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KRAMER:  SIMPLE CREATIVE TECHNOLOGY

 

Overview 

  

   

3 Overview 

The high performance VA-8xl 8 Channel Balanced Stereo Audio Amplifier 
and VA-16xl 16 Channel Balanced Stereo Audio Amplifier are designed for 
professional and high-end consumer audio systems. 

In particular, the VA-8xl and VA-16xl

• 

Feature a digitally controlled volume control function, with gain from 

-95dB (attenuation) up to +31dB (amplification) - in increments of 0.5dB 

• 

Provide a clean, noise-free transition during gain setting changes 

• 

With their outstanding audio specifications, ensure transparent 

performance even in the most critical broadcast applications 

• 

Have 8 and 16 channels respectively, each of which is independent 

• 

Let you control the amplifier gain of the Left and Right channels—

together or separately—via the front panel buttons, or remotely via RS-232 or 
RS-485 

• 

Let you daisy-chain up to 15 machines in a single system using RS-485 

or RS-232, allowing control of up to 240 stereo audio channels! 

• 

Store and recall up to 15 configuration setups via the non-volatile 

memory, using the front panel buttons, or remotely via RS-232 or RS-485 

• 

Include a bright 7-segment LED display on the front panel, showing the 

gain of the selected channel (that is, its left and right decibel status) 

• 

Include easy-to-connect detachable terminal block connectors 

• 

Are housed in a rugged, professional 1U rack mountable enclosure and 

ship with Windows®-based software 

Achieving the best performance means: 

• 

Connecting only good quality connection cables, thus avoiding 

interference, deterioration in signal quality due to poor matching, and elevated 
noise levels (often associated with low quality cables) 

• 

Avoiding interference from neighboring electrical appliances that may 

adversely influence signal quality and positioning your Kramer VA-8xl or 
VA-16xl in a location free from moisture and away from excessive sunlight 
and dust 

4  Your VA-8xl and VA-16xl 

Figure 1 illustrates the VA-8xl 8 Channel Balanced Stereo Audio Amplifier 
and Figure 2 illustrates the VA-16xl 16 Channel Balanced Stereo Audio 
Amplifier
. Table 1 defines the front panel of the VA-8xl and VA-16xl, and 
Table 2 defines the rear panel of the VA-8xl and VA-16xl

Содержание VA-16XL

Страница 1: ...Kramer Electronics Ltd USER MANUAL Models VA 8xl 8 Channel Balanced Stereo Audio Amplifier VA 16xl 16 Channel Balanced Stereo Audio Amplifier...

Страница 2: ...2 Port 13 7 3 Upgrading Firmware 13 8 Technical Specifications 18 9 Communication Protocol 19 Figures Figure 1 VA 8xl 8 Channel Balanced Stereo Audio Amplifier 3 Figure 2 VA 16xl 16 Channel Balanced S...

Страница 3: ...ures 4 Table 3 Dipswitch Definitions 9 Table 4 Machine Dipswitch Settings 9 Table 5 Technical Specifications of the VA 8xl or VA 16xl 18 Table 6 Instruction Codes 19 Table 7 Examples 19 Table 8 VA 16x...

Страница 4: ...dio Amplifier or VA 16xl 16 Channel Balanced Stereo Audio Amplifier Power cord Null modem adapter Windows based software This user manual2 and the Kramer concise product catalog CD 2 Getting Started W...

Страница 5: ...to 15 configuration setups via the non volatile memory using the front panel buttons or remotely via RS 232 or RS 485 Include a bright 7 segment LED display on the front panel showing the gain of the...

Страница 6: ...Your VA 8xl and VA 16xl 3 Figure 1 VA 8xl 8 Channel Balanced Stereo Audio Amplifier Figure 2 VA 16xl 16 Channel Balanced Stereo Audio Amplifier...

Страница 7: ...f the selected right channel 2 Table 2 Rear Panel VA 8xl VA 16xl Features Feature Function 1 OUT Terminal Block Connectors Connect to audio acceptors from 1 to 8 or 1 to 16 2 IN Terminal Block Connect...

Страница 8: ...segment LED Displays1 After that the VA 8xl or VA 16xl go to channel 1 and show its gain attenuation level in dB During regular work the VA 8xl or VA 16xl show the status of the last channel you obser...

Страница 9: ...DOWN button to increase or decrease the decibel level by a significant amount 4 Press the LEFT LEVEL or the RIGHT LEVEL button again The bright LEFT dB and or RIGHT dB 7 segment LED Display becomes di...

Страница 10: ...on rCL recall appears in the LEFT dB 7 segment LED Display and the number of that CHANNEL SELECTOR button appears in the RIGHT dB 7 segment LED Display 3 Press the same CHANNEL SELECTOR button again T...

Страница 11: ...Null modem adapter and connect the Null modem adapter with a 9 wire flat cable to the RS 232 DB9 port on your PC Toconnecta PC to a stand aloneVA 8xl or VA 16xl unit without usinga Null modemadapter...

Страница 12: ...8 Used for the firmware upgrade procedure see section 7 6 1 3 Setting the MACHINE To control a unit via RS 232 or RS 485 each unit has to be identified via its unique MACHINE Set the MACHINE on a VA...

Страница 13: ...ort on the first VA 8xl or VA 16xl unit to a PC or other controller and then connect the RS 232 port on each of the VA 8xl or VA 16xl units using the specially prepared RS 232 cable see section 6 2 1...

Страница 14: ...B to another RS 232 DB9M connector C by connecting PIN 5 to PIN 5 PIN 8 to PIN 3 PIN 9 to PIN 2 5 Connect the RS 232 DB9M connector B to the RS 232 DB9F port on the first VA 8xl or VA 16xl unit 6 Att...

Страница 15: ...the second VA 8xl or VA 16xl unit 3 If shielded cable is used for an RS 485 connection connect the shield to the Ground PIN Figure 10 illustrates the RS 485 line that connects Between each VA 8xl VA 1...

Страница 16: ...Kramer firmware version on a VA 8xl or VA 16xl unit do the following 1 Connect the RS 232 DB9 rear panel port on the VA 8xl or VA 16xl unit to the Null modem adapter and connect the Null modem adapter...

Страница 17: ...een 2 After a few seconds the Splash screen is replaced by the Atmel Flip window Figure 12 Atmel Flip Window 3 Press the keyboard shortcut key F4 or select the Read Configuration File command from the...

Страница 18: ...RS 232 error message appears In the Atmel Flip window the Operations Flow column is disabled and crosses appear in the third column Figure 14 Atmel Flip Window RS 232 Communication 5 Click OK and pre...

Страница 19: ...that in the Buffer Information column the HEX File Va16xl hex appears Figure 16 Atmel Flip Window Connected 7 Click Run After each stage in the operation is completed the check box for that stage beco...

Страница 20: ...on the VA 8xl or VA 16xl OFF 10 Disconnect the RS 232 DB9 rear panel port on the VA 8xl or VA 16xl unit from the Null modem adapter 11 Set DIP 7 OFF 12 Set DIP 8 OFF 13 Turn the POWER switch on the VA...

Страница 21: ...4dBm 50 on detachable terminal blocks VA 16xl 16 balanced stereo audio 4dBm 50 on detachable terminal blocks GAIN 95dB to 31dB MAX OUTPUT LEVEL 20dBu balanced TND N 0 01 BANDWIDTH 0 3dB 20 Hz to 40 k...

Страница 22: ...31 5 0 5x 255 DATA 24dec 18hex INCREASE DECREASE AUDIO GAIN 0 increase gain 1 decrease gain 25dec 19hex REQUEST AUDIO GAIN As in Instruction 22dec above When requesting both channels the reply is For...

Страница 23: ...X 88 A1 83 5 83 5 16 XX 99 81 55 5 55 16 XX D1 81 27 5 27 5 16 XX 89 A1 83 83 16 XX 9A 81 55 55 16 XX D2 81 27 27 16 XX 8A A1 82 5 82 5 16 XX 9B 81 54 5 54 16 XX D3 81 26 5 26 5 16 XX 8B A1 82 82 16 X...

Страница 24: ...16 XX DA A1 23 5 23 5 16 XX EF A1 3 3 16 XX C6 A1 13 5 13 5 16 XX DB A1 24 24 16 XX F0 A1 3 5 3 5 16 XX C7 A1 14 14 16 XX DC A1 24 5 24 5 16 XX F1 A1 4 4 16 XX C8 A1 14 5 14 5 16 XX DD A1 25 25 16 XX...

Страница 25: ...is required the original dated invoice or a copy must be presented as proof of warranty coverage and should be included in any shipment of the product Please also include in any mailing a contact name...

Страница 26: ...m P N 2900 000816 REV 1 For the latest information on our products and a list of Kramer distributors visit our Web site www kramerelectronics com Updates to this user manual may be found at http www k...

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