UMAI SpeakersThe signal goes from your amplifier to the driver. Nothing touches it in between. UMAI is a passive full range speaker built around a single 6. 5 driver and no crossover. The cabinet is Baltic birch. The stand is the cabinet. One object, from one decision. Every speaker designer faces the same problem. A single driver can't cover the full frequency range or so the assumption goes. The standard solution is a crossover: an electronic circuit that splits