Grado Platinum 3

The Platinum3 is an excellent example of the Timbre series’ raison d’être: to start listening to your music with more clarity and depth than you’ve heard before.

Grado has modified their four-piece OTL cantilever technology to achieve a 10% reduction in tip mass compared to the Prestige series and uses ultra-high purity long crystal oxygen-free copper (UHPLC) wire in the coils. The Platinum3 uses a specially designed elliptical diamond by Grado.

Grado has combined newly developed winding techniques with disciplines that are decades old. A new two-step shielding process brings not only exact unison between the four coils, but a clear path for a cleaner signal.

Technical Specifications

Construction

• Cartridge type: Moving Magnet (MM)
• Ultra-high purity copper coil

Audio Performance

• Frequency response: 10-60 kHz
• Channel separation: 30 dB on average (10-30 kHz)
• Compliance: 20 mm / N

Electrical Characteristics

• Load impedance: 10 kΩ - 47 kΩ
• Output voltage:
  • High level: 4.0 mV at 5 cm / s (45°)
  • Low level: 1.0 mV at 5 cm / s (45°)
• Inductance:
  • High level: 55 mH
  • Low level: 6 mH
• Resistance:
  • High level: 660 Ω
  • Low level: 70 Ω

Physical Characteristics

• Weight: 9 g
• Recommended tracking force: 1.6-1.9 g