Furman Sound PM-PRO E II 用户指南

F E A T U R E S

M-10

The M-10 power distributor is a convenient way 

to power your rack.  It provides 10 outlets on its 

rear panel and carries a 15 amp rating with a 

circuit breaker.

M-8

The M-8 power conditioner provides 9 switched 

outlets for powering equipment.  It not only  

protects anything plugged into it from spikes 

and surges, but also has a built in AC noise 

filter to rid the system of RFI / EMI interference.  

This allows equipment to function better and 

last longer.

 

M-8L 

In addition to features of the M-8, the M-8L 

features incandescent rack lights.  A dimmer 

control for the rack lights allows the user to 

adjust the level of illumination or simply switch 

the lights off.  The M-8L has a master switch for 

all outlets that glows red when the power is on. 

The front-panel circuit breaker can be quickly 

and easily reset should the unit be overloaded. 

The M-8L also features 5.5 feet of 14 gauge 

heavy-duty power cable. 

M-8D

In addition to all the features of the M-8 and 

M-8L, the M-8D offers a laboratory precision 

digital meter that displays incoming voltage in 1-

volt steps.  The voltmeter’s accuracy is ±2 volts.  

The M-8D has a master switch for all outlets 

that glows red when the power is on. The front-

panel circuit breaker can be quickly and easily 

reset should the unit be overloaded. The M-8D 

also features 5.5 feet of 14 gauge heavy-duty 

power cable. 

O P E R AT I O N

Retractable Rack Lights and Dimmer Control: 

The M-8L and M-8D utilize a dimmer control 

for the two retractable front panel light tubes. 

The dimmer knob controls the brightness 

of both light fixtures. Turn it clockwise to 

increase brightness; turn it counterclockwise 

to decrease brightness.  When the lights 

are not in use, we recommend turning the 

racklight’s switch to off to better maximize the 

life of the bulbs.

Digital Voltmeter:  (M-8D)

Furman’s digital voltmeter continually 

measures incoming voltages within a typical 

tolerance of +/-2VAC.  It should be noted 

that the voltage reading is incoming.  No 

adjustment should be necessary on these 

units. 

NOTE: The Merit Series units do not 

compensate for high or low line voltage. If 

you frequently move your rack to different 

locations, derive power from generators, use 

long extension cords, travel internationally, or 

are in an area prone to brownouts, you may 

benefit from the use of one of Furman’s AC 

Line Voltage Regulators.  

On/Off Rocker Switch: 

This 15 amp capacity power switch is 

specifically designed to stand up to the 

enormous high inrush current demands of 

many Power Amplifiers. Additionally, the semi-

transparent rocker lights when switched to the 

“ON” position.  

T R O U B L E S H O O T I N G    G U I D E

1.) Symptom: No power to the AC outlets.

Possible Cause: Circuit breaker has tripped 

due to excessive load.

Action Needed: Remove one piece of 

equipment from the Merit Series unit, and push 

the square re-set tab into the Circuit breaker 

bezel.

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2.) Symptom: No power to the AC outlets,

Possible Cause: Either the AC outlet to which 

your Merit Series device is connected has 

no AC voltage present, or the unit has been 

subjected to a sustained voltage in excess of 

400 Volts.

Action Needed: Plug the Merit Series unit into 

an AC receptacle where AC voltage is present.  

If the problem persists, the protection circuit 

may be damaged, and require factory service.

DEFINITIONS                              

SPIKE:  This is a pulse of energy on the 

power line. Spikes can have voltages as 

high as 6000 volts. Though they are usually 

of very short duration, the energy they 

contain can be considerable, enough to 

damage sensitive solid-state components 

in audio and computer equipment. Spikes 

can also foul switch contacts and degrade 

wiring insulation. They are an unavoidable 

component of electric power. They are caused 

unpredictably by electric motors switching 

on or off (on the premises or outside), utility 

company maintenance operations, lightning 

strikes and other factors. Spikes (also called 

surges or transients) are absorbed by special 

components in the Merit Series to provide safe 

voltage levels to protect your equipment.

RFI/EMI INTERFERENCE:  Noise from RFI 

(Radio Frequency Interference) or EMI (Electro 

Magnetic Interference) involves lower voltages 

and less energy than is found in spikes, but it is 

continuous rather than transient in nature. It is 

not likely to cause damage, but it can certainly 

be annoying, producing static in audio circuits, 

“snow” on video screens, or garbled data in 

computers. Noise can be introduced into AC 

lines by nearby radio transmitters, certain kinds 

of lighting, electric motors, and other sources. 

Because noise occurs at higher 

frequencies than the 50 or 60 Hz AC line, it can 

be effectively reduced through use of low-pass 

filtering.

ONE YEAR LIMITED 

WARRANTY

Furman Sound, Inc., having its principal place 

of business at 1997 South McDowell Blvd., 

Petaluma, CA 94954 (“Manufacturer”) warrants 

its Merit Series (the “Product”) as follows:

Manufacturer warrants to the original 

Purchaser of the Product that the Product 

sold hereunder will be free from defects in 

material and workmanship for a period of one 

year from the date of purchase. The Purchaser 

of the product is allowed fifteen days from 

the date of purchase to complete warranty 

registration by mail or on-line at the Furman 

website. If the Product does not conform to this 

Limited Warranty during the warranty period 

(as herein above specified), Purchaser shall 

notify Manufacturer in writing of the claimed 

defects. If the defects are of such type and 

nature as to be covered by this warranty, 

Manufacturer shall authorize Purchaser to 

return the Product to the Furman factory or to 

an authorized Furman repair location. Warranty 

claims should be accompanied by a copy of 

the original purchase invoice showing the 

purchase date; this is not necessary if the 

Warranty Registration was completed either via 

the mailed in warranty card or on-line website 

registration. Shipping charges to the Furman 

factory or to an authorized repair location must 

be prepaid by the Purchaser of the product. 

Manufacturer shall, at its own expense, furnish 

a replacement Product or, at Manufacturer’s 

option, repair the defective Product. Return 

shipping charges back to Purchaser will be 

paid by Manufacturer.

THE FOREGOING IS IN LIEU OF ALL OTHER 

WARRANTIES, EXPRESS OR 

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