chun howe
Stunt Coordinator
- Joined
- Apr 18, 2003
- Messages
- 119
i roughly tested the receiver with SPL meter at 2 meters away pointing 45 degree towards ceiling.
my speakers are mini monitor with 90/87 efficiency.
at 60dB on vsx-d711, SPL reading is fluctuating on 76dB +/- 3dB. i caculated based on mini's efficiency, receiver is only using 0.125W.
at 50dB on vsx-d711, SPL reading is fluctuating on 88dB +/- 3dB. i caculated based on mini's efficiency receiver is only using 1W.
at 40dB on vsx-d711, SPL reading is fluctuating on 100dB +/- 3dB. i caculated based on mini's efficiency receiver is only using 32W.
at hypothetical situation, say 30dB on vsx-d711, SPL reading WOULD BE fluctuating on 114dB +/- 3dB. using 512W.
besides, mini specs say max input power is 80W, volume at 30dB on vsx-d711 is not achievable.
experts correct me if i am totally off track on this one.
all measurements are 2 meters away from two speakers. i played lone star CD with stereo mode & loudness activated.
my speakers are mini monitor with 90/87 efficiency.
at 60dB on vsx-d711, SPL reading is fluctuating on 76dB +/- 3dB. i caculated based on mini's efficiency, receiver is only using 0.125W.
at 50dB on vsx-d711, SPL reading is fluctuating on 88dB +/- 3dB. i caculated based on mini's efficiency receiver is only using 1W.
at 40dB on vsx-d711, SPL reading is fluctuating on 100dB +/- 3dB. i caculated based on mini's efficiency receiver is only using 32W.
at hypothetical situation, say 30dB on vsx-d711, SPL reading WOULD BE fluctuating on 114dB +/- 3dB. using 512W.
besides, mini specs say max input power is 80W, volume at 30dB on vsx-d711 is not achievable.
experts correct me if i am totally off track on this one.
all measurements are 2 meters away from two speakers. i played lone star CD with stereo mode & loudness activated.