Yamaha YSP-300 Owner's Manual page 70

You can use the Music Enhancer of this unit to improve the sound nearest to the original depth and width of compression
artifacts such as the MP3 format.
(U.S.A. and Canada models)
Set the operation mode selector to YSP.
Press ENHANCER to select the Music
Enhancer.
The currently selected mode appears in the front
panel display.
ENHANCER
Press ENHANCER repeatedly to switch
between the Music Enhancer levels (OFF,
MIN, and MAX).
ENHANCER
The ENHANCER indicator lights up when
"ENHANCER:HIGH" or "ENHANCER:LOW" is
selected.
\ I /
-- ENHANCER I
/ I \
Lights up
• The Music Enhancer is not compatible with the CINEMA DSP
programs. If a CINEMA DSP program is selected while the
Music Enhancer is on, the Music Enhancer is turned off
automatically. In this case, the Music Enhancer remains off
even after the CINEMA DSP program is canceled. Likewise, if
the Music Enhancer is turned on while a CINEMA DSP
program is selected, the CINEMA DSP program is canceled
automatically. In this case, the CINEMA DSP program remains
off even after the Music Enhancer is turned off.
• The Music Enhancer is available only when a setting other than
My Surround (see page 55) is selected as the beam mode.
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