Inter-m QD-4960 Manuel d'utilisateur télécharger pdf (Page 15)

QUAD AMPLIFIER

QD-4240/4480/4960, QX-4960

Use the following formula to determine the needed fuse rating:

Po = I 2 R

I =

P0 [W]: Speaker’s input capacity (RMS)

R [Ω] : Speaker’s nominal impedance

I [A] : Required fuse rating

For example: If the speaker’s input capacity is 100W, with 8Ω impedance.

I = = 3.5

The required fuse rating is 3.5A.

- SPEAKER CABLE

Always use the heaviest-duty (lowest gauge) speaker cable available. The terminals can accommodate very

thick speaker cable.

- MAINTAINING PROPER POLARITY

It is very important to wire your speaker connectors consistently at each end of each cable, in order to

maintain proper polarity. All quality cables are manufactured with clear markings to identify the different

conductors – normally by color-coding, printed markings, or textured ribbing on the cable’s jacket material.

Always make certain to correctly wire your connections so that tip is connected to tip, and sleeve to sleeve.

Failing to do so will cause your speakers to operate out of phase, resulting in significantly reduced low-

frequency output from your system.

- RACK MOUNTING YOUR AMPLIFIER

The QD-4240/4480/4960, QX-4960 intakes cool air through the front panel and exhausts warm air

through the rear panel. When mounting in a portable equipment rack, maintain adequate ventilation by

making certain the front and rear panels are not obstructed.

100

PUSH PUSH

CHANNEL 1

CHANNEL 2

OUTPUT

CHANNEL 4

INPUT

CHANNEL 3

PUSH TO RESET

10A / 250V

BRIDGEBRIDGE

CH 2(4Ω ~ 8Ω)CH 4(4Ω ~ 8Ω)

CH 1(4Ω ~ 8Ω)CH 3(4Ω ~ 8Ω)

(8~16

) (8~16

)

X-OVER 10

X-OVER

BYPASS

STEREO

BRIDGE

PARALLEL

X-OVER 10

X-OVER

BYPASS

STEREO

BRIDGE

PARALLEL

X-OVER FREQUENCY X-OVER FREQUENCY

BALANCED

OdBm

BALANCED

OdBm

BALANCED

OdBm

BALANCED

OdBm

60Hz

130

190

220

160

250Hz

60Hz

130

190

220

160

250Hz

AC INPUT

230V 50Hz, 770W

HIGH HIGH

LOW LOW

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Inter-m QD-4960 Manuel d'utilisateur Page 15

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