Contacta V Series, V7, V12a, V14 Installation & User Manual

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Page 1

V7 / V12a / V14

Installation &

User Guide

May 2018

Hearing Loop Drivers

Page 2

Contents

Product Overview Components Connections Suitable Cable Lengths Start-Up Tests Controls Hearing Loop Setup Troubleshooting

Technical Specications

Standards

3 4-5 6-7 8-10 11 12-20 21-26 27 28-30 31

Contacta has a policy of continuous product development, therefore small specication changes

may not be reected in this manual. Images, labels, packaging, accessories and product colours

are subject to change without notice.

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Product Overview

Our highly eicient and compact V7, V12a and V14 hearing loop drivers are suitable for smaller facilities and venues.

The V7 and V14 are constant current hearing loop drivers which power

hearing loops utilising a single output. The V12a is a constant current

dual output hearing loop driver with integral phase shifter for phased

array conguration.

These hearing loop drivers have Class-D amplier output stages and an audio subsystem built around an advanced DSP core. Combined with a powerful CPU that ensures peak performance, they use cutting edge technology proven in the pro audio world to achieve life-like speech and rst-class music reproduction.

Note: For large area hearing loop installation instructions, consult the

Large Area Hearing Loop Installation Guide.

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Components

1. Rubber Feet x4

2. 5.08mm Euro-Block Connector

3. 3.81mm Euro-Block Connector x2

4. Signage

5. V7 Hearing Loop Driver

6. Installation & User Guide

7. Power Supply [PS-55]

8. IEC Power Lead

1. Rubber Feet x4

2. 5.08mm Euro-Block Connector x2

3. 3.81mm Euro-Block Connector x2

4. Signage

5. V12a Hearing Loop Driver

6. Installation & User Guide

7. Power Supply [PS-60]

8. IEC Power Lead

V12a

Plug type varies by country.

Page 5

Plug type varies by country.

Cable & Equipment: A length of loop cable determined by the loop

design is also required. Hearing loop drivers also require ancillary equipment for audio feeds, such as a microphone or sound system.

1. Rubber Feet x4

2. 5.08mm Euro-Block Connector

3. 3.81mm Euro-Block Connector x2

4. Signage

5. V14 Hearing Loop Driver

6. Installation & User Guide

7. Power Supply [PS-60]

8. IEC Power Lead

V14

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1. Microphone Input - 3.81mm Euro-block balanced microphone input (12V phantom power via 680Ω).

2. Line Input 1 - 3.81mm Euro-block balanced line input/feedthrough.

3. Line Input 2 - XLR balanced line input/feedthrough.

4. Power Supply Input - *V7 DC Power Input, 2.1mm 14Vdc 2.14A

**V12a DC Power Input, 2.1mm 24Vdc 4.17A ***V14 DC Power Input, 2.1mm 24Vdc 4.17A Caution: Use only the provided Power Supply.

5. Loop A Output - 5.08mm Euro-block.

6. Loop B Output - 5.08mm Euro-block [V12a only].

Rear Panel Connections

Connections

1 2

Note: Only connect to one Line Input at a time.

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Connection Examples

XLR to XLR (line)

TRS to XLR (line)

Unbalanced to XLR

XLR to Euroblock (balanced)

Unbalanced to Euroblock

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Suitable Cable Lengths

The tables in this section show the approximate maximum cable lengths for diering maximum required currents.

Loop impedance (at 1.6kHz) should be less than:

Voltage capability of the driver (V7: 7.5Vrms, V12a: 12Vrms, V14: 14Vrms) divided by the required current.

This achieves 400mA/m eld strength at 1kHz.

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

0.5mm 85m 56m 42m 34m

1mm 133m 89m 66m 53m

1.5mm 155m 103m 77m 62m

2.5mm 173m 115m 86m 69m

Flat Cable (Width)

10mm 101m 67m 50m 40m

12.5mm 192m 128m 96m 77m

25mm 255m 170m 127m 102m

V7 (Metric)

V7 (Imperial)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

18AWG 438ft 292ft 219ft 175ft

14AWG 593ft 395ft 296ft 237ft

Flat Cable (Width)

18AWG (equivalent)

505ft 336ft 252ft 202ft

14AWG (equivalent)

711ft 474ft 355ft 284ft

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Example of finding suitable cable length using V12a:

A loop requiring 110m of cable needs 3A at 1kHz to achieve the required eld strength.

If there are two cables in stock 0.5mm round and 1.5mm round, by looking at the above table we can see that the maximum length at 3A for the 0.5mm cable is 68m.

Using this cable will cause the driver output to clip at 1.6kHz when driven at 3A. Using the 1.5mm cable will allow the 3A to be driven at

1.6kHz without clipping.

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

0.5mm 136m 68m 68m 54m

1mm 214m 107m 107m 85m

1.5mm 248m 124m 124m 99m

2.5mm 277m 138m 138m 110m

Flat Cable (Width)

10mm 163m 81m 81m 65m

12.5mm 308m 154m 154m 123m

25mm 408m 204m 204m 163m

V12a (Metric)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

18AWG 701ft 467ft 350ft 280ft

14AWG 949ft 633ft 484ft 379ft

Flat Cable (Width)

18AWG (equivalent)

808ft 539ft 404ft 323ft

14AWG (equivalent)

1138ft 759ft 469ft 455ft

V12a (Imperial)

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Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

1mm 242m 161m 121m 97m

1.5mm 284m 189m 142m 114m

2.5mm 319m 213m 160m 128m

Flat Cable (Width)

10mm 180m 120m 90m 72m

12.5mm 340m 226m 170m 136m

25mm 450m 300m 225m 180m

V14 (Metric)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

18AWG 746ft 498ft 373ft 299ft

14AWG 997ft 664ft 498ft 399ft

Flat Cable (Width)

18AWG (equivalent)

840ft 560ft 420ft 336ft

14AWG (equivalent)

1327ft 885ft 663ft 531ft

V14 (Imperial)

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Start-Up Tests

V Series drivers perform a series of tests when powered on, causing a

number of indications to appear on the display screen during start-up.

The meanings of these indications are as follows:

Indicator Meaning Remedy

V7 and V14: Loop Good

V12a: Loop A Good Loop B Good

Hearing loop(s) is/are correctly

connected to the driver.

None required.

V7 and V14: Loop Open Fault

V12a: Loop A Open Fault Loop B Open Fault

Hearing loop(s) is/are improperly

connected to the driver.

An open-circuit loop will not damage the driver, and start-up

will continue to the main menu.

Ensure that the loop(s) is

properly connected to the

driver. The loop current

indication in normal operation may be used to

conrm the connections.

V7 and V14: Loop Ground Fault

V12a: Loop A Ground Fault Loop B Ground Fault

A ground fault with the hearing

loop(s) has been found.

The driver will halt operation with this message displayed on screen, as such a fault would cause stress to the driver were

normal operation to continue.

Switch o the driver and carefully check the loop(s) for shorts to ground. Rectify the

faults and re-apply power to

the driver.

Incorrect Power The power input supply voltage

from the mains power supply is

incorrect.

The driver will halt operation with this message displayed on screen, as such a fault would cause stress to the driver were it

to continue to normal operation.

Switch o the driver and

connect the power supply which was provided with the

driver. If this is not available,

contact your distributor to

order a new power supply.

Please note if using V12a: If connecting only one loop to a V12a, whichever loop connection

has not been used (either Loop A or Loop B) will show as an “Open Fault” as default. This is the correct display for operation with only one loop; continue as normal.

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Front Panel Overview

Controls

1. Clip Status Light - When lit, this status LED indicates the signal on

the hearing loop output is clipping (see Troubleshooting on page

27 for appropriate solutions).

2. Display Screen - Indicates the status of the Loop Output, displays menu and adjustment options.

3. Control Dial - Used for unlocking and making adjustments.

V7 and V14

1. Clip Status Light - When lit, this status LED indicates the signal

on Hearing Loop A is clipping (see Troubleshooting on page 27 for

appropriate solutions).

2. Clip Status Light - When lit, this status LED indicates the signal on Hearing Loop B is clipping (see Troubleshooting on page 27 for appropriate solutions).

3. Display Screen - Indicates the status of the Loop Output, displays menu and adjustment options.

4. Control Dial - Used for unlocking and making adjustments.

V12a

1 2

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The hearing loop driver will power up in Output Current Display Mode

and will be locked from entering Adjustment Mode.

Unlock the Driver

1. To unlock the hearing loop driver, press the control dial, and when prompted “Unlock driver?” click “Yes.”

2. Enter the passcode 2239: a. Rotate the control clockwise to select the rst required digit. b. Press the control dial in to select the digit. c. Repeat steps (a) and (b) until all the digits have been selected.

Note: Entering the wrong code returns the hearing loop driver to the lock screen.

Additional Functions and Codes

1. To access one of the additional functions available, press the control dial, and when prompted “Unlock driver?” click “Yes.”

2. Enter one of the following passcodes:

• 1010: Disable the display backlight 10 minute auto switch-o.

This setting is remembered through power cycles.

• 1011: Enable the display backlight 10 minute auto switch-o.

This setting is remembered through power cycles.

• 9999: Disable the auto re-lock (timeout). This is not

remembered through power cycles.

• 8888: Restore all factory defaults and restart the driver.

Locking/Unlocking the Hearing Loop Driver

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Modes

Main Menu

After being unlocked, the hearing loop driver will display the main menu. This is indicated by up and down arrows on the display screen.

V7 and V14

1. Loop Output

2. Line Input

3. Phantom Power

4. Microphone Input

5. Current Output (no adjustment)

6. High-Frequency Compensation

V12a

1. Loop Output

2. Line Input

3. Phantom Power

4. Microphone Input

5. Loop B Trim Adjustment

6. High-Frequency Compensation

When in this mode, rotating the hearing loop driver’s control dial

clockwise will move the screen to the next menu item and rotating the dial anti-clockwise will move it to the previous menu item.

The menu options are as follows:

Adjustment Mode

Press the control dial in to enter Adjustment Mode; the arrows on the

display screen will move to a left and right position.

Rotate the dial clockwise or anti-clockwise to make the adjustment. Press the control dial in to conrm the selection and return to the main menu.

If the control dial is not used for 120 seconds when in Adjustment Mode the hearing loop driver will revert to the main menu, with Loop

Output as the default screen.

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V7 and V14 Loop Output V12a Loop Output

V7 and V14 Loop Output: Adjustment Mode V12a Loop Output: Adjustment Mode

Adjustments

Loop Output

In Adjustment Mode, the real-time output current is displayed on the

top line in 0.5A steps. The bottom line indicates the strength of the loop output level adjustment.

To alter the loop output level, enter Adjustment Mode:

• To increase the loop output level, rotate the control dial clockwise.

• To decrease the loop output level, rotate the control dial

anti-clockwise.

• Press the control dial once to conrm the selection and return to the main menu.

The hearing loop driver’s Loop Output section displays the real-time

output current in 0.5A steps.

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Adjustments

It is recommended that at least 5 blocks in the adjustment block are lled (see the above image for an example).

Enter Adjustment Mode, and alter the line input level displayed on the bar until the text displays ‘Good’:

• To increase the line input level, rotate the control dial clockwise.

• To decrease the line input level, rotate the control dial

anti-clockwise.

• Press the control dial once to conrm the selection and return to the main menu.

Line Input

The hearing loop driver’s Line Input section displays the line input

level within a range of 47dB.

The text on the display indicates if the correct line level has been achieved:

• “Low” indicates the line level is too low for the automatic gain control to operate.

• “Good” indicates the line level is at an optimum level for the automatic gain control to operate.

• “High” indicates the line level is too high and signal clipping may occur. Signal clipping will also be shown by the LED.

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Adjustments

Phantom Power

Rotating the control dial clockwise or anti-clockwise in Adjustment Mode will toggle the phantom power on or o. Press the control dial once to conrm the selection and return to the main menu.

Phantom power for a connected microphone is set o as the default setting.

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It is recommended that at least 5 blocks in the adjustment block are lled (see the above image for an example).

Enter Adjustment Mode and alter the microphone input level displayed on the bar until the text displays ‘Good’:

• To increase the microphone input level, rotate the control dial

clockwise.

• To decrease the microphone input level, rotate the control dial

anti-clockwise.

• Press the control dial once to conrm the selection and return to the main menu.

The hearing loop driver’s Microphone Input section displays the

microphone input level within a range of 47dB.

The top line of the display indicates if the correct microphone input

level has been achieved:

• “Low” indicates the microphone level is too low for the automatic gain control to operate.

• “Good” indicates the microphone level is at an optimum level for the automatic gain control to operate.

• “High” indicates the microphone level is too high and signal clipping may occur. Signal clipping will also be shown by the LED.

Adjustments

Microphone Input

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V12a Only: Loop Trim

When using a V12a, the hearing loop driver’s Loop Trim function allows

Loop B’s output to be adjusted relative to Loop A’s output.

Please note: This section is only available on the V12a. The equivalent V7 and V14 menu displays Current Output, to which adjustments can

be made using the Loop Output section (see page 15).

When in the Loop Trim section, adjustments are made in 1dB steps. The measured loop output current is displayed in amps RMS (accurate for sine signals).

Adjustments

Enter Adjustment Mode to alter “Loop B Trim” relative to “Loop A”.

• To increase the Loop B Trim level, rotate the control dial clockwise.

• To decrease the Loop B Trim level, rotate the control dial

anti-clockwise.

• Press the control dial once to conrm the selection and return to the main menu.

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There are 7 levels of high-frequency compensation available to adjust

for metal loss. Your hearing loop driver will have high-frequency compensation turned to the lowest setting as its default.

Adjustments

To alter the high frequency compensation level, enter Adjustment

Mode:

• To increase the high-frequency compensation level, rotate the

control dial clockwise.

• To decrease the high-frequency compensation level, rotate the

control dial anti-clockwise.

• Press the control dial once to conrm the selection and return to the main menu.

To calculate the correct high-frequency compensation level, refer to

Hearing Loop Setup on page 21.

High-Frequency Compensation

Page 21

• TSG - Contacta Test Signal Generator (TSG1)

• FSM - Contacta Field Strength Meter (IL-CONTACTA-FSM)

• Tripod or similar for mounting the FSM is recommended

• ‘Compliance Certicate’ document

To ensure optimal performance of a V7, V12a or V14 hearing loop

driver, set-up should be performed in following order:

Step 1: Background Noise Level (see page 22) Step 2: Metal Loss (see pages 22-23) Step 3: Output Level and Clipping (see page 23-24) Step 4: Field Uniformity (see page 24-25) Step 5: Final Output Level Adjustment (see page 25) Step 6: Input Signal Level Adjustment (see page 25)

Set-Up

Required for Set-Up

Note:

Throughout set-up, record values on the provided Compliance

Certicate document whenever you see the following icon:

The Compliance Certicate document conrms compliance with IEC-60118:4 if your values are within acceptable levels.

It is highly recommended that you retain a copy of the completed

Compliance Certicate document for your records and provide a copy to the relevant facilities manager.

Page 22

Step 2: Metal Loss

1. Set up the FSM, ensuring that the two vertical arrows in the top-right corner of the device are placed at the correct height:

• 1.2 metres (3’ 9”) for seated user.

• 1.7 metres (5’ 6”) for standing users.

A tripod or similar for mounting the FSM is recommended.

2. Connect the TSG to the line input of the hearing loop driver.

Step 1: Background Noise Level

This test should be performed prior to loop installation.

1. Set up the FSM, ensuring that the two vertical arrows in the top-right corner of the device are placed at the correct height:

• 1.2 metres (3’ 9”) for seated user.

• 1.7 metres (5’ 6”) for standing users.

A tripod or similar for mounting the FSM is recommended.

2. Any lights or equipment normally active in the surrounding area should be turned on to ensure an accurate testing environment.

3. Set the FSM to the Background Noise mode – “A-weighted”.

4. Measure and note the background noise level throughout the looped area on the Compliance Certicate document.

5. Listen to the loop through the FSM (A-weighted) or a loop listener (A-weighted). Note and demonstrate any interference to the customer which may not be heard through a hearing instrument.

6. Background magnetic noise must be between -32dB and -60dB. If the readings noted pass the Compliance Certicate document’s requirements, move on to Step 2: Metal Loss.

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Step 3: Output Level and Clipping

Note: This test should be performed as briey as possible.

1. Set the TSG to the 1kHz setting.

2. Set the FSM to the RMS/Peak A-Weighted mode.

3. Adjust the drive level to achieve 2 amps of output current.

4. Measure the eld strength. Achieve 0dB by using the FSM’s indicated eld strength to work out the extra current required. For example: if the measured eld strength on the FSM is (A-RMS)

-6dB then 6dB (2X) extra current will be required to achieve 0dB (see Note 1 on page 26).

Note: If more than 7.9dB is required to achieve 0dB, a dierent

3. Set the TSG to the 1kHz setting.

4. Set the FSM to the Third Octave F= 1000Hz setting.

5. Adjust the line level until only the rst orange LED is turned on.

6. Adjust the drive level to achieve 2 amps of output current, as indicated by the driver LEDs.

7. Set the TSG to the pink noise setting and record the value measured by the FSM.

8. Set the FSM to the Third Octave F= 100Hz setting and record the value measured.

9. Set the FSM to the Third Octave F= 5000Hz setting and record the value measured.

10. If the dierence between the values measured at 1000Hz and 5000Hz is less than 3dB, record the results and move on to Step 3: Output Level and Clipping. If the dierence is higher than 3dB, move on to step 11.

11. Increase the HF comp and repeat steps 3 to 10.

Page 24

loop design or more powerful driver is required. This is potentially

due to metal loss.

5. Briey alter the current to the desired level. For instance, the example in step 4 requires 4 amps of current.

6. The eld strength will now be 0dB +/- 1dB.

7. Quickly record the current required to achieve 0dB eld strength. Now switch the TSG to 1.6kHz.

8. Conrm that the Loop A and Loop B Clip LEDs remain unlit.

10. If the driver’s front panel Clip LEDs remain unlit, return the TSG to 1kHz and reduce output current to 2 amps move on to Step 4: Field Uniformity.

If the driver’s front panel Clip LEDs are lit, the driver is clipping.

This means the loop connected is too long, and therefore:

1. The system is not IEC60118-4 compliant.

2. The sound will be distorted.

3. The driver may be susceptible to damage and warranty voided.

Perform one of the following solutions and repeat until there is no

clipping:

1. Reduce the loop current,

2. Reduce the length of the loop,

3. Use a higher diameter of at cable,

4. Try a two-turn loop,

5. Use a higher voltage driver.

Step 4: Field Uniformity

1. Set up the FSM. Ensure that the two vertical arrows in the top-right corner of the FSM are placed at the correct height:

• 1.2 metres (3’ 9”) for seated user.

• 1.7 metres (5’ 6”) for standing users.

A tripod or similar for mounting the FSM is recommended.

Page 25

Step 5: Final Output Level Adjustment

1. Set the TSG to 1kHz.

2. Adjust the output current to the level recorded in Step 3: Output Level and Clipping (7) on page 24. Once the current is set, disconnect the TSG.

Step 6: Input Signal Level Adjustment

1. Connect the system signal source.

2. Adjust the input level (line/mic) level until “Good” is displayed on audio peaks.

3. The system is now set up.

2. Reduce the loop output current to 2 amps.

3. Set the FSM to the RMS/Peak A-Weighted mode and record the value measured by the FSM in the centre of the loop.

4. Move the FSM to other user positions within the looped area and record the values measured by the FSM.

5. The dierences measured in other positions should not be greater than +/- 3dB of that measured in the rst position.

6. Repeat steps 3 to 5 to create a suitable map of the area looped.

Page 26

Note 1:

When adjusting the output current, if a level of 2.5 amps is reached

and yet the field strength is still below -6dB, the correct eld strength will not be achieved.

This is caused by either an incorrect loop design or installation, more

metal loss than expected or an incorrectly specied driver.

There is no need to go higher than +0dB ARMS.

Measured Field

Strength

Output current that

will achieve 0dB

Steps to

increase Drive

Steps to

decrease Drive

6.00dB 1.00A 6

5.00dB 1.12A 5

4.00dB 1.26A 4

3.00dB 1.42A 3

2.00dB 1.59A 2

1.00dB 1.78A 1

.00dB 2.00A 0 0

-1.00dB 2.24A 1

-2.00dB 2.52A 2

-3.00dB 2.83A 3

-4.00dB 3.17A 4

-5.00dB 3.56A 5

-6.00dB 3.99A 6

-7.00dB 4.48A 7

-8.00dB 5.02A 8

-9.00dB 5.64A 9

-10.00dB 6.32A 10

-11.00dB 7.10A 11

-12.00dB 7.96A 12

-13.00dB 8.93A 13

-14.00dB 10.02A 14

Adjustment to drive current/level required based on the measured field strength:

Page 27

Troubleshooting

Please contact your distributor (or Contacta if appropriate) if you are experiencing technical diiculties with the product.

Symptom Possible Fault Action

The driver does not turn on. 1) Mains power is absent.

2) Internal failure.

1) Check mains power.

2) Seek assistance.

Interference (buzzing/

whistling/hissing) is heard

through induction loop.

1) Bad input signals.

2) Internal failure.

1) Power o the hearing loop driver and conrm

that interference isn’t from

external origin.

2) Disconnect input signals. If sound disappears, check inputs.

The driver is excessively hot to touch.

1) Large amount of mains hum

present on input.

2) Internal failure.

1) Check input signal source.

2) Incorrect hearing loop

driver being used.

The loop output level

indicates current is owing but I hear nothing in the loop.

1) Shorted feeder cable.

2) Loop listener is not

working or being used too far from loop.

1) Check feeder cable,

although the hearing loop driver will usually refuse to

tune to shorted feeder.

2) Check listener and location.

The sound is distorted. 1) Input level has been turned

up too high for signal level at

input.

2) Input signal is distorted.

3) Output signal is clipping.

1) Reduce input level setting.

2) Check signal source.

3) Refer to “The Clipping Status Lights are lit” below.

The Clipping Status Lights

are lit.

The connected hearing loop is

too long.

1) Reduce the length of the loop.

2) Use a larger diameter

cable.

3) Create a two-turn loop.

4) Use a higher voltage driver.

Page 28

Technical Specication

Power

2.1mm 30W 14Vdc 2.14A via External PSU (PS-55)

Class 6 External PSU (100V -240V AC 50Hz-60Hz)

Inputs

1 X Line XLR or 3.81mm Euro-block [optimised for -10dBV to 0dBv]

1 X Microphone (12V phantom power via 680Ω) [optimised for levels above -45dBv]

Output Characteristics

Output Voltage: 7.5Vrms (21.21Vpk-pk) @ 5Arms (14.14Apk-pk)

see notes 1 and 2

Output Current: 5Arms (14.14Apk-pk) up to 300 seconds Loop Connector: 5.08mm Euro-block

Audio system

Frequency Response: 80Hz to 6.5kHz Distortion: THD+N <1% (-40dB) AGC: Peak detecting HF Comp: 7 optimised stages

Note 1: Z=1.4Ω (133uH +0.685Ω @ 1.6kHz) Note 2: < 1% (-40dB) distortion

Display & Control

Display: LED Backlit LCD display Control: Single rotary control

Fault Monitoring and Protection

Main Display: Open circuit loop (DCR measurement)

Loop ground fault

Front Panel LED: Output voltage clipping Cooling: Internal heatsinks with thermal protection

Physical

Height: 42mm (1.65”) Depth: 132mm (5.20”) [150mm (5.90”) including XLR and control knob] Width: 198mm (7.80”) Weight: 938g (2.06lbs)

V7:

Page 29

Power

2.1mm 100W 24Vdc 4.17A via External PSU (PS-60)

Class 6 External PSU (100V -240V AC 50Hz-60Hz)

Inputs

1 X Line XLR or 3.81mm Euro-block [optimised for -10dBV to 0dBv]

1 X Microphone (12V phantom power via 680Ω) [optimised for levels above -45dBv]

Output Characteristics

Output Voltage: 12Vrms (33.94Vpk-pk) @ 5Arms (14.14Apk-pk)

see notes 1 and 2

Output Current: 5Arms (14.14Apk-pk) up to 300 seconds Loop Connector: 5.08mm Euro-block

Audio system

Frequency Response: 80Hz to 6.5kHz Distortion: THD+N <0.3% (-50.5dB) Full current both outputs driven AGC: Peak detecting HF Comp: 7 optimised stages

Note 1: Z=2.4Ω (212uH +1.096Ω @ 1.6kHz), Note 2: 1% (-40dB) distortion

Display & Control

Display: LED Backlit LCD display Control: Single rotary control

Fault Monitoring and Protection

Main Display: Open circuit loop (DCR measurement)

Loop ground fault

Front Panel LED: Output voltage clipping Cooling: Internal heatsinks with thermal protection

Physical

Height: 42mm (1.65”) Depth: 132mm (5.20”) [150mm (5.90”) including XLR and control knob] Width: 198mm (7.80”) Weight: 978g (2.15lbs)

Technical Specication

V12a:

Page 30

V14:

Technical Specication

Power

2.1mm 100W 24Vdc 4.17A via External PSU (PS-60)

Class 6 External PSU (100V -240V AC 50Hz-60Hz)

Inputs

1 X Line XLR or 3.81mm Euro-block [optimised for -10dBV to 0dBv]

1 X Microphone (12V phantom power via 680Ω) [optimised for levels above -45dBv]

Output Characteristics

Output Voltage: 14Vrms (33.94Vpk-pk) @ 5Arms (14.14Apk-pk)

see notes 1 and 2

Output Current: 5Arms (14.14Apk-pk) up to 300 seconds Loop Connector: 5.08mm Euro-block

Audio system

Frequency Response: 80Hz to 6.5kHz Distortion: THD+N <1% (-40dB) AGC: Peak detecting HF Comp: 7 optimised stages

Note 1: Z=2.8Ω (214.7uH +1.27Ω @ 1.6kHz), Note 2: 1% (-40dB) distortion

Display & Control

Display: LED Backlit LCD display Control: Single rotary control

Fault Monitoring and Protection

Main Display: Open circuit loop (DCR measurement)

Loop ground fault

Front Panel LED: Output voltage clipping Cooling: Internal heatsinks with thermal protection

Physical

Height: 42mm (1.65”) Depth: 132mm (5.20”) [150mm (5.90”) including XLR and control knob] Width: 198mm (7.80”) Weight: 938g (2.06lbs)

Page 31

EMC

• BS EN 55103-1: 2009 (EMC emissions)

• BS EN 55103-2: 2009 (EMC immunity)

This product has been designed and tested to comply with the following North American and

Canadian standards:

• FCC class “B” EMC (emissions)

• ICES-003

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

CAUTION: Changes or modications not expressly approved by Contacta Systems LTD or an authorised partner could void the user’s authority to operate the equipment.

Correct disposal of this product

This marking indicates that this product should not be disposed with other household waste throughout the EU. To prevent possible harm to the environment or human health from

uncontrolled waste disposal and to conserve material resources, this product should be recycled

responsibly. To dispose of your product, please use your local return and collection systems or contact the retailer where the product was purchased.

Standards

Page 32

Local dealer:

UK & ROW

+44 (0) 1732 223900

[email protected]

US & Canada

+1 616 392 3400

[email protected]

Contacta Systems Ltd.

Oice 13, Dana Trading Estate

Transfesa Road

Paddock Wood, Tonbridge

TN12 6UT

www.contacta.co.uk