Cartridge Compliance/Arm Mass chart
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The following is a quick reference for Soundsmith cartridges and tone arm mass matching; The simple rule is that the LIGHTER the arm, the HIGHER the compliance must be. How can you get around this? By using a heavier cartridge, and/or our EZ mount screws, you can effectively make the arm heavier. * Cartridge Mass - PLEASE NOTE - The ES suffix is the current design - earlier models (non ES) weighed less |
| Model [click names below for more] |
Cartridge version |
Cartridge * Mass (grams) |
Compliance μm/mN |
Cartridge Output |
Recommended Loading |
for Tone Arm Mass (grams) |
| The Voice | standard | 6.8 9.2 (ES) |
22 (Medium) | High (2.12mV) | 47 kΩ | ≤ 12 |
| Sotto Voce | standard | 6.8 | 22 (Medium) | Medium (1.1mV) | ≥ 1500 Ω | ≤ 12 |
| Aida | standard | 6.8 9.2 (ES) |
22 (Medium) | High (2.12mV) | 47 kΩ | ≤ 12 |
| Norma | standard | 6.8 | 22 (Medium) | Medium (1.1mV) | ≥ 1500 Ω | ≤ 12 |
| Boheme | standard | 6.8 | 22 (Medium) | High (2.12mV) | 47 kΩ | ≤ 12 |
| Carmen | standard | 6.8 9.2 (ES) |
22 (Medium) | High (2.12mV) | 47 kΩ | ≤ 12 |
| Otello | standard | 6.8 9.2 (ES) |
22 (Medium) | High (2.12mV) | 47 kΩ | ≤ 12 |
| The Voice | High Compliance* | 6.8 9.2 (ES) |
28 (High) | High (2.12mV) | 47 kΩ | ≤ 8 |
| Sotto Voce | High Compliance* | 6.8 | 28 (High) | Medium (1.1mV) | ≥ 1500 Ω | ≤ 8 |
| Aida | High Compliance* | 6.8 9.2 (ES) |
28 (High) | High (2.12mV) | 47 kΩ | ≤ 8 |
| Norma | High Compliance* | 6.8 | 28 (High) | Medium (1.1mV) | ≥ 1500 Ω | ≤ 8 |
| Boheme | High Compliance* | 6.8 | 28 (High) | High (2.12mV) | 47 kΩ | ≤ 8 |
| Carmen | High Compliance* | 6.8 9.2 (ES) |
28 (High) | High (2.12mV) | 47 kΩ | ≤ 8 |
| Otello | High Compliance* | 6.8 9.2 (ES) |
28 (High) | High (2.12mV) | 47 kΩ | ≤ 8 |
| Hyperion | standard | 10.25 12.2 (ES) |
10 (Low) | Low (0.4mV) | 470 - 1000 Ω | 7 - 29 |
| Helios | standard | 10.25 | 10 (Low) | Medium (1.1mV) | ≥ 1500 Ω | 7 - 29 |
| Sussurro | standard | 10.25 12.2 (ES) |
10 (Low) | Low (0.4mV) | 470 - 1000 Ω | 7 - 29 |
| Mezzo | standard | 10.25 | 10 (Low) | Medium (1.1mV) | ≥ 1500 Ω | 7 - 29 |
| Paua | standard | 10.25 12.2 (ES) |
10 (Low) | Low (0.4mV) | 470 - 1000 Ω | 7 - 29 |
| Nautilus | standard | 10.25 | 10 (Low) | Medium (1.1mV) | ≥ 1500 Ω | 7 - 29 |
| Zephyr MIMC Star | standard | 10.25 12.2 (ES) |
10 (Low) | Low (0.4mV) | 470 - 1000 Ω | 7 - 29 |
| Zephyr MK III | standard | 10.25 12.2 (ES) |
10 (Low) | High (2.12mV) | 47 kΩ | 7 - 29 |
| Irox Ultimate | standard | 10.25 | 10 (Low) | High (2.12mV) | 47 kΩ | 7 - 29 |
| Irox Blue | standard | 10.25 | 10 (Low) | High (2.12mV) | 47 kΩ | 7 - 29 |
| NA | 10.25 | 10 (Low) | N/A | NA |
7 - 29 |
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| * SPECIAL ORDER only | ||||||





