https://www.synergisticresearch.com/et_pb_layout/blackbox-1/
“There is no other room acoustic enhancement device that I know of that can transform your listening room in the way that the SR Black Box can deliver.”
“It is therefore no surprise that I give the Synergistic Research line of products covered in this review my very highest recommendation…enthusiastically! This is the real deal, amigos!“
https://www.synergisticresearch.com/et_pb_layout/blackbox-2/
“It becomes clear why the fine-tuning of placement matters almost the moment you put the Black Box in the room. Ignoring the bass for a moment, careful tuning snaps the soundstage into sharp focus, adding significantly to the air around instruments within that stage. We can’t ignore bass for too long as that ‘snapping’ into focus has a significant impact on soundstage solidity. Instruments that were seemingly ‘floating’ around the stage are now so ‘planted’ in 3D space, you’ll feel like watering the musicians. This is helped by a distinct sense of improved midrange clarity and even high-frequency extension.
And it’s now that we get to that bass; the Black Box excels at defining the shape and texture of bass notes, whether they are bowed, plucked, struck or electronically derived. Bass notes don’t just ‘start’ and ‘stop’ with greater precision; the physical ‘thereness’ of bass sounds are so precise you will be more able to recognise the difference between both instruments (like a Fender Jazz and Fender Precision bass) and the different style of otherwise very similar players. And, as ever, it’s outstanding at portraying musical intent; letting the musical presentation of the audio equipment do what it does best.
Alan Sircom - Hifi+ - December 2022