Proel SW118P - Manuale (Pagina 12)

12
GENERAL INFORMATION
Thank you for having chosen a PROEL product.
The SW Series is a range of sub-woofers designed to complement PROEL full-range passive or ac ve speakers. The variety
of size, power and SPL off ered by the fi ve SW models provides the perfect low extension solu on for any speaker model
available in the PROEL range.
All the SW models feature large VC woofers and band-pass or vented design, which provide very ‘punchy’, dynamic lows
together with an extended low frequency response.
The CLASS D amplifi er modules can generate a massive amount of con nuous power in a compact and reliable package.
All the modules include a STEREO pre-amp sec on, 24dB/oct. crossover fi lters with selectable frequency and PHASE
reverse switch. The cabinets are built with 15/18mm plywood and feature 2 or 3 metal handles and sturdy 75mm wheels
for an easy transport.
SW118P - PASSIVE VERSION 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 NOT fi ltered by an internal passive crossover, to obtain the op mal
coupling with external satellite speakers we suggest the use of an amplifi er with a 100Hz low pass fi lter built-in, or the
use of an external analog or digital loudspeaker processor, see the examples sec on for further details.
The frequency transi on suggested must be in the range of 80-120 Hz. The INPUT speakon has this pin connec on:
PIN1+:
posi ve power signal (usually red wire)
PIN1-: nega ve power signal (usually black wire)
2. LINK (SPEAKON)
Output of the power signal to be sent to another loudspeaker. The connector has the same pin out as specifi ed
above.
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 two SW118P (with an impedance of 8 ohm each), we suggest the use of PROEL HPX-
2400 amplifi er for a standard stereo confi gura on.
• To obtain the best result using four SW118P connected in parallel (with a resul ng impedance of 4 ohm for each
channel), we suggest the use of PROEL HPX-2400 amplifi er for a doubled stereo confi gura on.
• To obtain the best result using two SW118P connected in stereo with two respec ve full range speakers, we suggest
the use of PROEL HPD-2004 4 channel amplifi er in a stereo confi gura on BI-AMP/PAR.
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 opera on of a sound system includes being aware of the types of audio signals being
reproduced, controlling the output levels accordingly, and opera ng all the devices in the system so that no clipping
occurs within the signal chain.