I' ve listened to a piano player playing on 2 Roland key board over the K12 powered speakers.
Quite impressive but has low Q . Throw distance is poor.
QSC - K Series Active Loudspeakers

QSC speakers generally to me are not bad, but not great.
Gotta admit, the company has come a long way, they were the face of "loud and cheap" in the 70's, they only built amps then, The only "speaker" I recall was the Bantam (sp?) guitar amp.
Your neighbors called. They like your music.
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