AM-16 Series Audio Crosspoint Switchers Balanced inputs and outputs Expandable matrix configuration Mono, stereo or multi-channel operation Non-volatile storage of 100 programs Remote interface with EIA-442/485 or MIDI Level adjustment for each input Redundant power supply Logical, easy to use control panels Exceptional audio performance AM-16 SYSTEM ARCHITECTURE The AM-16/B Audio Crosspoint Switcher is a self-contained master switcher that supplies everything needed in a 16 input, 16 output system. It's equally effective for broadcast, production houses, or public buildings. Full front panel control and display facilities are included on the AM-16/B, which can be configured for 16x16 monaural or 8x8 stereo operation. In stereo mode, the software automatically creates paired programs and offers options such as reversed channels and mono to stereo splitting. For more basic applications, the AM-16/B can easily be programmed to operate as a line selector. AM-16/B Expander Modules provide sixteen additional channels when connected to an AM-16/B master switcher, and duplicated the master's I/O assignments. The addition of a single expander module creates a complete 16x16 stereo crosspoint matrix. A number of expanders may be slaved to a single master to create multi-channel systems. For example, a single AM-16/B master switcher and three AM-16/E expanders will provide a 16x16x4 matrix to route audio from four-channel VTRs. AM-16/R Remote Control Stations use a "distributed intelligence" scheme, where each contains its own computer and local memory. This allows storage of a particular studio, which do not affect the master programs in the main switcher. In the event of a remote control station is disconnected or turned off, it automatically releases the 422/485 line so it won't affect communications between other stations connected to the line. STANDARD FEATURES Large LED displays, backlit legends and intelligently labeled buttons ensure fast and efficient operation. Functions needed most often are immediately available and use the fewest keystrokes to program. Source and destination assignments are displayed, making it easy to see which crosspoints are currently active. Memory-Protect guards against accidental erasure of programs. In the event of a power failure, all programs are retained in non-volatile memory; no batteries are required. On power-up, the last program in use is automatically selected. Front panel path point for two channels-in and out. USE THE AM-16/B MODULARITY TO DESIGN YOUR OWN CUSTOM SYSTEM The AM-16 Series was primarily designed for excellent performance in small and medium installations, but the modules may also be configured to make larger systems. Some of the more useful schemes are illustrated on the following page. EIA-422/485 PLUS MIDI FOR MAXIMUM FLEXIBILITY The AM-16/B's remote interface allows selection on programs from any location, while the main switching matrix resides in a central area. Individual rooms or studios can be easily linked to each other, while each retains control of routing for its own destination. Remote control is a EIA-422/485 and MIDI, as standard interfaces. The 422/485 port offers the advantage of control from as far away as 1,000 feet (305 meters) and also allows more than one remote station to be connected on a single cable. This "multi-drop" design makes it easy to install remote controllers in several different rooms, each selecting feeds to its own area (see Figure 4). Many modern effects devices and signal processors utilize the Musical Instrument Digital Interface, or MIDI. MIDI ports on the AM-16/B master switcher can issue program-select commands to control other MIDI equipped outboard audio equipment. This versatile system makes it possible for different processing, such as reverb or EQ, to be associated with each audio routing program. BETTER CIRCUIT DESIGNS FOR DEMANDING APPLICATIONS The AM-16 Series design anticipates many problems that will be encountered in practical installation. For example, matched differential inputs have precision shunt capacitors, providing protection against RF entry. And stable metal film resistors help make it quite, and keep the tight specifications it had when new. Selected NE-5532 opamps ensure low D.C. offset, and each is socketed to ease replacement, should it ever be required. A spare is included, along with complete schematics. Output stage design reflects attention to another set of practical concerns. With the AM-16, shorting one leg of a differential output has no effect on the level of distortion of the other output. Unlike some designs, the phase response of each is lagcorrected to provide zero error through 20kHz. And output inductors help keep the output amplifiers stable when driving reactive loads. Engineers at 360 Systems understand that power supplies are often the weakest link in audio equipment. The AM-16/B provides an extra measure of reliability by making all active power supply components fully redundant. An over-sized toroidal power transformer (with international approvals) and generous heatsinks significantly extend system life. CUSTOMER SERVICE AND TECHNICAL SUPPORT 360 Systems includes Zero Maintenance as a primary requirement in product design. Through eighteen years in the commercial audio field, our products have become recognized as business tools with a reputation for reliability. Full factory customer support and technical assistance is always available; and complete schematics of circuitry are included in the technical manuals, as well as application notes for effective installation and operation.