Graph: My Typical Room Frequency Response Graph
Receiver: HK 3380
Speakers (x4): Sansui SP2500
CD Player: Pioneer DVR 220
Media: Audio Test CD Vol. III 1/3 Octave Pink Noise (testaudio.com)
Mean across entire spectrum: 81.03 dB
Standard deviation across entire spectrum: 6.25 dB
Measured from listening position with Radio Shack digital SPL meter on tripod with full spectrum pink noise track set at 80 dB.