Contacta V7, V15, V15A User Manual

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Page 1

V7 / V15 / V15a

Hearing Loop Drivers

Installation &

User Guide

November 2019

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 12 13-21 22-27 28 29-31 32

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, V15 and V15a hearing loop drivers are suitable for smaller facilities and venues.

The V7 and V15 are constant current hearing loop drivers which power

hearing loops utilising a single output. The V15a 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

V15

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

5. V15 Hearing Loop Driver

6. Installation & User Guide

7. Power Supply [PS-60]

8. IEC Power Lead

Plug type varies by country.

Page 5

V15a

1. Rubber Feet x4

2. 5.08mm Euro-Block Connector x2

3. 3.81mm Euro-Block Connector x2

4. Signage

5. V15a Hearing Loop Driver

6. Installation & User Guide

7. Power Supply [PS-60]

8. IEC Power Lead

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.

Page 6

Connections

Rear Panel Connections

1 2

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

***V15 DC Power Input, 2.1mm 24Vdc 4.17A **V15a 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 [V15a only].

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

Page 7

Connection Examples

XLR to XLR (line)

TRS to XLR (line)

Unbalanced to XLR

XLR to Euroblock (balanced)

Unbalanced to Euroblock

Page 8

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 the voltage capability of the driver (V7: 7.5Vrms, V15: 15Vrms, V15a: 15Vrms) divided by the required current.

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

V7 Single-Turn Hearing Loop (Metric)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

Flat Cable (Width)

0.5mm 85m 56m 42m 34m

1mm 133m 89m 66m 53m

1.5mm 155m 103m 77m 62m

2.5mm 173m 115m 86m 69m

10mm 101m 67m 50m 40m

12.5mm 192m 128m 96m 77m

25mm 255m 170m 127m 102m

V7 Single-Turn Hearing Loop (Imperial)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

Flat Cable (Width)

18AWG 438ft 292ft 219ft 175ft

14AWG 593ft 395ft 296ft 237ft

18AWG (equivalent)

14AWG (equivalent)

505ft 336ft 252ft 202ft

711ft 474ft 355ft 284ft

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V15 Single-Turn Hearing Loop (Metric)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

Flat Cable (Width)

1mm 242m 161m 121m 97m

1.5mm 284m 189m 142m 114m

2.5mm 319m 213m 160m 128m

10mm 180m 120m 90m 72m

12.5mm 340m 226m 170m 136m

25mm 450m 300m 225m 180m

V15 Single-Turn Hearing Loop (Imperial)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

Flat Cable (Width)

18AWG 746ft 498ft 373ft 299ft

14AWG 997ft 664ft 498ft 399ft

18AWG (equivalent)

14AWG (equivalent)

840ft 560ft 420ft 336ft

1327ft 885ft 663ft 531ft

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V15a Single-Turn Hearing Loop (Metric)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

Flat Cable (Width)

1mm 266m 177m 133m 106m

1.5mm 311m 208m 156m 125m

2.5mm 350m 233m 175m 140m

10mm 197m 131m 99m 79m

12.5mm 373m 249m 186m 149m

25mm 493m 329m 247m 197m

V15a Double-Turn Hearing Loop (Metric)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (CSA)

Flat Cable (Width)

1mm 193m 129m 97m 77m

1.5mm 209m 139m 104m 83m

2.5mm 219m 146m 110m 88m

10mm 172m 115m 86m 69m

12.5mm 267m 178m 133m 107m

25mm 316m 211m 158m 126m

Page 11

V15a Single-Turn Hearing Loop (Imperial)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

Flat Cable (Width)

18AWG 819ft 546ft 409ft 328ft

14AWG 1093ft 729ft 547ft 437ft

18AWG (equivalent)

14AWG (equivalent)

921ft 614ft 461ft 369ft

1456ft 971ft 728ft 582ft

V15a Double-Turn Hearing Loop (Imperial)

Current 2.0A 3.0A 4.0A 5.0A

Cable Type Cable Length

Maximum

Cable Length

Round

Cable (AWG)

Flat Cable (Width)

18AWG 598ft 399ft 299ft 239ft

14AWG 684ft 456ft 342ft 273ft

18AWG (equivalent)

14AWG (equivalent)

723ft 482ft 362ft 289ft

949ft 633ft 475ft 380ft

Page 12

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 V15: Loop Good

V15a: Loop A Good Loop B Good

V7 and V15: Loop Open Fault

V15a: Loop A Open Fault Loop B Open Fault

V7 and V15: Loop Ground Fault

V15a: Loop A Ground Fault Loop B Ground Fault

Incorrect Power The power input supply voltage

Hearing loop(s) is/are correctly

connected to the driver.

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.

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.

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.

None required.

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.

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

faults and re-apply power to

the driver.

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 V15a: If connecting only one loop to a V15a, 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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Controls

Front Panel Overview

V7 and V15

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

the hearing loop output is clipping (see Troubleshooting on page

28 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.

V15a

1 2

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

Hearing Loop A is clipping (see Troubleshooting on page 28 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 28 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.

Page 14

Locking/Unlocking the Hearing Loop Driver

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.

Page 15

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.

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:

V7 and V15

1. Loop Output

2. Line Input

3. Phantom Power

4. Microphone Input

5. Current Output (no adjustment)

6. High-Frequency Compensation

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.

V15a

1. Loop Output

2. Line Input

3. Phantom Power

4. Microphone Input

5. Loop B Trim Adjustment

6. High-Frequency Compensation

Page 16

Loop Output

V7 and V15 Loop Output V15a Loop Output

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

output current in 0.5A steps.

Adjustments

V7 and V15 Loop Output: Adjustment Mode V15a Loop Output: Adjustment Mode

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.

Page 17

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.

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.

Page 18

Phantom Power

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

Adjustments

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.

Page 19

Microphone Input

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

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.

Page 20

V15a Only: Loop Trim

When using a V15a, 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 V15a. The equivalent V7 and V15 menu displays Current Output, to which adjustments can

be made using the Loop Output section (see page 16).

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.

Page 21

High-Frequency Compensation

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

Set-Up on page 22.

Page 22

Set-Up

To ensure optimal performance of a V7, V15 or V15a hearing loop driver, set-up should be performed in following order:

Step 1: Background Noise Level (see page 23) Step 2: Metal Loss (see pages 24-25) Step 3: Output Level and Clipping (see page 24-25) Step 4: Field Uniformity (see page 25-26) Step 5: Final Output Level Adjustment (see page 26) Step 6: Input Signal Level Adjustment (see page 26)

Required for Set-Up

• 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

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 23

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.

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.

Page 24

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 “Good” is displayed.

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

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.

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 27).

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

Page 25

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 26

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.

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 25. 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.

Page 27

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.

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

Measured Field

Strength

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

Output current that

will achieve 0dB

Steps to

increase Drive

Steps to

decrease Drive

Page 28

Troubleshooting

Symptom Possible Fault Action

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

2) Internal failure.

Interference (buzzing/

whistling/hissing) is heard

through induction loop.

The driver is excessively hot to touch.

The loop output level

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

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

1) Bad input signals.

2) Internal failure.

1) Large amount of mains hum

present on input.

2) Internal failure.

1) Shorted feeder cable.

2) Loop listener is not

working or being used too far from loop.

up too high for signal level at

input.

1) Check mains power.

2) Seek assistance.

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.

1) Check input signal source.

2) Incorrect hearing loop

driver being used.

1) Check feeder cable,

although the hearing loop driver will usually refuse to

tune to shorted feeder.

2) Check listener and location.

1) Reduce input level setting.

2) Input signal is distorted.

3) Output signal is clipping.

The Clipping Status Lights

are lit.

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

The connected hearing loop is

too long.

2) Check signal source.

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

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 29

Technical Specication

V7:

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) 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)

see notes 1 and 2

Page 30

Technical Specication

V15:

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: 15Vrms (42.3Vpk-pk) @ 5Arms (14.14Apk-pk) 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=3Ω (265.4uH + 1.37Ω @ 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)

see notes 1 and 2

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Technical Specication

V15a:

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: 15Vrms (42.3Vpk-pk) @ 5Arms (14.14Apk-pk) 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=3Ω (265.4uH + 1.37Ω @ 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)

see notes 1 and 2

Page 32

Standards

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.

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