Nht ST4 Instrukcja Użytkownika Pobierz pdf (Strona 4)

Prepare the wires by stripping 1/4" to 3/8" of insulation

from the ends and, if the wire is stranded rather than

solid, tightly twisting the exposed wire strands.

Finally, connect your speaker to your amplifier or

receiver, connecting the conductors "in-phase;" that is,

the same half of the wire-pair to the positive / red ampli-

fier terminal and the positive /red speaker terminal.

Similarly, connect black output and input. If you have

trouble following which wire half is which, look closely,

and you'll see that your speaker wires have some sort of

marking -- lettering, ridges, or color difference -- to help.

Before powering up your amplifier or receiver, separate

different kinds of cables to minimize noise. Keep

speaker wires at the maximum practical distance from

line-level, digital, and power cables, and if they must

cross, keep them at right angles.

Bi-amplification

On the back panel of the ST4 you'll find two sets of

binding posts (fig. 4) and a metal jumper strap

connecting them. These provide a different way to

connect the ST4's to your system, namely, bi-amplifying.

Bi-amplification is the use of two amplifiers, one to power

the bass driver and a separate one to power the

midrange / high frequency drivers. Why bi-amplify?

Because this configuration provides greater dynamic

range, since each of the two amplifiers is spared the task

of reproducing the entire frequency range. And in home

theater systems, bi-amplifying turns the passive

subwoofer section of the ST4 into a powered subwoofer.

The most important factor in bi-amplifying is making sure

that identical line-level audio signals -- ie, signals

matched in tone and level -- both reach the two amplifiers

and, after amplification, reach the ST4's. This involves

three steps.

1) Sending identical audio signals to your amplifiers:

Check whether your preamplifier or system controller

offers multiple sets of line-level output jacks. If so,

simply lead two sets of connectors to your two amplifiers.

When your pre-amplifying component offers only one

If you have hardwood or other soft floors, which the

spikes might scratch or pierce, you may prefer to use the

rubber feet included in the SpikeKit. To do so, simply

peel the adhesive backings from the rubber feet and

place them over the spike holes on the stabilizer bars.

Connections

Before connecting your ST4 loudspeakers to your

system, turn off the power to your amplifier / receiver to

avoid damaging the components or the speaker.

First, please take a look at the five-way binding posts on

the back of your speaker. They accept raw wire, banana

plugs or spade plugs. They should always be tightened

by hand, since pliers can strip or break them.

You'll notice that there are two sets of binding posts: a

top set and a bottom set, joined by a metal jumper strap.

For a normally-amplified connection, simply connect the

speaker wires to either the top set or bottom set of bind-

ing posts; it doesn't matter which, since the jumper straps

will carry the audio signal to the other set. Only remove

the strap if you're bi-amplifying (fig. 4).

Next, choose your speaker wires. Like all wires,

speaker wires are rated by a gauge number representing

how many fit in an inch-thick tube, so the numbers get-

ting smaller as the wire gets thicker. Thicker wires

transmit more signal easily; we recommend 14-gauge for

shorter runs, and thicker for runs longer than ten feet

(your authorized NHT dealer can help with wire). Equal

lengths of wire for all speakers is ideal, but not

absolutely necessary.

ig. 4

Fig. 4

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