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User Manual
PIEGA P SUB 4 Active-Subwoofer
Version 1.0
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“Music. That‘s really the only important issue
when it comes to loudspeakers....“
In our view, the superior loudspeaker is the
one that does not interfere. One that adds
no sound of its own. That accurately and
naturally conveys what was played in the
concert or recording studio. Since 1986 we
have been working to perfect this ideal – with
a pioneering spirit, inventiveness and exacting
craftsmanship. You will now be able to hear for
yourself how far we have succeeded.
By purchasing a loudspeaker from PIEGA you
have expressed your trust in our company, for
which we thank you very much. At the same
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time we assure you that you have purchased a
product that is based on twenty years of R & D,
and which in terms of its design represents the
state of the art. We are sure that you will gain
much listening enjoyment from your new Piega
loudspeaker products.
Although using the loudspeakers is very
straightforward, we recommend that you read
the contents of this user manual carefully. It
will explain how to properly connect up your
new PIEGA loudspeaker products and install
them for optimum results. It also provides you
with some useful information that will increase
your understanding of loudspeakers. But don’t
worry. Even apparently complicated details
are explained very simply. On the last page
of these instructions you will nd our warranty
conditions. Please also read these carefully just
in case.
We wish you an enjoyable read and above all
much listening enjoyment with your new PIEGA
loudspeakers...!
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Contents
PIEGA P SUB 4
This user manual describes how to connect the PIEGA P SUB 4 active subwoofer to different loudspeaker congurations and the
appropriate setting options for optimum operation in stereo and home cinema mode. It also contains instructions for unpacking and
setting up the P SUB 4.
User Manual
4 Precautions
Before unpacking...
5 Unpacking the P SUB 4
Instructions for unpacking...
6 Installation Instructions
Recommendations for ideal positioning...
7 Connection Options
Connection terminal for different applications...
8 Connecting the System
Conguration examples for stereo and surround mode*...
13 Setting the Sound Characteristics
Setting options for individual requirements...
14 Daily Use
Care and maintenance...
15 Warranty Conditions
Service and warranty conditions
*Other conguration examples can be obtained from www.piega.ch
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Precautions
!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE
OR E
LECTRIC SHOCK DO NOT EXPOSE
THIS
APPLICATE TO RAIN OR MOISTURE
AVIS:
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
DOUBLE INSULATION WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS
CONFORMS TO
UL STD. 650
0
CERTIFIED TO
CAN/CSA STD. E60065
2001310
C
U
S
PIEGA P SUB 4
Before unpacking...
Please read this user manual carefully and pay special attention to the following precautions and warnings. In your own interest, we
advise you to strictly observe the following procedure when installing your new PIEGA P SUB 4.
Warning:
>The PIEGA P SUB 4 subwoofer has been designed
for use with PIEGA loudspeaker products. Nevertheless, the
subwoofer can also be operated with the loudspeakers
of other suppliers
>Ensure particularly that the P SUB 4 is installed
and connected in accordance with the instructions of this
user manual
>The P SUB 4 was only designed for use in dry residential
environments within a temperature range of 10...40°C
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Unpacking the P SUB 4
PIEGA P SUB 4
Special care was taken in the packaging of your P SUB 4 in order to ensure that this new PIEGA quality product reaches your living
room safely and undamaged. In order to avoid any damage when unpacking the loudspeaker, follow closely the instructions below.
Instructions for unpacking...
Procedure:
>Before unpacking, remove any jewelry such as watches, rings,
bracelets etc. in order to avoid scratching the aluminum
>Open the carton as shown in the gure and remove the supply
cable and spikes provided. Leave the protective cushion
>Carefully invert the subwoofer 180° with the carton open and
stand it on the protective cushion so that the carton can be
lifted up and off the loudspeaker
>Remove the protective foil and the upper protective cushion
and by hand t the spikes supplied
>Turn the subwoofer over 180° once more and stand it on
the spikes. To ensure trouble-free operation of the P SUB 4
the spikes must be screwed in...!
>Check that the P SUB 4 has not been damaged in transit.
>Then place the P SUB 4 in the required position
Warning:
The P SUB 4 subwoofer is an active subwoofer with a bass reex system.
>Ensure that the bass reex port is not blocked...!
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Installation Instructions
PIEGA P SUB 4
The P SUB 4 can be installed exibly and easily. Due to its relatively small size, it can be integrated in any unit and can be positioned
as required virtually anywhere in the room. However, to ensure the most natural sound, the P SUB 4 should be placed on the oor
near the two front loudspeakers.
Recommendations for ideal positioning...
Ideal setup:
>For both surround and stereo mode, position the P SUB 4
as close to the two front loudspeakers as possible
>The bass chassis of the P SUB 4 should face the front,
with the connection terminal facing the wall
Surround mode
>Only a small clearance from the wall is required (approx. 30 cm)
for this conguration as the sound is directed forward from the
chassis
>Do not in any way prevent the free movement of the P SUB 4
>Do not place any objects such as vases etc. on the P SUB 4
so as avoid the possibility of accidents
Stereo mode
Note:
Frequencies below 100 Hz cannot be localized by the human ear.
>The exact positioning of the P SUB 4 is largely unnecessary...!
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Connection Options
LFE / IN
HI LEVEL OUTPUT
INPUT
OUTPU
T
R L
HI LEVEL INPUT
230V
POWER
ON
OF
F
PIEGA P SUB 4
Its large range of connection options offers the P SUB 4 a large number of congurations both for stereo and for surround mode.
Refer to the appropriate user manual supplied for specic information on the loudspeakers used and components of your stereo or
surround system.
Connection terminal for different applications...
Note:
>The connection terminal of the P SUB 4 allows a number
of possible conguration options for stereo and surround mode
>Depending on the equipment in use, select the appropriate
conguration (see the following pages)
>The LFE/IN, INPUT, OUTPUT terminals for connecting to the
AV receiver or the stereo amplier require connection cables with
cinch plugs
>The HIGH LEVEL INPUT and HIGH LEVEL OUTPUT terminals
for connecting amplied music signals can be connected to
loudspeaker cables with or without banana plugs
Connecting the supply cable:
>Check whether the default switch position (230/115 V) of your
P SUB 4 corresponds to the standard supply voltage in
your country
>Plug the supply cable provided with the loudspeakers
into the appropriate socket
>Do not switch on the P SUB 4 (POWER ON) until all cable
connections have been made
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Connecting the System
INPUT
OUTPUT
R L
LFE / IN
PHASE
LINE
Subwoofer
L
R
Front R
Rear R
Center
Rear L
Front L
Amplifier
Front
Speaker R
Front
Speaker L
Center
Speaker
Rear
Speaker R
Rear
Speaker L
PIEGA P SUB 4
Conguration example for surround mode
This connection conguration for 5.1 surround applications uses an AV receiver with a separate subwoofer output. Since the AV
receiver handles the bass management in this conguration, the settings for each loudspeaker can be adjusted individually via the
menu. Note that in this case, the LOW PASS setting of the P SUB 4 has no effect (see page 13). Refer to the user manual of your AV
receiver for information on the individual setup controls.
Dolby Digital System - Surround System with AV Receiver
Connection:
>Connect the P SUB 4 cable to the terminal
marked SUBWOOFER (or similar) on the AV receiver
>Connect the P SUB 4 cable to the terminal on the
subwoofer marked LFE/IN
>For this use a suitable connection cable with
cinch plugs (not supplied with the loudspeakers)
>Connect the front, rear and center loudspeakers using the
loudspeaker terminals provided on your AV receiver
>Setting tip: Turn the LOW PASS knob up full and the VOLUME
knob to just over half way
Benet:
The most frequently used and ideal
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connection conguration for 5.1 surround mode
>The P SUB 4 can be tuned for optimum results...!
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Connecting the System
INPUT
OUTPUT
R L
LFE / IN
LINE
PRE OUT
R
L
Right Left
230V
T3. 15AL250V FOR 230V INPUT
T5AL250V FOR 115V INPUT
115/230V - 50/60HZ 500W
Front
Speaker R
Front
Speaker L
Center
Speaker
Rear
Speaker R
Rear
Speaker L
Amplifier
PIEGA P SUB 4
Conguration example for stereo and surround mode
The 5.1 receivers and power ampliers of some manufacturers have a separate NF Out socket for connecting a subwoofer. This
enables the signal to reach the subwoofer without any amplication. Refer to the appropriate manual for information about operation
and connection options for your AV receiver/power amplier.
Dolby Digital System - Surround System with NF Out
Connection:
>Connect the P SUB 4 cable to the AV receiver
terminal marked PRE OUT (or similar)
>Connect the P SUB 4 cable to the subwoofer
terminal marked INPUT
>For this use connection cables with cinch plugs (not supplied)
>Connect the loudspeakers using the loudspeaker terminals
provided on your AV receiver/power amplier
Note:
Frequently used conguration
>Ideal conguration for stereo mode...!
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Connecting the System
INPUT
OUTPUT
R L
LINE
PRE OUTMAIN IN
L
R
Right Left
Front
Speaker R
Front
Speaker L
Amplifier
PIEGA P SUB 4
Conguration example for stereo mode
The power ampliers of some manufacturers feature separate MAIN IN and PRE OUT terminals, allowing the preamplied signal to
reach the subwoofer and to be looped back again ltered. In this way the loudspeakers are relieved in the deep range, thus gaining
in precision and sound characteristics (see page 13). Refer to the appropriate manual for information about operation and connection
options for your power amplier.
Stereo System with power amplier featuring MAIN IN/PRE OUT loop
Connection:
>Connect the P SUB 4 cable to the amplier terminal marked
PRE OUT (or similar) and to the subwoofer terminal marked INPUT
>Connect the P SUB 4 cable to the amplier terminal marked
MAIN IN (or similar) and to the subwoofer terminal marked OUTPUT
>For this use two connection cables with cinch plugs
(not supplied with the loudspeakers)
>Connect the front, rear and center loudspeakers using the
loudspeaker terminals provided on your AV receiver
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Benet:
Preferred conguration in the high end range
>The loudspeakers are relieved in the deep bass range...!
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Connecting the System
HI LEVEL INPUT
Front
Speaker R
Front
Speaker L
Amplifier
PIEGA P SUB 4
This is a widely used conguration for stereo mode, although it is not recommended for surround mode since there is a risk of
overloading with small satellite loudspeakers. With this conguration, the connection is made to the amplier. Refer to the appropriate
manual for information about operation and connection options for your power amplier.
Conguration example for stereo mode
Subwoofer mode via loudspeaker terminals
Connection:
>Connect the P SUB 4 MKII cable to the amplier terminal
marked SPEAKER (or similar)
>Likewise connect up the loudspeakers (parallel) to the terminal
marked SPEAKER (or similar)
>For this use two similar connection cables (not supplied)
Benet:
Frequently used conguration in stereo mode
>Flexible positioning of components...!
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Connecting the System
Rear R Center Rear L
L
R
Front R Front L
Speaker L
Speaker R
230V
POWER
ON
OFF
T3. 15AL250V FOR 230V INPUT
T5AL250V FOR 115V INPUT
115/230V - 50/60HZ 500W
HI LEVEL OUTPUT
HI LEVEL INPUT
Amplifier
PIEGA P SUB 4
Conguration example for stereo mode
Commonly used conguration in stereo mode with the loudspeakers (parallel) connected to the subwoofer. Refer to the appropriate
manual for information about operation and connection options for your stereo amplier.
Loudspeaker terminals on the subwoofer
Connection:
>Connect the P SUB 4 subwoofer cable to your stereo
amplier at the terminal marked SPEAKER (or similar)
>Connect up the loudspeakers parallel to the subwoofer
>For this use suitable loudspeaker cables, if necessary with
banana plugs (not supplied)
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Benet:
Frequently used conguration in stereo mode
>Simple and durable cabling...!
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Settings of the Sound Characteristics
MIN. MAX.
LEVE
L
AUTO POWE
R
LOW PAS
S
PHAS
E
PIEGA P SUB 4
Setting options for individual requirements...
Thanks to the use of the most advanced active electronics, your new P SUB 4 is a cutting edge product in the eld of subwoofers. The
connection and setting options provided on the P SUB 4 allow the best possible connection to your stereo or surround sound system
and can be adapted to your individual audio requirements.
LEVEL
>Use this knob to adjust the subwoofer volume
Setting tip: Turn the subwoofer to maximum volume and then turn it
down until it sounds too quiet for you
LED
>The LED is off when the loudspeaker is switched off, and is red when it is in
standby mode. When the subwoofer is in operation the LED is green to indicate
trouble-free operation
AUTO POWER
AUTO POWER
>Use this switch to activate the standby function of the P SUB 4.
This enables the subwoofer to switch on automatically as soon as a signal
is received and to switch off when there is no more signal. When the AUTO
POWER switch is in the OFF position, the subwoofer stays permanently
switched on >>Factory setting ON
LOW PASS
LOW PASS
>Use this knob to set the crossover frequency between subwoofer and fullrange speaker according to the connection method* used.
This will relieve the satellite loudspeakers in the bass range
>>Factory setting 80 – 100 Hz
PHASE
PHASE-SWITCH
>Use this switch to set the subwoofer to In Phase or Out of Phase.
Depending on the type of loudspeaker, there will be a phase cancelling
(little bass) or a phase correction (normal bass)
>>Factory setting 0
* LOW PASS is not active when the P SUB 4 is connected to an AV receiver as described on page 8
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From development to production, right down to quality testing, PIEGA only uses materials and components of the highest quality. Your
new P SUB 4 has a polished aluminum surface. As this material is very sensitive, it should be treated with due care.
PIEGA P SUB 4
Care and maintenance
Daily Use
Procedure:
>Clean the surface of the P SUB 4 with a soft, uff-free cloth
>If necessary, the P SUB 4 can be cleaned with a vacuum
cleaner set to the lowest power setting
>Never use alcohol or other cleaning agents to clean
your P SUB 4
>If necessary, use a damp cloth with a solution
of lukewarm water and a few drops of washing up liquid
Warning:
On no account open the cabinet of the P SUB 4
>Electronic components carry a dangerous high voltage...!
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Warranty Conditions
PIEGA P SUB 4
The warranty is limited to six years on our loudspeakers and three years on our electronics in accordance with the conditions stated
below. Read through the service and warranty conditions carefully, especially the warnings concerning the purchase of PIEGA
loudspeakers from unauthorized dealers.
Service- and warranty conditions
Warranty conditions
1. Every Piega device leaves the factory in perfect condition. If any manufacturing and/or material defects are
found during normal use of the device, we warrant to repair the device with free parts and labor during the
rst six years from the date of purchase.
2. The registration card for the device must be sent to Piega within six weeks of purchase or registered via the
Internet via www.piega.ch/warranty.
3. The product must have been purchased at an authorized Piega dealer.
4. The warranty will not be applicable if any repair is carried out by a person or a workshop that is not authorized
to do this by Piega.
5. If it is necessary for a device or part of it to be sent to Piega or an approved Piega workshop, the sender is
responsible for paying all transport costs in advance. The original packaging must be used for sending the
complete device.
6. The warranty will not be applicable if the serial number of the device has been modied, removed or made
illegible. It will also not apply if the device is not connected properly or not treated with due care. The warranty
will also not be applicable if the device was modied or repaired in any way that in our view has altered the
correct functioning of the device.
7. Piega shall not be liable for the consequences of any damage.
PIEGA Loudspeaker products from unauthorized dealers
The ofcial PIEGA warranty becomes invalid if a PIEGA loudspeaker product was purchased from an unauthorized dealer
and is therefore a gray market product, or if the original serial number has been intentionally removed, replaced or
made illegible. Should you have any doubt that the dealer you have selected is an ofcially authorized PIEGA dealer, we
recommend that you contact us or the PIEGA sales organization in your country without fail. Please note the PIEGA sales
policy statement at www.piega.ch
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PIEGA SA
Bahnhofstrasse 29
CH-8810 Horgen, Switzerland
Tel.: +41 44 725 90 42
Fax: +41 44 725 91 92
www.piega.ch mail@piega.ch
Subject to modication, in particular technical modications
All specications without guarantee
CONFORMS TO
UL STD. 6500
CERTIFIED TO
CAN/CSA STD. E60065
© Copyright 2004 by PIEGA SA, Switzerland
Design by Piega - All rights reserved
v1.0 041213
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