John Marks sent me the review pair of this elegant British, sealed-box minimonitor to run through my loudspeaker test regime. I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the ATC's frequency response in the farfield (I measured serial no.1002), and an Earthworks QTC-40 for the nearfield responses. All measurements were taken without the grille.
As expected from its diminutive size, the SCM7 v.3 is not very sensitive; my estimate of its voltage sensitivity came in at 82dB(B)/2.83V/m, which is 2dB below the specified 84dB. The…