Proel LT12P - Manuale (Pagina 10)

10
GENERAL INFORMATION
Thank you for having chosen a PROEL product.
The LITE Series by PROEL is an extended range of ac ve and passive speaker systems with plywood cabinet off ering the
renowned PROEL sound and a high-level performance in a reliable and aff ordable package. For the construc on of the
cabinets we have used plywood, a very lightweight and durable material that makes moving and installing these speakers
very quick and easy. Strong, an -scratch paint and steel grilles with an internal foam layer provide proper protec on
for years of service. The dual-angle pole holder featured in LT8, LT10 and LT12 models off ers the possibility to obtain a
more uniform coverage of the audience.
For the high frequency reproduc on of LITE Series we have designed wide-dispersion horns, able to provide constant
coverage for large audiences and detailed response with low distor on. The high-excursion woofers, together with
carefully tuned vented cabinets, off ers an extended response with deep and ght basses.
4 passive models are available, featuring carefully designed crossover fi lters with HF electronic protec on. The choice
of black or white cabinet, built-in fl ying points and a wide range of accessories make them suitable for any kind of fi xed
installa on.
The LT loudspeaker systems can be combined with the SW subwoofers capable of providing the perfect low frequency
extension for each model of the series.
INSTRUCTIONS (FIG. 1 / 2 / 3)
1. INPUT (SPEAKON)
External amplifi er power input: this is the connector where you plug in the power cable coming from your power
amplifi er or powered mixer. The powered signal is fi ltered by an internal passive crossover that splits the power signal
into a low frequency sec on, sent to the woofer, and a high frequency sec on, sent to the tweeter/driver. The frequency
transi on is around 2KHz. The INPUT has this pin connec on:
PIN1+ (or TIP): posi ve power signal (usually red wire)
PIN1- (or SLEEVE): nega ve power signal (usually black wire)
2. LINK (SPEAKON)
Output of the power signal to be sent to an another satellite loudspeaker. INPUT and LINK connectors are connected
in parallel.
CHOOSE THE AMPLIFIER POWER
We give you two power-handling numbers: AES or CONTINUOUS, and PEAK. These data suggest you can use any amplifi er
with a power capability equal or less the power-handling, but this rule is valid only if the amplifi er never clips.
Preven ng loudspeaker damage caused by clipping, that is likely the number one cause of damage, and assuming you
want to use the full capability of the loudspeaker, we recommend the use of an amplifi er with a built-in limiter to prevent
clipping: in this case the rated power capability must be the same as the con nuous power ra ng of the loudspeaker
into the same specifi ed impedance ( pically 4 or 8 ohms):
• To obtain the best result using 4 (as single 8 ohm speaker for each channel) to 8 (as parallel 4 ohm speaker for each
channel) LT6P connected in stereo, we suggest the use of PROEL AUP4150 amplifi er.
• To obtain the best result using 2 (as single 8 ohm speaker for each channel) to 4 (as parallel 4 ohm speaker for each
channel) LT8P connected in stereo, we suggest the use of PROEL HPX-900 amplifi er.
• To obtain the best result using 2 (as single 8 ohm speaker for each channel) to 4 (as parallel 4 ohm speaker for each
channel) LT10P connected in stereo, we suggest the use of PROEL HPX-900 or HPX-1200 amplifi er.
• To obtain the best result using 2 (as single 8 ohm speaker for each channel) to 4 (as parallel 4 ohm speaker for each
channel) LT12P connected in stereo, we suggest the use of PROEL HPX-1200 amplifi er.
IMPORTANT: Clipping occurs when the signal at the output of any device in the system (not just the amplifi er) reaches its
maximum level. Proper operaƟ on of a sound system includes being aware of the types of audio signals being reproduced,
controlling the output levels accordingly, and operaƟ ng all the devices in the system so that no clipping occurs within
the signal chain.