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Compare speakers at true scale
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Front view — side by side at true scale
ALeak Sandwich 250BMission 770
Leak Sandwich 250vsMission 770
The Leak Sandwich 250 stands 65.5 cm tall — about 6.5 cm more than the Mission 770 at 59.0 cm. On footprint the Leak Sandwich 250 is the wider cabinet (37.0 cm versus 30.0 cm). Low frequencies come from a 280 mm cone on the Leak Sandwich 250 and a 200 mm cone on the Mission 770. On price, the Mission 770 sits higher — about $3,840 a pair against $2,995 for the Leak Sandwich 250.
| A | B | |
|---|---|---|
| Manufacturer | Leak | Mission |
| Model | Leak Sandwich 250 | Mission 770 |
| Height | 25.8 in | 23.2 in |
| Width | 14.6 in | 11.8 in |
| Depth | 11.8 in | 12.7 in |
| Weight | 60.2 lb | 42.3 lb |
| Enclosure | bass-reflex-rear | bass-reflex-front |
| Drivers | 1× 1.2 in tweeter (coated textile dome), 1× 4.3 in midrange (aluminium-foamcore sandwich cone), 1× 11 in woofer (aluminium-foamcore sandwich cone) | 1× 7.9 in mid-bass (mineral-loaded polypropylene), 1× 1.1 in tweeter (woven textile soft dome) |
| Frequency — low | 42 Hz | 42 Hz |
| Frequency — high | 26000 Hz | 20000 Hz |
| Sensitivity | 88.5 dB | 88 dB |
| Impedance | 6 Ω | 8 Ω |
| Recommended amp | 25–250 W | 25–200 W |
| MAP (USD) | $2,995 / pair | $3,840 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | leakaudio.com ↗ | mission.co.uk ↗ |
| 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.

