Features:
Full Fidelity Audio Monitoring in only 1U of rack space
2 Unbalanced AES/EBU Digital Inputs (Select 1)
2 Balanced Analog Inputs (1 Stereo)
Balanced Analog Output of Selected Digital Source
2 Ultra High Resolution 106 Segment Tri-Color LED Bargraphs
Simultaneous VU (bar) and PPM (dot) Bargraph Display Ballistics
Audible Indication of Phase/Polarity Problems
Custom Variations of Standard Scales and/or Color Masks Available on Request
Industry Leading Wide Dynamic Range
1 dB Midscale Resolution
Powerful 98dB SPL at 2 feet (0.6m)
Premium Quality Drivers & Power Amplifiers
Extended Frequency Response and Low Distortion
Focused Sound, Reduces Adjacent Bay Crosstalk
Audible Indication of Phase/Polarity Problems
Thorough Magnetic Shielding for Placement next to Video Monitors
Headphone Jack, Mutes Speakers
Blowout Proof Speakers
Quick and Simple Installation
The AMP1-DA/106 provides self-powered,
full-fidelity stereo audio monitoring of 2 chan-
nels from Analog and AES/EBU Digital sources
and ultra-high resolution LEDs with 106 seg-
ments in the smallest rack space possible.
This unit contains four high performance
transducers driven by three power amplifiers:
one amplifier/driver combination handles
midrange and high frequency information in
stereo, while the second handles summed low
frequency information below the 500 Hz
crossover point.
The unique design provides optimally focused
sound for operators in an Ultra Near Field (1
to 3 ft.) working environment and offers per-
formance comparable to that of many sepa-
rate monitor pairs, yet does so without the
installation hassles, awkward speaker place-
ments and “added-on” look. This provides for
a higher SPL for the operator while reducing
overall ambient sound and adjacent bay
crosstalk.
The level meters are now available with a
choice of BBC, DIN, Nordic and VU scales
and “PPM Only” has also been added to the
user selectable options. These changes were
requested by our customers, if you don't see
what you are looking for please do contact us
and we'll be glad to help.
Extended HF response reveals potential prob-
lems with audio whine or hiss and electronic
rather than acoustic cancellation of bass fre-
quencies 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.
Output limiter circuits are incorporated to pro-
tect the speakers, and extensive magnetic
shielding allows placement immediately adja-
cent to video monitors with no color impurities.
Our unique tri-color LED design means we
can offer an almost unlimited variety of
options such as Phase Correlation, Peak Hold,
Loudness, Sum & Difference, and alternate
scales & color mappings. The standard display
mode is set as a single segment PPM “dot”
above a VU bar; each segment’s color is fixed
according to its position on the scale. Level
calibration may be set via dip switches to
select one of four different calibration levels.
The AMP1-DA/106 is ideally suited for use in
VTR bays, mobile production vehicles, tele-
conferencing installations, multimedia sys-
tems, satellite link and cable TV facilities, and
on-air radio studios. Built and rigorously test-
ed in the USA, the AMP1-DA/106 is backed
by a strong warranty and a “Satisfaction
Guaranteed” return policy.
Toll Free (US): 1-888-5-WOHLER Tel: (650) 589-5676 Fax: (650) 589-1355 • 713 Grandview Drive, South San Francisco, California 94080, USA
www.wohler.com sales@wohler.com
Wohler AMP1-DA/106
Compact 2 Channel Analog & AES/EBU Self-Powered Speaker System with Professional Level Metering
World Leader •In-Rack• Audio & Video Monitoring
Audio Monitoring
October 12, 2004
Alarm Systems Video MonitoringLevel Metering
(2 pages)
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