Rega RP10 Manual de usuario

Turntable

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CONTENTS

INTRODUCTION / EVOLUTION OF REVOLUTION 1

TURNTABLE DESIGN & MYTHOLOGY 2

DESIGN AND INNOVATION 3-7

SETTING UP YOUR RB2000 7

SETTING UP YOUR TURNTABLE 8

CONNECTING THE CUSTOM POWER SUPPLY 9

POWER SUPPLY FRONT PANEL CONTROLS 10

CARE OF THE TURNTABLE 11-12

TRANSPORTING YOUR TURNTABLE 12

OWNERS LOG 13

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INTRODUCTION

The RP10 has been designed and engineered to achieve outstanding performance.

Excellent build quality, reliability and ease of use combine to make a product which, if

used correctly, will offer you a lifetime of musical enjoyment.

The RP10 takes Rega’s design philosophy further than ever before. A radical new plinth

using custom designed materials, a new tonearm bearing assembly, a 24V low voltage

motor controlled by a hand tuned electronic power supply and a custom version of our

engineered hub bearing assembly. These are just some of the features of this amazing

new turntable designed to extract more music from your vinyl than ever before.

THE EVOLUTION OF REVOLUTION

Evolution is a well proven and documented process in many areas of our lives. This

applies in particular to design engineers and machines. Over the past forty years our

cars have become more reliable and economical whilst we take for granted the safety

and speed of modern aircraft. Rega is no exception to evolution. Rega’s experience and

previous achievements allows us to continually develop and produce better products.

The RP8 & RP10 represents probably the biggest step forward in the evolution of Roy

Gandy’s turntable design philosophies. Low mass, high rigidity plinths combined with

electronically controlled low vibration motors, high flywheel effect platters and lower

mass, higher stability tonearms. The RP10 is the second generation of our “skeletal”

design turntables offering groundbreaking levels of performance.

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TURNTABLE DESIGN & MYTHOLOGY

Today there are many approaches to hi-fi design which follow established and informed

engineering or electronic principles. Amplifier and loudspeaker design have been well

documented over the years with excellent technical publications. These subjects have

been based on tried and tested acoustic criteria and many computer software

programs now exist that enable a near amateur to design a passable working

loudspeaker based on known acoustic and mathematical parameters.

When it comes to turntable design we are limited to a few poorly informed articles

describing only very limited aspects of design. This is a subject full of mythology.

Designers propose theories that counter the basic laws of physics, use terminology

that doesn’t actually exist in the engineering world, build products that are more like

beautiful sculptures than acoustic reproduction machines and sell items costing tens

of thousands of pounds that hardly function as intended and often fail to work at all. For

instance, a very common myth is “the heavier the better”. Turntable bases weighing

tens of kilograms are not uncommon. The reality is that the base actually needs to be

as light as possible to prevent unwanted bearing and motor noise being transferred to

the turntable or record. Platters also fall under a similar myth with many platter

designs becoming so heavy that it is impossible to design a correctly functioning

bearing (and some so light that anyone can hear the speed inconsistency). The

turntable platter itself needs to be of enough weight to spin at a constant speed within

the confines of the chosen bearing and motor drive system. Many amateur designers

choose one component in a design and try to achieve an extreme in size, weight and

quality. They believe that by taking one theory to its extreme, the design will become

“perfect”. The reality of all engineering, design (and life) is that perfection is not

possible. Based on this reality, Rega’s goal has always been to optimise a mixture of

numerous “correct compromises” thus bringing the designer nearer to the

unachievable goal of perfection.

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DESIGN AND INNOVATION

SKELETAL PLINTH DESIGN WITH POLYOLEFIN FOAM CORE

Controversially, Rega has always researched methods of producing light but stiff and

rigid plinths. The technology is simple: unwanted noise at microscopic levels is

developed by the turntable motor and main bearing. The plinth can also pick up airborne

vibration from the music. From it’s beginning in the 1970’s, Rega pioneered the use of a

stressed skin structure for the plinth. This uses two layers of phenolic resin with a

lightweight particle or fibre board sandwiched between the skins. This technique has

been used in many applications where stiff, light structures are needed, such as an

aircraft wing or a Formula 1 chassis.

The current revival in turntables has allowed Rega to research and develop higher

technology structures for the customer who is happy to pay a little more for higher

sound quality. The RP8 & RP10 turntables utilise a unique stressed skin structure

produced from thin phenolic skins sandwiching a featherweight, nitrogen expanded,

closed cell, polyolefin foam core. This material has been developed exclusively for Rega

over a three year period. The RP10 plinth is seven times lighter than the weight of the

original Planar 3 plinth. In addition Rega has added even more stiffness in the crucial

area between the arm and the main bearing.

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MAGNESIUM AND PHENOLIC - DUAL BRACING

A super lightweight plinth combined with a double brace mounted specifically where the

increased rigidity is required (between the tonearm mounting and the main hub

bearing) forms a structurally sound, “stressed beam” assembly. This design prevents

energy absorption and unwanted resonances which will add unnatural distortions to the

music.

The RP10 takes our double brace technology to the next level. Not content with an

unprecedented stiffness to mass ratio, Rega has obsessively reduced any resonant

properties by using two different materials for the new stressed beam. The top layer is

magnesium and the bottom layer is phenolic (two of the lightest and stiffest materials

available). Incorporating two different materials into the brace structure lowers their

ability to pick up unwanted airborne vibrations.

Simply put, different materials have different natural resonances. By using two

different materials together, they decrease the natural frequency of each other by self

damping.

CERAMIC PLATTER

The RP10 uses a custom ceramic flywheel effect platter. The platter is produced from

a ceramic oxide powder which is compressed, fired and diamond cut to ensure perfect

accuracy and flatness across the surface. This new platter features a modified

construction over the previous P9 version with improved coupling to the sub platter.

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MOTOR

The motor is a high specification, 24V twin phase synchronous unit. It is controlled by

Rega's unique and innovative RP10-PSU power supply. The motor drives the CNC

machined pulley, sub platter and hub-bearing assembly via the twin belt drive. Each

motor is individually hand tuned to its own custom power supply in the factory to

minimise vibration, motor noise and ensure optimum performance.

DE-COUPLED OUTER FRAME AND DUST COVER

A common problem for many skeletal design turntables is the inability to incorporate

an effective dust cover into the design. We have constructed an outer frame that

minimises contact between the inner and outer plinth. The only points of contact are

three location devices on the feet which centralises the inner and outer plinths

perfectly. This makes set-up extremely easy and allows the use of a dust cover. The

RP10 can be used without the outer frame if so desired.

RP10 CUSTOM - POWER SUPPLY

The speed and control is achieved by using a new DSP (digital signal processing)

generator built upon a high stability crystal. The device will divide the accurate square

wave from the crystal to the exact frequency required to turn the platter at the

selected speed. The DSP core will also generate a near perfect sinusoidal waveform to

power the motor. Factory set vibration and speed adjustments are then made to the

power supply to tune the motor for optimal performance.

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TONEARM

The RB2000 tonearm is packed with new features pushing the boundaries of tonearm

design. As with all Rega tonearms, each one is meticulously hand built by a team of

highly skilled technicians. The RB2000 uses improved bearings with each one being

hand selected to be an interference fit with the paired spindle matching both the inside

and outside diameters. This is a Rega developed method of increasing the amount of

detail retrieved from the record surface, designed specifically to maximise

performance of the tonearm and cartridge. The entire tonearm structure is designed

to have the minimum of mechanical joints whilst using the stiffest materials in all

critical areas. The tolerance of the RB2000 tonearm is so tight that no adhesive is used

at any point throughout the construction. A brand new low mass, precision engineered,

vertical bearing assembly has been manufactured to further compliment the inherent

design philosophy of the RP10 turntable. The RB2000 uses the latest award winning

Rega arm tube. Each one which is meticulously hand polished (keeping mass to an

absolute minimum) and has been completely redesigned to redistribute mass and

further reduce stresses and resonances. This advanced design tube increases the

stiffness and rigidity of the overall assembly whilst reducing stress on the bearings

even further.

INTERCONNECTS

Externally we have fitted a bespoke, Rega designed, low capacitance phono cable which

uses an advanced phono plug assembly. This has only two parts to minimise joints and

incorporates a twist and clamp design, locking the plug to the terminal. This design

increases connectivity and ensures the signal path is kept as clean as possible.

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IMPORTANT: ALWAYS REMOVE THE CERAMIC PLATTER BEFORE

LIFTING OR RELOCATING THE RP10

Always remove the ceramic platter before locating the RP10 central plinth into the

outer frame or when lifting the whole turntable to relocate it. The ‘o’ rings will not

centralise the plinth within the frame if the weight of the platter is present.

SETTING UP YOUR RB2000

With the cartridge mounted correctly and set up using the alignment protractor

supplied, ensure that the tracking force control and bias adjustment slider are set to

zero. (Pull the bias adjustment fully out to set zero). Slide the balance weight along its

shaft until the stylus is “floating” just 1mm clear of the record.

The recommended tracking force can now be applied via the tracking force control

shown on page 8. Always use a force which corresponds to the upper limit of the

cartridge makers recommended range. Push the bias adjustment slider to the same

number as the tracking force control. For example, a recommended 2.0g tracking force

= 2.0 on the bias slider. Note: It is not necessary to use the alignment protractor if the

turntable has a factory fitted Rega cartridge.

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