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Owners Manual and Set-up Guide:
Genesis Reference Surround Loudspeaker
Contents
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2
A QUICK START SET-UP GUIDE
3
1.1
1.2
1.3
1.4
3
3
3
3
SETTING UP
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2.1
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5
5
5
6
2.2
2.3
3
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POSITIONING
LOUDSPEAKER CONTROLS
2.2.1 TWEETER CONTROL
2.2.2 MODE
TUNING THE SYSTEM
THE TECHNOLOGY USED
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3.1
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3.2
3.3
4
UNPACKING
PLACEMENT
CONNECTIONS
ADJUSTMENTS
THE TRANSDUCERS
3.1.1 THE GENESIS RIBBON TWEETER
3.1.2 TITANIUM MIDRANGE
3.1.3 ALUMINUM-CONE WOOFERS
CROSSOVER
VIBRATION-FREE CABINET
SPECIFICATIONS
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A Message from Genesis
Congratulations! You are now the owner of one of the finest
loudspeakers in the world. Based on technologies developed for
our flagship Genesis 1, the Genesis Reference Surround
Loudspeaker is designed for those of us who require the best
possible surround/rear/side loudspeaker for a reference-quality
home theater system.
The Reference Surround is designed to be used as a switchable
monopole or dipole surround speaker in a home theater set-up, or
in an audiophile multi-channel music system where it will be used in
monopole mode.
So that it will fit into the décor of any home, the cabinet design is a
combination of acoustic, furniture, interior design and architectural
principles. Being a Genesis absolute fidelity™ product, it is also a
perfect complement to any Genesis model, all the way up to the
flagship Genesis One.
Sound structural engineering principles have been applied to make
the Reference Surround cabinet rigid and well-damped. All
construction and even internal braces are made of 18mm MDF and
have been “tongue and grooved” to ensure that the cabinet is the
best environment on which to mount the transducers. This results in
extremely low cabinet coloration, and excellent sound-staging and
imaging. (Yes, the sound-stage is important even for rear
speakers!)
Please read this Owners Manual and Set-up Guide to get the
maximum enjoyment out of your purchase. Also, check out our
website at www.genesisloudspeakers.com for the latest updates,
tips & tricks and support for our owners.
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1 A Quick Start Set-up Guide
Now that you have your new Genesis Reference Surround
Loudspeaker, we realize that you can’t wait to hook it up and start
playing! However, please read this quick set-up guide (even if your
dealer is setting it up for you) before you proceed.
1.1 Unpacking
Your loudspeakers will come to you in a large shipping carton weighing
over 43lbs (20kgs). Use correct lifting techniques when moving the
speaker carton around or lifting the speaker out of its carton. We will not
be held liable for damage to either the speakers or your backs during
unpacking and setting up.
1.2 Placement
If you are hanging the speakers on the wall, you will need a qualified
installer to mount them on very strong brackets. The speakers weigh
nearly 40 pounds (18kgs) each, and can cause death or severe injury if
it falls on someone! We suggest that these speakers be professionally
installed. They may be mounted in the rear corners of the home theatre
room – where they act as both rear and side channels, or they may be
mounted on the side or back walls.
1.3 Connections
The speakers should be connected directly to the speaker-level output
of your power amplifiers using high quality speaker cables and the 5way binding posts.
The high-level thru-put binding posts on the speaker are for connecting
the Reference Surround to a subwoofer. We recommend the Genesis
ServoSub™ 2/12t as the perfect complement to this speaker. The
S2/12t is designed for corner or sidewall loading – making it the ideal
companion for a surround loudspeaker.
1.4 Adjustments
The Reference Surround has two knobs on the back – one sets the
tweeter level, and the other switches the speaker between dipole,
monopole, and remote-switchable operation modes. Set the tweeter
level to the 12 o’clock position and the mode to monopole as a start.
Once you familiarize yourself with its performance, putting a little bit of
additional effort into tuning the speaker properly for your system (which
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includes the room), will give you greater long-term enjoyment and
benefits.
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2 Setting up
2.1 Positioning
A good starting position is for the Reference Surround to be placed
horizontally about 48 inches from the floor and approximately 10
degrees behind the listener, and at the same distance from the listener
as the main L/C/R speakers.
Use a good quality stand that is solidly built and as rigid as possible, or
hang the speakers on extremely strong brackets on the wall. The
Genesis ServoSub™ 2/12t is a unique subwoofer that complements the
Reference Surround to turn it into a full-range absolute fidelity™ system.
On the home theatre processor, set the speaker to “LARGE” as the
Reference Surround will play to below 60Hz even without a subwoofer.
2.2 Loudspeaker Controls
The two knobs at the top of the plate on
the back of the speaker tailor the highfrequency response of the Reference
Surround and determines the mode of
operation.
2.2.1 Tweeter Control
The tweeter control is subtle with only a
± one dB range, but it can make a great difference in gaining that last bit
of additional performance in tuning your speakers for the system in
which you are using them. They can turn your system from very good to
exceptional, so take the time to work through this process.
The left knob marked TWEETER is a volume control for the front tweeter.
Turning this control clockwise will increase the level of the tweeters. Use
this control if you need a bit more treble, or to increase the apparent
space of the soundstage. Too high a tweeter level, and you can feel that
voices are too sibilant. With music, crashing cymbals are leaping out at
you, and nylon stringed guitars sound steely. Start with this control at the
12 o'clock position. There is about a ±1dB range for this control.
2.2.2 Mode
The Reference Surround is a monopole/dipole surround speaker.
When used primarily to reproduce movie sound effects, the speaker can
be used in dipole mode. When set as such, the speaker sounds
ephemeral and diffused. The Reference Surround incorporates a unique
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phase shifting crossover when used in dipole mode. In most surround
loudspeakers, bass is sacrificed when the speaker is switched to dipole
mode. In the Reference Surround, however, the crossover splits the
frequency at around 200Hz. The frequencies above 200Hz are inverted
in phase, while the frequencies below 200Hz are kept in phase. This
accounts for the phenomenal bass performance of this absolute fidelity
surround speaker.
For most music and even Dolby Digital™ and DTS™ use, we
recommend that you switch the speakers to monopole mode. We prefer
this even for movies because the rear and surround channels typically
produce more music and voices than sound effects even when watching
DVDs.
When set in remote switchable mode, a 12V signal applied to the inner
terminals at the bottom of the back-plate switches the speaker to dipole
mode. The default mode is monopole.
2.3 Tuning the system
The best way to tune your system is to use music to tune the front
left/right speakers. This way, you will have a system that will deliver
audiophile quality playback. Then, using a full-range pink noise signal
that can be generated by your player, processor, or a test disc, match
the surround and center channels to the front left/right reference.
The ear is a phenomenal measuring instrument. With a little practice, it
will be easy to distinguish subtle differences in sound. The easiest way
is to use a circular pink noise pan, like on the Chesky Ultimate Surround
Set-up and Test DVD-Audio disc. The pan should sound seamless on a
well set-up system.
Every listening room is different, and we recommend that you take the
time to carefully tune the system for the environment in which it is
placed. Due to room idiosyncrasies, do not be afraid to set the left and
right speakers to different levels.
Setting the tweeter level at the “12 o’clock” position is “normal” and will
be the position from which you can start tuning. With the controls in this
position, they may not sound perfect, but your Genesis loudspeakers will
sound great straight out of the box.
If you have any questions, feel free to contact us at Genesis. Our
website is the first place you can look to for more information, but you
are welcome to either send us an email, or just give us a call!
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3 The Technology used
3.1 The Transducers
The transducers in the 3-way Reference Surround are all proprietary
Genesis-designed drivers manufactured to our exacting standards:
3.1.1 The Genesis Ribbon Tweeter
Reviewers in the audiophile press have often remarked that the Genesis
circular ribbon tweeter is the world’s best. It is a one inch circular planar
ribbon design crafted from an extremely thin membrane of Kapton® with
a photo-etched aluminium “voice coil” that is a mere 0.0005 inch thick.
The entire radiating structure has less mass than the air in front of it!
That is why it will accurately reproduce frequencies beyond 36 kHz.
The result of this design is a driver that has a rapid and uniform
response to high frequencies and has the speed of the best
ribbon/electrostatic designs, without the high distortion and poor
dispersion that is typically associated with them.
The G6.1sr uses three of these tweeters per channel, one on each of
the front three faces. In monopole mode, only the front tweeter is
employed. In dipole mode, the front tweeter is switched off, and the
tweeters on the two side faces are turned on but out of phase to one
another.
3.1.2 Titanium Midrange
We sometimes say that the midrange is a window into the mind of a
composer or a singer. And indeed, the midrange is where the “magic” is
in a well-recorded musical event.
The Reference Surround uses a Genesis-designed proprietary 5 inch
titanium-coned midrange to cover this critical frequency spectrum.
Manufactured out of one of the lightest and stiffest materials known, this
low mass cone driver is one of the best midrange transducers ever
made, with nearly instantaneous transient response, enabling the
Reference Surround to sound lifelike and effortless.
The midrange is switched off in dipole mode.
3.1.3 Aluminum-cone Woofers
The Reference Surround incorporates two 6.5 inch metal cone woofers.
Made of a cone of solid aluminium, the suspension and voice-coil have
been maximized for long, distortion-free excursion so as to increase
dynamic range. Our aluminium cones are a magnitude stiffer than
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plastic or paper cones, and virtually eliminate the problems caused by
cone bending and break-up.
The woofers work in either monopole or dipole mode. When the
Reference Surround is switched to dipole mode, a unique phase shifting
crossover channels the midrange frequencies above 200Hz to these
woofers, running them out of phase.
The frequencies below 200Hz are kept in phase in order to maintain the
bass response of these speakers.
3.2 Crossover
The crossover is the brain of the loudspeaker. In order to manage and
maximize the performance of the extensive complement of transducers
used in Genesis loudspeakers, we spend more money on the crossover
than many other manufacturers put in their entire speaker even at the
same price range.
Each crossover is designed by computer modelling plus years of
knowledge and experience. The inductors are designed and made for
Genesis with OFC copper windings. The capacitors used are also
custom made for Genesis, using high-quality polypropylene-film and tinfoil. The crossovers in each Reference Surround weighs over seven
pounds (3.2kg)!
More importantly, the crossovers are designed with many, many hours
of music listening and constant refining, tuning and tweaking of the
circuit. Out of this comes the “magic” that is a Genesis-designed
loudspeaker system. For example, by going the more expensive route
of using several smaller capacitors in parallel instead of a single large
one, transparency and musicality were improved.
The Reference Surround actually employs three totally separate
crossovers. This accounts in part for its absolute fidelity performance. In
monopole mode, a single 3-way crossover powers the front tweeter,
midrange, and two woofers.
When set in dipole mode, two crossovers are used. One drives one face
of the speaker with a tweeter and woofer. The other is a unique phaseshifting crossover that splits the frequency range at approximately
200Hz. The frequencies above this are driven out of phase to the other
face, creating the dipole effect. The frequencies below 200Hz are in
phase to the other face in order to maintain the bass performance.
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3.3 Vibration-free Cabinet
The cabinet was designed for aesthetics, but with an obsession to sonic
quality, vibration control, structural strength and rigidity.
In some parts of the cabinet where vibration would have been the
greatest, 1½ inches (36mm) of multi-layer bonded MDF was used to
provide damping, structural integrity and a rigid platform for the drivers to
be located. Extensive bracing was carefully incorporated using 12mm
slabs of MDF to eliminate cabinet flex and panel resonance.
Incidentally, MDF was chosen as the material of choice for its damping
properties and its consistency in hardness, density and rigidity. It would
actually have been cheaper and easier to make the cabinet of solid
wood, but that would have been a compromise.
Genesis designed a unique tongue
and groove joint in order to improve
the structural rigidity of the cabinet.
Crystalline glue the dissolves into the
mdf was chosen to ensure that the
interfaces between two panel pieces
becomes as one. This results in the
entire enclosure behaving as a single
unit, with seemingly no discontinuity in
material.
This results in a joint so strong that
when you try to rip the joint apart, it
isn’t the joint that would break. The
mdf would break apart first.
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4 Specifications
Frequency Response:
55Hz to 36kHz, ± 3dB
Sensitivity:
89 dB, 1 watt 1 meter
Min/Max Power (Tube):
75/500 watts per side
Min/Max Power (Solid State):
100/1000 watts per side
Input Impedance:
4 ohms (Nominal)
HF Transducers:
Three Genesis 1” Circular Ribbon
Tweeters (front and two side)
Midrange Transducers:
One Genesis 5” titanium cone
midrange
LF Transducers:
Two Genesis 6.5” aluminium
cone
Controls:
Tweeter level
Monopole/Dipole/Remote Mode
Inputs:
High-level with 5-way binding posts
12v trigger for remote operation
Throughputs:
High-level with 5-way binding posts
Dimensions:
H 14½ “ x W 20½” x D 12”
Weight:
38.5 lbs (17.5kg) per side
Finishes:
Standard Satin Black
High Gloss Automotive
(grey and silver)
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