Monitor Audio Platinum series II Manuel utilisateur

Speaker Manual

Contents

Introduction from the Technical Director 2

Company History 2

Premium Materials for Unmatched Aesthetics 3

Natural Leather Characteristics 3

Real Wood Veneers 3

Technologies 4

MPD (Micro Pleated Diaphragm) High Frequency Transducer 4

Ceramic Coated Aluminium/Magnesium (C-CAM®) 4

RDT®II 4

HiVe®II(HighVelocity,LowNoiseReexPort) 4

Anti-Resonance Composite (ARC) 5

Multi-layer Cabinet curved cabinet construction 5

Individual Driver Grilles  5

Single bolt though driver  5

Unpacking 6

Spikes and Feet 6

For Carpeted Floors 6

For Wooden/Hard Floors 6

Setting Up 7

2-Channel Positioning 7

AV Positioning 7

FX Speakers 8

Connecting Speaker Cables 9

Bare Wire Connection 9

Banana Plugs 9

Spade Connectors 9

Wiring 9

Single Wiring 9

Bi-Wiring 10

Bi-Amping 10

TheEectsofBi-Wiring/Bi-Amping 10

Port bungs 11

Running-In Your Platinum II Speakers 12

Care and Maintenance 12

ToolBox 12

Upkeep of Cabinets 13

Cleaning of Finished Leather 13

Stands 13

Guarantee 13

Specications 14

monitoraudio.com 1

Introduction from the Technical Director

“How can a loudspeaker be made to sound more natural? This is the

question that drives our endeavor day-in, day-out. We’re motivated

by the quest to eliminate distortion from the most important element

in your audio system. How far we’ve come can be measured by the

sound of Platinum II: the most accurate and beautiful loudspeakers

Monitor Audio has ever made. Supported by painstaking analysis and

a lifetime of listening, their evolution has rened our technologies,

inspired new discoveries and achieved advances in every area of

design - electrical, mechanical, magnetic, acoustic and aesthetic. The

result is a speaker range of exceptional quality, dedicated to raising

your emotional contact with music and lm sound in all its natural

glory. Built by audio lovers, for audio lovers, Platinum II provides

our answer to the primary challenge of speaker design. To the big

question we simply reply “like this”! “

Dean Hartley

Technical Director

Company History

Since 1972, Monitor Audio’s near fanatical commitment to quality in every aspect of loudspeaker design coupled with

its willingness to innovate has inspired global recognition and acclaim. Daring to challenge design orthodoxy has been

its signature approach.

When Monitor Audio launched its R852MD loudspeaker – the rst

model to incorporate a metal dome tweeter - it caused quite a stir.

Until that time, most metal domes were single-metal types made

from copper or titanium and virtually all sounded unconvincing.

The R852 used an aluminium-magnesium alloy dome and sounded

signicantly better and smoother than all of its single-metal rivals.

It also incorporated ferro-uid damping/cooling of the metal voice-

coil former and a vented voice coil mechanism for better heat

dissipation. These radical design elements formed the basis for

successive generations of C-CAM® metal domes.

By consistently rening and applying the technology, Monitor Audio has become the world’s foremost proponent of

metal dome drivers. Monitor Audio designs everything in house at their world headquarters in England, so that it can

optimise the incomparable blend of virtues that makes Monitor Audio loudspeakers unique: clean, dynamic sound,

superior build quality and innovative design. Because they share a philosophy of excellence and a consistency of

quality and voicing, loudspeakers of dierent types: on-wall, in-wall, oor and stand-mounting, may be used together

to create the perfect acoustic blend for any room.

In the strength and depth of Monitor Audio’s evolving product portfolio, the ideal of a universal whole-house

loudspeaker brand nds true expression. Decades of accumulated expertise and knowledge have rened the rare

mix of innovation, reliability and sheer performance that has propelled the brand to global status and on which

acionados of music and movie sound have come to rely.

Platinum Series II2

Premium Materials for Unmatched Aesthetics

Natural Leather Characteristics

All front baes are hand upholstered using Ingleston leather supplied by Andrew Muirhead. Andrew Muirhead leather

is used in exotic furniture, automotive and marine applications for the most quintessential British names.

Real leather is of course a natural material that ads

a tactile sense of luxury wherever it’s applied. The

Inglestone leather that distinguishes the Platinum II

baes is of a premium quality and is supplied complete

with the characteristics that give it individuality. These

subtle hallmarks enrich the value of ownership and

endow each Platinum II speaker with a unique identity.

Monitor Audio Ltd. is unable to guarantee that the leather

on each speaker will be identical. We can only assure you

that the very best materials have been selected and used.

Real Wood Veneers

Just like a human ngerprint, no two trees are identical. Each wood grain has an exclusive aesthetic beauty that

tells a story of a lifetime of growth. We use only the highest quality natural wood veneers, hand selected and pair

matched from sustainable sources. Platinum II speakers are hand veneered after the cabinet structure is made, and

then coated with 11 layers of clear gloss piano lacquer. These traditional techniques ensure close grain matching,

and invisible veneer panel joining. The exquisite grain denition and rich colour variation provided by our Santos

Rosewood and Natural Ebony veneers make a statement of quality, while blending naturally with any interior style or

decor. Each cabinet is a unique and natural work of art!

Because of this, Monitor Audio Ltd. is to unable guarantee that the veneer on dierent pairs of speakers will be

identical in colour or grain denition. We can only assure you that the very best raw materials have been selected

and applied.

Please refer to page 12 for advice on care and maintenance.

monitoraudio.com 3

Santos Rosewood Real Wood VeneerPiano Ebony Real Wood Veneer

Technologies

MPD (Micro Pleated Diaphragm) High Frequency Transducer

AMT design was rst invented by Dr Oskar Heil in the 1970s. However, all designs typically suer from a null in the

frequency response around 40kHz. Using FEA modelling techniques, Monitor Audio engineers were able to nd the

root cause of this null and develop a solution. This phenomenon was eliminated, allowing the driver to operate with

uniform output to over 100 kHz. We call this unique innovation Micro Pleated Diaphragm (MPD).

The folded MPD diaphragm exhibits a surface area typically eight times that of a

conventional dome tweeter, and around thirteen times that of a pure ribbon tweeter.

This large surface area improves the conducted heat path and the open front

increases the convection. The power handling is also improved by the high sensitivity

of the tweeter. The AMT design also provides a constant non-reactive load to the

amplier, this means it’s able to deliver power more eciently with lower distortion.

The MPD is designed to bend and does not rely on its structural integrity to extend high in the

frequency range. There are no break up modes throughout the entire frequency range, exhibiting clean sonic character,

free from any harmonic artefacts.

Ceramic Coated Aluminium/Magnesium (C-CAM®)

C-CAM is an innovative alloy material originally developed by the aerospace industry. It exhibits ideal qualities for use

as loudspeaker cones, being extremely rigid, yet light enough to yield high overall eciency. C-CAM is formed from

an alloy of aluminium and magnesium, which undergoes stress-relieving processes in manufacturing to avoid surface

deformation and molecular weakness. A layer of pure ceramic (alumina) is depleted onto the surfaces to produce a

completely rigid exterior. C-CAM cones are designed to have high resistance to bending stress. When formed into a cone,

C-CAM material provides increased clarity and reduced distortion compared to conventional cone materials.

RDT®II

RDT II is a composite ‘sandwich’ structure made from ultra-thin low-mass

skins, bonded to a honeycomb NomexR core material. The overall thickness of

the RDT II diaphragm is only 2mm, yet it exhibits 150 times the strength of

a conventional loudspeaker cone. RDT II is a unique, innovative development

conceived by Monitor Audio engineers for the new Platinum II series. It uses two

skin materials with dissimilar mechanical properties. C-CAM is used for the front

skin, while the rear skin is made from a woven carbon bre. This combination is able

to reduce distortion by over 8dB above 300Hz, which equates to a 60% reduction in

the energy of harmonic components, making RDT II the lowest distortion cone technology in Monitor Audio’s history.

HiVe®II(HighVelocity,LowNoiseReexPort)

A new type of port technology which uses a straight ried design to accelerate air ow and reduce turbulence. HiVe

II technology has the ability to move air in and out much quicker than a conventional port, the result is fast powerful

bass coupled with superior transient response.

Platinum Series II4

Anti-Resonance Composite (ARC)

A cast thermo-set polymer loaded with minerals to provide very inert, optimally damped components. This material is

ideal for high-end acoustic applications where a high degree of structural rigidity and vibration damping is required.

ARC is used for mid-range housings and bae components. ARC is a unique material, developed specically by

Monitor Audio engineers for the Platinum II series. Its properties ensure energy is damped out and not emitted as

high-Q resonance.

Tapered line enclosure (TLE)

A tapered, parabolic-shaped enclosure cast from ARC material and designed to prevent the propagation of standing

waves and modal resonances. The tapered shape also has the eect of attenuating high frequencies: smaller waves

being suppressed with the use of graduated damping materials. TLE is a unique design developed specically by

Monitor Audio engineers for the Platinum series II.

Multi-layer Cabinet curved cabinet construction

Platinum II cabinets are hand built using multiple laminations of wood veneers and

shaped using complex curves to form a rigid shell. Curved surfaces are inherently

stronger than at surfaces. Since internal sides are non- regular curvatures, standing

waves (loosely dened as internal reections) cannot be set up.

New internal bracing structures have been developed to ensure the ultimate in

structural integrity, as well as serving to break up long acoustic paths internally.

Instead of large open spaces internally, we now have small, dedicated compartments

and chambers. This further reduced the prospect of standing waves, and is particularly

ecient at lower frequencies.

Bitumastic internal damping material is applied to all internal cabinet walls, ensuring

that any residual energy is damped out. The resulting homogenous enclosure is

supremely rigid, acoustically inert and able to deliver the sound as it was intended,

natural and uninhibited.

Individual Driver Grilles

Drivers are covered by individual grilles, designed to be acoustically transparent. The

system will therefore sound just as good whether the grilles are on or o.

Single bolt though driver

All Platinum II drivers feature a unique single bolt-through driver xing system. Each

driver is xed into to the cabinet from the rear using a long bolt tightened to a specic

torque setting during production. The bolt serves to provide the driver with an equal

clamping force around the periphery, whilst ensuring the motor system is braced.

Since this is eectively an additional form of bracing, the cabinet system with drivers

installed becomes even more rigid.

monitoraudio.com 5

Platinum Series II6

Unpacking

Before you unpack your speakers, please make sure that there is plenty of clean oor area available. Pictorial guides

printed on the outer transit carton show you the ideal method for unpacking. Please see below for more information.

WARNING: DO NOT attempt to lift any of the speakers alone. The recommended number of people is

printed on the outer carton.

For all speakers (except the PL300 II and PL500 II): Lay the box down on the oor so the opening is on the side facing up.

Open the outer carton and then use the handles of the inner cardboard sleeve to lift the speaker and packaging out of the box.

Remove the polystyrene end caps and t the feet/spikes (where applicable). Please refer to the Spikes and Feet section below.

The PL300 II and PL500 II: Should be unpacked standing upright, the top of the speaker is indicated on the carton. Open

the carton and use the holes provided in the cardboard tray at the base of the speaker to pull the speaker out of the carton.

The sleeves at the side can be used also to steady the speaker and assist pulling. Once the speaker is out remove the top

polystyrene cap. Tilt the Speaker to remove the base polystyrene caps and protective cloth. The PL500 II has easy-slide

feet attached to the bottom of the plinth. These enable easy positioning of the PL500 II. They work on all oors and will not

scratch. If the carpet is very thick, these may not work as eectively and the cabinet will need to be “walked” into position.

Once positioned the spikes/feet can be added by tilting the cabinet as previously described, please refer to the Spikes and

Feet section below.

Spikes and Feet

For Carpeted Floors

(PL200 II, PL300 II and PL500 II only)

The feet are supplied pre-assemble for use on carpeted oors or where spikes

are appropriate. All you need to do is x them into the plinths. This is achieved

by screwing the feet fully into the 4 threaded holes in the plinth. They are then

secured using the large locking nuts provided.

You can check that the speaker is level on all sides by using the levelling tool

provided in your tool kit. If it’s slightly o-level, unscrew the foot at the lowest

point and check again. Continue this process until the cabinet is fully level. Use

the locking nuts on each foot to x the feet in place and to stop any unwanted

vibrations.

Please ensure there are no hidden wires under the carpet that could be

damaged by the spikes.

For Wooden/Hard Floors

(PL200 II, PL300 II and PL500 II only)

If the speaker is being installed on a hard/wooden oor, remove the spike from the

foot assembly as illustrated.

You can check that the speaker is level on all sides using the levelling tool provided

in your tool kit. If it’s slightly o-level, unscrew the foot at the lowest point and

check again. Continue this process until the cabinet is fully level. Use the locking

nuts on each foot to x the feet in place and to stop any unwanted vibrations.

Locking Nut

Plinth

Locking Nut

PL500 II

Only

Main Threaded

Part

Rubber Pad

Spike

Setting Up

2-Channel Positioning

When arranging a 2-channel system, the listening position and the loudspeakers should form an equilateral triangle.

The speakers should be positioned approximately 6 - 10 feet (1.8 - 3m) apart. The ideal distance from the rear wall

varies depending on the speaker (see guide below), however, the speakers need to be a minimum of 3 feet (91cm)

from the side walls.

• Platinum 100 II: 8 - 18 inches (20 - 45cm)

• Platinum 200 II: 18 - 24 inches (45 - 60cm)

• Platinum 300 II and 500 II: up to 36 inches (91cm)

When setting up the speakers,experimentation is strongly advised,as environmental acoustics and personal preference

dier with every installation. If there is insucient bass present for example, try moving your speakers closer to a

wall. The opposite approach is recommended if there is excessive bass. In addition, please see the information on the

supplied USB referring to port bungs. If stereo imaging is being lost, try ‘toeing-in’ the speakers slightly. The sound

should appear to originate from the centre point between the speakers, not the speakers themselves.

AV Positioning

Please refer to the illustration below and on page 8 for the ideal angles and positions of each speaker in your surround

system. The speakers should be distanced from the wall according to the requirements of the speaker, which are listed

in the 2-Channel Positioning section (page 7).

If the sound is too bass heavy or there is bass boom from the room when playing music (without a subwoofer), try

moving the loudspeakers slightly further away from the wall(s) or adjusting the crossover frequency settings for the

speakers and/or sub. Also try changing the subwoofer’s position. If this is not possible, then try the supplied port

bungs. Please refer to the full manual on the supplied USB for more information.

The Platinum II Centre channel speaker should be positioned so that it is pointing at the viewing position and at

approximate ear height. If it is below or above ear height, use the rubber feet supplied to angle it slightly

An example of a Platinum 7.1 system consisting of PL300 II front Left/ Right, a PLC350 II centre channel and PL100 II surrounds.

monitoraudio.com 7

8Platinum Series II

1. Side surround speakers

2. Rear surround speakers

A 7.(1) surround system will make use of side (position 1) and rear (position 2) speakers to create a full 360°

soundstage, if setting up a 5.(1) system you can place your surrounds in position (1) or (2).

FX Speakers

If you wish to use FX speakers in an AV system with Platinum Series II we would recommend the Gold FX, which not

only will be a good timbre and tonal match with your Platinum II speakers but is also available in the same selection

of high quality nishes. The FX can also be ush-mounted on side or rear walls.

When compared to a traditional surround speaker the FX oers the

addition of spatial sound dispersion through the use of side ring

tweeters which can be used in Di-Pole (spatial sound) or Monopole

(direct ring) mode.

For more information on the Gold FX please refer to our website:

www.monitoraudio.com

The Gold FX in high gloss Piano Black

90°-90°

110°-110°

135°-135°

150°-150°

0°

30°-30°

22°-22°

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