Genesis 900 owners manual

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Page 1

SET-UP GUIDE
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Introductlon

While many companies have rushed to ﬁll the growing
home theater market with quick redesigns of existing
products, a few companies have taken their time to do it
right. Our goal in the design of both a high end music
and home theater product was to set a new standard of
performance for both music and video - a bend1mark
for the industry. After many years of designing, listening
and redesigning we believe that we have achieved our
goal in the Genesis 900 subwoofer.

Based on all new technology in both woofer design and
the servo controlled power ampliﬁer, the 900 is a musi-
cally accurate design in the tradition of all Genesis refer-
ence loudspeakers. So honest is this speakers perfor-
mance that the 900 is equally at home in the ﬁnest
music systems as in home theater applications.

The Genesis 900 is a totally self-contained unit. lnduded
is the woofer amplifier, an external remote controlled
package that handles virtually every function on the
woofer including power, volume, low pass, high pass and
phase. The Genesis 900 also has the ability to be linked
to another 900 woofer. In fact. the 900 can be linked to
as many 9005 as you wish. When linked together, the set-
tings you choose for one subwoofer will be followed by
all Genesis 900 subwoofers connected together.

The IS-ind1 woofer employed in the Genesis 900 sub-
woofer is a custom-designed and proprietary metal cone
design that exhibits great strength and rigidity with little
to no cone ﬂexure. The beneﬁts of low cone flexure
include extremely low levels of distortion and nearly zero
break up modes within the useable frequency band.

The heart of the Genesis 900 servo subwoofer system is
our exclusive, accelerometer-based motional feedback
servo system. ﬁrst introduced to high end audio in 1968
by Arnie Nudell in the legendary Inﬁnity Servo Statik One,
servo bass systems continue to represent the ultimate in
low frequency response today.

The concept of servo bass is an easy one to understand.
It employs, through the use of an accelerometer sensor,
active feedback which constantly monitors the perfor-
mance of the woofer and electronically compares it to
the input making instantaneous corrections

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Vlﬁthout this feedback loop the mass of the woofer is too
great to control properly and distortion occurs. Typical
non-servo woofer systems have distortion levels that
exceed 10% at even moderate levels. The Genesis servo
bass system reduces this distortion to below one percent
at almost any output level.

The servo controlled woofer ampliﬁer in the Genesis 900
is a unique design employing a new technology known
as BASH". Using this revolutionary technology, the
Genesis 900 woofer ampliﬁer is able to deliver a contin-
uos power of 500 watts rms into the woofer with peak
power of over 2200 watts ms for short periods of time.

Posftlonlng the 900 for Muslc

If your primary usage of the 900 is in a music system, we
recommend you follow this setup guide.

_Set the woofer or woofers approximately where you
want them in the room. We recommend that the
woofers be placed so they ﬁre into the long dimension of
the room. As measured from the wall behind the loud-
speakers, we suggest placing your Genesis 9005 about
IO% into the room. Example: if the length of the room is
twenty feet (7.75 meters) the 9005 should be about two
feet (0.6 meters) from the wall behind them although
excellent results can be obtained with the 900 directly
against the wall or near the corner.

We recommend that the 900 be placed behind and to
the outside of your main music speakers. If you only have
one Genesis 900 subwoofer, we recommend that you
place it on the right side. This is not a critical recommen-
dation and you may place the single subwoofer either on
the right or the left. We recommended the right (If there
is a dtoice) because it the side in an orchestra that the
bass instruments are typically located. In any case try to
avoid placing the subwoofer in the center of your rear
wall because this area will give you the lowest bass out-
put of anywhere in your room.

We suggest you toe in the woofers. This means that you
should angle the woofers towards the listener. Point them
directly at your listening position. This will help focus the
center image for the woofers higher frequencies.

Make sure you do not plug the woofer into a switched
outlet. Make sure the Genesis 900 is plugged into a wall
outlet that is always on. We recommend against the use
of an extension cord for the AC power. If you are forced
to use an extension cord, make certain it is as heavy a
gauge as possible. We recommend I4 to 16 gauge.

Page 2

Posltlonlng the 900 for Video

There are a number of possible positioning schemes for
video applications.

Our first recommendation is that you visit with the deal-
er you purchased your video sound system from and get
his or her advice.

Typically, in video applications, the front three speakers
Left, Center and Right (LCR) speakers are on stands, are
mounted to the wall or many times are the same speak-
ers used with your music system with the addition of the
center channel. Depending on the availability of space,
you may place a pair of Genesis 900's (or a single,
although a pair is highly recommended) in the front or
the back of the system. If you have a dual purpose ws-
tem, music and video, you might consider following the
music setup instructions ﬁrst (if space allows).

It is permissible to place one subwoofer in front and one
subwoofer in the rear to increase the "surround effect in
your video system if you wish.

The Genesis 900, in a video system environment, will typ-
ically be placed fairly close to the wall or in a corner. As
with the recommendations for the music system setup
try not to place the subwoofer in the middle of any wall.

After positioning your Genesis 900, connect to your pre-
amplifier, or power ampliﬁer.

Use a good quality interconnect cable to connect your
preampliﬁers output to the low level inputs on the back
of the subwoofer. You may use either balanced or single
ended connections (both are available on the Genesis
900). We strongly recommend that you do not use inter~
connects longer than to feet (3.2 meters) to connect the
preampliﬁer outputs to your Genesis 900 subwoofer. On
many preampliﬁers, use of an interconnect that is too
long will negatively affect the performance of your pre-
ampliﬁer because of the high capacitance of the cable
across the output of your preampliﬁer.

Connect the input of the woofer ampliﬁer to the output
of your preampliﬁer. Choose either balanced or unbal-
anced for inputs If your preamplifier has only one set of
balanced outputs and one set of unbalanced (RCA) type
outputs, choose your ﬁrst preference of connection for
the ampliﬁer that is driving your main speaker. Use the
remaining set of outputs to feed the subwoofer ampliﬁer.

If your preamplifier does not have two outputs, use a 'Y
connector to Split the signal. The Genesis servo sub-

woofer ampliﬁer presents a high impedance, very easy
load to your preampliﬁer and can easily be used with the
'Y' connector with no degradation to your main signal.

If you must employ a run of cable longer than 10 feet
(3.2 meters) we recommend that you use the Genesis
900's high level inputs

To connect the high level inputs of the Genesis 900 sub-
woofer, take the output of your power ampliﬁer and,
using a good quality speaker cable, connect to the bind-
ing posts on the badt of the Genesis 900 subwoofer. You
may also take the signal off of the back of your main
loudspeaker terminals if this is more convenient Using
the high level inputs to feed the Genesis 900 power
ampliﬁer will not degrade the sound quality of either
your main system or the Genesis 900 subwoofer. Make
sure that you maintain proper polarity. This means that
the plus (+) terminal of your amplifier must be connect-
ed to the plus (+ RED) terminal on the back of the
Genesis 900.

Hooking up only one subwoofer

If you are using only one subwoofer, connect both the
left and right low level or high level inputs into the one
Genesis 900 subwoofer. The Genesis 900 will automati-
cally create the appropriate mono signal.

Connect the remote control housing

The Genesis 900 subwoofer is fully remote controllable.
Functions sudt as volume, low pass, high pass, phase
and power are available. To operate the Genesis 900, you
must first connect the external remote control unit.

Using the included 6 pin connecting cable (similar to an
Svideo cable) hook up the remote control housing. On
the back of the housing there is the input connector.
Attach one end of the cable here. On the back of the
Genesis 900 subwoofer, there are two similar inputs in
the lower left hand corner of the ampliﬁer. One is
marked 'main" and the other is marked 'slave'. Plug into
the one marked "main'.

If you wish to use the link feature of the 900, you will
need to purchase another connecting cable from your
dealer. After procuring the cable, plug one end of the
cable into the remaining input marked "slave' and the
other end of the cable into the second Genesis 900 sub-
woofers input marked main'. You can daisy dtain as
many woofers as you wish in this manner.

Only the ﬁrst Genesis 900 subwoofer will have the
remote display enclosure.

At this point, you can turn on the woofer ampliﬁer. Using
the remote control, turn on the subwoofer ampliﬁer by
pointing the remote control at the small remote endo-
sure. Adjust the phase to 40 with the button marked
'phase' on the remote control. Next, adjust the low pass