Genesis I.C.E 12t User Manual
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Owners Manual and Set-up Guide:
Genesis Surround ServoSub™ 2/12t
Contents
A QUICK START SET-UP GUIDE 3
SAFETY TIPS 3
CONNECTIONS 3
PLACEMENT OF THE SUBWOOFER 4
ADJUSTING THE CONTROLS 4
SETTING-UP THE S2/12T 5
POSITIONING AND CONNECTING THE S2/12T 5
LFE GAIN 8
LFE OUTPUT 8
POWER 8
SPEAKER-LEVEL CONNECTIONS: HIGH LEVEL INPUTS 9
LINE-LEVEL CONNECTIONS 9
PHASE SWITCH 10
MAKING YOUR SYSTEM SOUND RIGHT 11
HE MAIN CONTROLS 12
T
T
UNING THE SYSTEM IN 12
OW BASS 13
L
TUNING FOR LOW FREQUENCY EFFECTS (LFE) 14
THE TECHNOLOGY 15
THE SERVO ADVANTAGE 15
500W CLASS-D SWITCHING AMPLIFIER 15
HE TRANSDUCERS 16
T
SPECIFICATIONS 17
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A Message from Genesis
Congratulations! You are now the owner of one of the finest subwoofers available for music and home theater systems.
The Genesis Surround ServoSub™ 2/12t is a unique subwoofer with
two 12” woofers that is designed for applications requiring corner or
sidewall placement, and is universally installation friendly. The unique
shape of the S2/12t makes it an ideal partner to surround or rear
loudspeakers in a multi-channel music or home theater system. The
S2/12t is ideal in multiple subwoofer installations where the distributed
bass of the system produces low bass that is more even, without
resonance peaks (nodes) and valleys (anti-nodes) of a single source.
The S2/12t delivers bass frequencies as intended by the musical
performer, or as intended by the movie director. This is what we call
absolute fidelity™. In this case, we mean that the bass response of
the speaker is completely faithful to the input signal. This is achieved
by servo control of the woofer cone.
The S2/12t plays as loudly and deeply as much larger sub-woofers
that cost much more, and outperforms them in terms of transient
fidelity and freedom from the colorations inherent in ported subwoofer
designs.
Robert Harley puts it best in his review of the Genesis subwoofers in
The Perfect Vision: “Transient impact was extraordinary; the dynamic
envelope of low-frequency sounds was tight, clean, and articulate…. In
addition, bass extension was outstanding; this woofer extended to
subterranean depths and maintained its composure.” He went on to
say, “It combines first-rate musicality and exceptional delicacy with a
bottom-end solidity and power that was fully up to the job of
reproducing today’s dynamic soundtracks.”
Please read through the Owners Manual and Set-up Guide to achieve
the maximum enjoyment from your purchase.
Please write the serial number and purchase details of your Genesis S2/12t
here for future reference.
Purchased at: _________________ Date: __________
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A Quick Start Set-up Guide
Now that you have your new Genesis Surround ServoSub 2/12t, we
realize that you are eager to hook it up and start listening!
Nevertheless, please read this quick start guide NOW before you
begin setting it up.
Safety Tips
The S2/12t is a powered subwoofer with a built-in amplifier: it needs to
be connected to a power socket that is always on. Make sure that you
are providing the correct voltage, and keep the S2/12t away from water
and direct heat.
Connections
There are two common options for hooking-up
the S2/12t to your existing system. For
dedicated music systems and bass extension
of surround speakers, connect the high-level
speaker binding posts on the S2/12t to your
amplifier’s speaker outputs, or connect them
to the “speaker through” binding posts on the
associated speaker, using a short run of
loudspeaker cable.
For traditional subwoofer use in audio/video
systems in multi-channel home theater
applications, connect the line level LFE output
of your processor to the LFE input on the
S2/12t
Our unique LFE Blend™ technology allows
you to use the S2/12t in BOTH your music
system and your home theater system at the
same time by using the high-level speaker
inputs to augment the bass response of your
surround speakers and connecting your
processor’s LFE output to the the LFE Input.
You are able to blend the two signals together
for better bass management of your listening room.
The S2/12t’s LFE out can be used to daisy-chain multiple Genesis
subwoofers together for better control of the bass modes in your
listening room. This makes bass management easier, and reduces the
chance of experiencing a boomy, inarticulate bass response.
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Placement of the Subwoofer
One of the most common reasons to buy a subwoofer is to augment
your existing loudspeakers when they do not provide enough bass for
your liking. In general, the S2/12t is used to augment surround or rear
channel speakers in a multi-channel system, and would be placed in a
room corner closest to the surround/rear channel that you are going to
augment. In this case, you should also connect the LFE input of the
S2/12t to the LFE/Subwoofer output of your processor (or daisychained from the nearest Genesis subwoofer with an LFE output).
Since the S2/12t has speaker-level inputs for left and right channels,
you can place a single sub against the back wall between the two rear
speakers of your multi-channel system. If you are using a 7.1-channel
system, the S2/12t’s dual inputs can also be connected so as to
augment both surround and rear channels.
If you are using only one S2/12t for just the LFE channel, place it in
one corner of the room. Try all available corners and pick the one that
sounds best. Note that corner placement of a subwoofer excites
EVERY bass mode in your room, the good, the bad, as well as the
ugly. In a very well designed room, this may be the ideal placement. In
a badly designed room, this could be a nightmare.
A useful excel spreadsheet can be found on the Stereophile Guide to
Home Theater’s website at www.guidetohometheater.com. “The
Sweet Spot” about 2/3 of the way down the page, has the spreadsheet
to check the acoustics of your room.
Adjusting the Controls
Locate the spec sheet for your existing main L/R loudspeakers, and
adjust the Low Pass frequency on the S2/12t so it matches the –3dB
point of your L/R speaker’s frequency response (If you can’t find that
the -3dB frequency, set the S2/12t to 63Hz – the 12 o’clock position on
the knob). For speakers of general sensitivity, the Bass Gain and LFE
Gain can also be set at the 12 o’clock position.
Note: Should your woofer amplifier unexpectedly turn off and you are
unable to turn it back on, you may have overheated or over-driven the
amplifier. It can take up to thirty minutes for the amplifier to turn back
on. Be patient. The two most common causes for this are poor
ventilation and too much amplifier gain (ie, the amp is being driven too
hard). If the amplifier is well ventilated and it still shuts down then you
may have the volume control turned up too high. Refer to the section
on increasing the low frequency response of your speakers without
turning up the volume control.
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Setting-up the S2/12t
While it is relatively easy to add a subwoofer into your system and hear
more bass, it is not as easy to integrate a subwoofer well into your
system. The Genesis ServoSub 2/12t makes system integration far
easier than most other subs because the servo system makes the
S2/12t’s bass quick, clean and articulate. This means that no matter
which main speakers you use, the S2/12t will integrate well with them;
even fast electrostatic or magnetic planar speakers.
Positioning and connecting the S2/12t
The S2/12t is uniquely designed to augment surround and rear
channels of home theater and multi-channel music systems:
One Surround Subwoofer
If you are using one S2/12t in a 5.1- or 7.1-channel system, try placing
the S2/12t in either rear corner, and also the center of the back wall
between the rear channels. Pick the location that gives you the
smoothest bass response throughout the room. When positioned in a
corner, the S2/12t will excite ALL bass modes in the room with equal
energy. This will generally give you the smoothest bass response in
the room unless your room has just a few very strong modes.
Connect the high level thru from one of the surround (rear) speakers to
one of the High Level Inputs of the S2/12t, and the thru from the other
surround (rear) speaker to the other S2/12t High Level Input. Connect
the LFE output of the surround processor to the LFE Input of the
S2/12t.
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Two Surround Subwoofers - 5.1 System
In a dual subwoofer 5.1-channel system, place one S2/12t in each
rear corner of the room, and connect the speaker-level inputs to the
nearest surround speaker thru connectors. Connect the LFE-input of
one S2/12t to the LFE/Subwoofer output of the processor, and its LFEoutput to the LFE-input of the other S2/12t. Several Genesis
loudspeakers and subwoofers can be daisy-chained in this manner.
Two Surround Subwoofers - 7.1 System
If you have a 7.1 system and two subwoofers, each S2/12t can be
used to augment BOTH the nearest surround as well as the rear
channel via the high-level inputs, as well as distribute LFE to both rear
corners of the room. Connect the high level thru from the surround
speaker to one set of high level inputs on the S2/12t and the high level
thru from the rear speaker to the other.
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