Magnet Pr-9r User manual

PR-9R

Remote Control Line Amplifier

Important

The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user

to the presence of uninsulated “dangerous voltage” within the product's enclosure that may be

of sufficient magnitude to constitute a risk of electric shock to persons

CAUTION:

TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-

SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

The exclamation point within an equilateral triangle is intended to alert the user to the

presence of important operating and maintenance (servicing) instructions in the literature

accompanying the appliance.

W

ARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT OPEN OR EXPOSE THIS APPLIANCE

TO RAIN OR MOISTURE.

(FOR CANADIAN MODEL)

CAUTION: TO PREVENT ELECTRIC SHOCK DO NOT USE THE PROVIDED AC PLUG WITH AN

EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY

INSERTED TO PREVENT BLADE EXPOSURE.

AVIS: RISQUE DE CHOC ELECTIQUE. NE PAS OUVRIR

A

TTENTION: POUR PREVENIER LES CHOCS ELECTRIQUES NE PAS UTILISER CETTE FICHE

POLARISEE AVEC UN PORLONGGATUER, UNE PRISE DE COURANT OU UNE AUTRE SORTIE DE

COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSES AUCUNE

PARTIE A DECOUVERT.

Precautions

Before proceeding with the installation, please read the instructions carefully to avoid

damage during operation. If you have any problems, do not hesitate to contact our

Sales or Service Department.

1. All warnings on the unit and in the operation manual should be adhered to.

2. This unit should not be used near water or in humid condition,

3. Do not touch any parts inside the machine in order to avoid electric shock.

4. The operating temperature range is +5 ∼+35 °C. Operating humidity is 5% to

80%. Do not operate the unit when the temperatures and/or humidity are

outside of this range.

5. Before connecting or disconnecting any cables, always turn off your equipment.

6. Before turning the power ON/OFF, turn your volume control to the lowest output

level.

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Table of Contents

- Important 2

- Precautions 3

-Introduction 6

- Packing/Unpacking 7

- Placement Considerations 8

-Functions 9

-Connections 10

-RemoteControl 12

- Troubleshooting guide 13

-Care&Maintenance 14

- Warranty information 15

- Specifications 16

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Introduction

Thank You for purchasing the Magnet PR-9R. The PR-9R is a Solid State Line Pre-

amplifier, representing Magnet’s goal of merging technology and convenience into one

product. The full functions remote control let you comfortably control your stereo

from your favorite listening chair and just enjoy your music. The PR-9R has been

carefully designed, manufactured and tested to ensure our product’s high quality and

reliability. You will never be disappointed with Magnet.

The PR-9R

The PR-9R is a series of precise and well designed circuits. With separated JFET

Folded Cascade Differential Input, each channel has its own entire DC servo

controlling a directed couple output circuit. The PR-9R creates a clear, warm and vivid

midrange. Bass sound is tight and fast. With an accurate frequency response of less

than +/- 0.1dB from 20-20,000 Hz and THD+NOISE of less than 0.0025 %, the

PR9R specifications show how precisely the PR-9R can reproduce your music. You

can be sure every sound you hear is an accurate reproduction of the original

performance.

The PR-9R emphasizes on the line level pre-amplifier design and making it more

suitable for today’s digital stereo system. The PR-9R has 7 signal inputs and 2

outputs. The 2 pre-outputs make it capable of connecting with 2 power-amplifiers at

the same time. The ON/OFF power switch and remote control circuit are independent

and separate from the audio signal, maintaining the purity of the signal path. The PR-

9R remote control can accurately adjust the volume without compromising

conveniences. We use Alps’s highest grade motor driven parts for selector, volume

and balance units.

All components and accessories are audiophile grade and many are specifically

designed for high-end audio. The double sided PCB allows us to include a full surface

ground plane to reduce stray capacitance and inductive-coupling to reduce the

interference of RF signals.

1% tolerance metal film resistors, Wima capacitors, Wonder Cap, gold plated RCA

jacks, 6mm aluminum anodized faceplate and full aluminum chassis are just a few

features for those of you who are looking for a quality Hi-end product. This is a

product that you can be sure of sound quality, high valued, and durability for many

years to come.

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Packing/Unpacking

1. Carefully lift the unit out of the box.

2. Remove the foam packing material.

3. Set up the unit for use.

REMEMBER: Keep all the original packing in case it is necessary to return the unit

for servicing.

WARNING: PEOPLE WITH BACK PROBLEMS SHOULD NOT UNPACK THIS

EQUIPMENT WITHOUT ASSISTANCE.

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Placement Considerations

1. In a place subject to direct sunlight.

2. In a humid place.

3. In an extremely hot or cold place.

4. In a place subject to vibrations.

5. In a dusty place.

6. In a poorly ventilated place.

DO NOT INSTALL THE UNIT IN THE FOLLOWING LOCATION:

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Functions

1.POWER Pressing the POWER button once on the front panel or the remote

control will turn the machine on. The LED on the front panel will light up

when the machine in ON. The PR-9R will remain in mute for approximately

10 sec after turning on to allow for component stabilization. The power

LED will be dimly lit while the machine is on MUTE. The LED will be fully

lit when the machine is out of mute and ready to play.

Press POWER again to turn the machine OFF. The LED will fade off when

the power is off.

Remark The PR-9R has an on-off digital control signal (REMOTE) to turn

the power amplifier ON/OFF with the pre-amplifier.

2.TAPE Press the Tape switch once to select TAPE input as the source. The

green LED will lit while in TAPE mode. Press TAPE once more to

un-selected TAPE mode.

3.CD/TUNER/LASER/VIDEO/LINE1/LINE2

Turn the select knob to your desired source input.

4.BALANCE Turning the balance level will lower your output level left/right. Leaving it

in the center will give you equal output on both channels. Sometimes in

unequal source recording, you may need to adjust the balance level to

get a balanced stereo image.

5.VOLUME Adjust the output level.

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Connections

INPUTS The PR-9R has a total of 7 line level inputs.

1. CD Receives signals from a Compact Disc player.

2. TUNER Receives signals from a Tuner.

3. LASER Receives signals from a Laser Disc player.

4. VIDEO Receives signals from a VCR audio outputs.

5. LINE1 receives the signal from input line level.

6. LINE2 receives the signal from input line level.

7. TAPE Receives signals from a cassette tape player.

REC (Recording output monitor) The PR-9R has 2 recording monitor output for

duplicating.

8. VIDEO (REC) Send output signal from selected program source to VCR audio

input. To record from the program source onto Video tape,

turn the selector switch to the source program you wish to

record and press record on the VCR player.

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If the program source is from a VCR, then there is no output at REC (Video)

because the VCR Player cannot play and record at the same time. Video source

can only be recorded to a cassette tape player.

Some audiophiles believe that the higher bandwidth of the VCR tape will

reproduce higher quality audio signal than the conventional cassette tape.

9. TAPE (REC) Send output signal from selected program source to Cassette

tape input. To record from the program source onto Cassette

tape, turn the selector switch to the source program you wish to

record and press record on the cassette tape player.

OUTPUTS The PR-9R have 2 outputs for connection to power-amplifier.

10. OUTPUT 2 Sends signals to power-amplifier (use in bi-amp application).

11. OUTPUT1 Sends signals to power-amplifier

12. REMOTE This is a digital control signal designed to use as remote control

signal to other Magnet power-amplifier with remote turn on

capabilities. With this function, your power-amplifier can be

power ON/OFF with your PR-9R POWER switch.

Connect the cable supplied with the PR-9R into this jack and connect the other

end to Magnet power-amplifier with remote turn on capabilities.

13. AC POWER Connect the PR-9R to an AC power source only of the type

describe in these operating instruction or as marked on the rear

panel of the unit.

We recommend plugging the cord's outlet end into a grounded 3 hole wall outlet.

Please make sure to have the proper power voltage rating to match with your

PR-9R.

Connect power to your PR-9 with a CE or UL certified power cable only.

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Remote Control

1. POWER press to turn on/off

2. MUTE press once for mute, press again to resume sound.

3. CD/TUNER/LASER/VIDEO/LINE 1/LINE 2/TAPE

Press to select program source.

4. L BALANCE RPress L then the BALANCE knob will turn left, press R the knob

will go right.

5. + VOL - Press + to increase the output level, press - to decrease the

output level.

SUGGESTIONS AND WARNINGS IN USING REMOTE CONTROL

A. When you change the battery always make sure that the battery is of the same

type. For example, if the battery is Alkaline then both batteries should be

Alkaline also.

B. Do not use old battery mix with new battery.

C. When left unused for a long period of time, take the battery out.

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Troubleshooting Guide

If the unit does not function properly please follow the instructions below.

If the problem still occurs, please contact our service department.

Problem Solution

1. Unit does not turn on. The LED is

not lit.

2. No sound.

3. No sound from one speaker.

4. Low bass sound.

Make sure that the power cord is

plugged in properly.

Check whether or not the fuse is

functional

Check the speaker cable connection.

Check the interconnect cable connection.

Check the MUTE switch.

Check the speaker or interconnect cable

connections.

Check the BALANCE control on the

preamplifier, make sure that It is in the

middle position.

Check the speaker cables for correct

phase connection.

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Care & Maintenance

Use a soft, dry cloth to remove dust from the cabinet. For stubborn dirt, soak the

cloth in a mild detergent solution. Be sure to wring the cloth well before wiping the

unit. Use a dry cloth to wipe it dry. Do not use any volatile agents such as benzine

or thinner. They may damage the surface of the cabinet.

CAUTION: DISCONNECT YOUR ENTIRE SYSTEM FROM THE AC MAINS

BEFORE CLEANING. NEVER APPLY LIQUID CLEANSERS DIRECTLY TO THE

UNIT. IT MAY RESULT IN DAMAGE TO THE ELECTRONIC COMPONENTS

W

ITHIN THE UNIT

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Warranty information

1. MAGNET Technology Corporation (hereinafter referred to as MAGNET) warrants

to the original retail purchaser only that its product is free from defects in

material and workmanship under normal use, and authorizes free service and/or

parts exchange at any MAGNET Authorized Service Station only, for a period of

ONE year from the date of purchase.

2. The warranty is subjected to the following conditions and limitations. The

warranty is void: if product has been used other than in accordance with the

instruction in the owner’s manuals: abused or misused or is due to the product

being repaired or tampered with by anyone other than Magnet Technology Corp.

or an authorized repair center.

3. The warranty does not apply to defects or failure caused by unauthorized parts,

improper maintenance, fire, flood, lightning or other natural causes.

4. This warranty does not include the damage of external parts i.e., faceplate,

knobs, metal casing, etc.

5. A returned product must include a copy of the Warranty Certification and the bill

of sale.

6. The warranty does not extend to any incidental nor consequential cost or

damages to the purchaser.

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Specifications

Frequency Response (20-20,000Hz) +/- 0.1 dB

THD+noise <0.025

Input Impedance 50K Ohms

Maximum Gain 20 dB

Signal / Noise 98 dB

Maximum Output at 1K 6Vrms

Cross talk at 1 KHz -92 dB

Cross talk 10 KHz -92 dB

Channel Separation at 1 KHz -92 dB

Channel Separation at 19 KHz -91 dB

Input Power AC 220-230 V, 50Hz

Power consumption 14W

Size 17"W x 2.75”H x 12.5”D

Weight Net 3.4 Kg, Shipping 4.4 Kg

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Note

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Note

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Note

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Music Speaks Louder Than Words

Head office

Show room

www.magnet.co.th

845/11-12 Moo 2, Soi Chokechai 4, Ladprao Road., Ladprao Bangkok 10230, Thailand

Tel. (662) 907-7923-5 Fax. (662) 907-7919

Email : info@magnet.co.th

Room B401, 4th floor, Zone C Central World Plaza,Rajdamri Road, Patumwan, Bangkok

10330 Thailand

Tel. (662) 2556261, (662) 2556238 Fax. (662) 2556453

Magnet PR-9R User manual

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