UNESCORecords the S3A, has a large reserve of power. Good sound quality and robust construction, fair price.
For 3 years I tried other models in the same price range, or slightly more expensive. This is the one I liked. I enjoy being able to dispense the volume and ability to select frquence cutoff (some sub, 85 Hz is only available on the Adam you can choose). A phase inverter is also pr feels (he does very useful for me).
It is also possible to filter what part to the monitors "top" or let the whole spectrum. I would do of choice.
Only regret: the failure to power through an order to cut the sub and let the monitors work only "top" story to compare. S3A monitors dj down very low (32 Hz), the sub does not normment diffrence to the sound, but it amne of ease. This will not stronger, but it is more specific on. Very good hardware.