Rear series of bars show percentage content of Copper in the respective
connectors.
Front series of bars show electrical conductivity relative
to IACS
standards.
Fot those of you who find graphs daunting the data is displayed in the table below:
| Copper Content | Manufacturer | IACS% Conductivity** |
| 99.996% | Bocchino Audio: All connectors | 101 |
| 68 | WBT Top Line | 26 |
| 63 | Vampire 807 | 26 |
| 88 | Vampire 800C | 19 |
| 62 | Cardas SR RCA | 26 |
| 52 | WBT 147 Midline | 28 |
**Conductivity values are not specific and accurate to the integer
quoted and will vary slightly ( +/-5% except for Pure Copper which is always
101% IACS ) due to irregular distributions of component elements in machined
bar stock.