Community MVP25 Руководство пользователя - Страница 8

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important. If the amplifier is not rated for the impedance load, the

internal protection circuitry of the amplifier may prevent full-power

output. Additionally, if the amplifier is not of high enough quality

or does not have good internal protection against over-load, the

amplifier may be damaged - or the speakers connected to the

amplifier may be damaged.

When you connect two speakers together so that both speakers work

off one amplifier channel, you are connecting them in parallel. Two

speakers connected in parallel do not have the same impedance as

one speaker. Knowing the combined impedance is very important

when selecting an amplifier. You need to select an amplifier that will

operate at the combined impedance and produce enough power for

both speakers. Check to make sure the amplifier you wish to use

will match this requirement. To figure out how much power you

need, just add the program power of the two speakers. The drawing

shows the combined impedance for two 8 ohm speakers connected

in parallel and their combined power requirements.

When the socket head screws of all four grille clamps have been

loosened, the grille may be removed. Hook the short arm of the key

through a grille perforation near a corner and pull that corner of the

grille up until the edge of the grille just clears the edge of the

cabinet. Repeat this with the other corner on the same side of the

grille. Once one side of the grille is free, the grille will spring back to

its natural flat shape. Use the key to lift the other edge of the grille

and remove the grille from the cabinet. Note: Be very careful when

handling the grille near the cone of the woofer. A corner of the grille

can very easily puncture the paper cone of the woofer.

GRILLE INSTALLATION

The socket head screws in the four grille clamps should

still be in their loosened condition, as they were left when the

grille was removed. Pull upward on the end of each grille

clamp to be sure it has returned to its natural unclamped

position. Slide one side of the grille down between the clamps

and the side of the cabinet until the edge of the grille rests on

the face of the cabinet.

Note: Occasionally one of the clamps will engage

the edge of the grille and prevent it from seating properly on the face. If this

occurs, insert the short arm of the key through the grille about ¾" (19 mm) to one

side of the clamp. Hook the short arm of the key under the end of the clamp and

pull it up. This will disengage the clamp from the grille and allow the grille to be

pushed down until it is seated on the face. (see drawing, next page)