Edin Univox P-Loop 2.0 Manual de usuario

User Guide

Univox®P-Loop 2.0

Portable loop case for up to 150 m²

Univox® P-Loop 2.0 Part no 212031

Content

Introduction............................................................................................................................................... 3

Included in the package................................................................................................................... 3

System overview ...................................................................................................................................... 4

Installation and use ................................................................................................................................. 4

Setting up the loop ........................................................................................................................... 4

One turn loop...................................................................................................................................... 4

Figure 8 loop....................................................................................................................................... 4

Connecting mains power ................................................................................................................. 5

Connecting signal source(s) ........................................................................................................... 5

Adjusting input sensitivity ............................................................................................................... 6

Wireless microphone systems........................................................................................................ 6

Adjustment of loop current level................................................................................................... 7

Acoustic ampliﬁcation with an active speaker............................................................................ 7

Tapping the signal............................................................................................................................. 7

Troubleshooting........................................................................................................................................ 8

Safety and warranty.................................................................................................................................9

Maintenance and care............................................................................................................................. 9

Service ........................................................................................................................................................ 9

Technical data.........................................................................................................................................10

Environment............................................................................................................................................10

Measuring devices..................................................................................................................................11

Introduction

Univox® P-Loop 2.0

Thank you for choosing a Univox® product. We hope you will be satisﬁed!

Univox® P-Loop 2.0 is a compact, portable loop system used to enhance speech

intelligibility for hearing aid users with the hearing aid in T-position. The loop system is very

easy to use and can operate in rooms of various sizes up to and including 150 m².

All Univox® ampliﬁers have a very high output current capability resulting in powerful and

secure products fulﬁlling existing standards, IEC 60118-4.

Univox P-Loop 2.0 portable loop case contains a complete portable loop system with a

built-in ampliﬁer with a 35 m loop cable on a dispenser and accessories depending on

which loop solution you have chosen. A 15 m extension cable is also included as well as

the loop test instrument Univox® Listener. Several built-in wireless microphone options are

available. The microphone level is preset if you have bought a P-Loop 2.0 with two wireless

microphones. Please refer to the separate Okayo user guides with addendum for a more

detailed instruction of how to set levels of microphones and ampliﬁer.

We hope that the product will meet your highest expectations!

Included in the package:

• P-Loop 2.0 with built-in loop ampliﬁer

• Loop cable bobin with 35 m cable

• Loop cable extension, 15 m

• Univox® Listener test instrument with batteries

• DC-adapter for connection to 12/24 V batteries

• 2-pin power cord

• Instruction manual

If you have purchased P-Loop 2.0 with a wireless microphone system from

Okayo:

• EJ-702DR Plus wireless receiver

• EJ-701TM Plus handheld transmitter and/or EJ-7XT Plus pocket transmitter with

headset microphone

• HDC-702 or HDC-707 charging stations with PSU or charging cable for EJ-701TM Plus

handheld transmitter

• Rechargeable batteries

• Instruction manual

System overview

Installation and use

Setting up the loop

Place the case anywhere along the perimeter of the intended loop. If you do not have

access to a power extension cord, make sure you place the case close enough to the power

outlet for the included power cord to reach. Pull out the loop cable from its dispenser and

place it around the area that you want covered. There is no need to pull out more cable

from the dispenser than is required. Connect both ends of the cable to the ampliﬁer’s loop

terminal (8). If needed there is a 15 m extension cable, making the maximum coverable

area 150 m²

Note. Construction metal can aﬀect the hearing loop to the extent that the loop area needs

to be reduced, alternatively place the cable in a ﬁgure 8.

23 41 75 6 8

Mic Out

110-240V AC

PUSH PUSH

Line

P-Loop 2.0

Portable loop case

Line

www.univox.eu

12-24V DC

11 12

1. In – Green LED level in XLR Mic/Line

2. Mic – balanced XLR, 9-21 VDC phantom power

3. Line – balanced XLR

4. Level controls for XLR inputs

5. Line – line in, unbalanced RCA

6. Out – line out, unbalanced RCA

7. Loop current control

8. Loop cable connection 6.35 mm

9. Blue LED loop current indication

10. On – yellow LED mains

11. 110-240 VAC – mains connection

12. 12-24 VDC – DC connection (DC adapter)

One-turn loop Figure 8 loop

Connecting mains power

Connect the mains cable to the socket marked 110-240 VAC (11) on the ampliﬁer and to

the power outlet. If correctly connected the yellow LED (10) will light up.

If P-Loop 2.0 is used in an environment with a DC voltage source (eg 24 VDC on board a

bus), the voltage source should instead be connected to the ampliﬁer’s 12-24 VDC voltage

input (12) with the included DC adapter.

Warning! Be careful not to close the lid of the bag and pinch and damage the

connection cord. Damaged connection cable can lead to a risk of the metal parts of

the bag becoming live! Damaged connection cord must be replaced immediately.

Contact the point of sale to get the correct replacement cord.

Connecting signal source(s)

There are three diﬀerent audio inputs:

• XLR Mic input (2), microphone sensitivity with 9-21 V phantom power

• XLR Line input (3), line sensitivity

• RCA Line input (5), line sensitivity

Wired electret microphones are always connected to the microphone input Mic (2), the

general sensitivity of which is already set correctly for microphones. It also has a built-in

phantom power to the microphone (9-21 V power source dependant).

• 230 V=21 V phantom power

• 12 V=9.7 V phantom power

• 24 V=21.4 V phantom power

Balanced sound sources, e.g. a mixer table or ampliﬁer, is connected to the balanced XLR

input Line (3). Both XLR inputs have red potentiometers for ﬁne-tuning the input level (see

Adjusting the input sensitivity p.5).

Unbalanced sound sources, e.g. a computer or a CD / MP3 player, is connected to the RCA

input Line (5). There is no potentiometer for ﬁne adjustment of the input level at the input

and adjustment can therefore not be made in the ampliﬁer. Instead, adjust the level of the

signal by adjusting the volume control of the audio source until In (1) lights up.

Adjusting input sensitivity

Set all adjustments to the minimum position (counter-clockwise). Make sure that all

connected audio sources except for the one being adjusted are turned oﬀ. Turn the signal

source on. If you are adjusting a microphone, make sure that someone is speaking into it. If

another type of source is being adjusted, make sure that program material is playing.

Slowly adjust the sensitivity by turning the knob (3) clockwise until the In LED (4) lights up.

The sensitivity adjustment should be based on the weakest signal, i.e. when adjusting for a

microphone the weakest signal is the weakest voice that will use the microphone. Do not

increase the level beyond that the LED just lights up. If the level is too high there is a risk

of self-oscillation or distorsion and feedback.

Note. When adjusting the RCA line input (5), adjust level on the source unit.

Wireless microphone systems

If you have bought P-Loop 2.0 with a wireless microphone system from Okayo, you can

read more in the enclosed user manual.

Note. The EJ-701/702-DR Plus wireless receiver is connected to and powered by the built-

in ampliﬁer directly via pre-installed cables. None of the three inputs on the top of the

ampliﬁer is therefore used. This means that it is possible to connect a maximum of 5 signal

sources directly to P-Loop 2.0.

If you want to use an EJ-701TM Plus handheld transmitter/microphone and an EJ-7XT Plus

pocket transmitter simultaneously, it is important that you set up the system in the correct

order. The sensitivity of the hand-held transmitter EJ-701TM Plus is deliberately low so

that the hand-held transmitter can be used in front of loudspeakers without any feedback.

Because the high diﬀerence in sensitivity to the EJ-7XT Plus pocket transmitter, the system

must be set up in the following order:

1. Start by setting the EJ-701TM Plus sensitivity control to the ”HI” position

2. Set the level control (volume knob) in the corresponding receiver module in

maximum position

3. Adjust the output level (loop current) to the normal level (see Adjusting the output

current of the loop current p.7)

4. Now the entire chain transmitter - receiver - ampliﬁer is set correctly for the hand-

held transmitter EJ-701TM Plus

5. Set the pocket transmitter by ﬁrst setting the sensitivity control on one side of the

pocket transmitter to the ”LOW” position

6. Set the level control (volume knob) in the corresponding receiver module to 12

o’clock

7. If the sound level of the pocket transmitter in the loop is perceived as too low, the

level must be adjusted, ﬁrst with the level control of the receiver module and if this

is not suﬃcient, the sensitivity control on one side of the pocket transmitter must

be set to ”MID”

Adjusting loop current level

Adjust the loop current level with the knob marked (6). The blue LED indicator (9)

indicates when the loop is transmitting.

Use the testing device Univox® Listener (included) to adjust the loop current level. Please

consult the included user guide for instructions on how to use the device.

Acoustic ampliﬁcation with an active speaker

In rooms without a loudspeaker system, it may be advisable to use a portable, active

speaker with built in wireless receivers to also acoustically enhance the sound. A slight

acoustic ampliﬁcation is oen welcomed even in smaller rooms, especially when listening

for a long period of time, and it is perceived to be more natural by both lecturers and

listeners if the sound is acoustically ampliﬁed when speaking in a microphone.

The Okayo GPA-670BD1 is a small, light-weight and ﬂexible active speaker (with built-

in ampliﬁer) especially suited for enhanced speech intelligibility. The GPA-670BD1 has

a rechargeable lithium ion battery that provides 4-6 hours of operation, but can also be

used connected to a wall outlet. The speaker has the same type of dual wireless receiver

module as the diversity receiver in the P-Loop 2.0 case. This means that the sound from

the wireless microphones is transmitted simultaneously to the loop and the loudspeaker.

No cables are necessary.

It is recommended to use a tripod ﬂoor stand for easy and ﬂexible placement of the

loudspeaker. If the loudspeaker is set up at the back of the room and directed towards

the speaker, those who are located in the back of the room (and thus farther away from

the speaker) get a helping acoustic boost, while those sat closer to the speaker will hear

acoustically anyway. A larger distance between the microphone and the loudspeaker

minimizes the risk of feedback.

Tapping the signal

The signal from the ampliﬁer can be tapped to an external system from the RCA out (7).

Please consider the risk of feedback if the system includes loudspeakers.

Troubleshooting

Symptoms Possible cause Solution

Yellow LED ”On” does not light up The power cord is not correctly

connected

The power cord is damaged

The built-in PSU is damaged

Ensure correct connection in the

P-Loop and in the wall socket

Replace the power cord

immediately

Contact the point of sale for repair

Green LED In lights up, but blue

LED does not light up

No or too weak current in the loop

The loop cable is not properly

connected to the ampliﬁer

Adjust the loop level output level

with the knob

Check that the 6.35 mm

connectors of the loop cable are

properly connected to the loop

output of the ampliﬁer

Neither green LED nor blue LED

is lit.

No input signal

The input signal too low

Check that any signal source is

connected properly

Adjust the level of the signal

source until the green LED In

lights up

Distorted/poor sound quality Too high level of signal source

Too wide a distance between the

loop lengths

The listener is too far from the

loop

Adjust the level of the signal

source until the green LED In goes

out. Then adjust the level until the

green LED lights up again

Try to reduce the area on the loop,

or place the loop in a ﬁgure eight

Position the listener closer to the

loop

Use the Univox® Listener to control the sound quality and level of the loop.

Safety/warranty

We provide a 2-year material and factory warranty (calculated from the date of receipt) on

Univox® P-Loop 2.0.

The warranty does not cover faults that have arisen through intervention, negligence,

incorrect connection/installation of the product or force majeure.

If a warranty claim is approved, repair or replacement is performed (Bo Edin AB decides

which) at no cost to the buyer.

Bo Edin AB shall not be held liable for interference in radio or TV equipment, and/or for

direct, unintentional or subsequent damage or loss to any person or unit, if the equipment

has been installed by unqualiﬁed and/or unauthorized personnel and/or if installation

instructions in the product installation guide have not been strictly followed.

Maintenance and care

Under normal circumstances Univox® loop ampliﬁers do not need any special maintenance.

Should the unit become dirty, wipe it with a clean damp cloth. Do not use solvent or strong

detergents.

Service

Should the product/system not work aer having made the product test as described

above, please contact the local distributor of the product for further instructions. If the

product should be sent to Bo Edin AB, please enclose a ﬁlled Service Form, avaliable at

www.univox.eu/support.

Technical data

Please see separate datasheets for Univox® P-Loop 2.0, Univox® Listener and Okayo

wireless microphone systems.

For additional information, please refer to product data sheet/brochure and CE certiﬁcate

which can be downloaded from www.univox.eu, Downloads. If required other technical

documents can be ordered from [email protected].

Environment

To prevent possible harm to the environment and human health, please dispose of the

product responsibly by following statutory disposal regulations.

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