OHM MicroWalsh Sat Omni User manual

MicroWalsh Sat Omni
Dimensions ` 6 x 6 x 27 in
Recommended Amplifier 35-125 watts
Impedance (typical) 4 Ω
Frequency Response 80 - 20,000 Hz
Sensitivity @2.8 Volts 85 dB
Recommended Distance up to 10 ft.
Congratulations! You are now the proud new owner of a pair of Ohm MicroWalsh Omnidirectional Satellites! This
speaker is specially designed to give you a spacious, enveloping feeling for surround effects in movies. Given the correct
placement, our design will make you feel like you’re right there, inside the film – more so than any other speaker on the
market.
Following are the simple instructions for installation. It will take some experimenting with room placement to optimize
the performance in your home. Do this at your leisure with a variety of music. No one set-up is best for all rooms and
music.
Connecting the loudspeakers:
The Ohm MicroWalsh Sat Omni is wall hanging loudspeaker equipped with gold plated binding posts on the back of
the cabinet. These terminals will accept any standard type of wire connector, including bare wire. Note the groove
routed in the top and bottom of the back of the cabinet (illustrated below). This is to allow you to run the wire to the
speaker either from above or below the speaker as it hangs flush to the wall, without crimping your wire.
Before connecting your loudspeakers, unplug your receiver/amplifier and make sure you have the right kind of wire.
We strongly recommend 12 AWG speaker wire.
Strip no more than ½” of insulation off both ends of the speaker wire with wire strippers, scissors, or a sharp knife .
By twirling the exposed ends between your thumb and forefinger, you can prevent stray strands of wire from shorting
out the terminals.
Leave lots of slack in the speaker wire until after you decide where the loudspeakers should be placed, so the
components can be moved around without straining the connections.
Note that one side of the speaker wire has a ridge or a printed stripe running its entire length, while the other side is
left unmarked. To assure in-phase operation, make sure to connect the marked side of the speaker wire with the red
(positive) terminal on the receiver on one end and the red binding post on the back of your MicroWalsh on the other
end. Then connect the unmarked side of the speaker wire to the negative (ground) terminal on your amplifier on one
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end and the black binding post of your MicroWalsh on the other. It is important that you follow this procedure exactly
for both loudspeakers, or else they will play out of phase.
Before plugging in your amplifier/receiver, be certain the power is turned off and the volume control is turned all the
way down. After plugging in and turning on the amplifier/receiver, slowly increase the volume until the desired level
is achieved. This procedure will prevent sudden power surges from damaging your loudspeakers.
Installing your loudspeakers in your listening room:
The MicroWalsh Sat Omni should be mounted on the wall or placed on a
table or shelf either significantly above or below ear level. This is important
to maintain the illusion that the sounds they reproduce are in the room with
you. Placing the driver too close to ear level will result in the undesirable
effect of perceiving the sound as coming from a discrete point in space. The
sound should bounce off of some surfaces in your room before reaching your
ears.
To mount the speaker on your wall using the provided hardware, screw the
wooden wedge that came with your installation kit into the wall with the side
that has the groove flush against the wall. If running speaker wire down from
the ceiling, this will allow you to feed the speaker wire down through the
groove before connecting it to your MicroWalsh (see above) for final
installation.
Although the speaker weighs only twelve pounds, for secure mounting we
recommend obtaining a wall anchoring system rated for twenty-five from
your local hardware store.
Now, hang the MicroWalsh with the Ohm logo facing out so that the point of
the wedge rests in the top of the cutout in the back of the speaker (illustrated
left). The difference in size between the wedge and the cutout should allow
you to make fine adjustments for horizontal placement at this time.
Caution!
Although your Ohm MicroWalshs have been rated to be used with amplifiers of up to 125 Watts per channel, it is
possible to damage your loudspeakers with smaller units. Heavily compressed music such as most kinds of rock,
dynamic peaks in classical music, accidentally dropping the tone arm onto the record, or connecting devices into a live
signal path can produce an inordinate amount of distorted power (as much as ten times the rated amount!) which is
fed directly to the loudspeaker, and could lead to permanent damage.
Warning!
DO NOT remove the perforated metal can that encases the driver. The design of the Ohm MicroWalsh incorporates
several critically placed transmission blocks. This acoustically transparent perforated metal can has been
permanently bonded to its housing to protect precise alignment and performance by these blocks. Removal or
damage of the can will seriously impair performance and void the warranty.
If you have any questions, give us a call!
Toll free: 800-783-1553
Outside the US call: 718-422-1111
Write to us at [email protected]
Good Listening!
John Strohbeen
President, Ohm Acoustics Corp.