User`s manual

11
english
GENERAL INFORMATION
Thank you for having chosen a PROEL product. The SW Series is a range of subwoofers designed by Proel to complement
full-range speakers.
Thanks to the variety of size, power and SPL, the SW sub-woofers can offer the perfect low extension solution for any
full-range speaker.
The SW110 is a low profi le, very compact sub-woofer designed to be used in ultra-portable multi-way systems or in fi xed
installations requiring an extended low frequency response. Despite to the small size, SW110A is capable of producing a
high output level with punchy lows and it is the ideal complement to FLASH8A or to a pair of FLASH5A. Thanks to the dual
voice coil and to the stereo crossover, the SW110P can form, together with FLASH5P and with several models from XENIA
and XEOS series, simple and cost-effective installation systems that can be powered using just one stereo amplifi er.
SW110P - PASSIVE VERSION INSTRUCTIONS ( FIG. 1 / 2 )
1. INPUT LEFT channel
External amplifi er power input: these are the terminals where you connect the power cable coming from your power
amplifi er or powered mixer. The powered signal is fi ltered by an internal passive crossover for a better coupling with
external satellite speakers. The INPUT terminals have these connections:
RED +: positive power signal (usually red wire)
BLACK -: negative power signal (usually black wire)
2. OUTPUT LEFT channel
Output of the fi ltered power signal to be sent to satellite loudspeaker. The terminals has the same pin out as specifi ed
above.
3. INPUT RIGHT channel
External amplifi er power input: these are the terminals where you connect the power cable coming from your power
amplifi er or powered mixer. The powered signal is fi ltered by an internal passive crossover for a better coupling with
external satellite speakers. The INPUT terminals have these connections:
RED +: positive power signal (usually red wire)
BLACK -: negative power signal (usually black wire)
4. OUTPUT RIGHT channel
Output of the fi ltered power signal to be sent to satellite loudspeaker. The terminals has the same pin out as specifi ed
above.
BE CAREFUL TO THE POLARITY: it is very important that all the loudspeakers are connected with the same polarity,
otherwise improper results and damages could occur. This is particularly valid for the woofer used in the SW110,
which includes two 8 ohm voice coils that must move together in the same direction. If the polarity of one of them is
inverted compared to the other, the speaker will not move at all and after some time the coils will overheat and then they
will blow.
For checking if the input connection is correct you can do as following. Connect the amplifi er to the subwoofer without
satellites. Send a low frequency signal to one channel ONLY and you will hear the signal at a certain level. Then send the
same signal also to the second channel and, if the polarity is correct, you should hear a louder signal. If the polarity (and
then the connection) is not correct, you will hear the signal level to be reduced.
PARALLEL CONNECTION: in some occasion you could want to connect the SW110P subwoofer to a single dedicated
amplifi er: in this case the inputs must be connected in parallel preserving the same polarity. The amplifi er must be
capable of 200-300W continuos power for a 4 ohm load (resulting from the parallel of 8 and 8 ohm).
CHOOSE THE AMPLIFIER POWER: We give you two power-handling numbers: RMS (continuous), and PEAK. So 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 clip anytime.
Preventing 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 continuous power rating of the loudspeaker into the
same specifi ed impedance (tipically 4 or 8 ohms):
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 operation of a sound system includes being aware of the types of audio signals being reproduced,
controlling the output levels accordingly, and operating all the devices in the system so that no clipping occurs within
the signal chain.