Ortofon Series 300 MM cartridges technical data
|
Technical data |
320 U(niversal) |
310 U(niversal) |
305 U(niversal) |
|
Output voltage at 1000 Hz, 5cm/sec. |
> 5.0 mV |
> 5.0 mV |
> 5.0 mV |
|
Channel balance at 1 kHz |
< 1.5 dB |
< 2.0 dB |
< 2.0 dB |
|
Channel separation at 1 kHz |
> 22 dB |
> 22 dB |
> 20 dB |
|
Frequency response |
20-22.000 Hz |
20-20.000 Hz |
20-10.000 Hz |
|
Tracking ability (315Hz, lateral) |
> 70 µm |
> 60 µm |
> 60 µm |
|
Compliance, dynamic (lateral, vertical) |
25/25 µm/mN |
20/20 µm/mN |
20/20 µm/mN |
|
Stylus type |
Fine Line |
Elliptical |
Spherical |
|
Stylus tip radius |
r/R 8/40 µm |
r/R 8/18 µm |
18 µm |
|
Equivalent stylus tip mass |
0.50 mg |
0.50 mg |
0.50 mg |
| Tracking force range |
1.25-1.75 g
(12.5-17.5 mN) |
1.25-1.75 g
(12.5-17.5 mN) |
1.25-2.0 g
(12.5-20 mN) |
|
Tracking force, recommended |
1,5 g (15mN) |
1,5 g (15mN) |
1,5 g (15mN) |
|
Tracking angle (vertical) |
20° |
20° |
20° |
|
Internal resistance |
100 Ohm |
100 Ohm |
100 Ohm |
|
Inductance |
550 mH |
550 mH |
550 mH |
|
Recommended load resistance |
470 Ohm |
470 Ohm |
470 Ohm |
|
Recommended load capacitance |
100-400 pF |
100-400 pF |
100-400 pF |
|
FIM distortion |
< 1% |
< 1% |
< 1% |
| Cartridge weight |
5 g/6 g |
5 g/6 g |
5 g/6 g |
|
Replacement stylus |
320 |
310 |
305 |
|
