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AMP1-S8-3G 8-Channel 3G Audio Monitor
1. AMP1-S8-3G 8-CHANNEL 3G MULTI-FORMAT AUDIO MONITOR
AES 3.0 Gb/s 8Ch
EBU HD Audio SDI
Description
The AMP1-S8-3G monitor is an exceptionally high- The unique design provides optimally focused sound
quality audio monitor systems offering premium for operators in an ultra near-field (1 to 3 ft.) working
quality 8-channel analog, AES/EBU, 3G/HD/SD-SDI environment and offers performance comparable to
multi-channel audio monitoring and conversion as that of many separate monitor pairs, without the
well as professional level metering. These units installation hassles, awkward speaker placements
contain 3 audiophile-quality drivers and three power and “added-on” look. This provides for a higher SPL
amplifiers; 3 speakers and amplifiers reproduce for the operator while reducing overall ambient sound
midrange and high frequency information in stereo, and adjacent bay crosstalk. Extended HF response
while the third amp/driver combination handles reveals potential problems with audio whine or hiss
summed LF information below the 500 Hz crossover and electronic rather than acoustic cancellation of
point. bass frequencies provides positive audible detection
of out-of-phase (reversed polarity) audio feeds. A
These units feature eight 26-segment high- headphone jack is provided on the front panel that
resolution, tri-color LED level meters showing automatically mutes the speakers.
simultaneous VU and PPM for superior level-
metering. The front panel features an innovative LCD These units are ideally suited for use in space-critical
display of phase/polarity relationships. Output limiter environments such as TV facilities, studios, VTR bays,
circuits are incorporated to protect the speakers, and mobile production vehicles, satellite links and indeed,
extensive magnetic shielding allows placement any rack mount environment where multi-channel
immediately adjacent to video monitors with no color audio monitoring is required.
impurities.
Features
Eight 26-segment tri-color LED bar graphs displaying Premium quality drivers and power amplifiers
simultaneous VU and PPM
Audible indications of phase/polarity problems
Headphone jack (mutes speakers)
Phase-correlation display of selected channels
Front panel summing of any combination of up to 8
channels to the left and/or right speakers and Output limiter protected speakers
selected
Order Part Number
AMP1-S8-3G: 8101-0090
2. AMP1-S8-3G 8-CHANNEL 3G MULTI-FORMAT AUDIO MONITOR
Benefits
Thorough magnetic shielding prevents interference Focused sound, reduces adjacent bay crosstalk
from nearby equipment.
Ultra near-field offers exceptional monitoring
Electronic cancellation provides detection of out-of- performance.
phase (reversed polarity) audio feeds.
Small rack space requirements make them perfectly
Excellent frequency response and low distortion suited for use in space-critical environments
Rear Panels
Selected Pin-Outs
Balanced AES In/Loop Out
XLR Female
Balanced AES Out from SDI
XLR Male
Analog In and Metered Analog Out
3. AMP1-S8-3G 8-CHANNEL 3G MULTI-FORMAT AUDIO MONITOR
Physical Specifications
Dimensions (H x W x D) 1RU Units: 1.75” x 19” x 11” (4.5 mm x 483 mm x 279 mm)
Shipping weight 1 RU Units: 13 lbs (5.9 kg)
Space requirements 1 RU in a standard 19” rack
Supplied accessories AC external power unit/cord
Attached external power unit plugs into standard U.S. outlet. Alternate power
Power Connector
cables are available.
Power Requirements Power to the unit is 100 to 240 V AC ± 10%, 50/60Hz.
Power Consumption 60 W
Technical Specifications
8 balanced analog (DB-25)
8 balanced AES/EBU pair (DB-25)
Inputs 4 AES pair (4 BNCs)
2 RS-232 (DB-9)
2 3G/HD/SD-SDI (2 BNCs) (Level A only)
1 3G/HD/SD-SDI re-clocked (BNC) (3G models only)
8 balanced AES loop out (DB-25)
1 CVBS from SDI (3G models only)
Outputs
8 unbalanced AES out from SDI (HD-15) (3G models only) or
Option: 8 balanced AES out from SDI (DB-25) (3G models only)
8 balanced metered analog out (DB-25)
Other rear panel connectors 1 Remote (DB-9) (reserved for future use)
Level meters 8 26-segment
Level meter scale 0 to -66 dB
Level meter threshold 0, +4, +6 or +8 dBv, switch selectable
Level meter dynamics simultaneous VU and PPM
Midscale resolution 1 dB
Peak acoustic output at 2 feet 104 dB SPL
Electrical: <0.15% at any level below limit threshold
Distortion Acoustic: 6% or less worst case frequencies above 140 Hz including cabinet
resonance, typically <1.5%
Magnetic shielding <0.8 gauss any adjacent surface
4. AMP1-S8-3G 8-CHANNEL 3G MULTI-FORMAT AUDIO MONITOR
Block Diagram
26-Segment Meters
1 2 3 4 5 6 7 8
LCD Display
Group & Channel Switching Status
RS 232 uP Control / U.I.
Balanced Level Metering
Analog Inputs
(DB-25) 1-2 Analog to
Digital D/A Select
Digital Input Select
1-2 Digital to 1
1-2 Balanced Digital In 1-2 1 A Analog 2 Headphone
3-4 Unbalanced Digital In 1-2 2
Analog Matrix & Channel Summing with Front Panel Control
Balanced 5-6 D
7-8
SDI In 1-2 3
AES Inputs
and Loopthrough
Outputs 3-4 Analog to Left
Digital D/A Select Volume Balance
(DB-25) Digital Input Select Speaker
3-4 Digital to 3
Balanced Digital In 3-4 1 A Analog 4
Unbalanced Digital In 3-4 2 D
SDI In 3-4 3
Woofer
Unbalanced Speaker
AES/EBU 5-6 Analog to Stereo Analog
Inputs (BNC) Digital D/A Select
Digital Input Select Amplifier
5-6 Digital to 5 Woofer
Balanced Digital In 5-6 1 A Analog 6
Unbalanced Digital In 5-6
SDI In 5-6
2
3
D Speaker
7-8 Analog to
Digital D/A Select Right
Digital Input Select
A 7-8 Digital to 7 Speaker
Balanced Digital In 7-8 1 Analog 8
Unbalanced Digital In 7-8 2 D
SDI In 7-8 3
HD/SD-SDI Section
Input #1 Unbalanced
SDI to AES
Input #2 AES Output L R
from SDI
Output
(Reclocked) HD/SD Analog Out
Interface From
Analog Out From Selected
Selected Source Source
(Chan. 1-8) (Stereo)
Contact
Wohler Technologies, Inc. Wohler Europe Wohler Asia
31055 Huntwood Avenue +33 970 440 253 1704 Lucky Commercial Center
Hayward, CA 94544 USA +33 1 77 72 59 99 (fax) 103 Des Voeux Road West
+1 888 5 WOHLER (Toll Free) sales@wohler.com Sheung Wan, Hong Kong
+1 510 870-0810 www.wohler.com +852 2851 8325
+1 510 870-0811 (fax) +852 2850 8182 (fax)
Part Number 830044, Revision A