Platinum4
The Platinum4 is a moving iron phono cartridge with a Mediterranean olive wood body, an aluminum cantilever and a bonded elliptical diamond. It suits vinyl listeners who want a wood-body Grado in the Timbre Series, in high or low output, stereo or mono.
- Moving iron design with fixed coil and low moving mass
- Mediterranean olive wood body
- Bonded elliptical diamond on aluminum cantilever
- High (4.0 mV) or low (1.0 mV) output, stereo or mono
- Tracking force 1.6-1.9 g
- Not sensitive to capacitive load
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The Platinum4 is a moving iron cartridge from Grado's Timbre Series. It uses the flux-bridger principle, in which the coil stays fixed and the moving mass is very low. The stylus is a bonded elliptical diamond on an aluminum cantilever.
The body is Mediterranean olive wood. Its reshaped housing gives a better view of the cantilever during setup, which helps with alignment and with fitting a range of tonearms. Internally the signal path uses 6N OCC copper, and each cartridge is cryogenically treated and damped to reduce resonance.
It comes as a high-output or low-output stereo version, so it can be matched to a range of phono stages. Mono high-output and mono low-output builds are also made, as special-order items. The cartridge is not sensitive to capacitive load and works with input loads of 10k to 47k ohms. A tracking force of 1.6 to 1.9 grams is specified.
Specifikationer
- Märke
- Grado
- Modell
- Platinum4
- Kategori
- DJ-utrustning › Pickuper och nålar
Cartridge
- Series
- Timbre Series
- Type
- Moving iron (flux-bridger)
- Body
- Mediterranean Olive Wood
- Cantilever
- Aluminum
- Stylus
- Elliptical Diamond
- Builds
- High Output, Low Output, Mono
Output
- Output, high
- 4.0 mV @ 5 CMV (45)
- Output, low
- 1.0 mV @ 5 CMV (45)
- Channel separation
- Average 30 dB, 10-30k Hz
- Controlled frequency response
- 10-60 kHz
Electrical
- Inductance, high output
- 55 mH
- Inductance, low output
- 6 mH
- Resistance, high output
- 660 ohms
- Resistance, low output
- 70 ohms
- Input load
- 10k-47k ohms
- Capacitive load sensitivity
- Non-sensitive
Playback
- Tracking force
- 1.6-1.9 grams
- Compliance
- 20 μm/mN
- Internal wiring
- 6N OCC copper
Physical
- Cartridge weight
- 9.4 grams