Speakers that disappear


I once listened to some speakers where i was surprised by their disappearing act - I don't remember the brand - I think they were stand mounted. I am currently looking for speakers - not too big - and was hoping for recommendations - I know other components matter too but I understand some speakers are noted for this trait and some don't. I listen mostly to classical and vocals, lighter pop - no hard rock (I assume the Beatles and 60's count as "light" :) )  Speakers I have

Harbeth PS3ER XD,  

Martin Logan Stylos Speakers (wall mounted)
Aurum Cantus Leisure 2 Speakers, 

Enigma Speakers -   Enigma Oremus

Had Focal Aria 906

Thanks!  

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Keep in mind that the room and how any speakers interact with the room acoustics matters almost as much as the actual speakers.  

+1 @rick_n 

Every flat surface in the room becomes a transducer and effects the original sound wave. 

Not known for the diminutive size or WAF but once you hear a proper open baffle set up correctly its hard to forget.

I think it's a combination of speaker placement, preamp and speaker also that lets the speakers disappear.