SPL Phonitor 2730 Bedienungsanleitung

Manual

Phonitor

Headphone Monitoring Amplifier

Model 2730

OFF ON OFF ON

METER CAL.

METER MODE

VU PPM

+60

-2 0

MONO

CROS./SPK. CENTER

OFF ON OFF

SOLO

L R

OFF

L R

OFF

DIM

120 V Rail Headphone

Monitoring Amplifier

Phonitor

Model 2730

2Phonitor

Manual Phonitor Model 2730

Version 1.0 – 5/2008

Designer: Wolfgang Neumann, Hermann Gier

This user‘s guide contains a description of the product. It in no way represents

a guarantee of particular characteristics or results of use. The information in

this document has been carefully compiled and verified and, unless otherwise

stated or agreed upon, correctly describes the product at the time of packaging

with this document.

Sound Performance Lab (SPL) continuously strives to improve its products and

reserves the right to modify the product described in this manual at any time

without prior notice. This document is the property of SPL and may not be copied

or reproduced in any manner, in part or fully, without prior authorization by SPL.

SPL electronics GmbH, Sohlweg 80, 41372 Niederkruechten, Germany

Phone. +49 (0)2163 983 40

Fax +49 (0)2163 983 420

E-Mail: info@soundperformancelab.com

Internet: www.soundperformancelab.com, www.spl-usa.com

CE Declaration of Conformity

Manufacturer: SPL electronics GmbH, Type of Equipment: Audio Signal

Processor, Product: Phonitor, Model 2730, Compliance Engineer:

Wolfgang Neumann

Test Basis: EN50081-1:1992, EN50082-1:1992, EN60065:1993, EN61000-3-3:1995,

EN60065:2002, EN55013:2001, EN55020:2002, EN61000-3-2:2000, 73/23 EWG;

93/68 EWG. We herewith declare, that the construction of the Phonitor, Model

2730, is in compliance with the standards and regulations mentioned above.

Notes on Environmental Protection

At the end of its operating life, this product must not be disposed of

with regular household waste but must be returned to a collection

point for the recycling of electrical and electronic equipment. The

“wheelie bin“ symbol on the product, user‘s manual and packag-

ing indicates that. The materials can be re-used in accordance with their mark-

ings. Through re-use, recycling of raw materials, or other forms of recycling of

old products, you are making an important contribution to the protection of our

environment. Your local administrative office can advise you of the responsible

waste disposal point.

WEEE Registration: 973 349 88

and their products are trademarks of their respective owners.

Phonitor 3

Symbols And Notes, Scope of Delivery ............................. 4

Important Security Information ..................................... 5

Hook Up .............................................................. 7

Introduction .......................................................... 8

Applications ....................................................... 9

A New Kind Of Headphone Amplifiers:

Headphone Monitoring Amplifiers ............................... 9

With And Without Magnifiers .................................... 9

The End Of Ear Fatigue ............................................ 10

Rear Panel/Connections ............................................ 12

Wiring .............................................................. 12

Voltage, Power Connection, Power, XLR Connectors . . . . .... . . . . 13

Pin Wiring XLR Connectors, GND Lift Switch ..... . . . . ..... . . . . ... 14

Front Panel/Connection ............................................. 15

Headphone Connection, Recommendations, Warning . ..... . . . . 15

Control Elements .................................................... 16

Crossfeed, Speaker Angle ........................................ 16

Interaural Level and Time Differences

as Related to Crossfeed Setup .... . . . . . .... . . . . . .... . . . . . .... . . . . 17

Interaural Level and Time Differences

as Related to Speaker Angle Setup ....... . . . . . .... . . . . . .... . . . . . 18

Table: Crossfeed and Speaker Angle Parameters . . ..... . . . . . ... 19

CROS./SPK., Center Level, Center Off/On . . . . .... . . . . . .... . . . . . .. 20

VU Meter, Signal LED, Overload LED ... . . . . . ..... . . . . ..... . . . . ... 21

Meter Mode, Meter Cal., Dim ..................................... 22

Solo, Phase Ø ..................................................... 23

Mono, Volume .................................................... 24

OPERATION: Quick Guide to Headphone Monitoring ........... 25

Adjust Headphone Reproduction to Loudspeaker Monitoring ... 25

Specifications ....................................................... 28

Measurements ...................................................... 29

Frequency Response, Phase Response . . . . . . .... . . . . . .... . . . . . .. 29

THD vs. Output Level, THD vs. Frequency .. . . . . . .... . . . . . .... . . . . 30

Copy Master: Recall Settings ....................................... 31

Guarantee ............................................................ 32

Contents

4Phonitor

Symbols and Notes

Scope Of Delivery

Symbols And Notes

IN THIS MANUAL A LIGHTNING SYMBOL WITHIN A TRIANGLE WARNS

YOU ABOUT THE POTENTIAL FOR DANGEROUS ELECTRICAL SHOCKS

– WHICH CAN ALSO OCCUR EVEN AFTER THE MACHINE HAS BEEN

DISCONNECTED FROM A POWER SOURCE.

AN EXCLAMATION MARK (!) WITHIN A TRIANGLE IS INTENDED TO MAKE

YOU AWARE OF IMPORTANT OPERATIONAL ADVICE AND/OR WARNINGS

THAT MUST BE FOLLOWED. BE ESPECIALLY ATTENTIVE TO THESE AND

ALWAYS FOLLOW THE ADVICE THEY GIVE.

The symbol of a lamp directs your attention to explanations of impor-

tant functions or applications.

Attention

Do not attempt any alterations to this machine without the approval

or supervision of SPL electronics GmbH. Doing so could nullify com-

pletely any and all of your warranty/guarantee rights and claims to

user support.

• Phonitor, Model 2730

• This manual

• Power cord

Phonitor 5

Important Security Information

Please note and retain this manual. Carefully read and follow all of the

safety and operating instructions before you use the machine. Be dou-

bly careful to follow all warnings and special safety instructions noted

in this manual and on the unit.

Connections: Only use the connections as described. Other connec-

tions can lead to health risks and equipment damage.

Water And Humidity: Do NOT use this machine anywhere near water

(for example near a wash basin or bath, in a damp cellar, near swim-

ming pools, or the like). In such cases there is an extremely high risk of

fatal electrical shocks!

Insertion Of Foreign Objects Or Fluids: NEVER allow a foreign object

through any of the machine‘s chassis openings. You can easily come

into contact with dangerous voltage or cause a damaging short circuit.

NEVER allow any fluids to be spilled or sprayed on the machine. Such

actions can lead to dangerous electrical shocks or fire!

Opening the Machine: Do NOT open the machine housing, as there is

great risk you will damage the machine, or – even after being discon-

nected – you may receive a dangerous electrical shock!

Electrical Power: Run this machine ONLY from sources which can

provide proper power at the prescribed rating. When in doubt about

a source, contact your dealer or a professional electrician. To be sure

you have isolated the machine, do so by disconnecting the power cord

from your wall connection. Be sure that the power cord plug is always

accessible. When not using the machine for a longer period, make sure

to unplug it from your wall power socket.

Power Cord Protection: Make sure that your power cord is arranged

to avoid being stepped on or any kind of crimping and damage related

to such event. Do not allow any equipment or furniture to crimp this

power cord.

Power Connection Overloads: Avoid any kind of overload in connec-

tions to wall sockets, extension or splitter power cords. Always keep

manufacturer warnings and instructions in mind. Overloads create fire

hazards and risk of dangerous shocks!

Lightning: Before thunderstorms or other severe weather, disconnect

the machine from wall power (but to avoid life threatening lightning

strikes, not during a storm). Similarly, before any severe weather, dis-

connect ALL the power connections of other machines and antenna and

phone/network cables which may be interconnected so that no light-

ning damage or overload results from such secondary connections.

6Phonitor

Air Circulation: Chassis openings offer ventilation and serve to protect

the machine from overheating. NEVER cover or otherwise close off

these openings. NEVER place the machine on a soft surface (carpet,

sofa, etc.). Make sure to provide for a mounting space of 4-5 cm/2 inch-

es when mounting the machine in racks or cabinets.

Controls And Switches: Operate the controls and switches only as

described in the manual. Incorrect adjustments outside safe para-

meters can lead to damage and unnecessary repair costs. Never use

the switches or level controls to effect excessive or extreme changes.

Repairs: Unplug the machine and immediately contact a qualified

technician when you think repairs are needed – or when moisture or

foreign objects may accidentally have gotten in to the housing, or in

cases when the machine may have fallen and shows any sign of hav-

ing been damaged. This also applies to any situation in which the ma-

chine has not been subjected to any of these unusual circumstances

but still is not functioning normally or its performance is substantially

altered.

In cases of damage to the power cord or its plug, first consider turning

off the main circuit breaker before unplugging the power cord.

Replacement/Substitute Parts: Be sure that any service technician

uses original replacement parts or those with identical specifications

as the originals. Incorrectly substituted parts can lead to fire, electrical

shock, or other dangers, including further equipment damage.

Safety Inspection: Be sure always to ask a service technician to con-

duct a thorough safety check and ensure that the state of the repaired

machine is in all respects up to factory standards.

Cleaning: In cleaning, do NOT use any solvents, as these can damage

the chassis finish. Use a clean, dry cloth (if necessary, with an acid-free

cleaning oil). Disconnect the machine from your power source before

cleaning.

Important Security Information

Phonitor 7

Be very careful to check that the rear chassis power selection switch

is set to the correct local line voltage position before using the unit

(230 V position: 220-240 V/50 Hz, 115 V position: 110-120 V/60 Hz)!

When in doubt about a source, contact your dealer or a professional

electrician.

Before connecting any equipment make sure that any machine to be

connected is turned off. Follow all safety instructions from page 5.

Place the unit on a level and stable surface. The unit’s enclosure is EMC-

safe and effectively shielded against HF interference. Nonetheless, you

should carefully consider where you place the unit to avoid electrical

disturbances. It should be positioned so that you can easily reach it,

but there are other considerations. Try not to place it near heat sources

or in direct sunlight, and avoid exposure to vibrations, dust, heat, cold

or moisture. It should also be kept away from transformers, motors,

power amplifiers and digital processors. Always ensure sufficient air

circulation by keeping a distance of 4-5 cm/2 inches to other units and

to the sides of the unit.

Before You Begin

Make sure the Volume control is turned hard left before you power up

the unit. Now control Volume. Note that too high levels can damage

headphones and hearing!

Hook Up

8Phonitor

Introduction

There is more than meets the eye in working with headphones. A rea-

son for this surely lies in that modern audio production often neces-

sitates decentralized processes. In turn, production phases following

such plans more often take place in acoustically questionable rooms.

In such circumstances, a mix might occur in an acoustically deficient

ambiance (for example, in an extremely modal room), and employing

headphones then begins to make sense when a successful mix would

otherwise turn out to be impossible.

But another fact is that many musicians or producers might wish to – or

be able to – mix at home (to say nothing of having to). Then the head-

phone becomes a clear must, enabling an evening or late night session

that can only take place thanks to its being unhindered by the local

acoustic environment.

Each and every careful headphone user should know about the ana-

lytical advantages of headphone monitoring, but also about the main

disadvantage: the difficulty (if note impossibility) in properly judging

room ambiance.

Therefore, several years ago SPL began planning the development of

a compact, professional headphone amplifier design based on its 120

volt technology. The essential inspiration came from project manager

Hermann Gier‘s desire to eliminate the major disadvantage in working

with headphones. It therefore meant transferring essential ambient

parameters of loudspeaker monitoring to the headphone monitoring.

After several years of development and painstaking optimization, we

can now introduce the Phonitor, whose derivative name from combin-

ing “Headphone“ and “Monitor“, conveys the successful conclusion of

this process.

At first glance the Phonitor‘s functional range makes immediately

clear that this is not just another headphone amplifier. With the usual

(monitoring) parameters there are new functions such as “Crossfeed“,

“Speaker Angle“ and “Center Level“. These are the essential parame-

ters to create what with loudspeaker monitors are perception of width,

balance and overall space and how we recognize them coming from

the loudspeaker. Crossfeed simulates the frequency dependent inter-

aural level differences from both channels. Speaker Angle determines

the stereo width caused by frequency dependent interaural time dif-

ferences. Center Level regulates the balance between phantom center

and L/R stereo signals.

Phonitor 9

Applications

Aside from its outstanding abilities as loudspeaker substitute the

Phonitor offers well equipped studios a fully functional monitoring

alternative.

In addition one can take along the Phonitor into an unfamiliar studio

or production environment that always provides the engineer’s own

monitor sound.

Furthermore, with the Phonitor one can simply enjoy music as it was

originally mixed, namely for playback over loudspeakers.

A New Kind Of Headphone Amplifiers:

The Headphone Monitoring Amplifiers

The Phonitor design is our high-end interpretation for what a complete

headphone amplifier should be. A well chosen system of Phonitor and

headphones can by and large replace loudspeakers and offers best

requirements for a fatigue-free hearing and successful work sessions.

We therefore refer to the Phonitor as a headphone monitoring amplifier

system.

The basis for this high-end development is our proved 120 volts ref-

erence technology based upon our own, handmade operation ampli-

fier. It corresponds to approximately twice that of most modern analog

audio semiconductor technologies. Through such 120 volts circuitry

and processing we reach performance levels far beyond conventional

designs in dynamic range and distortion levels.

Such technical specifications exceed all known analog or digital stan-

dards (please also refer to the chapter “The End of Ear Fatigue” from

page 10).

With And Without Magnifiers

The Phonitor encompasses advantages of both kinds of monitoring

methods: On one hand the analytical headphone monitoring is like

working with an acoustic magnifier but without external room influenc-

es; on the other hand, loudspeaker monitoring forgoes the microscopic

effect, but provides for room ambiance.

Working with the magnifier effect of headphones has the advantage of

safely hearing clicks or similar defects and helps in fine tuning cross-

fades or to judge tonal problems in individual tracks. >

Introduction

10 Phonitor

With And Without Magniers, The End Of Ear Fatigue

Introduction

On loudspeakers such analyses are much more difficult, as such prob-

lems just are not as apparent when one is working without being able

to “zoom in” aurally.

Conversely, loudspeakers provide monitoring with the advantage of

spatial balance in a (definable through placement) stereo width, which

in turn provides the illusion of an acoustic stage.

Traditional headphone reproduction produces one 180-degree stereo

width in the middle of the head, and it is exactly this which creates the

very problematic-to-impossible headphone mixing environment. An es-

sential reason for such unnatural ambiance is the complete separation

of the channels, which does not exist either in natural hearing or in ste-

reo loudspeaker reproduction. This makes it nearly impossible to judge

tonal balance, a stereo image and the phantom center level. Panorama

adjustments as well as related EQ settings that one attempts with

headphones, typically just do not function on loudspeakers.

Moreover, what is often called the “super stereo effect” with head-

phones usually creates a great deal of ear fatigue in the long run. Over

loudspeakers the sound stage is felt in front, while in contrast, when

monitoring through headphones, the stage is present on the left and

on the right – but frontal and rear information is lost.

The End Of Ear Fatigue

Aside from these unnatural headphone ambiance there are further dis-

advantages with fatigue when mixing or listening with headphones.

First, some cans themselves may not be that comfortable to wear...

Moreover, a standard headphone amplifier is often an additional im-

portant reason for premature ear fatigue. Almost without exception,

present-day headphone amplifiers employ comparatively undemand-

ing IC’s. In the best cases they might work with symmetrical voltages of

+/-15 V to +/-18 V, and in less favorable cases, with only a simple supply

of 9 or 12 V from cheaper external “wall-wart“ power supplies.

But the voltage level acts in circuitry much like the cubic inch capacity

to the productive power of a combustion engine: Cubic inch capacity is

replaceable with nothing but more cubic inch capacity – and in the pro-

ductive power of electronics, voltage level functions similarly.

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