Pioneer S-31-LR-K: Connections

4

En

Attaching and Removing the Grille

It is recommended that this speaker system be used with the grille 

net attached, but it can be removed if desired. To remove, follow 

these instructions:

1

To remove the grille, place your fingers at the outside of 

the grille toward the bottom and pull gently outward. Then 

do the same at the top to detach.

2

To reattach the grille, hold the speaker grille with the 

triangular symbol pointing upward, then align the four pins 

on the back side of the grille with the holes in the speaker 

and press in firmly.

Connections

This speaker does not include speaker cables used for connecting 

to an amplifier.

Connecting the cables

1

Switch off the power to your amplifier.

2

Connect the speaker cables to the input terminals (lower) 

on the back of the speaker. For input terminal polarity, red is 

positive (+) and black is negative (–).

3

Connect the other ends of the cables to the amp's 

speaker output terminals (for more details, refer to your amp 

instruction manual).

• Grasp the cap knobs on the lower input terminals and rotate 

them to the left (counter-clockwise), insert the speaker cable 

wires into the holes in the terminal posts, then tighten the 

knobs to secure the short bar as well as the wires.

• You can also connect the speaker’s terminals with a banana 

plug. 

• When using a banana plug, first remove the caps covering the 

speaker terminal.

• After connecting the plugs, pull lightly on the cables to make 

sure that the ends of the cables are securely connected to the 

terminals. Poor connections can create noise and 

interruptions in the sound.

• If the cables’ wires happen to be pushed out of the terminals, 

allowing the wires to come into contact with each other, it 

places an excessive additional load on the amp. This may 

cause the amp to stop functioning, and may even damage the 

amp.

• When using a set of speakers connected to an amplifier, you 

won’t be able to obtain the normal stereo effect if the polarity 

(

+

, 

–

) of one of the speakers (left or right) is reversed.

Red terminal (+)

Black terminal (

−

)

Hot-side speaker cord

Common-side speaker cord

CAUTION

These speaker terminals carry 

HAZARDOUS LIVE 

voltage

. To prevent the risk of electric shock when 

connecting or disconnecting the speaker cables, 

disconnect the power cord before touching any 

uninsulated parts.

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