Front view — side by side at true scale
AParadigm Premier 700FBCastle Knight 5
| A | B | |
|---|---|---|
| Manufacturer | Paradigm | Castle |
| Model | Paradigm Premier 700F | Castle Knight 5 |
| Height | 1012 mm | 985 mm |
| Width | 215 mm | 200 mm |
| Depth | 321 mm | 335 mm |
| Weight | 21.88 kg | 20 kg |
| Enclosure | bass-reflex-rear | transmission-line |
| Drivers | 1× 25 mm tweeter (X-PAL dome), 1× 140 mm midrange (Carbon-infused polypropylene cone), 2× 140 mm woofer (Carbon-infused polypropylene cone) | 2× 150 mm mid-bass, 1× 25 mm tweeter (soft dome) |
| Frequency — low | 33 Hz | 30 Hz |
| Frequency — high | 25000 Hz | 24000 Hz |
| Sensitivity | 88 dB | 91 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 15–180 W | 25–200 W |
| MAP (USD) | $1,598 / pair | $1,280 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | paradigm.com ↗ | castle.uk.com ↗ |
| Product page | Open product page ↗ | Open product page ↗ |
Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.

