Yamaha C 450 Panduan Pemilik - Halaman 7

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Caution for Speaker Connection

1. Turn off the POWER switch.

2. Remove the cover attachment screw(s) and remove

the protective cover from the speaker terminals.

3. After removing approx. 15 mm of insulation from the

ends of the speaker cables, bind the bare ends of the

speaker wires in the corresponding speaker terminals

and tighten the terminals to securely clamp the wires.

Refer to page 3 for speaker porality.

Shown actual size.

At this time make sure that the bare ends of the

speaker cables do not extend from the terminals in

such a way that they touch the chassis.

4. Reattach the protective cover over the speaker

terminals.

Screw

Wire should not

touch the chassis.

• Speaker fuse

The output capacity of your amplifier is very high:

460 W+460 W (8Ω) in stereo and 1240 W (8Ω) in

monaural on the C450; 340 W+340 W (8Ω) in stereo

and 880 W (8Ω) in monaural on the C320; 160

W+160 W (8Ω) in stereo and 400 W (8Ω) in monau-

ral on the C160. Be sure to use a speaker system that

has sufficient input capacity.

If the input capacity of your speaker system is lower

than the rated output of the power amplifier, you can

protect your speakers by connecting a fuse serially

between the speaker and amplifier as shown below.

Power amplifier

_ +

Use the following formula to determine the fuse

capacity according to the speaker's input capacity.

Po = I R → I = Po/R

P0 [W] : Speaker's continuous input capacity (noise

or RMS)

R [Ω] : Speaker's nominal impedance

I [A]

: Required fuse capacity

ex.) Speaker's continuous input capacity : 100 W

Speaker's impedance : 8Ω

I = 100/8

In this example, the required fuse capacity is calcu-

lated as 3.5 [A].

• Speaker cable

If you use a long speaker cable, use as thick a cable as

possible to prevent deterioration of the damping factor

or power loss inside the cable.

Speaker system

Fuse