Sophia Electric™ Premium 6SL7 Input/Driver Tubes
Not all tubes are created equal.We cherry picked the best tubes from the production for the US market. Our US engineers further tested these selected tubes and classified them into 3 grades:
Grade A (top 10%)
Grade B (top 25%)
Grade C
6SL7 Specification is identical to GE/Sylvania/RCA/Kenrad 6SL7
PRICING
| Grade A per unit with 1 year warranty. | €160 |
| Grade A per unit with 30 days warranty. | €135 |
| Grade B per unit with 1 year warranty. | €135 |
| Grade B per unit with 30 days warranty. | €110 |
| Grade C per unit with 1 year warranty. |
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| Grade C per unit with 30 days warranty. |
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Orders and warranty