ATI Technologies AT7012 Owner's Manual - Page 7

Browse online or download pdf Owner's Manual for Amplifier ATI Technologies AT7012. ATI Technologies AT7012 14 pages. 12 & 16 channel multizone distribution power amplifiers

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Connecting Your Amplifier

When making connections between any source compo-

nents and the amplifier, or when making connections to

any speaker, be certain that both the input devices and

the amplifier are turned off. To assure that there will be

no unwanted signal transients that can damage equip-

ment or speakers, it is always best to unplug all equip-

ment before making any connections.

Input Connections

Connecting the amplifier to your source equipment is

simple. Using high-quality audio interconnect cables,

match the output channel designations on the rear of

your source equipment to the input jacks on the rear

panel of your amplifier that have the same channel

name. The AT7000 amplifiers have Zone and Bus RCA

input connections on the rear panel. Use the toggle

switch to the right of each pair of RCA jack to select

the desired input for each channel. When making con-

nections with RCA type plugs on interconnect cables,

make certain to gently, but firmly, insert the plug into

the jack. Loose connections can cause intermittent

sound and may damage your speakers. Some quality

RCA plugs may be very tight, and it is important to

assure a proper connection between the interconnection

cable and the input jack.

Speaker Connections

To assure that the high quality signals produced by

your amplifier are carried to your speakers without loss

of clarity or resolution, we recommend that you use

high quality speaker wire. Many brands of wire are

available; the choice may be influenced by the distance

between your speakers and the amplifier, the type of

speakers you use, personal preferences, or other factors.

Regardless of the brand or type of speaker wire select-

ed, we recommend that you use a wire constructed of

fine, multi-strand copper with a gauge of 14 or lower.

In specifying wire, the lower the number, the thicker

the cable. Wire with a gauge of 16 may be used for

short runs of less than twenty feet. We do not recom-

mend that you use any wires with an AWG equivalent

of 18 or higher due to the power loss and degradation

in performance that will occur.

To connect the amplifier to your speakers, a pair of

"Phoenix" Style terminals is provided for each channel

output. These terminals will accept bare wire up to 8

AWG and handle up to 32 Amps of current. Strip ap-

proximately 1/2 inch of insulation from the end of each

wire and carefully twist the strands of each conductor

together. Be careful not to cut the individual strands or

twist them off. All strands must be used for optimal

performance. Insert the bare wire into the terminal

block and tighten the screw.

AT7000 Manual

Correct polarity of connections are important to main-

tain proper speaker phasing. When speaker phasing is

correct, all speakers move in and out at the same time,

preserving the imaging of the program material. Out-of

-phase connections mean that some speaker cones will

be moving in, while others move out. This will cause

indistinct or confused imaging, and muddled and

cloudy sounds. To avoid incorrect phasing or polarity,

be certain to use wire that has distinct markings, colors,

stripes, wording, or grooves on each side of the speaker

cable. When making connections to the amp and speak-

ers, adhere to a consistent pattern of using one side of

the wire to the red terminals and the other side to the

black terminals. When using cable with markings on

one side only, traditional convention is to consider the

marked side of the wire as the red, or positive (+) con-

nection, and the non-marked side as the black or nega-

tive (–) connection.

Run the cables to the speaker locations. Do not coil any

excess cable, as this may become an inductor that cre-

ates frequency response variations in your system. Fi-

nally, connect the wires to the speakers, again being

certain to observe proper polarity. Remember to con-

nect your negative, or black wire, to the matching ter-

minal on the speaker. The positive, or red wire, should

be connected to the matching terminal on the speaker.

NOTE: While most speaker manufacturers adhere to an in-

dustry convention of using red terminals for positive connec-

tions and black terminals for negative, some manufacturers

may vary from this configuration. To assure proper phase

connections, and optimal performance, consult the identifi-

cation plate on your speaker terminals, or the speaker's

manual to verify polarity. If you do not know the polarity of

your speaker, consult the speaker's manufacturer for further

information.

Power Control Connections

Your amplifier features a built-in remote turn-on sys-

tem that will automatically switch the amplifier on

when another device in the system is switched on.

Remote Turn-On Using Products

Equipped With a Low Voltage Trigger Jack

Press the front panel power switch on the amplifier so

that it is in the ON position. Then, using an accessory

cable with a 3.5mm mono mini-plug on each end, con-

nect the trigger-output jack on the rear of the source

device to the trigger input jack on the back panel of the

amplifier. When these connections are made, the ampli-

fier will automatically turn on and off with the trigger-

ing device. The trigger is compatible with a 3 - 24 VDC

steady state signal.

Remote Turn-On

Using External AC to DC Power Converter

If your source device does not have a dedicated trigger

Rev-11/19