User manual
Table Of Contents
HS8/HS7/HS5/HS8S Owner’s Manual
8
HS8S (Subwoofer)
Subwoofer Connections
Connecting the Subwoofer to the 
HS8/HS7/HS5 Speakers
Subwoofer Response Control
8 Power switch
Turns power to the subwoofer ON or OFF.
Rock the switch to the right [ ] to turn the power ON, or to 
the left [ ] to turn the power OFF. The Yamaha logo on the 
front panel will light when the power is ON.
NOTE Turning the power switch ON and OFF in rapid succession 
can cause the device’s electronics to malfunction. Please wait 
for 3 seconds or more after turning the power OFF before 
turning it ON again.
9 AC IN connector
Connect the supplied power cable here. First connect the 
power cord to the subwoofer, then insert the power cord 
plug into the AC outlet.
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1 INPUT L/R connector
These connectors receive the input signal to the 
subwoofer. Balanced XLR and balanced phone jack 
connectors are provided for both the L and R inputs.
The L and R inputs can be used simultaneously. 
Signals supplied to both the L and R inputs are mixed 
internally.
NOTE The XLR and phone jack input connectors can not be 
used simultaneously. Use only one input connector at a 
time.
NOTE Refer to “Connection and Cable Types” on page 14 for 
more connector details.
2 OUTPUT L/R connectors
These are the subwoofer’s output connectors.
The input signals received at the INPUT L and R 
connectors are output via the OUTPUT L and R 
connectors, respectively. Low frequency reproduction 
characteristics can be adjusted via the LOW CUT 
switch and LOW CUT control.
3 LOW CUT switch
When this switch is ON, the low frequencies are 
attenuated prior to output via the OUTPUT L and R 
connectors at the frequency set by the LOW CUT 
control. The low-frequency attenuation cutoff 
frequency can be adjusted via the LOW CUT control.
4 LOW CUT control
Adjusts the low-frequency attenuation cutoff 
frequency between 80 Hz and 120 Hz when the LOW 
CUT switch is ON.
5 HIGH CUT control
Sets the cutoff frequency for subwoofer output high-
frequency attenuation from 80 Hz to 120 Hz.
6 PHASE switch
Switches the phase of the subwoofer output.
This switch should be set to [NORM.] in most 
situations, but in combination with some speakers 
and in some speaker layouts switching to the [REV.] 
setting may improve low-frequency response. Select 
the setting that provides the best bass response in 
your system.
7 LEVEL control
Adjusts the subwoofer output level.
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HS8S signal flow










