Einstein THE PURE User manual

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THE PURE
3-way sealed box floorstanding reference loudspeaker
Einstein Audio Components GmbH Prinz- Regent- Str. 50-60 D - 44795 Bochum
Tel [phone] Fax [phone]
[e-mail] www.einstein-audio.de

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Dear EINSTEIN customer!
With the EINSTEIN The Pure, you have acquired that rarest of loudspeakers –one
that conforms to the most stringent standards. To get the most from it, please
take a few leisurely moments and peruse the following instructions.
The Pure is a loudspeaker that deliberately eschews frilly features to focus in-
stead on the core essentials:
Realistic reproduction with the utmost fidelity
Rock-solid reliability for years of worry-free service
Extended market value to protect your investment
The EINSTEIN The Pure does not sound beautiful, soft or energetic. Our goal is to
design devices that integrate into existing systems with the absolute minimum of
signal degradation or “artistic license“. A loudspeaker’s job is simple (though by
no means easy): make the signal from the source audible. Even the “world’s
best“ Hifi system cannot achieve the best musical performance if the loud-
speaker is not capable of delivering all the details and dynamics from the am-
plifier. Any fault of a speaker will limit the performance of the complete system.
Hence your decision to incorporate the EINSTEIN The Pure into your system was
a truly informed one. Congratulations.
We extend our regards from Bochum and wish you much musical satisfaction
from your new EINSTEIN The Pure.
Volker Bohlmeier

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Before you start to connect the EINSTEIN The Pure loudspeakers to your High End sys-
tem please read the set up instruction carefully to achieve the best possible sound
with your new High End loudspeaker.
If you feel too stressed to do the set up yourself, please ask your dealer for a profes-
sional set up.
1. Package content
EINSTEIN The Pure loudspeakers (pair) 4 boxes
EINSTEIN The Reference Stands (pair) 3 boxes
Manual
2. IMPORTANT! Unpacking your loudspeakers
Please allow your loudspeakers some time (app. 3-4 hours) to achieve room tem-
perature before playing music.
3. Set up EINSTEIN Reference Stands
Please start unpacking with the two base plates of the Reference Stands. Please
note that the spikes (decoupling the stands from the floor) are already mounted on
the base plate, so please take care not to hurt yourself or damage your floor. For
protection you can use the foam board of the packing. In this box you will find a
small package containing all the screws and tools necessary for the set up.
Second please unpack the first T-carrier and place it on one of the bases. Fix the 6
screws all loosely before tightening them to the base.
Unpack the first loudspeaker. Please get some help since each cabinet is quite
heavy (more than 30 kg or 62lbs!) and the front materials are quite delicate. Mount
screws in the four threaded holes on the back of the speaker. Insert the head of the
screws in the four upper holes of the T-carrier. Tighten the screws so that the cabinet
has a strong connection to the stand. Please make sure that the woofer cabinet
has no connection to the base plate of the stand but only to the T-carrier. You can
achieve this by putting a cardboard (you can take some of the packing material of
the packing of the base plates of the stands) under the woofer before you put it on
the stand. You can take it away after you have securely tightened the screws on
the back of the woofer to the T-carrier. Please also insure that there is a little gap
between the woofer and the midrange/tweeter cabinet. To achieve this you can
use the same cardboard putting this on top of the woofer before you place the
midrange/tweeter cabinet on top –same procedure as with the woofer.
Proceed in the same way with the second stand and the second speaker.
The Reference Stand is part of The Speaker because it is designed to match the
sonic performance of The Speaker. The 6 degree angle backwards, the high weight
and the rigidity of the stands, the tight connection of stand to speaker and the
massive cabinet of the speaker are part of the impressive musical performance of
the Speaker. The only moving part of the Speaker is the membrane of the drivers,
perfectly controlled by the amplifier.

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4. Set up and positioning of the speakers
The Einstein The Pure loudspeaker delivers breathtaking results from a listening dis-
tance of 2.0m up to 5.5m. Due to the rigid and sealed cabinet construction of a
40mm (16’’) multi layer plywood frame and 12mm (0.5’’) massive aluminum front
and back panel the cabinet is vibration-free. As a result, this loudspeaker can de-
liver almost unlimited dynamics even in larger rooms.
We took great care in terms of design to provide an easy handling of the speaker.
The speaker is an easy load (flat 8 Ohm design) for most amplifiers and can be dri-
ven nicely and effortless. A 6 watt single ended tube amplifier is just as suitable as
an 80 watt transistor amplifier.
The Pure has a perfect phase. This is noticeable when listening to the speaker. The
focus and a three-dimensional image are excellent. Bass is tight, fast and because
of the design with a perfect timing to midrange and heights. You will be surprised
how dynamic this little speaker can perform, even in the lower frequency range.
With The Speaker you have the advantage to be able to adjust the high frequency
level as well as the upper midrange perfectly to the room acoustics by means of a
high precision three position switch on the back of the speaker. The mid position
delivers a flat frequency response which is ideal for most listening rooms.
With the next position of the switch (clockwise) you achieve a slightly increased
high frequency/upper midrange level which can be helpful in more subdued rooms
which tend to absorb higher frequencies and thus sound a bit lifeless with
diminished dynamics (slightly muffled sound as if wearing ear muffs).
The third position of the switch (anti clockwise next to the mid position) can be
useful in acoustically bright rooms (with a lack of damping material creating a slight
echo effect (reverb) also when speaking). In this position the high frequency/upper
midrange will be slightly diminished.
Further to using the switch you can also affect the sound by choosing different
angles of your speakers. To achieve a flat frequency response and thus a coherent
sound image, turn the speakers 30 degrees inward. The angle is correct when you
see the inner side of the loudspeakers from your central listening position only as a
narrow line, so the front is aligned almost exactly to you. For a heavier subdued
room with smaller reflections, you can also angle the speakers slightly more so that
you cannot see either the inside or the outside of the loudspeakers, so the front is
aligned exactly to you. If your room is sensitive in terms of acoustic, it makes sense
to play around with the speaker position a little bit for the best results. This can also
cause the speakers to be not angled at all then you have a slight roll off in the
upper frequency range, which is advantageous in rooms with greater
reverberation. The character and dynamics of the loudspeaker are not affected by
this.
Due to the inert sealed cabinet, it is possible to place the speaker right in front of a
wall or even close to a corner. Please notice that you will achieve a more intense
bass and lower midrange level by doing this.

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5. Connection to the system
The speaker should be connected to the amplifier with a high quality cable. We
recommend our Einstein The Thunder speaker cable, but there are other good
cables.
You can use high quality banana plugs or high quality speaker spades.
Before switching on the system we recommend to double check that all plugs are
perfectly tight in the sockets.
6. Running In Time
Like any other component The Pure will improve during the first period of use. There
is no need for a special running in record or CD. While listening to music you will
realize how your loudspeaker will increase in sound quality.
If you prefer to ‘burn in’ the loudspeakers music with a high dynamic range will
serve best. Run in time for The Pure is around 100 hours and it has got a pre run in by
us for 8 hours.
7. Cleaning
The front of the EINSTEIN The Pure is made of polished stainless steel and acrylic.
Both materials are extremely delicate. Please make sure you use an suitable fabric
for cleaning with just a little window clean. We recommend the EINSTEIN Soft Cloth
or a similar fabric (i.e.for cleaning glasses). The cabinet itself is easy cleaning. A soft
damp cloth will do.
8. Warranty
EINSTEIN The Pure carries a 5-year parts & labor non-transferable warranty. For de-
tailed warranty conditions please contact your dealer or the distributor of your
country. If you have any further questions please feel free to contact info@einstein-
audio.de.
Basic Technical Information
Sensitivity 89 db@ 8 Ohm
Impedance flat 8 Ohm curve, min. impedance 7 Ohm
Crossover straight forward 6dB slope/octave, benign phase
Recommended Power 6 to 100 (and more) watts
Frequency Response 15 Hz 3/dB to 30 KHz
Drivers 10 active bass, 6 inch crossoverless midrange,
2.5 inch tweeter
Dimensions (HxWxD) 47.2x15.8x5.9 inch
49.2x15.8x15.8 inch including reference stands
Weight 132 lbs (each speaker)+ 66lbs (each stand)
Einstein Audio Components GmbH Prinz- Regent- Str. 50-60 D - 44795 Bochum
Tel [phone] Fax [phone]
[e-mail] www.einstein-audio.de

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CERTIFICATE
The Pure
3 way sealed box reference loudspeaker system
We herewith confirm that EINSTEIN The Pure
Serialnumber _______________________
have been developed and built in Bochum
Germany
Bochum,