Genesis I.C.E 928 User Manual

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Owners Manual and Set-up Guide:

Genesis 928 Subwoofer

Contents

A QUICK START SET-UP GUIDE 3

SAFETY TIPS 3
CONNECTIONS 3
PLACEMENT OF THE SUBWOOFER 3
ADJUSTING THE CONTROLS 4

SETTING-UP THE G928 5

POSITIONING THE G928 FOR MUSIC 5
POSITIONING THE G928 FOR HOME THEATER 6

LFE INPUT 6
LFE GAIN 7
LFE OUTPUT 7

CONNECTING UP YOUR G928 7

POWER 7
SPEAKER-LEVEL CONNECTIONS 8
LINE-LEVEL CONNECTIONS 8

CONNECTING ONLY ONE SUBWOOFER 9

MAKING YOUR SYSTEM SOUND RIGHT 9

HE CONTROLS 9

T
TUNING THE SYSTEM IN 10
L

OW BASS 11

THE TECHNOLOGY 13

THE SERVO ADVANTAGE 13
500W C

LASS-D SWITCHING AMPLIFIER 13

THE TRANSDUCERS 14
T

HE CABINET 14

PECIFICATIONS 15

S

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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 928 delivers bass 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 is faithful to the event. It
plays as loudly and as deeply as sub-woofers from other brands

costing much more, and outperforms them in terms of the transient
fidelity and freedom from the colorations inherent in ported subs.

Filmmakers use bass to convey a wide range of emotions. Thus, bass
extension, dynamics, and solidity are vital to the home theater
experience.

Robert Harley puts it best in his review of the Genesis 928 subwoofer
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 this Owners Manual and Set-up Guide to get the
maximum enjoyment out of your purchase.

Please write the serial number and purchase details of your
Genesis 928 here for future reference.

Bought at: _________________________ Date: __________

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A Quick Start Set-up Guide

Now that you have your new Genesis 928 subwoofer, we realize that
you can’t wait to hook it up and start playing! Nevertheless, please
read this quick start guide NOW before you start setting it up.

Safety Tips

The G928 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 using the correct voltage, and keep it away from water and direct
heat.

Connections

There are two common options for hooking-up
the G928 to your existing system. For
dedicated music systems, connect the high­level speaker binding posts on the G928 to the
amplifier speaker outputs, or connect it to the
nearest loudspeaker, using a short run of
loudspeaker cable.

For audio/video systems in home theater
applications, connect the subwoofer to your
home theater processor’s subwoofer/ LFE
output using the LFE input.

Our unique LFE Blend™ technology allows
you to do both. Using the high-level speaker
inputs to augment the bass of your satellite

speakers, as well as use the LFE Input to
blend the two signals together for better bass management of your
listening room. This way, your G928 can be used BOTH for your
dedicated music system as well as your home theater system.

If you are lucky enough to have more than one G928, the LFE out can
be used to daisy-chain the subwoofers together to better control the
bass modes in your listening room. This makes bass management
easier, and reduces the chance of having boomy, inarticulate bass.

Placement of the Subwoofer

One of the most common reasons to buy a subwoofer is to augment
your existing loudspeakers when they are not giving you enough bass.
(You probably didn’t buy a pair of Genesis loudspeakers!) If you are

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using your G928 this way, place it just behind and to the outside of
your existing loudspeakers. (The right one if you have only one G928)

If you are using the G928 for a home theater LFE channel, place it
about one-third of the way in-between your main left and right
speakers.

Adjusting the Controls

For music, find the spec sheet of your existing main loudspeakers, and
adjust the Low Pass frequency to the –3dB point (if you can’t find that,
set it 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 will take up to thirty minutes for the amplifier to turn back
on. Be patient. The causes for this are poor ventilation and too much
volume. If the amplifier is well ventilated then you have the volume
control turned up to 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 G928

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 928 makes it easier than most other subs
because the servo system makes the G928’s bass quick, clean and
articulate. This means that no matter what main speakers you use, the
G928 will integrate well with them, even fast electrostatic or magnetic
planar speakers.

However, the most important component of your system that needs to
integrate well with your subwoofer is the room in which your subwoofer
plays.

Positioning the G928 for music

The first position that you can try is to place the G928 behind and to
the outside of your main music loudspeakers. We assume that you
have already found the best place in the room to position your main
speakers.

If you have only one G928 subwoofer, we recommend that you place it
on the right side. This is not a critical recommendation and you may
place the single subwoofer either on the right or the left. We
recommend the right (if there is a choice) because it’s the side in an
orchestra that the bass instruments are typically located. In most
cases, this will work quite well.

In some rooms, however, this may cause a boomy, thick, heavy bass
because the subwoofer is exciting the room modes too much. If this is
the case, then you will have to position the G928 in the spot in the
room where it will sound best.

A simple way to do this is as follows:

1. Put the subwoofer where the listening position will typically

be. If you can, raise it up to where the listener’s ears will
usually be.

2. Find a disc with an ascending and descending bass line.

This can be a piece of jazz music with a “walking” bass, or a
test disc with a frequency sweep such as the Cardas sweep
LP, or the Stereophile Test CD1.

3. Next, crawl around on the floor until you find the spot where

the bass sound smoothest, and each note is the about

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