qtp |
0.766 |
|
total Q-factor considering all losses |
|
Qms |
5.465 |
|
mechanical Q-factor of driver in free air considering Rms only |
|
Qes |
0.886 |
|
electrical Q-factor of driver in free air considering Re only |
|
Qts |
0.762 |
|
total Q-factor considering Re and Rms only |
|
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|
Other Parameters |
|
|
|
|
Vas |
3.8495 |
l |
equivalent air volume of suspension |
|
n0 |
1.207 |
% |
reference efficiency (2 pi-radiation using Re) |
|
Lm |
92.84 |
dB |
characteristic sound pressure level (at 1 m for 1 W @ Re) |
|
Lnom |
92.00 |
dB |
nominal sensitivity (SPL at 1 m for 1 W @ Zn) |
|
|
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|
rmse Z |
3.37 |
% |
root-mean-square fitting error of driver impedance Z(f) |
|
rmse Hx |
2.80 |
% |
root-mean-square fitting error of transfer function Hx(f) |
|
|
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|
Series resistor |
0.00 |
Ohm |
resistance of series resistor |
|
Sd |
153.94 |
cm2 |
diaphragm area |
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