Changing The Sound Quality; The Vgca Circuit; To Adjust The Tone Quality; Maximizing The Bass - Cinema Bass - Technics SC-HDV600 Operating Instructions Manual

A
-VGCA
–CINEMA BASS
B
-VGCA
1
–CINEMA BASS
2
BASS
TREBLE
C
-VGCA
–CINEMA BASS
36
RQT5941
BASS TREBLE
-VGCA
–CINEMA BASS
1
b
c
a
OFF ON
2 S/N
f
e
ON
OFF
0 dB –10 dB

Changing the sound quality

The VGCA circuit

A
VGCA: Variable Gain Control Amplifier
You can achieve a clearer sound by using this feature.
Turning the VGCA on and off
Press [-VGCA –CINEMA BASS].
The indicator lights while the VGCA is on.
How this unit's VGCA works
Generally, the rate of noise (N) to sound (S) worsens as you lower
the volume on an amplifier. With this unit, however, the VGCA
circuit changes the gain between 0 and –10 dB, thereby maintaining
the same S/N ratio. This change in gain is then maintained as you
continue to lower the volume, allowing you to enjoy a better S/N
ratio than if the feature was off.
q Structure of the amplifier
a Input
b Electronic volume control
d
c Variable gain control amplifier
d Power amplifier
w Changes to the S/N ratio when the volume is lowered
(simplified)
e Gain variation range
f Difference between the S/N ratio when the feature is on and off
g Reduction in volume

To adjust the tone quality

B
1
Press [-VGCA –CINEMA BASS] to turn
the VGCA off.
2
Press [BASS (e or r)] (bass) or
g
[TREBLE (e or r)] (treble).
Note
You cannot adjust the tone while CINEMA BASS or the VGCA
is on.

Maximizing the bass - CINEMA BASS

C
Optimize the tone for movie viewing.
Press and hold [-VGCA –CINEMA BASS]
until " " appears on the display.
The VGCA turns off if it was on.
To cancel
Press and hold [-VGCA –CINEMA BASS].
The feature is also canceled when you press [-VGCA –CINEMA
BASS] to turn the VGCA on.