Safety Precautions - JB Systems PSX-12 Manual De Instrucciones

ENGLISH
OPERATION MANUAL
FEATURES
Light weight heavy duty Polyurethane cabinet
Perfect for permanent installations
Perfect for Portable use
High power 12" Woofer
High power 1.34" Titanium Compression Driver & Horn
Built-in Rigging points
Built-in stand adapter
Dual Speakon type connectors
Built-in heavy duty carrying handle
Heavy duty rubber feet.

SAFETY PRECAUTIONS

The PSX-12 can easily reproduce sound pressure levels (SPL) sufficient enough
to cause sever and permanent hearing damage. Always protect your ears when
you are exposed to SPL in excess of 85dB!
Be sure that your power amp is turned off before connecting the speakers.
Even if the speaker cabinet is made of water resistant material, the woofer and
tweeter are not protected against humid and rain. Therefore this speaker is
intended for indoor use only, use of this product outdoors, in humid conditions,
voids all warranties.
Always mount this speaker in safe and stable matter.
Take special care when the cabinets are suspended. This is potentially
dangerous and should only be carried out by technicians who have perfect
knowledge of the techniques and regulations of rigging speakers!
CONNECTIONS
The PSX-12 has two Speakon type connectors. Both connectors are connected in
parallel. This means that you can connect a second PSX-12 in parallel.
Attention: when a second speaker is connected, the impedance drops from 8Ω to
4Ω! In most cases you can only connect 2 cabinets together. However, if your
amplifier supports 2Ω loads, you can connect up to 4 cabinets to each amplifier
output.
JB SYSTEMS 1/18
OPERATION MANUAL
PSX-12
ENGLISH
Parallel connection @ 4Ω:
Parallel connection @ 2Ω: (ATTENTION: not suited for most amplifiers!)
Cables to be used:
You can use readymade cables such as our JB SYSTEMS codes 2-0505 (5m) or
2-0510 (10m) or 2-0525 (25m). Of course you can also assemble the speaker cables
yourself. Take care to use good quality speaker cable with at least 2x 2.5mm²
conductors. You will also need a pair of Neutrik Speakon® NL4FC connectors. This
connector has 4contacts: +1 -1 +2 -2. Only use the +1 and -1 contacts. Your speaker
cable has 2 conductors with different colours. Be sure to connect the same colour on
each side of the cable to the corresponding contact! (+1 to +1 and -1 to -1).
If you inverse the conductors, poor sound quality with a lack of low
frequencies will be the result.
RIGGING POINTS
The PSX-12 cabinets have 4 rigging points
using M8 inserts. These can be used to
suspend (fly) the cabinet in the air. For this
purpose you can use heavy duty eyebolts
with metric M8 thread. In most cases 2
cables will be attached to the top and one is
used to pull up the back.
JB SYSTEMS 2/18
OPERATION MANUAL
PSX-12