| Date | Region | Description | Price | Seller |
|---|---|---|---|---|
| Canada | Brent Averill Vintage API 312 Card - Serviced!Brent Ave... | $1,450.00 | ||
| USA | Great sounding api card made from vintage parts. A Jens... | $600.00 | ||
| Australia | Rare Opportunity as these never come up for saleA beaut... | $7,998.95 | ||
| USA | For sale is a vintage API 312 mic preamp for 500 series... | $1,450.00 |