Yamaha S215V - Manual (Page 4)

4
Connecting the Speakers
■ Phone Plug Wiring
Phone plugs for connection to the phone jack inputs should be wired as
shown to the right. Be sure to use proper speaker cable — NOT shielded
instrument or line cable — for all speaker connections.
■ Neutrik NL4FC Plug Wiring
If you will be using the Neutrik connectors for speaker input,
wire the plugs as shown to the right. Be sure to use proper
speaker cable — NOT shielded instrument or line cable — for
all speaker connections.
■ Full-range Connection
Each speaker features four input/parallel connectors—two 1/4” phone jacks and two Neutrik NL4MP connectors.
Use either a phone jack or a Neutrik connector to receive input from your sound system/power amplifier. One of
the spare connectors can be used to parallel-connect an additional speaker (keeping in mind the impedance consid-
erations mentioned below).
Impedance Considerations
When connecting speakers in parallel be sure to check the rated load impedance of the power amplifier. Most
power amplifiers are capable of safely driving speakers with minimum impedance of 8 ohms or 4 ohms. A pair of
parallel-connected 8-ohm speakers have a total impedance of 4 ohms. The S112V/S115V/SM10V/SM12V/
SM15V/SW115V/SW118V are 8-ohm speakers, and two of these can safely be paralleled on one output. The
S215V/SW218V, however, has an impedance of 4 ohms and should not be parallel-connected with another
S215V/SW218V or any other model. These models can be connected in parallel, however, if you are using a
power amplifier that can safely drive load impedances of 2 ohms or lower.
2– (NO USE)
2+ (NO USE)
1+ : HOT(+)
1– :COLD (–)
Neutrik NL4FC connector
MIXING
CONSOLE
GRAPHIC
EQUALIZER
SPEAKER
SYSTEMS
L
R
L
R
SPEAKER
SYSTEMS
POWER
AMPLIFIER
L
R