Table of Contents
Advertisement
Quick Links
AMP2A-VTR
2U Stereo Audio Speaker Monitors
with Four Inputs (AMP2A-VTR) or Two Banks
of Four Inputs (AMP2A-VTR2) on Phoenix,
Summable Independant Left/Right Speaker Channel
Assignment, Selected Stereo Output on Two XLR, Four
53-Segment LED Level Meters, and Phase Indication
Document P/N 821580 REV-B
Title and Contents ..............................................................
Important Safety Instructions and Introduction ......................................
Section 1: Features, Specs, and Installation .........
Description and Features ................................................................
Applications and Specifications .......................................................
Installation ......................................................................................
Section 2: Operation ..........................................................
Front Panel Features .......................................................................
Rear Panel Features ........................................................................
Audio Amplifier and Speaker Configuration ......................................
Section 3: Technical Information ................................
General Technical Observations .......................................................
Level Meter Rear Panel 6-Position DIP Switch Settings ....................
Level Meter Internal 10-Position DIP Switch Settings .......................
Level Meter DIP Switch Locations ..................................................
Level Meter Alternative Scales ........................................................
Level Meter Phase Correlation Feature ............................................
AMP2-VTR Interconnect Block Diagram .........................................
AMP2-VTR2 Interconnect Block Diagram .......................................
© 2004 Wohler Technologies Inc. ALL rights reserved
AMP2A-VTR2
and
User Manual
CONTENTS
1
2
3
4
5
6
7
8
12
14
15
16
17
18
19
20
20
21
22
1
Advertisement
Table of Contents
Related Manuals for Wohler AMP2A-VTR
Summary of Contents for Wohler AMP2A-VTR
-
Page 1: User Manual
AMP2A-VTR AMP2A-VTR2 2U Stereo Audio Speaker Monitors with Four Inputs (AMP2A-VTR) or Two Banks of Four Inputs (AMP2A-VTR2) on Phoenix, Summable Independant Left/Right Speaker Channel Assignment, Selected Stereo Output on Two XLR, Four 53-Segment LED Level Meters, and Phase Indication... -
Page 2: Important Safety Instructions
Introduction Congratulations on your selection of a Wohler Technologies product. We are confident it represents the best performance and value available, and we guarantee your satisfaction with it. If you have questions or comments you may contact us at: Wohler Technologies, Inc. -
Page 3: General Features And Specifications
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 1 General Features and Specifications Description Features Applications Specifications Installation © 2004 Wohler Technologies Inc. ALL rights reserved... - Page 4 AMP2A-VTR2 Front Panel Description The AMP2A-VTR and AMP2A-VTR2 are audio monitors capable of audibly monitoring up to four Analog source channels through an internal stereo speaker system while simultaneously visually monitoring all four channels of the selected source via four high-resolution 53-segment LED bargraph level meters.
- Page 5 Section 1: General Features and Specifications Applications The AMP2A-VTR and AMP2A-VTR2 are ideally suited for use in VTR bays, mobile production vehicles, teleconferencing installations, multimedia systems, satellite links and cable TV facilities, and on-air radio studios. Designed and manufactured in the U.S., both models are backed by a strong warranty and a satisfaction guaranteed return policy.
-
Page 6: Installation
Audio Connections Connection of the audio feeds is straightforward. Please refer to the system interconnect block diagrams on pages 21 and 22 for clarification of the general signal paths into and out of the AMP2A-VTR and AMP2A-VTR2 units. Electrical Interference Care should be exercised to avoid mismatched cable types and other similar causes of undesired reflections in RF signal systems. -
Page 7: Section 2: Operation
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 2 Operation Front Panel Features Rear Panel Features Audio Amplifier and Speaker Configuration © 2004 Wohler Technologies Inc. ALL rights reserved... -
Page 8: Front Panel Features
Section 2: Operation Front Panel Features Please refer to Figure-2a on the following page to familiarize yourself with the front panel features of the AMP2A-VTR and AMP2A-VTR2 units. The following sections describe these features and are referenced, by number, to Figure-2a. - Page 9 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 2: Operation AMP2A-VTR2 AMP2A-VTR Front Panel Front Panel Figure-2a: Front Panel Features © 2004 Wohler Technologies Inc. ALL rights reserved...
- Page 10 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 2: Operation (Continued) Phase Indication LEDs These three LEDs indicate the instantaneous and average phase (polarity) conditions in the signal pair (of assigned channels) monitored in the left and right speaker channels. The two smaller LEDs labeled FAST show instantaneous phase relationships in the signal.
- Page 11 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 2: Operation AMP2A-VTR2 AMP2A-VTR Front Panel Front Panel Figure-2a: Front Panel Features © 2004 Wohler Technologies Inc. ALL rights reserved...
-
Page 12: Rear Panel Features
Section 2: Operation Rear Panel Features Please refer to Figure-2b on the following page to familiarize yourself with the rear panel features of the AMP2A-VTR and AMP2A-VTR2 units. The following sections describe these features and are referenced, by letter, to Figure-2b. - Page 13 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 2: Operation AMP2A-VTR2 AMP2A-VTR Rear Panel Rear Panel Figure-2b: Rear Panel Features © 2004 Wohler Technologies Inc. ALL rights reserved...
-
Page 14: Audio Amplifier And Speaker Configuration
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 2: Operation Audio Amplifier and Speaker Configuration General Description All models in the AMP Series contain high performance transducers (speakers) driven by three power amplifiers; two amplifier/driver combinations handle midrange and high frequency information in the left and right (stereo) speaker channels, while the third amplifier channel sums the left and right channel information below the 500 Hz crossover point in the woofer (bass) speaker(s). -
Page 15: Section 3: Technical Information
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 3 Technical Information General Technical Observations Level Meter Rear Panel 6-Position DIP Switch Settings Level Meter Internal 10-Position DIP Switch Settings Level Meter DIP Switch Locations Level Meter Alternative Scales Level Meter Phase Correlation Feature... -
Page 16: General Technical Observations
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 3: Technical Information General Technical Observations General Mechanical Observations Elimination of cabinet and component sympathetic vibrations (resonances) requires considerable attention to mechanical details. Because of this, and the physical constraints of the speaker’s acoustic enclosures, even minor changes to any of the mechanical details of the unit can seriously impair its acoustic performance. -
Page 17: Level Meter Rear Panel 6-Position Dip Switch Settings
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 3: Technical Information Level Meter Rear Panel 6-Position DIP Switch Settings Line Level (Auto) Calibration, Reference Level, and Display Mode This DIP switch sets the Line Level Calibration, Reference Level, and PPM/VU Display Mode. See the descriptions and diagram below for setting information. -
Page 18: Level Meter Internal 10-Position Dip Switch Settings
(a special option specified at time of order) or by removing power and then reapplying power to the unit (unplug/replug power cord). Contact Wohler Technologies for more information about this feature. Contact Wohler Technologies for information about custom scales. -
Page 19: Level Meter Dip Switch Locations
AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 3: Technical Information Level Meter DIP Switch Locations Rear Panel Level Meter 6-Position DIP Switch Module (see page 17) 919174 PCB Internal Level Meter 10-Position DIP Switch Module (see page 18) -
Page 20: Level Meter Alternative Scales
Level Meter Alternative Scales The standard scale used on the AMP2A-VTR and AMP2A-VTR2 level meters (53-segment) is the Extended VU scale (see diagram below). However, if alternative scale characteristics are selected for the level meters using the Level Meter Internal 10-Position DIP Switch (page 23), it is recommended that a label with the appropriate scale be applied to the front panel LED bargraph level meters. - Page 21 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 3: Technical Information © 2004 Wohler Technologies Inc. ALL rights reserved...
- Page 22 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Section 3: Technical Information © 2004 Wohler Technologies Inc. ALL rights reserved...
- Page 23 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B NOTES: NOTE: PCB layout and schematic support documentation is available upon request. © 2004 Wohler Technologies Inc. ALL rights reserved...
- Page 24 AMP2A-VTR and AMP2A-VTR2 User Manual P/N 821580 REV-B Wohler Technologies, Inc. Wohler Technologies, Inc. 31055 Huntwood Avenue 31055 Huntwood Avenue Hayward, CA 94544 Hayward, CA 94544 1-888-596-4537 Fax: (510) 870-0811 Phone: (510) 870-0810 Fax: (510) 870-0811 web: www.wohler.com US Toll-Free: 1-888-596-4537 e-mail: support@wohler.com...