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: 1213 mm (121.3 cm) · 1 mm = 0.46 px
JBL HDI-3800vsMartinLogan Motion XT F100
The MartinLogan Motion XT F100 stands 121.3 cm tall — about 11.2 cm more than the JBL HDI-3800 at 110.1 cm. On footprint the MartinLogan Motion XT F100 is the wider cabinet (31.8 cm versus 27.7 cm). The MartinLogan Motion XT F100 reaches deeper in the bass, down to 31 Hz versus 37 Hz. Low frequencies come from a 200 mm cone on the JBL HDI-3800 and a 165 mm cone on the MartinLogan Motion XT F100. Both land in a similar price bracket, around $4,750 a pair.
| A | B | |
|---|---|---|
| Manufacturer | JBL | MartinLogan |
| Model | JBL HDI-3800 | MartinLogan Motion XT F100 |
| Height | 1101 mm | 1213 mm |
| Width | 277 mm | 318 mm |
| Depth | 418 mm | 343 mm |
| Weight | 38 kg | 34.5 kg |
| Enclosure | bass-reflex-rear | bass-reflex-down |
| Drivers | 1× 25 mm tweeter (Teonex compression driver), 3× 200 mm woofer (Advanced Aluminum Matrix cone) | 1× tweeter (Folded Motion XT (AMT)), 1× 165 mm midrange (Nomex-reinforced Kevlar cone), 3× 165 mm woofer (aluminium cone) |
| Frequency — low | 37 Hz | 31 Hz |
| Frequency — high | 30000 Hz | 25000 Hz |
| Sensitivity | 92 dB | 92 dB |
| Impedance | 4 Ω | 4 Ω |
| Recommended amp | 25–300 W | 20–450 W |
| MAP (USD) | $5,000 / pair | $4,500 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | jbl.com ↗ | martinlogan.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.