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Wohler VMMDA-1

2 Channel, HD/SD-SDI, Audio Monitor, 1RU


Wohler VMMDA-1
The VM Series, from our line of “confidence plus” audio monitors are very compact and light, digital and analog audio monitors at very cost effective prices. The single-rack space monitors offer excellent fullrange fidelity far exceeding that of competitive units. Two front-firing midrange tweeter speakers and a compact high-performance woofer are arranged in Wohler Technologies’ popular bi-amp design. All Wohler speaker systems are protected against blowout by limiters.The summed bass feature is important for audible detection of “out of phase” conditions.

Electronic rather than acoustic cancellation of bass frequencies provides positive audible detection of outof-phase (reversed polarity) audio feeds. The units feature 2 ten-segment VU LED bar graph level meters. Fast and averaging “phase” LEDs give visual alert of “out of phase” conditions. A three-way toggle switch selects between the analog or digital inputs. Muting may also be activated from a switch remote from the rear panel (optional extra). An auxiliary analog output of the selected analog or digital source is provided on the rear panel.

The VM Series monitors are completely magnetically shielded to allow interference-free operation immediately adjacent to all CRT video monitors. The light weight and shallow depth chassis compared to similar type units, make them ideal for use in portable and mobile vehicle applications.

Main Features:
• Only 1RU
• Powerful 96dB SPL at 2 feet (0.6m)
• 2 10-segment VU level meters
• Phase /polarity indication
• Converts 110 W balanced AES (Phoenix) to/from 75 W unblanced AES (BNC)
• Headphone jack mutes speakers
• Blowout-proof speakers
• Thorough magnetic shielding allows placement next to video monitors.
• Select from analog or digital sources.

• Dimensions (H x W x D) 1RU in standard 19” rack: 1.75” x 19” x 10” (44.5 mm x 483 mm x 254 mm)
• 1RU in standard 19” rack: 1.75” x 19” x 9.0” (44.5 mm x 483 mm x 246 mm)
• Shipping Weight / Net Weight 13 lbs (5.90 kg) 10 lbs (4.50 kg)
• Power Requirements Power to the unit is 100 to 240 VAC ± 10%, 50/60Hz.
• Supplied Accessories AC power cord
• Inputs 2 balanced analog: (mini Phoenix) 1 AES: (mini Phoenix/BNC) 1 SD/HD-SDI (BNC)
• 8 balanced analog (mini Phoenix)
• 4 AES (mini Phoenix/BNC)
• Outputs 2 selected analog (mini Phoenix)
• 1 re-clocked SDI (BNC)
• 2 selected analog (mini Phoenix)
• Analog Input Impedance >100k W balanced
• AES Input Impedance AES 75 W Unbalanced and 110 W Balanced
• Digital Input Sampling Rate 32 to 48 kHz, auto-sensing
• Hum and Noise Better than -70 dB below full output
• Electrical Distortion Less than 0.3% at any level below limiting threshold
• Acoustic Distortion Typically < 2% at any level below limiting, 100 Hz-15 KHz

Wohler VMMDA-1 Figure 1

List Price: $1,995.00
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