Product Description | Year Released | List Price | Average Price | Pricing Trend | Number Tracked | Resale Popularity | 4-Pole Filter | 1998 | $500 | $229 |  | 33 |  | MicroQ | | | $497 |  | 397 |  | Microwave | | $2,000 | $690 |  | 112 |  | Microwave II | 1998 | $1,300 | $489 |  | 74 |  | Microwave XT | 1998 | $2,000 | $675 |  | 220 |  | Pulse | 1996 | $650 | $383 |  | 150 |  | Pulse+ | | | $460 |  | 57 |  | Q Keyboard | | | $1,390 |  | 115 |  | Q Rack | 1999 | $1,600 | $847 |  | 50 |  |
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