Grado Reference4 Moving Iron Phono Cartridge
$2,150.00
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The Grado Reference4 is the flagship of the Timbre Series, expertly housed in American Osage wood to deliver the highest level of performance in the line. It features a high-precision nude Shibata diamond mounted on a machined boron cantilever for superior tracking and detail retrieval. Built with Grado’s patented flux-bridger moving iron design, the cartridge utilizes a 6N OCC copper signal path that has undergone cryogenic treatment and internal damping. This construction ensures reference-level resolution with a smooth, composed top end, natural midrange presence, and authoritative low-frequency response.
Features & Specifications
| Housing Material | American Osage wood |
| Stylus | Nude Shibata diamond |
| Cantilever | Machined boron |
| Coil Material | 6N OCC copper |
| Tracking Force | 1.6 – 1.9 g |
| Frequency Response | 10 Hz – 60 kHz |
| Channel Separation | Avg. 30 dB (10–30 kHz) |
| Compliance | 20 μm/mN |
| Weight | 9.6 g |
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