Front view — side by side at true scale
ASVS Prime PinnacleBCastle Knight 4
| A | B | |
|---|---|---|
| Manufacturer | SVS | Castle |
| Model | SVS Prime Pinnacle | Castle Knight 4 |
| Height | 1029 mm | 900 mm |
| Width | 201 mm | 165 mm |
| Depth | 340 mm | 270 mm |
| Weight | 25.9 kg | 12.5 kg |
| Enclosure | bass-reflex-rear | transmission-line |
| Drivers | 1× 25 mm tweeter (aluminium-dome), 1× 133 mm midrange (composite glass-fibre cone), 3× 165 mm woofer (polypropylene cone) | 2× 130 mm mid-bass, 1× 25 mm tweeter (soft dome) |
| Frequency — low | 29 Hz | 36 Hz |
| Frequency — high | 25000 Hz | 24000 Hz |
| Sensitivity | 88 dB | 90 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 20–300 W | 25–150 W |
| MAP (USD) | $999.99 each | $1,020 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | svsound.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.

