Vision AV-1700 Manuale utente

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AV-1700 DIGITAL AMPLIFIER

OWNERS MANUAL

www.visionaudiovisual.com/techaudio/av-1700

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DECLARATION OF CONFORMITY

Where applicable Vision products are certified and comply with all known local regulations to a

„CB Certification‟ standard. Vision commits to ensure all products are fully compliant with all

applicable certification standards for sale in the EU and other participating countries.

The product described in this owner manual is in compliance with RoHS (EU directive

2002/95/EC), and WEEE (EU directive 2002/96/EC) standards. This product should be returned

to the place of purchase at the end of its useful life for recycling.

WARNINGS

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR

BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED

SERVICE PERSONNEL.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the

user to the presence of uninsulated “dangerous voltage” within the product‟s enclosure that may be

of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle, is intended to alert the user to the presence of

important operating and maintenance (servicing) instructions in the literature accompanying the

appliance.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE

THIS APPLIANCE TO RAIN OR MOISTURE.

All products are designed and imported into the EU by „Vision‟ who is wholly owned by „Azlan

Logistics Ltd.‟, Registered in England Nr. 04625566 at Lion House, 4 Pioneer Business Park,

Clifton Moor, York, YO30 4GH. WEEE Registration: GD0046SY

DECLARATION OF ORIGIN

All Vision products are made in the People‟s Republic of China (PRC).

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USE ONLY DOMESTIC AC OUTLETS

Connecting the unit to an outlet supplying a higher voltage may create a fire hazard.

HANDLE THE POWER CORD WITH CARE

Do not disconnect the plug from the AC outlet by pulling the cord; always pull the plug itself.

Pulling the cord may damage it. If you do not intend to use your unit for any considerable

length of time, unplug the unit. Do not place furniture or other heavy objects on the cord, and

try to avoid dropping heavy objects on it. Do not tie a knot in the power cord. Not only could

the cord be damaged, but a short circuit could also be caused with a consequent fire hazard.

PLACE OF INSTALLATION

Avoid installing this product under the following conditions:

• Moist or humid places

• Places exposed to direct sunlight or close to heating equipment

• Extremely cold locations

• Places subject to excessive vibration or dust

• Poorly ventilated places

Do not expose this product to dripping or splashing. DO NOT PLACE OBJECTS FILLED WITH

LIQUIDS ON OR NEAR THIS PRODUCT!

MOVING THE UNIT

Before moving the unit, be sure to pull out the power cord from the AC outlet and disconnect

the interconnection cords with other units.

WARNING SIGNS

If you detect an abnormal smell or smoke, turn this product off immediately and unplug the

power cord. Contact your reseller or Vision.

PACKAGING

Save all packing material. It is essential for shipping in the event the unit ever needs repair.

IF ORIGINAL PACKAGING IS NOT USED TO RETURN THE UNIT TO THE SERVICE CENTRE,

DAMAGE IN TRANSIT WILL NOT BE COVERED BY WARRANTY.

WATTS

The most consistent standards for measuring watts are “Program Power” and “RMS” because

these measure average sustained levels.

Amplifier power output changes depending on how many loudspeakers are connected.

Professional manufacturers typically quote output based on 8 ohms. Less reputable

manufacturers quote at 4 ohms to make their product seem more powerful.

This amplifier has an output of:

2 x 30w (sometimes referred to as 60w) @ 8 ohms (two loudspeakers connected)

2 x 60w (sometimes referred to as 120w) @ 4 ohms (four loudspeakers connected)

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FRONT AND REAR PANELS

1. IR Receiver

2. Active Input LED

3. Line-level Input 4 (3.5mm Minijack - duplicated on rear panel)

4. Line-level Input Volume [Push: Input Select]

5. Microphone Input Gain [Push: On/Off]

1. Microphone Input (Balanced XLR)

2. Line-level Inputs 1-3 (2-Phono)

3. Line-level Input 4 (3.5mm Minijack -duplicated on front panel)

4. Line-Level Output (2-Phono)

5. Loudspeaker Outputs

6. RS-232 Control Input

7. Fuse

8. Figure-8 (C8) Power Input

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REMOTE CONTROL

1. Power On and Off

2. Input Selection

3. Tone Reset

4. Mute

5. Tone Control

6. Microphone Input Gain

7. Line-level Input Volume

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INSTALLATION

1. CONNECT INPUTS AND OUTPUTS Up to two pairs of loudspeakers can be connected. If

speaker cable provided is not long enough use unshielded speaker cable with gauge of

0.75mm or higher.

NOTE 1: The warranty will be void if you use shielded cable

NOTE 2: This is a low-impedance digital amplifier. Do not connect „100v line‟speakers

(normally any speakers with “t” in their part code)

2. CONNECT POWER The amplifier will turn on when power is plugged in the first time.

3. TURN POWER ON Then select input and adjust volume as required.

Should it become overloaded it will shut down to protect itself. Return operating conditions to

safe levels and restart amplifier.

MICROPHONE INPUT

1. The microphone input provides “Phantom Power” (24v) for condenser microphones such as

lectern or boundary (PZM) microphones.

NOTE: Ensure the microphone volume is turned down when connecting microphones.

2. The microphone volume can be adjusted independently of the line-level inputs.

3. Keep microphone away from loudspeakers to avoid feedback.

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RS-232 CODES

Table 1: Control Codes

HEX

Codes

On Remote

Function

A5 11 11

Bring out of standby

A5 15 15

OFF

Put into standby

A5 05 05

MUTE

Mute on/off (Standby activates after 30 minutes of mute)

A5 01 01

INPUT1

Input select 1

A5 09 09

INPUT2

Input select 2

A5 10 10

INPUT3

Input select 3

A5 02 02

INPUT4

Input select 4

A5 08 08

TREBLE+

Increase treble gain by +1dB

A5 0D 0D

TREBLE-

Decrease treble gain by -1dB

A5 0C 0C

BASS+

Increase bass gain by +1dB

A5 12 12

BASS-

Decrease bass gain by -1Db

A5 00 00

RESET

Reset tone

A5 07 07

MIC+

Mic volume + (also cancels mute if active)

A5 0B 0B

MIC-

Mic volume - (also cancels mute if active)

A5 06 06

VOL+

Volume + (also cancels mute if active)

A5 04 04

VOL-

Volume - (also cancels mute if active)

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Table 2: Direct Master Volume Codes

HEX Codes

Function

Remark

A5 30 30

Set volume to 28

VOLUME MAX

A5 31 31

Set volume to 27

A5 32 32

Set volume to 26

A5 33 33

Set volume to 25

A5 34 34

Set volume to 24

A5 35 35

Set volume to 23

A5 36 36

Set volume to 22

A5 37 37

Set volume to 21

A5 38 38

Set volume to 20

A5 39 39

Set volume to 19

A5 3A 3A

Set volume to 18

A5 3B 3B

Set volume to 17

A5 3C 3C

Set volume to 16

A5 3D 3D

Set volume to 15

A5 3E 3E

Set volume to 14

A5 3F 3F

Set volume to 13

A5 40 40

Set volume to 12

A5 41 41

Set volume to 11

A5 42 42

Set volume to 10

A5 43 43

Set volume to 9

A5 44 44

Set volume to 8

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Table 3: Direct Master

Volume Codes

HEX Codes

Function

Remark

A5 50 50

Set volume To 0

VOLUME MIN

A5 51 51

Set volume to 1

A5 52 52

Set volume to 2

A5 53 53

Set volume To 3

A5 54 54

Set volume To 4

A5 55 55

Set volume To 5

A5 56 56

Set volume To 6

A5 57 57

Set volume To 7

A5 58 58

Set volume To 8

A5 59 59

Set volume To 9

A5 5A 5A

Set volume To 10

A5 5B 5B

Set volume To 11

A5 5C 5C

Set volume To 12

A5 45 45

Set volume to 7

A5 46 46

Set volume to 6

A5 47 47

Set volume to 5

A5 48 48

Set volume to 4

A5 49 49

Set volume to 3

A5 4A 4A

Set volume to 2

A5 4B 4B

Set volume to 1

A5 4C 4C

Set volume to 0

VOLUME MIN

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A5 5D 5D

Set volume To 13

A5 5E 5E

Set volume To 14

A5 5F 5F

Set volume To 15

A5 60 60

Set volume To 16

A5 61 61

Set volume To 17

A5 62 62

Set volume To 18

A5 63 63

Set volume To 19

A5 64 64

Set volume To 20

A5 65 65

Set volume To 21

A5 66 66

Set volume To 22

A5 67 67

Set volume To 23

A5 68 68

Set volume To 24

A5 69 69

Set volume To 25

A5 6A 6A

Set volume To 26

A5 6B 6B

Set volume To 27

A5 6C 6C

Set volume To 28

VOLUME MAX

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