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| 803 DIAMOND Technical Specifications |
|
| Woven Kevlar | yes |
| Crossover Tuning | yes |
| Flowport | yes |
| Mushrooms | yes |
| FST | yes |
| Tweeter on Top | yes |
| Matrix | yes |
| Rohacell | yes |
| Diamond Tweeters | yes |
| De-coupling | yes |
| Quad Magnet Tweeter Motor | yes |
| Dual Magnet Tweeter Motor | yes |
| Description | 3-way vented-box system |
| Drive units | 1x ø25mm (1 in) diamond dome high-frequency 1x ø150mm (6 in) woven Kevlar® cone FST™ midrange 3x ø180mm (7 in) Rohacell® cone bass |
| Frequency range | -6dB at 28Hz and 33kHz |
| Frequency response | 35Hz – 28kHz ±3dB on reference axis |
| Dispersion | Within 2dB of reference response |
| Horizontal: | over 60º arc |
| Vertical: | over 10º arc |
| Sensitivity | 90dB spl (2.83V, 1m) |
| Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m) |
| Nominal impedance | 8Ω (minimum 3.0Ω) |
| Crossover frequencies | 350Hz, 4kHz |
| Recommended amplifier power | 50W – 500W into 8Ω on unclipped programme |
| Max. recommended cable impedance | 0.1Ω |
| Height: | 1164mm (45.8 in) (not including feet) |
| Width: | 306mm (12 in) |
| Depth: | 457mm (18 in) |
| Net weight | 41kg (90 lb) |
| Cabinet: | Cherrywood Rosenut Piano Black Gloss |
| Grille: | Black cloth |
