Sony, Warner, Polygram, Naxos, Telarc, EMI, Colombia, Decca
Paramount, Nimbus, Sain, Sentinel, ECM, Virgin, Hyperion etc. use ATC - you can find a partial list here here - it is likely that about one third of your modern classical collection (last 30 years) will have been monitored through ATC's.
Paramount, Nimbus, Sain, Sentinel, ECM, Virgin, Hyperion etc. use ATC - you can find a partial list here here - it is likely that about one third of your modern classical collection (last 30 years) will have been monitored through ATC's.