Community MVP37 Manuale d'uso - Pagina 9

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GRILLE REMOVAL

The steel grilles on the MVP full-range systems are mounted with

four molded nylon grille clamps. These clamps are located on the

face of the cabinet, two just below the lower edge of the high

frequency horn, and two about 3" (about 8 cm) above the bottom

edge of the face. The clamps are operated by a socket head machine

screw that draws the upper portion of the clamp down toward the

face. As the clamp is drawn down its outer surface engages the

grille, forcing the grille down against the face and securely clamping

the grille against the edge of the cabinet.

Grille removal is easiest with the cabinet facing upward. To remove

the grille use the 1/8" (3mm) ball end hex key that was included in

the package with this manual. Insert the long arm of the key

through the grille perforation nearest to the socket head screw of the

grille clamp. Engage the key into the screw head and loosen the

screw five full turns. Repeat this procedure with the remaining

three grille clamps.

SIGNAL PRESENCE INDICATOR

There is a green light located on the front of the high frequency horn

that indicates that the signal is reaching the speaker cabinet.

THERMAL-LINK

HIGH FREQUENCY DRIVER

PROTECTION:

All of the MVP™ full-range systems (MVP25, 28, 35, 36, 37 and 38)

employ a unique thermally compensated protection system for the

high frequency compression driver. The Thermal-Link

system continuously monitors the temperature of the high

frequency driver and adjusts the threshold of protection mechanism

to compensate for the driver's temperature. Normally, when a

driver is operated at high power levels its temperature increases.

The longer it is operated at high power the hotter it becomes. When

a driver becomes hot, its power capacity is decreased, and the

threshold of the protection circuit needs to be lowered to prevent

driver damage.

The Thermal-Link

protection system does this automatically,

enabling the speaker system to operate at its maximum output

capacity with little risk of damage to the high frequency

compression driver. When the protection threshold of the Thermal-

Link

system is reached, the power to the high frequency driver is

reduced by 6 dB. The Thermal Link protection circuit does not

protect the woofer and does not affect the woofer output when

activated.

The Thermal-Link™ protection is solid-state and auto-resetting.

There are no mechanical relay contacts or light bulbs that can burn

out. When the power level to the high frequency driver is reduced

to a safe level, the Thermal-Link

itself and restore full power to the driver. The Thermal-Link

protection system is the subject of a current US patent application.

protection

system will automatically reset