PSI Audio Loudspeaker Manuale utente

UANPA10 V2.7 PSI Audio User Manual 1

PSI Audio User Manual

UANPA10 V2.7 PSI Audio User Manual 2

1 INTRODUCTION................................................................................................................................................. 3

2 SAFETY INSTRUCTION.................................................................................................................................... 3

2.1 WARNINGS ....................................................................................................................................................... 3

2.2 SERVICE ........................................................................................................................................................... 4

3 GENERAL OVERVIEW ..................................................................................................................................... 4

3.1 BEFORE YOU START .......................................................................................................................................... 4

3.2 FRONT PANEL DESCRIPTION............................................................................................................................. 5

3.3 REAR PANEL DESCRIPTION............................................................................................................................... 5

4 QUICK START..................................................................................................................................................... 6

5 OPERATION ........................................................................................................................................................ 6

5.1 POWER ON LED (GREEN)................................................................................................................................ 6

5.2 OVERLOAD / OVERHEAT LED (RED)................................................................................................................ 6

5.3 AUDIO SIGNAL INPUT CONNECTOR .................................................................................................................. 7

5.4 LEVEL / INPUT SENSITIVITY POTENTIOMETER .................................................................................................. 7

5.5 ROLL-OFF POTENTIOMETER ............................................................................................................................. 7

5.6 VOLTAGE SELECTOR / MAINS FUSE ................................................................................................................. 7

6 INSTALLATION.................................................................................................................................................. 7

6.1 ENVIRONEMENT ............................................................................................................................................... 7

6.2 ROLL-OFF SIMPLIFIED THEORETICAL VIEW :..................................................................................................... 7

6.3 ROLL-OFF PRACTICAL VIEW : ........................................................................................................................... 7

6.4 MOUNTING ....................................................................................................................................................... 9

6.5 STEREO OPERATION ......................................................................................................................................... 9

6.6 STEREO + SUB OPERATION............................................................................................................................... 9

6.7 MULTI CHANEL 5+1 OPERATION .................................................................................................................... 11

7 TROUBLESHOOTING ..................................................................................................................................... 12

7.1 POWER ON LED DOES NOT LIT. ...................................................................................................................... 12

7.2 UNBALANCED TO BALANCED OPERATION....................................................................................................... 12

7.3 POOR AUDIO QUALITY .................................................................................................................................... 12

7.4 UNEVEN FREQUENCY RESPONSE ..................................................................................................................... 12

8 C.E.CONFORMITY........................................................................................................................................... 12

9 WARRANTY ...................................................................................................................................................... 12

TABLE OF CONTENTS

UANPA10 V2.7 PSI Audio User Manual 3

1 Introduction

Thank you very much, and congratulations on your decision to purchase a professional monitoring

system from PSI Audio.

Following carefully the instructions in this manual will ensure that your loudspeaker system will give you

many years of reliable and trouble free operation.

For the latest information, help or advice, please contact your local PSI Audio representative or PSI Audio

directly.

Relec S.A.

ZI Petits Champs 11 a+b

CH-1400 YVERDON (Switzerland)

Tel : +41 (0)24 426 0420

Tel : +41 (0)24 426 0451

E [email protected]

W www.psiaudio.com

2 Safety Instruction

2.1 Warnings

•Please read and follow the instructions of this manual carefully prior to operation of the

loudspeaker.

•Please do not open the loudspeaker - risk of electric shock inside.

•Make sure not to expose the loudspeaker to any form of liquids. For cleaning purposes use only a

dry cloth. In order to prevent spills, do not place any containers containing liquid on the

loudspeaker. Do not use the speaker close to water as this may create a shock hazard.

•Only use three wire mains cables and connectors with earthling (grounding) according to your

country standard.

•Check your AC voltage and make sure that the voltage setting and fuse on the rear of the chassis

are set correctly.

•Do not operate the speaker in a confined environment (i.e. in a flight case) The rear panel of the

speaker should be open and permit appropriate circulation and ventilation of air for cooling

purposes. Make sure all ventilation openings are free of any obstacles.

This symbol alerts the user to the presence of electrical

power within the product that may be of sufficient

magnitude to constitute a risk of electric shock.

This symbol alerts the user to important operating and

maintenance (servicing) instructions or warnings.

UANPA10 V2.7 PSI Audio User Manual 4

•Do not operate or install this speaker near any kind of heat source.

•Only operate this speaker with accessories specified by PSI Audio.

•For maximum operating safety, the loudspeaker should be used with a three-wire AC power

system. Two-wire operation may cause a potential hazard.

2.2 Service

The loudspeaker contains no user-serviceable parts. All service must be performed by

qualified personnel. The primary fuse must be replaced by exactly the same type and

rating. The unit must not be opened by the user – risk of a severe electric shock.

Servicing is required when :

•the speaker has been damaged in some way, such as when the power-supply cord or plug is

damaged.

•the loudspeaker has suffered from exposure to rain or moisture

•liquid has spilled into the loudspeaker.

•objects have been dropped into the loudspeaker

•the loudspeaker does not work correctly.

Spare part supply :

•For ordering, please contact your authorized dealer, mentioning your loudspeaker model and

serial number (see point 3.3.).

3 General Overview

3.1 Before you start

Special care have been taken in the packaging of your PSI Audio equipment. Before you start to

install it, please check that the following parts are included :

•Loudspeaker

•Individual frequency response diagram

•Data sheet

•PSI AUDIO User Manual (this manual)

•Additional stickers according to model

UANPA10 V2.7 PSI Audio User Manual 5

Power ON LED (Green)

Mains power is present and the speaker is ready

to use.

Voltage Selector / Mains Fuse

Selects AC voltage and fuse value

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

GEFAHR : ELEKTRI SCHER SCHLAG

NICHT ÖFFNEN

LEVEL

ROLL OFF

POWER

INPUT

Model : PSI Audio XX/X

Serial : N° XXXXXX

3.2 Front Panel Description

3.3 Rear Panel Description

Overload / Overheat LED (Red)

according to model

Flashing of the led indicates that the internal

limiter is working.

If the LED works continuously, the amplifier is

operating under overheat conditions.

(for Master series : same behavior, but only one

LED that also turns red when the speaker is in

standby mode)

Audio Signal Input Connector

Female XLR with the following wiring convention :

1 = Chassis (Ground)

2 = + Hot

3 = - Cold

Roll-Off Potentiometer

Aligns the low frequency response to room

conditions.

Level / Input Sensitivity Potentiometer

Audio input signal calibration

Power On / Off Switch

Suggestion for additional logo

lacement

Anti-slide stickers to be placed

underneath the unit.

UANPA10 V2.7 PSI Audio User Manual 6

4 Quick Start

We recommend that you spend some time to set up your monitoring speaker system.

Setting it up naturally takes a certain amount of time. However, in case you need to get started quickly,

please follow the quick set up guide. The rest of this manual will assist you in setting up your loudspeaker

system and calibrate it according to your listening environment.

•Check that the voltage value on the AC power selector is set correctly (according to your local AC

power supply). If this is not the case, it will be necessary to adjust main power with the following

procedure. Carefully squeeze the two latches on either side of the fuse plug and pull the fuse

holder out of its socket. Now replace the fuse for the different voltage setting with the correct value

fuse according to the required voltage. The correct value of the fuse is printed next to the On-Off

switch of your loudspeaker. Pull out the grey plastic cap which holds the fuse and turn it 180° so it

shows the correct voltage setting through the outer window when placed back in its position. Now

you can carefully push the complete fuse holder back in to its place above the mains connector.

•Connect the mains cable with power whilst paying attention to the warnings mentioned under the

chapter safety instructions.

•Verify that no audio signal is been sent to the loudspeaker and turn the power switch to ON. The

green led on the front panel will now illuminate.

•Connect the audio source (line signal) from your mixer, preamplifier or other equipment to the XLR

connector at the rear.

•Turn the Level (input sensitivity) potentiometer fully clockwise.

•Verify that the Roll-Off potentiometer is turned fully clockwise in order to provide a flat frequency

response to start with.

•Set the loudspeaker level potentiometer to the CAL position (CALIBRATED) and fade up the signal

source as required.

•Normal operating conditions will cause the red led to flash occasionally on peaks. We draw your

attention to the fact that this loudspeaker can produce pressure levels which may be harmful. PSI

Audio declines all responsibility for eventual hearing loss caused by the use of their loudspeakers.

5 Operation

5.1 Power ON LED (Green)

The green LED on the front panel shows that the loudspeaker is powered up. In the event that this

LED does not illuminate, verify that the loudspeaker is connected to the AC power outlet and/or

check the fuse.

5.2 Overload / Overheat LED (Red)

The red LED indicates the operation of the internal limiter and during normal operation, the light

flashes when the modulation peak is reaching more than 1 dB level. If the LED flashes regularly, this

means that you are reaching overload conditions and you should reduce the input level.

If the LED stays continuously illuminated, this means that the amplifier is in overheat conditions, and

the components are in risk of damage. Turn off the AC power immediately.

Typical causes of overheat are lack of ventilation. Check that sufficient air flow is available around

your loudspeaker. Close proximity of overheated sources may also cause overheating.

(for Master series : same behavior, but only one LED that also turns red when the speaker is in

standby mode)

UANPA10 V2.7 PSI Audio User Manual 7

5.3 Audio Signal Input Connector

The female XLR connector on the rear panel provides a balanced analogue input with the following

wiring conventions :

1 = Chassis (Ground)

2 = + Hot

3 = - Cold

When using the loudspeaker with unbalanced sources, the following wiring conventions may be used

5.4 Level / Input Sensitivity Potentiometer

The level is continuously variable, the potentiometer controls the gain of a converter whose precision

is greater than 1 dB.

5.5 Roll-Off Potentiometer

See installation section 6

5.6 Voltage Selector / Mains Fuse

See point 1 in the Quick Start section 4.

6 Installation

6.1 Environment

PSI Audio loudspeakers are calibrated to give flat response under free field conditions. The acoustic

environment will naturally influence the overall performances of the loudspeakers.

When using the loudspeaker in the studio environment, the Roll-Off control allows the low frequency

response to be tailored according to the position of the loudspeaker. Placing a speaker in a corner or

near a wall will affect the bass response and this can be compensated by use of the calibration

control.

6.2 Roll-Off simplified theoretical view :

If a sound source is omni-directional and incorporated into a wall, it radiates into a half space. The

generated acoustic pressure is doubled (+ 6 dB) in comparison to free field radiation.

For high frequencies, the wavelengths are shorter than the enclosure. Therefore, the enclosure

determinates the radiation space.

For low frequencies, the wavelengths being longer than the enclosure, it is the positioning and the

material of room partitions which determinates the radiation space.

When a loudspeaker is not used in free field mode, the « Roll Off » calibration must be

applied.

6.3 Roll-Off practical view :

Even in very low frequencies, a monitor is not really omni-directional, and it cannot be completely

incorporated into a partition. Consequently, the acoustic pressure level will not be entirely doubled by

the partition.

RCA/ Chinch

Cable

Shield/Screen

XLR

RCA/ Chinch

Cable

Shield/Screen

XLR

Cooling space :

always make sure that sufficient air

flow is available around your

loudspeaker to prevent overheating.

UANPA10 V2.7 PSI Audio User Manual 8

Roll Off Calibration Simplified theory Practical adjustment

Full space (free standing) 0 dB Cal Figure 1

Half space (wall mounting) -6 dB ∼- 4 dB Figure 2

Quart space (corner mounting) -12 dB ∼- 7 dB Figure 3

Fig 1 – Full space : Roll off @ cal. Point

Fig 2 – Half-space : Roll off @ ~ - 4dB

Fig 3 – Quart-space : Roll off @ ~ - 7dB

UANPA10 V2.7 PSI Audio User Manual 9

6.4 Mounting

•Vertical

•Horizontal

Unscrew the medium/high section panel and turn it to 90 degrees.(as shown below)

6.5 Stereo Operation

The recommended positioning of loudspeaker anathema is an equilateral triangle of 60 degrees, i.e.

the distance of the listener from the loudspeakers will be determined by the distance between the

loudspeaker. The high frequency section should be at ear height or slightly higher. This is valid for

any music listening mode (stereo, multichanel, etc..).

6.6 Stereo + Sub Operation

For music listening, the role of subwoofer is to extend the low frequency response and the maximum

sound pressure level in a linear fashion. The placement of a subwoofer, especially in a small control

room, can be critical. It is recommended that the user takes some time to find the optimum position.

Calibration procedure

The monitor Roll Off is positioned at –10dB.

The subwoofer is placed on the floor.

The distance from the subwoofer to the listener is equal to the distance from the monitor to the

listener (±0.5m).

Because of its complementary response, the largest part of very low frequencies are spread by the

subwoofer.

•Subwoofer level calibration:

The first monitor is temporarily positioned in free standing, and the signal is directly applied.

Level : Cal

Roll Off : Cal

The second monitor and the subwoofer are placed at their normal positions, and the signal is applied

through the subwoofer.

Level : Cal

Roll Off : -10dB

Signal : 70 @ 150 Hz (i.e. cello low note)

UANPA10 V2.7 PSI Audio User Manual 10

•When commuting the first direct monitor or the second together with the subwoofer, the sound level

hearing comparison allows a reliable and objective adjustment (±0.5 dB). When adjusting the

subwoofer level, the two systems should provide the same sound impression.

Stereo & sub system calibration

•The sub level being now calibrated, the signal from the first monitor should go through the sub and

its Roll-Off adjusted @ -10dB

Stereo & sub system in practice

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