MRS6.5C-FE1.75VC
Black steel basket
Paper cone cloth edge
1.75KCCAW voice coil
46Oz NEO Magnet
Frequency : 400-5.6K/Hz
RMS power:300Watts
Impedance 4OHMS
Sensiticity:104.5dB
| Specifications | |
| Nominal Diameter | 6.5inch |
| Nominal Impedance | 4 ohms |
| RMS Power Handing | 300W |
| MAX Power Handing | 600W |
| Sensitivity (1w/1m) | 104.5dB |
| Frequency Response | 400-5.6KHZ |
| 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 | Steel |
| Magnet Material | Ferrite |
| Magnet Weight | 46 OZ |
| Displacement Volume |
| Thiele & Small Parameters | |
| Equivilant Volume | Vas 0.284L |
| Excursion (one way) | Xmax mm |
| Free Air Resonance | Fs 521 Hz |
| Mechanical Factor | Qms 9.855 |
| Electrical Factor | Qes 1.055 |
| Total Factor | Qts 0.953 |
| Moving Mass | Mms 12.647g |
| Compliance | Cms 0.007 MM/N |
| Bl Factor | Bl 11.331 |
| Diaphragm Area | Sd 165.13 cm² |
| Dc Resistance | Re 3.3ohms |
| Measurement | |
| Overall Diameter | 170.5mm（6.68inch） |
| Overall Depth | 81mm（3.18inch） |
| Front Mount Baffle Cutout | 148.5mm（5.84inch） |
| Mouting Depth | 76mm（2.99inch） |
| Motor Diameter | 138mm（5.42inch） |
KLIPPEL ANALYZER SYSTEM
Report
Table Linear Parameters
|
Name Value Unit Comment |
||||||
|
Electrical Parameters |
|
|
|
|||
|
Re |
3.27 |
Ohm |
electrical voice coil resistance at DC |
|||
|
Le |
0.038 |
mH |
frequency independent part of voice coil inductance |
|||
|
L2 |
0.384 |
mH |
para-inductance of voice coil |
|||
|
R2 |
3.09 |
Ohm |
electrical resistance due to eddy current losses |
|||
|
Cmes |
98.50 |
μF |
electrical capacitance representing moving mass |
|||
|
Lces |
0.94 |
mH |
electrical inductance representing driver compliance |
|||
|
Res |
30.52 |
Ohm |
resistance due to mechanical losses |
|||
|
fs |
521.7 |
Hz |
driver resonance frequency |
|||
|
|
||||||
|
Mechanical Parameters |
|
|
|
|||
|
(using laser) |
|
|
|
|||
|
Mms |
12.647 |
g |
mechanical mass of driver diaphragm assembly including air load and voice coil |
|||
|
Mmd (Sd) |
10.249 |
g |
mechanical mass of voice coil and diaphragm without air load |
|||
|
Rms |
4.206 |
kg/s |
mechanical resistance of total-driver losses |
|||
|
Cms |
0.007 |
mm/N |
mechanical compliance of driver suspension |
|||
|
Kms |
135.89 |
N/mm |
mechanical stiffness of driver suspension |
|||
|
Bl |
11.331 |
N/A |
force factor (Bl product) |
|||
|
Lambda s |
0.233 |
|
suspension creep factor |
|||
|
Loss factors |
|
|
|
|||
|
Qtp |
1.068 |
|
total Q-factor considering all losses |
|||
|
Qms |
9.855 |
|
mechanical Q-factor of driver in free air considering Rms only |
|||
|
Qes |
1.055 |
|
electrical Q-factor of driver in free air considering Re only |
|||
|
Qts |
0.953 |
|
total Q-factor considering Re and Rms only |
|||
|
|
||||||
|
Other Parameters |
|
|
|
|||
|
Vas |
0.2840 |
l |
equivalent air volume of suspension |
|||
|
n0 |
3.673 |
% |
reference efficiency (2 pi-radiation using Re) |
|||
|
Lm |
97.67 |
dB |
characteristic sound pressure level (at 1 m for 1 W @ Re) |
|||
|
Lnom |
98.55 |
dB |
nominal sensitivity (SPL at 1 m for 1 W @ Zn) |
|||
|
|
||||||
|
rmse Z |
5.08 |
% |
root-mean-square fitting error of driver impedance Z(f) |
|||
|
rmse Hx |
16.66 |
% |
root-mean-square fitting error of transfer function Hx(f) |
|||
|
|
||||||
|
Series resistor |
0.00 |
Ohm |
resistance of series resistor |
|||
|
Sd |
165.13 |
cm2 |
diaphragm area |
|||
