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Description
AMP2A-10S
2-CHANNEL AUDIO MONITOR
The AMP2A-10S provides self-powered, full-fidelity
stereo audio monitoring in a compact two rack space
cabinet. A front panel switch allows the operator to
select one stereo source for monitoring and output
from up to 10 stereo analog inputs (20 channels).
The AMP2A-10S features two 20-segment LED level
meters showing VU or PPM for accurate levelmetering. 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 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
Features
higher SPL for the operator while reducing overall
ambient sound and adjacent bay crosstalk.
Excellent 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 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 AMP2A-10S 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.
Premium quality drivers
Twenty balanced analog Inputs (10 stereo, select 1)
Balanced analog output of selected stereo source
Order Part Number
AMP2-10S: 8100-0200
Powerful 104dB SPL at 2 feet (0.6m)
Two 20-segment tri-color level meters displaying VU
or PPM
www.wohler.com[email protected]
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AMP2A-10S
2-CHANNEL AUDIO MONITOR
Excellent frequency response and low distortion
Innovative LED Display of Phase/Polarity
Relationships
Benefits
Premium quality drivers provide superior
reproduction.
Audible indication of phase/polarity problems provide
instant information.
Rear Panel
100-240 VAC
50/60 Hz 1.0 A
SERIAL NO.
MADE IN U.S.A.
MONTH
YEAR
INPUTS
CHANNEL A
(LEFT)
CHANNEL B
(RIGHT)
3
21
-
++-+-+
5
4
--+-+-+-+-+-
Headphone jack (mutes speakers)
Blowout proof speakers
Quick and simple installation
Thorough magnetic shielding allows placement next
to video monitors
Focused sound reduces adjacent bay crosstalk.
Wohler
Technologies
Tel
+1-510-870-0810
Fax
+1-510-870-0811
www.Wohler.com
AMP2A-10S
76
8
109
+
253862-01
CH. A (L)
1 2
3
SELECTED OUTPUT
CH. B (R)
231
Physical Specifications
Dimensions (H x W x D)
Shipping weight 21 lbs. (9.53 kg)
Space requirements 2RU in a standard 19” rack
Supplied accessories AC external power unit/cord
Power connector
Power requirements
Power consumption 45 W
3.5” x 19” x 12.8” (89 mm x 483 mm x 325 mm)
Attached external power unit plugs into standard U.S. outlet. Alternate power
cables are available.
Power to the unit is 24V DC, 3.0 A. The external power supply then connects to
mains power (100 to 240 VAC ± 10%, 50/60Hz.
www.wohler.com[email protected]
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AMP2A-10S
2-CHANNEL AUDIO MONITOR
Technical Specifications
Inputs 20 Phoenix (3-pin, male)
Outputs 2 selected out on XLR
Analog input impedance 40K :balanced
Peak acoustic out (@ 2’) 104 dB SPL
Power output
RMS each side (4:):
RMS bass (4:):
Frequency response, 6th octave 80 Hz - 16 kHz ± 5 dB (-10 dB @ 40 Hz, 20 kHZ)
Input level for maximum output
(volume full on)
Hum and noise (analog) Better than -68 dB below full output
Distortion, electrical < 0.15% at any level below input threshold
Distortion, acoustic
Input overload +26 dBv balanced
14 W transient / 10 W continuous
35 W transient / 25 W continuous
0 dBv balanced
6% or less at worst case frequencies above 120 Hz, including cabinet resonance;
typically less than 1.5%
Analog out S/N >90 dB
Analog out THD <0.008%
Level meter type 20-segment LED bar graph
Segment quantity 20
LED segment pitch .01” (2.54 mm)
Bar graph length 2” (50.8 mm)
Meter dynamics VU or PPM, selectable
Level gain -6, 0, +4,+8 dBu, selectable
Dynamic range 44 dB
Midscale resolution 1 dB
Segment colors Tricolor (green, amber, red)
Scale +4 (peak) to -40 dB
www.wohler.com[email protected]
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Block Diagram
(Pair 1-10)
AMP2A-10S
2-CHANNEL AUDIO MONITOR
Analog
Inputs
Right
Input
1
2
3
4
5
6
7
8
9
10
Left
Input
6
5
4
7
3
9
2
10
1
Source
Pair
Select
8
20-Segment
Level Meters
L
L
R
Loop-Through
Output
R
Volume
Left
Stereo Analog
Amplier
Right
Phase Indication
Balance
Headphone
Left
Speaker
Woofer
Speaker
Right
Speaker
Specifications subject to change, errors and omissions excepted.
All trademarks, product names and logos are the property of their respective owners.
Any rights not expressly granted herein are reserved. ©2018, Wohler Technologies
Inc.
Rev:July 2018
Wohler Technologies Inc., 1280 San Luis Obispo Ave. Hayward, California 94544, USA
+1 510 870 0810 | [email protected] | www.wohler.com
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