TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — overlaid at true scale
Click either cabinet to swap A ↔ B · Reference height: 335 mm (33.5 cm) · 1 mm = 1.67 px
SVS Prime BookshelfvsCastle Knight 1
The SVS Prime Bookshelf stands 33.5 cm tall — about 4.5 cm more than the Castle Knight 1 at 29.0 cm. On footprint the SVS Prime Bookshelf is the wider cabinet (20.4 cm versus 16.5 cm). At 88 dB against 87 dB, the Castle Knight 1 is the easier load to drive and plays louder from the same amplifier. The Castle Knight 1 reaches deeper in the bass, down to 46 Hz versus 48 Hz. Low frequencies come from a 165 mm cone on the SVS Prime Bookshelf and a 130 mm cone on the Castle Knight 1. Both land in a similar price bracket, around $365 a pair.
| A | B | |
|---|---|---|
| Manufacturer | SVS | Castle |
| Model | SVS Prime Bookshelf | Castle Knight 1 |
| Height | 335 mm | 290 mm |
| Width | 204 mm | 165 mm |
| Depth | 239 mm | 265 mm |
| Weight | 7 kg | 4.5 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (aluminium-dome), 1× 165 mm mid-bass (polypropylene cone) | 1× 130 mm mid-bass, 1× 25 mm tweeter (soft dome) |
| Frequency — low | 48 Hz | 46 Hz |
| Frequency — high | 25000 Hz | 24000 Hz |
| Sensitivity | 87 dB | 88 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 20–150 W | 15–100 W |
| MAP (USD) | $349.99 each | $380 / 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.