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AMP V Series User Guide

Rear Panel Connectors

AMP1-VTR2-Specific Connectors

Figure 1–6

AMP1-VTR2 Rear Panel

•

Analog Input

(3-Pin Phoenix Male, Channels 1 through 4, Group 1

or 2): These connectors accept standard analog audio signals and

are configured for balanced 90K

connections. The banks (groups)

of input connectors are interleaved and either group of four inputs

(Group 1 or Group 2) may be selected for monitoring using the two-

position

Group

select switch on the front panel. Channel input

numbers are silk-screened above the connectors (Channel 1, 2, 3, 4)

and correspond to the numbers available for selection by the left

and right

Speaker Assign

channel buttons on the front panel.

Connector pinout information is silk-screened just above each

connector.

AMP1-V2DA-Specific Connectors

Figure 1–7

AMP1-V2DA Rear Panel

•

AES In

(1 & 2, on BNC): These input connectors receive industry

standard, unbalanced (75



) AES signals. Note that the unit will

monitor the AES inputs only when the

Analog/Digital

source

select switch is set to

Digital

•

AES Out

(1 and 2, on BNC): These two unbalanced (75



) loop-

through connectors each output a copy of the signal entering the

corresponding AES input connector.

Technologies

Wohler

www.Wohler.com

+1-510-870-0811

+1-510-870-0810

Fax

Tel

AMP1A-VTR2

253836

1 2 3 4 5 6

GROUP 1

INPUTS

GROUP 1

CHANNEL 1

CHANNEL 2

GROUP 2

GROUP 1

+ -

GROUP 2

CHANNEL 3

GROUP 1

+ -

GROUP 2

CHANNEL 4

GROUP 2

SEL. OUT CH

A(L)

SEL. OUT CH B(R)

CALIBRATE

OPERATE

SERIAL NO.

MONTH

YEAR

50/60 Hz 1.0 A

100-240 VAC

2 3

PPM/PPM

4 5

CALIB

METER

VU/PPM

PPM

VU/VU

MODE

DISPLAY

MADE IN U.S.A.

Power

Line Level Calibration

Selected Analog Out L&R

Analog Inputs (2 Banks 4)

Technologies

Wohler

+1-510-870-0810

+1-510-870-0811

www.Wohler.com

Fax

Tel

1 2 3 4 5 6

CONVERTED ANALOG OUT

Term. 1

AES/EBU PORTS

IN 1

OUT 1

OUT 2

Term. 2

IN 2

GAIN

ANALOG IN

SEL. OUT CH

A(L)

SEL. OUT CH B(R)

CALIBRATE

OPERATE

0 -18

-20

-9

GAIN CALIB

DIGITAL

-20

dBFS

AMP1-V2DA

253832

50/60 Hz 1.0 A

100-240 VAC

SERIAL NO.

MONTH

YEAR

2 3

PPM/PPM

4 5

CALIB

METER

VU/PPM

PPM

VU/VU

MODE

DISPLAY

Power

AES Termimation

AES/EBU I/O, 1 & 2

AES Gain Calibration

Analog I/O

Line Level Calibration

Selected Audio Out L&R

Содержание AMP1-V2DA

Страница 1: ... In Rack Audio Video Data Monitoring and Closed Captioning Solutions CONFIDENCE IS EVERYTHING AMP V Series AMP1A VTR2 AMP2 VSDA AMP1 V2DA Digital Analog Audio Speaker Monitors User Guide Part Number 821021 Revision A ...

Страница 2: ...tion Wohler Technologies Inc makes no warranty or representation either express or implied with respect to software documentation their quality performance merchantability or fitness for a particular purpose Wohler Technologies Inc reserves the right to change or improve our products at any time and without notice In no event will Wohler Technologies Inc be liable for direct indirect special incid...

Страница 3: ...ile simultaneously visually monitoring all four channels of the selected source via four high resolution LED bar graph level meters Topics Topics Page Introduction 1 Safety Instructions 2 Installation Recommendations 3 Description 4 Features 5 Specifications 6 Audio Amplifier and Speaker Configuration 7 Front Panel Controls 8 Rear Panel Connectors 13 Line Level Calibration Instructions 17 Internal...

Страница 4: ...ct the power cord from being walked on or pinched particularly at plug s source on the equipment and at the socket 9 Use only the attachments accessories specified by the manufacturer 10 Unplug the equipment during lightning storms or when unused for long periods of time 11 Refer all servicing to qualified service personnel Servicing will be required under all of the following conditions The equip...

Страница 5: ...be rack mounted or stacked in proximity to the unit if the above temperature is not exceeded Allow a 1RU 1 75 44 45mm space above and below the unit for air circulation Rack Mounting You should install the monitor into a standard 19 rack and requires a maximum of 3RU of rack space the 2RU unit plus 1RU above and below Also install it as close to the operator s direct viewing angle as possible as L...

Страница 6: ...ly assign from one to four summed channels to each of the two left and right speaker channels Features for these two models include a stereo volume control and balance control power indication LED headphone output and a stereo analog output on two balanced XLR connectors of the channels assigned to the left and right speaker channels Output limiter circuits are incorporated to protect the speakers...

Страница 7: ...ut reference level 0 4 6 or 8 dBu Selectable display mode VU Only VU PPM or PPM Only Selectable peak hold Manual 3 Second 10 Second or Off Selectable ballistics Type I Type II DIN 45406 or SSRT Selectable alternate bar graph scales Extended VU is standard Alternative AES VU BBC NORDIC and DIN scale labels are available as an option Selectable phase correlation labels available as option F Two bank...

Страница 8: ... Level for Maximum Output Volume Full On 0 dBv balanced 10 dB unbalanced Peak Acoustic Ouptut 2 ft 98 dB SPL 104 dB SPL Frequency Response Sixth Octave 80 Hz to 16 kHz 7 dB 10 dB 50 Hz 22kHz 80 Hz to 16 kHz 5 dB 10 dB 40 Hz 20kHz Power Output RMS Each Side 4 RMS Bass 4 10 W transient 5 W continuous 20 W transient 10 W continuous 14 W transient 10 W continuous 35 W transient 25 W continuous Distort...

Страница 9: ...the woofer channel is not a dedicated LFE or center channel Speaker Configuration The 1U rack size AMP1 Series products are configured with two speakers left and right to reproduce mid and high range audio frequencies in stereo but feature two woofer speakers to reproduce the summed combined low range audio frequencies from the left and right speaker input channels It should be noted that both woo...

Страница 10: ...ne to four of the four available channels for monitoring from the right speaker channel Channel buttons toggle on off and will light up blue to indicate they are selected Operation for each bank of four buttons is as follows Single Channel Select Press and release a single channel button to select that channel and deselect any previous selection Pressing and releasing the selected channel button a...

Страница 11: ...indicate the unit is connected to mains power and an operation voltage is present Phase LEDs These three LEDs indicate the instantaneous and average phase polarity conditions between the two signals in the channel pair or downmix assigned to the left and right speaker channels The two smaller LEDs labeled show instantaneous fast phase relationships in the signal The larger LED labeled AVG will ind...

Страница 12: ...ar panel It is from the selected group of four channels that the Source Speaker Assign channel buttons are used to independently assign channels to the right and left speakers Example If an audio signal of a voice speaking English is fed to the left A input and a voice speaking Spanish is fed to the right B input then the left speaker channel will reproduce the midrange and high range frequencies ...

Страница 13: ...AES digital source as input on the rear panel AES In BNC connectors AES 1 2 LEDs These two bi color green red LEDs indicate the input presence and status of the two AES input signals These LEDs function whether or not the AES digital signals are selected for monitoring through the unit Either LED glows green as long as a valid AES digital datastream for the associated input channel is being receiv...

Страница 14: ... the rear panel When this toggle switch is set to SDI the unit will de embed and monitor the SDI signals as input on the SDI In BNC connector on the rear panel AES 1 2 LEDs These two bi color green red LEDs AES1 and AES2 indicate the input presence and status of the two AES input signals Each LED glows green as long as a valid AES EBU digital datastream for the associated input channel is being re...

Страница 15: ...utputs of the monitor mix as selected by the left and right Speaker Assign channel buttons and source switches on the front panel The left connector outputs the left channel Chan A L and the right connector outputs the right channel Chan A L Both connectors are configured for low impedance connections and the output signals are not affected by the volume balance controls or headphone mute For XLR ...

Страница 16: ...Analog Digital source select switch is set to Digital AES Out 1 and 2 on BNC These two unbalanced 75 loop through connectors each output a copy of the signal entering the corresponding AES input connector 3 3 1 2 1 2 Technologies Wohler www Wohler com 1 510 870 0811 1 510 870 0810 Fax Tel AMP1A VTR2 253836 1 2 3 4 5 6 GROUP 1 INPUTS GROUP 1 CHANNEL 1 CHANNEL 2 GROUP 2 GROUP 1 GROUP 2 CHANNEL 3 GRO...

Страница 17: ...udio signals and are configured for balanced 90K Ω connections The banks groups of input connectors are interleaved and either group of four inputs Group 1 or Group 2 may be selected for monitoring using the two position Group select switch on the front panel Channel input numbers are silk screened above the connectors Channel 1 2 3 4 and correspond to the numbers available for selection by the le...

Страница 18: ... source select switch is set to Digital S DIGITAL SOURCE SELECTED ANALOG OUT FROM 1 2 3 www Wohler com Fax Tel Technologies Wohler 1 510 870 0811 1 510 870 0810 253358 AMP2 VSDA CALIB GAIN TERM 1 2 CH 1 CH 2 ANALOG IN CH 3 CH 4 AES EBU PORTS SDI OUT FROM AES AES IN 1 AES IN 2 OUT FROM AES SDI OUT SDI IN AES IN 1 AES IN 2 0 18 20 9 4 6 GAIN CALIB DIGITAL 20 dBFS 8 dB HI LO HI LO LO HI HI LO 1 2 3 4...

Страница 19: ...ut connector receives standard SD SDI signals The unit monitors Subgroup 1 Channels 1 and 2 and Subgroup 2 Channels 3 and 4 of SDI Group 1 Note that the unit will monitor the SDI input only when the Analog Digital source select switch is set to Digital and the AES SDI digitial source select switch is set to SDI The unbalanced 75 SDI Out loop through connector outputs a reclocked copy of the signal...

Страница 20: ...5 Wait 10 seconds The unit will remove the previous calibration and the new calibration will be applied Note Position 6 of the DIP Switch is not used Note For more accurate indication of signal levels meters are tuned to effect a rounding function which occurs between the thresholds of any two bar graph segments This means the level meter zero 0 LED sigment will turn on at one half the smallest sp...

Страница 21: ...to the unit and repeat steps 1 through 6 Reference Level DIP switch sections 2 and 3 determine the Reference Level which adjusts the level of the input signal and the resultant level displayed on the LED bargraphs Factory setting is 4 dB See DIP switch diagram below for settings Bar Graph Display Mode DIP switch sections 4 and 5 determine how peak levels are displayed for the associated meters on ...

Страница 22: ...ory set position Figure 1 12 10 Position DIP Switch Settings Scale Selection The standard scale used on the 30 segment bar graph display for the Extended VU scale However if alternative scale characteristics are selected for the level meters by setting the Alternate Scale DIP switches Figure 1 12 above it is recommended that a label with the appropriate scale be applied to the front panel LED bar ...

Страница 24: ... 2010 Wohler Technologies Inc All rights reserved 22 AMP V Series User Guide Internal Switch Settings Figure 1 14 AMP2 VSDA Alternative Scales Figure 1 15 AMP1 VSDA and AMP1 VTR2 Alternative Scales ...

Страница 25: ...reference level The PPM characteristics available for selection using DIP switch Sections 7 and 8 of the 10 position Internal DIP Switch Figure 1 12 on page 20 are listed in Table 1 3 below Phase Correlation Display Since it is sometimes helpful to observe phase relationships between two signals being monitored you can enable the phase correlation feature within the lower section of the existing b...

Страница 26: ...left channel bar graph While the audio level in both channels is high enough the phase correlation indication occupies the bottom 13 segments of both bar graphs of a 30 segment stereo pair One additional segment above the active correlation region is always off to serve as a marker The correlation display is visible only so long as the VU audio level is above this blank segment fourteenth segment ...

Страница 27: ...e Balance Woofer Speaker Phase Indication Right Speaker Headphone Woofer Speaker 1 2 3 4 26 Segment High Resolution Level Meters AES Input 1 AES Input 2 Assign Sum Channel Select 1 4 to Left Right L R Left 1 2 3 4 3 4 D A D A 1 2 Analog Output of Digital Source 1 2 3 4 Analog Inputs 1 4 1 2 3 4 Right Right Left R L Analog Output of Selected Source A Analog Digital Select A A A D D D D ...

Страница 28: ...4 Right Left R L Analog Output of Selected Source L R 1 2 3 4 1 2 3 4 Assign Sum Channel Select 1 4 to Left Right Left Right AES 1 Output From SDI IN AES 2 Output From SDI IN AES 1 Input AES 2 Input SDI to AES Converter SDI Input SDI Output Re Clocked 3 4 1 2 AES SDI AES SDI 3 4 1 2 1 2 AES 1 Input AES 2 Input 3 4 SDI AES Select AES SDI AES SDI A Analog Digital Select A A A D D D D Left Speaker St...

Страница 29: ...roup 2 Group 1 4 Group 2 Group 1 Left Right Output of Selected Source Analog Inputs 1 2 3 4 Left Speaker Stereo Analog Amplifier Balance Woofer Speaker Phase Indication Right Speaker Headphone Woofer Speaker 26 Segment High Resolution Level Meters 1 2 3 4 L R 1 2 3 4 1 2 3 4 Assign Sum Channel Select 1 4 to Left Right Left Right Group Select 1 1 2 2 1 1 2 2 G1 G2 G1 G2 G1 G2 G2 G1 ...

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