TrueScaleCompare speakers at true scale.
TrueSpecsCompare technical specifications (up to 4 speakers).HiFi LadderBrowse every speaker side by side, ordered by size or by price.HiFi SearchFind speakers by the specs you want.TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
References
Front view — side by side at true scale
ACastle Avon 5BKlipsch Heresy IV
Castle Avon 5vsKlipsch Heresy IV
The Castle Avon 5 stands 111.0 cm tall — about 48.0 cm more than the Klipsch Heresy IV at 63.0 cm. On footprint the Klipsch Heresy IV is the wider cabinet (40.7 cm versus 21.0 cm). At 99 dB against 89 dB, the Klipsch Heresy IV is the easier load to drive and plays louder from the same amplifier. The Castle Avon 5 reaches deeper in the bass, down to 35 Hz versus 48 Hz. Low frequencies come from a 150 mm cone on the Castle Avon 5 and a 305 mm cone on the Klipsch Heresy IV.
| A | B | |
|---|---|---|
| Manufacturer | Castle | Klipsch |
| Model | Castle Avon 5 | Klipsch Heresy IV IV |
| Height | 1110 mm | 630 mm |
| Width | 210 mm | 407 mm |
| Depth | 365 mm | 337 mm |
| Weight | 24 kg | 20.4 kg |
| Enclosure | transmission-line | bass-reflex-rear |
| Drivers | 2× 150 mm woofer, 1× 115 mm midrange, 1× tweeter (ribbon) | 1× 25 mm tweeter (K-107-TI titanium compression diaphragm), 1× 44 mm midrange (K-702 polyimide compression diaphragm), 1× 305 mm woofer (K-28-E fiber-composite cone) |
| Frequency — low | 35 Hz | 48 Hz |
| Frequency — high | 20000 Hz | 20000 Hz |
| Sensitivity | 89 dB | 99 dB |
| Impedance | 8 Ω | 8 Ω |
| Recommended amp | 25–100 W | — |
| MAP (USD) | — | $4,198 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | castle.uk.com ↗ | klipsch.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.

