The AMS4 is a versatile audio monitoring system. This one RU high unit can be used to monitor analog audio, AES digital audio and SDI embedded audio. The SDI demuxer may be added as an option. </p><p>The AMS4 features an 8 x 1 input switcher (four analog sources, four AES sources) with auto recognition of 75 or 110 Ohm AES signals. A direct balanced stereo analog audio output of the switcher is available on the rear panel. A ten segment LED stereo VU meter and phase indicator is included on the front panel. The AMS4 offers full range acoustic monitoring and may be muted via external control. Two front panel push button switches, MODE and SOURCE, and a dot matrix LED readout allows the user to select the source to be monitored. The MODE switch steps through analog, AES digital and SDI modes while the SOURCE switch selects the input from that group. Use A1 through A4 for analog, D1 through D4 for AES and SD1 through SD8 for embedded signals. On power down, the last selection is stored in memory. </p><p>If a signal is lost or corrupted in the AES digital and SDI modes, the display will alternate between the source selection and the letters NL, signifying no lock. In the SDI mode, a flashing number in the source ID code signifies that embedded audio is not present. The AMS4 will automatically detect whether the AES/EBU digital signal is balanced (110 Ohms) or unbalanced (75 Ohms). In the event that both a balanced and unbalanced signal is connected simultaneously to the same AES input, random selection between the two sources will occur. </p><p>A convenient front panel mounted TRS headset jack is also provided. The speaker feeds are normalled through this jack to automatically mute the speakers when a headset is plugged in. Connections to the AMS4 are made on convenient pluggable screw terminals for the balanced analog and digital AES inputs and outputs. The unbalanced digital audio inputs and SDI inputs are made on 75 Ohm BNC connectors. </p><p>The EXT MUTE IN requires a closure to ground to mute the monitor. Once muted, the display window of the AMS4 will alternate between the selected source ID and the word MUTE. The open collector output EXT MUTE TALLY pin will be activated. Connections to the external mute control and tally are available on a pluggable screw terminal, located on the rear panel.</p>
The AMS8-1A is a compact one rack-unit aural and visual monitor designed to handle multi-channel format audio signals. Eight PPM/VU LED bargraphs display signal activity, while a sophisticated multi-speaker system allows operators to listen, with great clarity, to the signal being monitored. The AMS8-1A has four digital audio inputs. 110 Ohm balanced inputs are on 3-pin pluggable screw terminal connectors and 75 Ohm unbalanced inputs are on BNC connectors. An internal switcher allows the operator to toggle between the two banks of four balanced and unbalanced inputs. A reference input for DARS is provided. This may be 110 Ohms, balanced, via a 3-pin pluggable screw terminal connector or 75 Ohms, unbalanced, via a BNC connector. The SERIAL COMM DB9 connector includes GPI and GPO inputs that may be used for tally and external control functions. AES re-clocked copies of the four input signals are provided on the rear panel. The signals are provided as both balanced, on pluggable 3-pin terminals, or unbalanced signals on BNC connectors. The unit provides an analog stereo output that is a copy of the signal being fed to the integral speaker system. This stereo output may be configured to follow the front panel speaker level control or to be a fixed line level output. The AMS8-1A may be field configured to suit the monitoring needs of a particular operation or location, using a combination of the eight segment LED dot-matrix readout, the eight lighted pushbuttons and the two rotary shaft encoders with integral pushbutton switches. Ward-Beck has developed an intuitive scheme to ease programming of the AMS8-1A. Features that can be readily programmed to assist in monitoring include: Creating preset monitoring configuration, creating an infinitely variable proportional stereo mix-down of multiple audio channels, providing global control for monitoring.</p>
The AMS8-1AM is a compact one rack-unit aural and visual monitor designed to handle multi-channel format audio signals. Eight PPM/VU LED bargraphs display signal activity, while a sophisticated multi-speaker system allows operators to listen, with great clarity, to the signal being monitored. INPUTS The AMS8-1AM has four digital audio inputs. 110 Ohm balanced inputs are on 3-pin screw terminal pluggable connectors and 75 Ohm unbalanced inputs are on BNC connectors. An internal switcher allows the operator to toggle between the two banks of four balanced and unbalanced inputs. Four AES output signals that are copies of the input signals are provided on the rear panel. The signals are provided as both balanced on pluggable 3-pin terminals or unbalanced signals on BNC connectors. A reference input for DARS is provided. This may be 110 Ohms, balanced, via a 3-pin screw terminal pluggable connector or 75 Ohms, unbalanced, via a BNC connector. The AMS8-1AM is equipped with a Ward-Beck demux module capable of handling 3G/HD/SD-SDI signals with embedded audio. The demux module provides a re-clocked copy of the input digital video signal as well as a copy of the AES group that is selected for monitoring. The unit provides an analog stereo output that is a copy of the signal being fed to the integral speakers. This stereo output may be configured to follow the front panel speaker level control or to be a fixed line level output. The SERIAL COMM DB9 connector includes GPI and GPO inputs that may be used for tally and external control functions.<br />The versatile AMS8 series monitors may be field configured to suit the monitoring needs of a particular operation or location, using a combination of the eight segment LED dot-matrix readout, the eight lighted pushbuttons and the two rotary shaft encoders with integral pushbutton switches. Ward-Beck has developed an intuitive scheme to ease programming of the AMS8 series monitors. Features that can be readily programmed to assist in monitoring include: creating preset monitoring configuration, creating an infinitely variable proportional stereo mix-down of multiple audio channels, providing global control for monitoring and enabling voice-over on Dolby signals.</p>