A l e x i A O w n e r ’ s M A n u A l
12
Wilson Audio Specialties
echo, primarily midrange and high frequency sounds reflect off of two parallel hard
surfaces. The sound literally reverberates back and forth until it is finally dissipated
over time. You can test for slap echo in any room by clapping your hands sharply in the
middle of the room and listening for the characteristic sound of the echo in the mid-
range. Slap echo destroys the sound quality of a stereo system in two ways:
• It adds harshness to the upper midrange and treble by storing time-domain
smearing energy.
• It destroys the delicate phase relationships, which help to establish an ac-
curate soundstage.
Slap echo (see Figure 1) is a common acoustical problem in the typical domestic
figure 1—cOMMOn rOOM reflectiOn prObleMs
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