Janszen zA2.1A User manual

7/7/2015
Model zA2.1A Electrostatic Hybrid Loudspeaker
Active Version
O WNER ’ S M ANUAL

zA2.1 Owner’s Manual
 2015 Janszen Loudspeaker, Ltd.
480 Trade Road
Columbus, Oh o 43204 USA
Phone [phone]
ema l [e-mail]
Th s Owner’s Gu de s publ shed only n PDF form n order to save trees and not burden people w th even
more paper than they are already barraged w th. If you’d l ke a pr nted copy and do not have a color pr nter,
there are FedEx Off ce and Staples stores nearly everywhere that can do the pr nt ng job at low cost; you can
ema l them the f le or br ng t to them on a d sk or thumb dr ve. We hope th s s alr ght w th everyone.

Table of Contents
Safety Information ...................................................................... 1
Welcome..................................................................................... 4
Unpacking................................................................................... 5
Carton contents............................................................................... 5
Unpacking ....................................................................................... 5
Feet................................................................................................. 6
Grills................................................................................................ 6
Moving ........................................................................................ 7
Large movements ........................................................................... 7
Small movements............................................................................ 7
Cleaning ..................................................................................... 8
Wooden baffles ............................................................................... 8
Painted and metal surfaces............................................................. 8
Grill cloth ......................................................................................... 8
Warnings......................................................................................... 8
Quick Start.................................................................................. 9
A good starting setup: ................................................................... 12
Tips: .............................................................................................. 13
Connecting and Powering ........................................................ 16
Binding Posts................................................................................ 16
Cables........................................................................................... 16
Power Cords ................................................................................. 16
Powering ....................................................................................... 17
Setup Details ............................................................................ 20
Backward Tilt ................................................................................ 20
Stereo Image ................................................................................ 20
Room Compensation .................................................................... 21
Exaggerated Treble .............................................................................21
Exaggerated Bass................................................................................21
Room Boom and Suck Out...................................................................22
Features and Specifications..................................................... 24
Warranty ................................................................................... 27

S A F E T I N F O R M A T I O N
1
Safety Information
WARNING: DO NOT EXPOSE THESE SPEAKERS TO RAIN OR
WETNESS, WHICH MAY CREATE A DANGEROUS SHOCK HAZARD,
AND MAY DEGRADE OR RUIN THE SPEAKERS.
WARNING: DANGEROUS HIGH VOLTAGES MAY BE PRESENT
INSIDE THE SPEAKERS. TO AVOID THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE THE REAR PANELS OR GRILLS OR OTHERWISE
DISASSEMBLE THE SPEAKERS. THERE ARE NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
WARNING: CHANGES OR MODIFICATIONS TO THESE SPEAKERS
NOT AUTHORIZED BY JANSZEN LOUDSPEAKER, LTD. MAY
INVALIDATE REGULATORY COMPLIANCE AND THUS RENDER THE
SPEAKERS UNSUITABLE FOR HOME USE. THIS INCLUDES KEEPING
THE GRILLS INTACT.
WARNING: JANSZEN SHALL NOT BE RESPONSIBLE FOR ANY
PHYSICAL DAMAGES OR INJURY THAT OCCURS AS A RESULT OF
MISUSE, DISASSEMBLY, OR UNAUTHORIZED CHANGES OR
MODIFICATIONS MADE TO THESE SPEAKERS.
WARNING: CONTINUOUS EXPOSURE TO LOUD SOUND CAUSES
HEARING DAMAGE.
WARNING: AMPLIFIERS CAN DELIVER HIGH VOLTAGES TO THE
INPUT TERMINALS TO THE SPEAKERS. TO AVOID THE RISK OF
ELECTRIC SHOCK, DO NOT ALLOW CHILDREN OR ANIMALS
ACCESS TO THE BINDING POSTS.
Caution:
1. Read these instructions – All safety and operat ng nstruct ons should be
read before the speakers are operated.
2. Save these instructions – keep the safety and operat ng nstruct ons for
future reference.
1

S A F E T I N F O R M A T I O N
2
3. Heed the warnings – All warn ngs about these speakers should be followed.
4. Follow the instructions – All operat ng and use nstruct ons about these
speakers should be followed.
5. Condensation – When mov ng the speakers from a cold to warm locat on,
such as dur ng del very on a cold w nter day, mo sture may condense on
components w th n. If th s should occur, the speakers m ght not operate
properly. Consequently, after br ng ng the speakers n from the cold, we
adv se leav ng them dle for a day before connecting or powering them.
6. Water and moisture – The speakers should not be used near water – for
example, they should not be placed near a bathtub, pool, s nk, lawn spr nkler,
etc., and generally should not be placed outdoors.
7. Heat and flames – The speakers should be located well away from strong
sources of heat or flames, such as f replaces, propane heaters, stoves, etc..
. Particulates – Smoke from tobacco or cook ng, aerosol or splattered grease
from cook ng, and a r pollut on over a long per od of t me can have a
deleter ous effect on any speakers, nclud ng these. In part cular, avo d
spray ng anyth ng anywhere near the speakers.
9. Power cords – As w th any power cords, they should be routed so that they
are not l kely to be walked on or p nched by heavy objects. It s also mportant
to prevent access from an mals or ch ldren that may chew or otherw se
damage the power cords.
10. Liquids – Care should be taken not to sp ll l qu ds onto the speakers.
11. Foreign objects – Care should be taken not to press, poke or otherw se push
fore gn objects nto the cloth gr lls, such as penc ls, f ngers, toy a rplanes, cat
claws, etc..
12. Cleaning – Do not use abras ve cleaners. Do not spray or let anyone else
spray any sort of cleaner, pol sh, cond t oner, or anyth ng else on or near the
gr lls.
Paint: For remov ng d rt and f nger marks, the pa nt can w thstand glass
cleaner, l ghter flu d, alcohol, kerosene, or naptha. Avo d gett ng any of these
substances on the wood or gr lls. Apply any of these to a soft cloth. W pe gently,
because w p ng hard can pol sh away the matte f n sh and leave a sh ny area.
Wood: The wooden surfaces should be w ped w th noth ng more than a soft
cloth dampened w th pla n water. Do not use cleaners, pol shes, cond t oners,
or any other chem cal preparat on. The f nal coat of wax f n sh on the wood
w ll be removed by most of these.
Grill cloth: The gr ll cloth can be vacuumed.

S A F E T I N F O R M A T I O N
3
13. YOUR EARS – D stort on and compress on are what make ord nary
speakers seem loud when the volume goes up, but electrostat c speakers do
not do th s.
Because your zA2.1’s are capable of produc ng h gh sound pressure levels
(SPL) w thout d stort on or compress on, t s easy to exceed safe loudness
w thout not c ng. As a general rule, f you can feel the bass n your belly, or f
you have to shout to be heard by a person s tt ng next to you, t m ght be too
loud.
A pa r of zA2.1 speakers can produce a peak SPL of over 108 dB, even n a
fa rly large room, 114 dB n a small room, and w th some k nds of mus c, a
steady level over 100 dB s poss ble. This can damage your ears
permanently, and fairly quickly.
If you hear r ng ng n your ears soon after or w th n a day or so of l sten ng to
loud mus c, you have damaged your ears, perhaps sl ghtly, but permanently. It
s also poss ble to damage your ears even w thout hear ng r ng ng.
It s mportant to know --
No one notices the usual bits of hearing loss right away after each
overexposure. It adds up over time. If you don't avo d exposure to loud
sound, then at a relat vely young age, mus c w ll sound dull, or certa n notes
w ll be m ss ng, or you w ll hear constant no se n your ears, and you w ll have
trouble understand ng what people are say ng, f rst n no sy places l ke
restaurants, and then everywhere. If you th nk you may already have hear ng
loss, t’s never too late to stop mak ng t worse.
15 minutes s the NIOSH and CDC 2002 recommended maximum
exposure time to a steady SPL of 100 dB. The t me l m t s 4 hours at 85
dB. Th s 4 hour t me l m t s cut n half for each add t onal 3 dB n loudness: 2
hours at 88 dB, 1 hour at 91 dB, and so on.
SO PLEASE BE CAREFUL and you will not hurt your ears and thus
your future enjoyment of music.
You can measure loudness w th a s mple sound level meter. If you w sh to
check your exposure, JansZen can supply a good qual ty sound level meter
such as we use ourselves at modest cost. Rad o Shack also offers one. There
are also apps for smart phones that work as sound level meters and spectrum
analyzers, although they w ll probably m ss the h gh frequency extremes due
to m crophone qual ty. Follow the nstruct ons for the dev ce or app to make
sure your read ngs are val d.

W E L C O M E
4
2
Welcome
ou have chosen JansZen loudspeakers!
The zA2.1 w ll br ng you the utmost n mus c l sten ng enjoyment through ts
except onal pur ty and naturalness n sound reproduct on. Wh le these
speakers nclude esoter c technology, you can rest assured that they are des gned and
bu lt w th the best of advanced mater als and techn ques, and are ready to br ng you
cons stent, unwaver ng performance for decades to come.
Please feel free to keep n touch w th us, lett ng us know anyth ng you’d l ke to tell
about your l sten ng exper ences, or about great ampl f ers, source gear, or mus c that
you have found su t you and the speakers part cularly well. We’re also here to help w th
any setup challenges or other quest ons.
Happy l sten ng.
JansZen Loudspeaker, Ltd.
480 Trade Rd.
Columbus, Oh o 43204
[phone]
[e-mail]
Y

U N P A C K I N G
5
3
Unpacking
o not allow the delivery person to leave until you are satisfied that there
has been no shipping damage.
If there s damage, please refuse the sh pment, and t w ll automat cally come
back to us for repa r/replacement. The s tuat on w ll be harder to handle f you not ce
damage after the del very person has left.
Carton contents
Each of the two cartons should conta n one speaker and one power cord, and one of
these should also conta n one bag of sh m washers. If you have ordered carpet sp kes
for self- nstallat on, one carton w ll have both packages of sp kes.
Unpacking
The follow ng steps w ll get your new speakers out of the cartons and onto your floor
w thout m shap:
1) Move the carton onto a carpeted area, or lay a blanket, bath towel, or other
soft mater al down onto the floor to use as an unpack ng surface.
2) Set the carton on ts long s de w th the flaps up, wh ch matches the “th s
s de up” mark ngs on the s des of the carton, and sl ce through the tape to
free the flaps. We’ll call th s s de the top.
3) Remove the power cord, the bag of sh m washers, and f appl cable, the
boxes of carpet sp kes.
4) Bend the flaps back as far as poss ble. If you are work ng alone, the next
steps w ll be eas er f you tape the flaps down aga nst the s des of the
carton.
5) Roll the carton completely over so that the top has now become the
bottom.
6) L ft the carton away and set t as de.
7) L ft the blue foam nsert away from the speaker.
8) Grasp the top end of the speaker, press ng the rema n ng blue foam nsert
aga nst the speaker so that the two do not separate.
D

U N P A C K I N G
6
9) Gently t lt the speaker up unt l t s vert cal, then further unt l the feet to
the s de w th no nsert touch the floor.
10) Wh le cont nu ng to support the speaker, remove the rema n ng blue foam
nsert, and let the speaker down onto all ts feet.
11) Cl p the t e that holds the bag shut, and sl p the bag part ally down.
12) Place the speaker onto ts top by t pp ng onto ts face f rst, then up onto
ts top, remove the bag, and f nally turn t back onto ts feet.
13) Remove the protect ve f lm from the enclosure.
14) We adv se that you reta n all pack ng mater als n case you want to sell or
return the speakers. The cartons can be folded flat, and the nserts can be
nterleaved to occupy less space.
Feet
If the speakers were f tted w th rubber feet, and you w sh to sw tch over to
carpet sp kes:
1) Lay the speaker onto ts face on a carpeted or other soft surface.
2) Us ng a #3 Ph l ps screwdr ver, remove the screws hold ng the feet n
place.
3) Locate the studs n the package of sp kes.
4) Screw the studs nto the nserts n the speaker base. The studs have a slot
at one end to fac l tate th s.
5) Screw the sp kes onto the studs.
6) If the sp kes have been ordered for use on carpet ng, as we would adv se
to make f rm contact w th the floor, ensure that the adjustable t ps are
screwed n t ghtly.
7) If the sp kes are for use on hard floors, metal pads are ncluded to avo d
damage to the floor, and the adjustable t ps can be used to accommodate
uneven surfaces.
Grills
The speakers are des gned to offer opt mal sound reproduct on w th the gr lls n
place, and they also help protect the electrostat c elements, both from mechan cal
damage and from collect ng part culates from the a r.
The gr lls are permanently nstalled. Any attempt to remove them w ll cause
rreparable damage.

M O V I N G
7
4
Moving
he speakers we gh about 28 kg [62 pounds], so they can be hard to move
for someone work ng alone. If you are unpack ng these alone, here are a
few suggest ons.
Large movements
The eas est way to p ck one up s:
1) Ensure that your cloth ng presents no exposed hardware, such as a belt
buckle, snaps, r vets, buttons, etc., that could come nto contact w th the
speaker and scratch the pa nt or wood.
2) Stand ng to one s de, t lt the speaker forward, allow ng t to rest on one
hand.
3) Grasp the far upper foot on the base w th your other hand.
4) L ft using your knees. Do not stra n your back by l ft ng w th your back.
5) To get through doorways, rotate the speaker onto your h p or up onto the
hand that s grasp ng the foot.
Small movements
When f tted w th rubber feet, the eas est way to move a speaker by small amounts
s to t lt t onto two feet and walk t along by rock ng t back and forth onto one
foot at a t me wh le rotat ng t each t me t’s on one foot.
When f tted w th carpet sp kes, damage to the carpet s l kely when attempt ng to
walk the speakers. In th s case, you would do well to place a pa r of wooden or
plast c slats under pa rs of feet and sl de the speaker along on these l ke a sled.
T

C L E A N I N G
8
5
Cleaning
Wooden baffles
The f nal wood f n sh coat s wax, wh ch w ll be removed by most cleaners. W pe
only w th a soft, damp cloth.
Painted and metal surfaces
These surfaces can w thstand strong cleaners as well as alcohol, but do not spray
anything directly onto the speakers. Dampen a soft cloth w th your solvent or
solut on of cho ce, and w pe gently w th that.
Grill cloth
The gr ll cloth can be vacuumed d rectly w th a brush attachment.
Warnings
•Do not spray anything near the grill cloth. Any sort of cleaner or
water mist can harm the speakers if it gets through the grill
cloth.
•The grills cannot be removed. Any attempt to remove them will
cause irreparable harm.

Q U I C K S T A R T
9
6
Quick Start
elat ve to the pass ve vers on of the zA2.1, the nterest ng th ng about th s
model s obv ously ts bu lt n b ampl f cat on and s gnal process ng. The
ampl f er un t s shown below mounted nto the back of the speaker enclosure.
Connection. The two balanced XLR connectors are nterchangeable, although the
ntent s for the female one, .e., w thout p ns show ng, to be used as an nput, and the
male for da sy-cha n ng to other ampl f ers. Balanced cables are nherently very
transparent, and mmune to the effects of cable length, no se p ckup, and the full range
of mag cal qual t es are often ascr bed to s ngle ended (RCA) cables, wh ch s why
they’re used n the stud os that record and eng neer the mus c. You w ll generally do
R

S E T U P D E T A I L S
10
just as well w th a pa r of $20 m crophone cables from your local mus cal nstrument or
pro-aud o store (or Amazon) as w th someth ng fancy.
If your source has only RCA outputs, then you can get good results us ng your ex st ng
RCA cables w th an adapter. If you have told us you’ll be us ng RCA nterconnects, we
have suppl ed adapters for you to use. Aga n, a pro-aud o market product w ll do the
tr ck, and a good example s the Hosa Technology GXM133, ava lable from Amazon
or pretty much any mus cal nstrument or pro aud o shop for under $10 each.
Gain control. Ideally, for the very best s gnal to no se rat o, the ga n controls
should be set so that the speakers are go ng about as loud as they can when your
source level s set at max mum. Of course, there's always some uncerta nty about
what s "loud as they can," so rules of thumb are probably the best way to go,
namely:
•Ga n at max mum (+6 dB) when dr ven d rectly from a DAC, portable
player, or phone. (If you have mus c on your phone w th at least a 224
kbps rate, you'll be mpressed by how good t can sound on these
speakers.)
•Ga n at halfway up (0 dB) when dr ven from a preamp or server.
There are m ld detents n the control's operat on that w ll help you set them
equally.

S E T U P D E T A I L S
11
If you have a room s tuat on that tends to skew the mage to one s de, and no
balance control, you can use the ga n controls for balance adjustment.
Presets. The s gnal processor has four presets stored n t. To select from among
them, press the selector button. Each t me the button s pressed, the next preset
w ll be loaded. After #4 t w ll step back to #1. Each preset takes a few seconds to
load, so be pat ent between presses f you want to sk p any. The preset nd cator
w ll flash qu ckly unt l load ng s complete.
The standard presets are:
1. Flat response
2. Loudness compensat on for qu et l sten ng
3. Flat response dur ng extreme near f eld l sten ng, l ke one meter or one
yard away
4. Qu et l sten ng n the extreme near f eld
If you have requested spec al preset programm ng, these w ll be documented
elsewhere.
Status lights. The four status l ghts s gn fy the follow ng:
•Limit l ghts up wh le the DSP voltage l m ter s engag ng or the ampl f er
s cl pp ng. Voltage l m t ng s not mplemented because t s not requ red
to protect the dr vers.
•Temp shows when the ampl f er s overheated. I've never seen th s
happen, but f an ampl f er ever does shut down and go s lent wh le t
cools down, th s l ght w ll conf rm that the shutdown s not caused by a
catastroph c malfunct on, and w ll start work ng aga n shortly.
•Signal s for when the DSP s be ng programmed at the factory.
•Ready nd cates when the clock s runn ng, the DSP s loaded up, and the
ampl f er can start produc ng an output s gnal.

S E T U P D E T A I L S
12
Placement
At m d and h gh frequenc es, the zA2.1’s d rect v ty keeps the stereo mage from be ng
affected by room placement n all but the most reflect ve rooms. As w th any non-
d pole speakers, though, the bass s pract cally omn d rect onal, so nearby walls w ll
re nforce t.
A good starting setup:
•The speakers are acoust cal m rror mages of each other, and opt mal sound
occurs n the sweet area ( nboard) when so arranged. If your pa r does not have
the a rLayer opt on, the speaker w th the even ser al number should be placed
to the r ght, and the odd to the left. If they do have the opt on, no need to
check the ser al numbers, because the s de tweeter should be a med outward,
that s, not toward the center.
•Arrange nto an equ lateral tr angle setup, that s, an equal d stance between the
speakers and each other, and between each speaker and you. Of course, some
w ll prefer or be pract cally l m ted to a smaller angle between the speakers,
wh ch s perfectly f ne. It can be argued that an equ lateral tr angle setup s just
an art f ce cooked up n the early days of h -f n an attempt to standard ze
th ngs. In real ty, t makes l ttle d fference, other than the obv ous, namely
affect ng the stage w dth.

S E T U P D E T A I L S
13
•A m sl ghtly less toed n than d rectly at your l sten ng pos t on, so that the r
axes cross a foot or two beh nd you.
•Pos t on close to the front wall, w th the rearmost corner between 24 and 36
nches [60 to 80 cm] out. Correct prox m ty to the front wall can be very
mportant for bass reproduct on, because these speakers are des gned to rely
on wall re nforcement, but not too much or too l ttle. When the speakers are
also close to the s de walls, however, better bass m ght be had w th a b t more
d stance from the front wall. Also, changes to the d stance from the walls can
be used to decrease exc tat on of a problemat c room mode.
•Pos t on each a d fferent d stance from the s de walls as from the front wall, to
prevent overlap of the re nforcement spectra. For smoothest bass, the s de wall
d stances should be asymmetr cal, w th the pa r sh fted a foot or so to one s de,
and for the very best mag ng, symmetr cal, although the reduced wall splash
m n m zes the mag ng blur from an asymmetr cal setup.
•T lt back the r ght amount for fac ng upward d rectly at each of your shoulders.
They sh p set up for a l sten ng d stance of 2.5 to 4 meters [8 to 13 feet] at a 1
meter [39 nch] he ght.
•A rLayer at -12 dB to -10 dB.
•Preset1
Tips:
•Too much bass? Try mov ng the speakers away from walls, and part cularly out
of corners.
•Not enough bass? Try mov ng them closer to walls or corners or sett ng the
woofer sw tch to a h gher pos t on.
•Lumpy bass? Try mak ng the s de to s de pos t on asymmetr cal.
•Imag ng problems?
oIf your back wall s closer than about 10 feet [3 meters] beh nd you, try
add ng some absorpt on ( f your room s l vely) or d ffus on ( f you
room s already well damped) to that wall.
oIf your l sten ng seat has a h gh back, change to a seat w th a back that
does not come h gher than your shoulders.
oTry mov ng them farther from the front wall, wh le real z ng that the
trade-off w ll be less bass.
oExper ment the amount of back-t lt.
oAdd absorpt on or d ffus on at the s de wall f rst reflect on po nts.
oMake the s de to s de pos t on symmetr cal
•Upper treble response can be rolled off to taste by reduc ng toe- n.
•Exper ment ng w th the back-t lt can also ta lor the response, but w ll produce
changes that are more rad cal than from chang ng the toe- n; n part cular, a
severe m drange d p w ll be created when s gn f cantly off the deal t lt angle.

S E T U P D E T A I L S
14
Also, chang ng the back-t lt away from a stra ght-fac ng a m w ll degrade t me-
al gnment.
•The back t lt adjustment can be accompl shed by sh n ng a flashl ght from ear
he ght (chest he ght on older models) and watch ng for a reflect on from the
wood astr de the centers of the speakers. It can alternat vely be eyeballed by
tap ng one end of a p ece of str ng to the s de of each speaker and the other
end to someth ng at seated shoulder he ght and d stance, and t lt ng the speaker
to get what looks l ke a 90° angle at the speaker end. Tap ng a laser level to the
center of the s de of one speaker and mak ng the beam str ke the r ght he ght s
another way.
•When there s too much deep bass, and the only solut on s to dev ate from an
equ lateral tr angle to get the speakers away from s de walls, th s w ll obv ously
narrow the soundstage, but could be worth t.
•For record ngs made us ng a Blumle n m crophone arrangement, a 90° angle
between the speakers s best, although th s s hard to arrange n most rooms
w thout s tt ng very close to the speakers, wh ch not everyone w ll want to do,
and where the dr vers do not converge as well n t me. In many cases, a very
w de arrangement s just more enjoyable for the extra soundstage w dth, and
the mage s always cr sp enough to support th s w thout degrad ng focus.
•For the most holograph c effect, try two-m crophone record ngs, espec ally
b naural!

S E T U P D E T A I L S
15
F g 1. Our apolog es for th s appall ngly bad llustrat on.

C O N N E C T I N G A N D P O W E R I N G
16
7
Connecting and Powering
Binding Posts
The standard b nd ng posts accept spades or bare w re, but not banana plugs,
although they can be clamped nto the posts n a p nch, so to speak. We have
noth ng aga nst banana plugs, but came to apprec ate the des gn of the Cardas
Patented post assembly, w th ts handy, s ngle knob clamp ng mechan sm, sol d
copper posts, and rhod um plat ng. (Rhod um has the corros on res stance of gold,
but s much harder.) A proper connect on s well assured n all env ronments
w thout per od c t ghten ng.
We also offer 5-way posts on spec al order that w ll accept banana plugs.
Cables
We recommend 12 gauge, stranded, pure copper w re, well term nated to h gh
qual ty spade lugs for any length run up to 50 feet [15 meters]. Heav er w re can be
used, of course. Note that the res stance, nductance and capac tance of z p cord
of these gauges are at least ten t mes better than needed to avo d nfluence on the
sound.
We offer well-made cables at a reasonable pr ce. These are 12 gauge, heavy-
jacketed cables term nated to h gh grade connectors, made to last, and ava lable
w th a cho ce of several outer bra d colors. They are amaz ngly flex ble, as f from
a much l ghter gauge, due to the f neness of the strands and the suppleness of the
jacket ng. No other cable w ll produce better results w th our speakers.
Power Cords
The power cord s for the b as supply that charges the electrostat c panel
membrane. Note that the supply n each speaker draws ma ns current of only
0.008 to 0.08 Ampere, depend ng on the ma ns voltage. The supply c rcu t s
unrelated to the s gnal path. The speakers have no suscept b l ty to a rborne or
power l ne borne electr cal nterference.
There s consequently no benef t to us ng a spec al power cord.

S E T U P D E T A I L S
17
The b as supply w ll work correctly w th any ma ns voltage, and f the speakers are
moved nternat onally, su table power cords for any wall socket arrangement can
be obta ned worldw de and used w thout concern for convert ng/adapt ng the
voltage.
Powering
As mpl ed n the prev ous sect on, the speakers must be powered to obta n sound
from the electrostat c elements. You may note that there s an on/off power
sw tch. The speakers may be left powered on at all t mes w thout harm, but f they
w ll be left dle for an extended t me, or f the a r often conta ns smoke or other
contam nants, t s best to power them off.
The speakers can be powered on at any t me relat ve to the other equ pment.