Rega Cursa 3 Manuel utilisateur

Contents

Introduction.............................................................................1

Design Innovation...................................................................2

Installation...............................................................................3

DC Protection..........................................................................4

Pre-Amp Outputs....................................................................5

Input Connection..................................................................6-8

In Use................................................................................9-10

Input Selection.......................................................................11

Output Level and Gain change..............................................12

Power Amp Connections......................................................13

Specifications.......................................................................14

Troubleshooting...........................................................15-19

Owners Log......................................................................20

Cursa 3 manual.qxd 10/12/2002 15:23 Page 1

Introduction

Your Rega pre-amplifier has been designed to reproduce music

effectively and easily. The Cursa 3has been built to Rega’s

discriminating standards of reliability and quality to ensure many

years of musical enjoyment.

A pre-amplifier's function is to act as a control and switching unit for

a variety of sources, and to boost the tiny signal generated by a

cartridge, CD player, or other source to a level suitable for input into

a power amplifier; which in turn boosts it to a higher level to drive the

loudspeakers. It is vital that the amplifier achieves this without

changing the signal, as this would distort the music. We have avoided

superfluous gadgets such as tone controls or a headphone socket as

they obstruct the signal path and degrade the produced sound

quality.

The Rega amplifiers incorporate remarkable and innovative design

ideas. For those interested in the technical details, these innovations

are described more fully in this manual. Alternatively, you can simply

switch on, sit back, and let your amplifier speak for itself...

Mission Statement

Rega’s philosophy is to make high quality products at sensible prices, as a means

of reproducing music as faithfully as possible. Rega is committed to the design

and development of new and existing products, both in hi-fi and other areas, that

will perpetuate Rega’s values of quality and value for money.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 2

Design Innovation

In common with all Rega products, the Cursa 3 pre-amplifier has

been designed without compromise. Our time and money has been

spent on developing the unique circuit design and sourcing unusually

high quality components. However, we have included useful features

to further enhance your listening pleasure.

The Cursa 3 amplifier has digitally controlled analog switched

resistor network volume control.

The Cursa 3 is a programmable gain pre-amplifier

The Cursa 3 amplifier features REGA designed circuitry, developed

in-house with the aid of CAD circuit simulation, computer modeling

and extensive listening.

The Cursa 3 amplifier includes extremely high quality components

not normally found in a pre-amplifier of this price. These include high

tolerance polypropylene capacitors, and a toroidal transformer.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 3

Installation

The amplifier will work well on most surfaces, such as a shelf or a

table, provided there is sufficient air around it to prevent overheating.

To avoid magnetic interference, site the amplifier as far away from the

turntable as the tonearm lead will allow. If possible, place it to the left

of the turntable.

Keep other equipment, such as tuners, cassette decks or CD players

away from the amplifier. Never stack other hi-fi components on top of

the amplifier.

Due to the layout of Rega’s amplifier circuit designs, they are virtually

insusceptible to electro magnetic interference, and by virtue of the

extruded aluminium case, emit practically no electro magnetic

radiation. However, placing any electronic equipment close together

may impair the performance of one or both items.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 4

DC Protection

The amplifier has a circuit which protects the power amplifier

connected to the pre-amplifier output, from direct current in the event

of a major failure of the system.

The use of this sophisticated DC protection circuit in conjunction with

a servo correction stage, (on all line inputs) allows the amount of

capacitors in the signal path to be kept at a minimum. This prevents

unnecessary sound degradation at this crucial line level stage,

providing true musical accuracy and the flexibility to drive up to 5

power amplifiers.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 5

Pre-Amp Outputs

The pre-amplifier can drive at least 5 power amplifiers, sub bass units

etc.

The 2 parallel pre-amp outputs use RCA type (phono) connectors.

The output is at standard line level of 0.83V, but your Rega dealer will

be able to modify the output level to accomodate a range of power

amplifiers. See specifications on page 13 for further details.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 6

Input Connections

All inputs and outputs are made via RCA (phono) type connectors.

The sockets on the Rega amplifiers are clearly marked red and white.

Right: always the lower row and marked in RED.

Left: always the upper row and marked in WHITE.

Rear Panel Connections

Rega Research Ltd., England

POWER IN

Phono CD Tuner Line1 Line2 Tape

In 1 Tape

Out 1 Tape

In 2 Tape

Out 2

Pre

Amp

Out 1

Ground Screw

Pre

Amp

Out 2

Cursa 3 manual.qxd 10/12/2002 15:23 Page 7

Phono Input

The Phono Input uses a plug-in card aIlowing you to use either

moving magnet (MM), moving coil (MC), or if you do not use a

turntable there is a line level card option allowing you to have an

additional line level input. These cards must be pre-specified on

purchase, or can be changed by your Rega dealer. For input

sensitivities of the different cards see the specifications on page 15.

Earthing of Tonearm

Earthing is done via the Phono socket ground for Rega turntables so

a separate earth is not necessary. In the unlikely event that your

tonearm needs to be earthed to the amplifier, the grounding tag may

be connected to the case grounding screw above the input sockets.

See Rear Panel Connections drawing (page 6).

Compact Disc Input

The Compact Disc input is suitable for use with any CD source.

Tuner Input

The tuner input is suitable for use with most types of AM/FM tuners.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 8

Line Inputs

The line inputs enable the connection of additional sources, such as

a second tape machine, tuner, or video recorder for use with an Audio

Visual system.

Tape Input/Output

Almost any tape machine can be used with your amplifier, including

compact cassette, video cassette, reel to reel, DAT, and DCC.

NOTE: All inputs, (other than the moving magnet or moving coil

PHONO input options), are at standard "line level" and can

therefore be used for any line level input.

Cursa 3 manual.qxd 10/12/2002 15:23 Page 9

In Use

Switching On

The amplifier is turned on by depressing the power switch to the left

of the control panel. The LED in the power switch will glow red.

After several seconds you may hear a gentle click. This indicates that

the switch-on relay has been released and the amplifier is ready for

use.

Volume control

The volume of the amplifier can be adjusted using the volume knob

on the amplifier and via the remote handset as described below.

Line2

Line1

Tuner

Phono

Tape

Mute

Mira

Volume Control/Input selector

Power switch &

power LED Volume Indicator LED’s

Remote sensor Heatsink

Tape switches Mute switch/

Dimmer function

Cursa

Tape 2

Cursa 3 manual.qxd 10/12/2002 15:23 Page 10

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