Wohler VAMP AC-3/M Dual Input 4.3 Inch Looped HD/SD-SDI Video Monitor
The VAMP AC3/M is a high-resolution color video and stereo audio monitor designed specifically for simultaneous monitoring of HD/SD-SDI digital video and AC-3/Dolby Digital or AES/EBU digital audio, providing the six digital audio channels associated with ATSC/DVB programming in a 2U rack-size.
The unit monitors video and de-muxed audio from the HD/SD-SDI source and may also monitor audio from directly Dolby Digital (AC-3), AES/EBU, or PCM balanced or unbalanced sources.
The source video is monitored on a built-in 4.3" high-resolution wide-format color LCD display.
NTSC or PAL signals are automatically detected, displayed, and indicated.
SD and HD sources are automatically detected and displayed with 4:3 or 16:9 aspect ratios respectively.
Display controls include brightness and contrast adjustment.
The selected audio source is reproduced through a internal powered speaker system comprised of left and right midrange and woofer channels for full fidelity sound in a rack-mounted unit.
The rear panel features two HD/SD-SDI inputs (selectable with a front panel toggle switch) and one re-clocked output of the selected HD/SD-SDI source on BNC connectors.
HD/SD-SDI group and subgroup selection is set via front panel switches and an LED is provided to indicate SDI lock status.
Balanced XLR and unbalanced BNC inputs and loop-through outputs are provided for monitoring of PCM (Pulse Code Modulation), AES/EBU, or AC-3 (Dolby Digitalr) audio signals.
A toggle switch and LED on the front panel are provided to indicate and allow selection between two AC-3 Pro-16 signals, if they are present.
Two XLR connectors output analog audio of the sources selected for the left and right speaker channels.
High-resolution, wide-range LED bargraph level meters are provided for all six channels.
The fifty-three bicolor segments, spanning a range of 65 or 90 dB, simultaneously display signal levels according to both the PPM and VU standards.
Bargraph brightness is adjustable via a trim pot.
Both Left/Right and Front/Surround Phase/Polarity LED indicators are provided to alert of possible phase cancellation from mix-down in any likely playback situation.
Front panel LEDs provide AC-3 and AES/EBU input signal presence and power indication.
A headphone output mutes the speakers when used.
Specifications:
- Rack Height: 2RU
- Weight: 18.0 lbs (8.2kg)
- Dimensions: 3.5x19x12" (89x483x305mm)
- Power Consumption: 60W Max
- Signals Monitored: AES/EBU;HD/SD-SDI;Dolby AC-3
- Analog Outputs: 2 Balanced Analog Outputs from Selected Source on XLR
- AES/EBU Inputs: 1 Unabalanced Dolby AC-3 or AES Input on BNC; 1 Balanced Dolby AC-3 or AES Input on XLR
- AES/EBU Input Termination: 110 ohms balanced; 75 Ohms unbalanced
- AES/EBU Input Sampling Rate: 32-48 kHz, auto-detecting
- AES/EBU Outputs: 1 Unbalanced Dolby AC-3 or AES Loop-through Output Pair on BNC; 1 Balanced Dolby AC-3 or AES Loop-through Output Pair on XL
- SDI Inputs: 2 HD/SD-SDI Inputs on BNC
- SDI Outputs: 1 HD/SD-SDI Re-clocked Output on BNC
- Dolby Inputs: 1 Unbalanced Dolby AC-3 or AES Input on BNC; 1 Balanced Dolby AC-3 or AES Input on XLR
- Dobly Outputs: 1 Unbalanced Dolby AC-3 or AES Loop-through Output Pair on BNC; 1 Balanced Dolby AC-3 or AES Loop-through Output Pair on XLR
- Level Meters: 6 x 53 Segments (Vertical)
- Level Meter Scale: 0 to -66 dB
- Level Meter Threshold: 0, +4, +6, +8 dBv: DIP switch selectable
- Level Meter Dynamics: Simultaneous VU & PPM
- Level Meter Resolution: 1 dB
- # of Video Displays: 1
- Display Size: 4.3 in Diagonal
- Display Characteristics: High resolution TFT LCD, Transmissive
- Display Modes: NTSC/PAL auto-sensing
- Active Viewing Area: 95.0 x 53.9 mm
- Native Aspect Ratio: 16:9 & 4:3 (selectable)
- Resolution: 480 x 272
- Viewing Angle: Top=80; Bottom=80; Left/Right=80
- Pixel Pitch: 0.198mm x 0.198mm
- Pixel Response: 30 ms rising; 30 ms falling
- Lamp LIfe: 10k hours (average)
- Luminance: 165 cd/m^2
- Contrast: 400 to 1
- Color Depth: 1.6 million
- Aural Sound Outputs: Headphone Out, Mutes Speakers;Internal mid-range L/R Speakers
- Acoustic Distortion: 1.5% or less at frequencies above 200 Hz; 6% or less worst case
- Electrical Distortion: Less than 0.15% at any level below limit threshold
- Frequency Response (1/6 octave): 120 Hz - 16 kHz (+ or -5 dB); (-10 dB @ 40 Hz, 20 kHz)
- Peak Acoustic Output @ 2 feet: 100 dB SPL
- Hum and Noise: More than -68 dB below full output
- Power Output: RMS each side (4 ohms) - 10W, 14W peak
- Other Features (1): 1 x RS232 on DB9 for Programming & Updates
