POPORI ACOUSTICS WR2 User manual

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EN
INSTALLATION AND USER MANUAL
WIDE RANGE ELECTROSTATIC SPEAKERS
POPORI ACOUSTICS CO. LTD.
www.poporiacouscs.com
VERSION:23/1
WR2
WR2 XL

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EN
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Congratulaons on purchasing one of the world’s best electrostac speakers.
With proper care, they will provide you with many years of musical enjoyment!

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EN
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Please read this manual carefully before unpacking, moving, posioning, and the rst use of
your speakers. Please do not disassemble any of the electronic parts of this product or touch
the electrostac foil membrane; this will invalidate the warranty. Only the manufacturer, their
authorized service agents, or distributors are authorized to open any electronic parts.
IMPORTANT SAFETY INSTRUCTIONS
Before installing the speakers, please carefully read and obey the safety and security notes
and the instrucons in this manual to ensure safe and reliable operaon of the equipment.
Not following these warnings and instrucons will VOID the warranty of this product.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE THE COVER TO THE BLACK BOX BETWEEN THE LEGS
OF THE SPEAKERS. THERE ARE NO USER-SERVICEABLE PARTS
INSIDE. REFER ALL SERVICING NEEDS TO AN AUTHORIZED SER-
VICE AGENT.
The lightning ash with arrowhead symbol, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure that may be of
sucient magnitude to constute a risk of electric shock.
The exclamaon point within an equilateral triangle is intended to
alert the user to the presence of important operaon and main-
tenance (servicing) instrucon in the literature accompanying the
speaker.
WARNING:
THE APPARATUS SHALL NOT BE EXPOSED TO LIQUIDS NOR SHALL ANY OBJECT
CONTAINING LIQUID BE PLACED ON THE SPEAKER.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING

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EN
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IMPORTANT!
1) Read these instrucons.
2) Keep these instrucons.
3) Heed all warnings.
4) Follow all instrucons.
5) Do not use this apparatus near water or other liquids.
6) Clean only with a dry lint-free cloth or with a so brush. DO NOT USE A VACUUM
CLEANER OR ANY TYPE OF CLEANSER OR POLISH!
7) Install in accordance with the manufacturer’s instrucons.
8) Do not install this apparatus near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including ampliers) that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong is provided for your safety. If the
provided plug does not t into your outlet, consult an electrician for replacement of the obso-
lete outlet.
10) Protect the power cord from being walked on or pinched, parcularly at the plug, the
receptacle, and the point where the cord exits from the apparatus.
11) Only use aachments/accessories specied by the manufacturer.
12) Unplug this apparatus during lightning storms or when unused for long periods of me.
13) Refer all servicing to an authorized service agent. Servicing is required when the appara-
tus has been damaged in any way, such as if the power-supply cord or plug is damaged, liquid
has fallen into the apparatus, the apparatus has been exposed to rain or moisture, or if the
apparatus does not operate normally, has been dropped, or used or setup in a manner not in
accordance with this manual.
The components and parts of the packaging materials or the plasc
sacks might pose danger of suocaon for small children if swallowed
or used as playing tools. Keep the packaging material out of reach of
children.
DISREGARDING THESE WARNINGS MAY CAUSE FIRE, ELECTRIC SHOCK OR OTHER
SERIOUS INJURY!
NEVER REMOVE THE COVER OF THE BLACK BOX BETWEEN THE LEGS OF THE
SPEAKER!

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EN
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FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital de-
vice, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protecon against harmful interference in a residenal installaon.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instrucons, may cause harmful interference to radio com-
municaons. However, there is no guarantee that interference will not occur in a parcular
installaon. If this equipment does cause harmful interference to radio or television recep-
on, which can be determined by turning the equipment o and on, the user is encouraged
to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separaon between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Any unauthorized changes or modicaons to this equipment will VOID the user’s authority
to operate this device and VOID its warranty.
This device complies with Part 15 of the FCC Rules. Operaon is subject to the following
two condions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operaon.
Precauons
• Before connecng the AC adapter to the speakers , make sure the voltage designaon
of the speakers corresponds to the local electrical supply. If you are unsure of your power
supply, contact your local power company or electrician. The acceptable power input range
is AC 110V–120V~ / 220V–240V~, 50/60Hz.
• The apparatus with CLASS I construcon shall be connected to a receptacle (MAINS) sock-
et outlet with a protecve earthing connecon.
• The speakers sll receiving power from the AC power source as long as it is connected to
the wall outlet.
• Unplug the power cord if you are not going to use the speakers for an extended period of
me. Hold the power plug when unplugging the unit from the wall. Do not pull on the cord.
• The main plug is used as the mechanism for cung o power (there is no on/o switch) on
the speakers), therefore make sure that both speakers are easy to unplug.
• High temperature will lead to abnormal operaon of this speakers. Do not expose these
speakers to direct sunlight or do not place it near other objects that generate heat.

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EN • When moving the speakers from a cold locaon to a warm one, or vice versa, moisture may
condense on the electronic parts inside the speakers. In such a case, wait 1-2 hours before
connecng the speakers to the electric outlet to facilitate moisture evaporaon. Should this
occur, the speakers may not operate properly and could fail. This will VOID the warranty.
• The speakers run on DC12V. Please ONLY use the power supply included with the speaker.
It delivers a regulated DC12V supply to the electronics built into the black box. There are
high voltage components in the black box; DO NOT OPEN the box. Opening the box will
VOID your warranty.
• Should a speaker become wet for any reason, immediately disconnect the speaker from the
wall outlet. If water spills onto the panel or black box, wait unl the speaker becomes com-
pletely dry again via evaporaon! Do not try to dry the speaker with hair dryer or with other
external heat source! If some other type of liquid gets on a panel, do not plug your speaker
back into the wall and immediately call your dealer.
• Install the speakers in a place where the temperature and the humidity is in the range of
the recommendaon of the manufacturer. The speaker may not be operated in areas where
relave humidity exceeds 70%! Vapor or humidity condensed in the speaker in a wet envi-
ronment may cause re, short circuit; and in the worst case cause a re or severe damage in
the speaker.
• The speakers can generate extremely high sound pressure levels that might damage your
hearing. To avoid eventual damage to your ears, please avoid to listen to the at extreme
volume.
• The recommended maximum power handling capacity of the speakers is approximately 100
was per channel. The apparatus can withhold even much larger load but operang the
speaker for a long me on high load might be harmful to the speaker.
• To avoid the degradaon of the sound quality, do not install the speakers near high power
electric equipment like washing machine, electric motors, or large transformers.
• No naked ame sources, such as lighted candles, should be placed on or near the speakers
because they may cause re, could damage to the speakers or could cause injuries.
• Before moving a speaker, unplug the power cord from the electric outlet!
• Carefully follow all the safety instrucons in this manual pertaining to connecng the
speakers to an amplier or other electrical equipment.
• Never touch the lm panel. Doing so may harm your speakers and will VOID the warranty.
• As discussion in secon VI, NEVER remove the lower most foam insert from the speakers.
Doing so may harm your speakers and will VOID the warranty.
• Please consult your dealer or the authorized service staon in case of any malfuncon of
the speaker.

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EN
II. TECHNICAL DATA
• The external power supply adaptor
The required DC 12V voltage for the operaon of the Popori Acouscs electrostac speakers
is provided by a short circuit protected external power adaptor, featuring all the applicable
cercaons (CE, FTZ, UL, FCC, etc.). The low power, high voltage current needed for the
electrostac charge of the foil is produced by the electronics and transformers mounted
inside the sealed and properly protected black box located between the legs of the speakers.
Possible electric shock is eliminated as long as the black box remains closed. Using the stan-
dard external power adaptor and the appropriate power cord, the speaker may be installed
and operated at almost any place in the world.
WR2 WR2 XL
Frequency response: 30-22000 Hz 30-22000 Hz
Sensivity: 90 dB 91 dB
Sound pressure: 100 dB 105 dB
Lowest impedance: 2.5 Ω
THD: <0.1%
Recommended input Power 50-70 W
Max. input power 250 W
Net. Weight: 35 kg/pc. 37 kg/pc.
Shipping weight: 90 kg/crate 94 kg/crate
Foil thickness: 6 µm
Foil size: 0,4 m2 0,45 m2
Operang temperature range: +10 °C to +55°C
Operang humidity range 5% – 65% (no condensaon)
Storage temperature range −20°C to +55°C
Supply voltage: 12V (DC)
Dimensions: 1660x415x330 mm 1848x415x330 mm
Packaging (crate) 1750x500x600 mm 1950x500x600 mm

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EN III. UNIQUE CHARACTERISTICS OF POPORI ACOSUTICS ELECTRO-STATIC SPEAKERS
• Full range electrostac speakers without dynamic speakers
All of the Popori Acosucs electrostac loudspeakers reproduce music over an audio band
never before possible with electrostac speakers. Our largest model (XR1.23) is capable of
reproducing music over the almost enre human range of hearing, oered at extraordinary
sound pressure levels with vanishingly low levels of distoron. Our loudspeakers produce
absolutely natural, life-like, full bodied sound reproducon WITHOUT using any dynamic
drivers or subwoofers. The smallest of Popori Acouscs electrostac speakers (W360) has a
frequency range of 40 to 20,000 Hz, while the top model (XR1.23) provides linear frequen-
cy response from 25 Hz to 22,000 kHz. The full frequency range of our speakers is repro-
duced by a single electrostac panel. Because of this, we do not need to deal with one of
the most dicult tasks in hybrid designs; namely synchronizing the super fast electrostac
panel with the slower dynamic woofer or subwoofer. Ulizing a totally dierent technology
than other electrostac speakers, the Popori Acouscs speakers provide completely homo-
geneous sound, resembling a live musical performance as it was performed in the actual
recorded venue.
• Impressive sound pressure/high sensivity
Thanks to our proprietary producon technologies and the technical soluons, the Popori
Electronics electrostac speakers can generate up to 110 dB of sound pressure, enough to
ll a reasonably large room with impressive sound. The sensivity of our speakers is model
dependent and ranges from 85 to 96 dB. This means that even an amplier with moderate
power output can easily drive our speakers., There is no need to purchase costly, massive
high power ampliers to enjoy the music at a reasonable volume. Our speakers, driven by a
moderately power integrated amplier (i.e. a 35 WPC tube integrated amp), is oen su-
cient to produce a very dynamic sound in an about 40 square meters (over 400 sq ) room
with almost unmeasurable distoron.
• Impedance stability
Generally, other brands of electrostac speakers exhibit a dramacally rhapsodic impedance
curve dependent of the actual frequency. In the case of some well-known models, the
impedance might fall down to as low as 0.5 ohms in the bass and rise to over 30 ohms in
the high frequencies. This places a tremendous burden on even the most stoughtly built,
high-power solid state ampliers, and the kiss of death and a pu to smoke for anything
less.
The electrostac speakers of Popori Acouscs, thanks to an ingeniously engineering soluon,
produce well-controlled impedance values over all frequencies. Our speakers’ unique design
and construcon guarantees that their impedance never falls below 2.5 ohms

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EN• 100% of the panel radiates
Presently among all available electrostac panels manufacturers, the Popori Acouscs models
are the only panels that use 100% of the foil for sound radiaon. There is not a single square
cenmeter of unused surface area. This is the result of the proprietary string stretching
technology designed and developed by Popori’s engineers. Using this unique approach, the
foil may be stretched both horizontally and vercally with the appropriate force to achieve
our demanding design parameters. Even the corners are completely stretched, making them
usable for sound generaon. This assists our speakers reach their exceponally high sound
pressure levels with such low distoron.
• High reliability, longevity
For decades, Mr. Popori, our chief designer, has repaired and refurbished at panel speakers
for a number the major electrostac speaker manufacturers. Using similar technology that
is incorporated into current Popori speakers, Mr. Popori has refurbished at panel speakers
manufactured in the 80’s and 90’s that sll work awlessly to this day.
Popori speakers use advanced manufacturing technologies, the highest quality components,
and precision producon methods to secure the longevity and long-lasng reliable operaon
of our products. Popori speakers will serve their owners for decades with trouble-free music
producon if used and operated according to the instrucons in this manual. With the return
of the completed warranty card, Popori provides a 5 year full warranty for its products hand-
craed in Hungary.

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EN IV. MAJOR COMPONENTS OF THE WR2/WR2XL, CONTENTS OF THE PACK-
AGING
A
B
(A) - The electrostac radiang panel
(B) - The black box containing the electronics
(C) - Tweeter secon (ribbon high frequency planar transducer)
The following accessories are packed to each speaker:
AC110-230/DC12V power adaptors 2 pc
Instrucon manual 1 pc
Warranty form 1 pc
C