Wohler | AMP2-SDA/AVU | WOHLER AMP2

October 12, 2004
World Leader •In-Rack• Audio & Video Monitoring
WOHLER AMP2-SDA/AVU
Premium Quality, 2 Channel Analog, AES/EBU & SDI Self-Powered Speaker System with True VU Meters
Features:
Premium Quality Drivers for Superior Reproduction
1 SDI Input (Select either Sub-Group of Group One)
1 Unbalanced AES/EBU Digital Input
SDI Audio Groups 2-4 Selectable via Internal Jumper
2 Balanced Analog Inputs (1 Stereo)
1 Reclocked SDI Output
Demuxing of Either Sub-Group of SDI Group One to 1 AES/EBU Digital Output
Balanced Analog Output of Selected Digital Source
Powerful 104dB SPL at 2 feet (0.6m)
2 Premium Quality Mechanical VU Meters
Exceeds ANSI PPM Meter Specifications
Extended Frequency Response and Low Distortion
Focused Sound, Reduces Adjacent Bay Crosstalk
Audible Indication of Phase/Polarity Problems
Innovative LED Display of Phase/Polarity Relationships
Thorough Magnetic Shielding for Placement next to Video Monitors
Compact & Convenient, all this Power in only 2U of rack space
Headphone Jack, Mutes Speakers
Quick and Simple Installation
A similar unit with an integrated 4” LCD Video screen for SDI and
composite video is now available - the VAMP2-SDA from PANORAMAdtv
Au d io Monitoring
Level Metering
A larm Systems
Toll Free (US): 1.888.5.WOHLER • Tel: 510.870.0810 • Fax: 510.870.0811 • 31055 Huntwood Avenue, Hayward, California 94544, USA
The AMP2-SDA/AVU is a complete exceptionally high quality stereo audio monitoring system for monitoring 2 channels from Analog,
AES/EBU Digital and SDI sources in a compact
two rackspace cabinet. This unit contains
three audiophile-quality drivers and three
power amplifiers; two speakers and amplifiers
reproduce midrange and high frequency information in stereo, while the third amp/driver
combination handles summed LF information
below the 500 Hz crossover point.
The AMP2-SDA/AVU features 2 Premium
Quality Mechanical VU Meters showing VU for
superior level-metering. The front panel features an innovative LED Display of
Phase/Polarity Relationships. Output limiter
circuits are incorporated to protect the speakers, and extensive magnetic shielding allows
placement immediately adjacent to video
monitors with no color impurities.
The unique design provides optimally focused
sound for operators in an Ultra Near Field (1
to 3 ft.) working environment and offers performance comparable to that of many separate monitor pairs, yet does so without the
installation hassles, awkward speaker placements and “added-on” look. This provides for
a higher SPL for the operator while reducing
overall ambient sound and adjacent bay
crosstalk. Extended HF response reveals
potential problems with audio whine or hiss
and electronic rather than acoustic cancellation of bass frequencies provides positive audible detection of out-of-phase (reversed polarity) audio feeds. A headphone jack is provided
on the front panel, usage automatically mutes
the speakers.
The AMP2-SDA/AVU is ideally suited for use in
VTR bays, mobile production vehicles, teleconferencing installations, multimedia systems,
satellite link and cable TV facilities, and on-air
radio studios. Built and rigorously tested in the
USA, the AMP2-SDA/AVU is backed by a
strong warranty and a “Satisfaction
Guaranteed” return policy.
Video Moni toring
www.wohler.com
sales@wohler.com
WOHLER AMP2-SDA/AVU
Premium Quality, 2 Channel Analog, AES/EBU & SDI Self-Powered Speaker System with True VU Meters
S P ecifications:
Analog input . . . . . . . . . . . . . . . . . .2 balanced analog inputs (XLR)
AES/EBU input . . . . . . . . . . . . . . . .1 unbalanced AES/EBU input (BNC)
SDI input . . . . . . . . . . . . . . . . . . . .1 SDI input (BNC)
Rear Panel:
Analog output . . . . . . . . . . . . . . . . .balanced analog output of selected digital
pair (XLR)
AES/EBU output . . . . . . . . . . . . . . .1
unbalanced AES/EBU from SDI input (BNC)
SDI output . . . . . . . . . . . . . . . . . . .1 reclocked SDI output (BNC)
Level meters . . . . . . . . . . . . . . . . . .2 x mechanical VU meters
Level meter threshold . . . . . . . . . . .-6, 0, +4, or +8 dBv: DIP switch selectable
Midscale resolution . . . . . . . . . . . .1dB
Peak acoustic output @ 2 feet . . . .104dB SPL
Power output . . . . . . . . . . . . . . . . .RMS each side (4 Ohms) - 10W, 14W peak
RMS center WOOFER (4 Ohms) - 25W,
35W peak
Frequency response (1/6 octave) . . .80Hz - 16kHz (±5dB)
(-10dB @ 40Hz, 22kHz)
Analog input impedance . . . . . . . . .>40 kOhms balanced
System Diagram:
AES/EBU input termination . . . . . . .75 Ohms unbalanced
SDI input termination
. . . . . . . . . .75 Ohms unbalanced
AES/EBU input sampling rate . . . . .32-48kHz, auto-detecting
Hum and noise . . . . . . . . . . . . . . .better than -68dB below full output
Electrical distortion . . . . . . . . . . . .<0.15% at any level below limit threshold
Acoustic distortion . . . . . . . . . . . . .6% or less worst case frequencies above
120Hz including cabinet resonance,
typically < 1.5%
Magnetic shielding
. . . . . . . . . . . .<0.8 gauss any adjacent surface
Power consumption (AVG. MAX.) . . .45W
Dimensions (HxWxD) . . . . . . . . . . .3.5 x 19 x 12” (44.5 x 483 x 305mm)
Weight (approx.) . . . . . . . . . . . . . .18lbs (8.2kg)
Power supply . . . . . . . . . . . . . . . . .100 to 240VAC, 50/60Hz universal inputCE
and UL approved
All specifications are subject to improvement
Toll Free (US): 1.888.5.WOHLER • Tel: 510. 870.0810 • Fax: 510.870.0811
31055 Huntwood Avenue, Hayward, California 94544, USA
www.wohler.com • sales@wohler.com
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