Product Description | Year Released | List Price | Average Price | Pricing Trend | Number Tracked | Resale Popularity | | 4-Pole Filter | 1998 | $500 | $226 |  | 30 |  | | MicroQ | | | $505 |  | 377 |  | | Microwave | | $2,000 | $697 |  | 106 |  | | Microwave II | 1998 | $1,300 | $495 |  | 72 |  | | Microwave XT | 1998 | $2,000 | $680 |  | 208 |  | | Pulse | 1996 | $650 | $381 |  | 144 |  | | Pulse+ | | | $461 |  | 53 |  | | Q Keyboard | | | $1,399 |  | 108 |  | | Q Rack | 1999 | $1,600 | $854 |  | 45 |  |
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