A-16D
A-Net Distributor
Aviom?s A-Net Distributors, the A-16D and A-16D Pro, provide support for parallel connections of multiple Pro16 devices, including the A360, A-16II and A-16R Personal Mixers. Each accepts one A-Net input and provides eight identical A-Net outputs using standard Cat-5e cables.
The 2U A-16D Pro is powered by an internal switching power supply, with a detachable power cord and IEC power inlet on the rear panel. Isolated (floating ground) DC power is supplied to eight A-Net outputs for providing remote power via Cat-5e to Pro16 Personal Mixers.
A single unpowered A-Net Thru is provided for daisy-chaining additional A-Net Distributors or other Pro16 devices, such as the AN-16/o v.4 Output Module. All network connections on the A-16D Pro use heavy duty locking Neutrik EtherCon connectors.
Inside the A-16D Pro is Aviom?s unique power sub-system, which virtually eliminates the possibility of introducing hum or ground loops into an audio system. alternatively, the half-rack space A-16D is powered by an external DC power supply and provides remote power over A-Net on a per-jack basis, using optional external PS-120 DC power supplies.
A-Net network connections use standard RJ45 jacks. The A-16D is a cost-effective method for distributing A-Net and power to Personal Mixers, providing redundant cable runs to back-up modules, or refreshing an A-Net signal where cable runs exceed 500ft/150m.
An unlimited number of Distributors can be used in an A-Net network.
Architectural Specifications
The Aviom A-16D Pro shall employ the Aviom A-Net Pro16 audio transmission protocol to provide one channel of A-Net input and eight channels of A-Net data distribution for devices connected in an A-Net network. It shall digitally transmit full-bandwidth, high-quality audio by employing the Aviom A-Net Pro16 audio transmission protocol.
Front panel connectors shall be of the EtherCon RJ45 type. LED indicators for power and A-Net shall be provided.
The unit shall be powered from an internal universal power supply (110 to 240 VAC). It shall provide DC power to the eight A-Net Out jacks to power Pro16 Personal Mixer products. It shall be UL and CE listed. Rear panel features shall include an AC power receptacle with fuse and a detachable AC cable. The front panel shall include an AC power switch.
Its dimensions shall be 19 inches wide, 14.25 inches deep, and 2U (3.5 inches) high. Its net weight shall be 12 pounds, and its steel chassis shall be finished in blue. The unit shall be Aviom, Inc. model A-16D Pro A-Net Distributor.
Features
- One A-Net input, eight A-Net outputs
- Distributes power and audio on the same cables
- One passive A-Net Thru
- Heavy-duty EtherCon connectors
- Eight isolated internal power supplies
- Standard IEC power connector
A-16II
Personal Mixer
The A-16II Personal Mixer is the industry standard solution for delivering high quality monitoring control directly to performers on stage and in the studio. Each A-16II Personal Mixer provides independent mix control of sixteen channels, including channel volume, pan/stereo spread, and grouping, as well as master volume and tone controls. Additionally, each Personal Mixer can store and recall up to sixteen independent custom mix snapshots.
Individual channels, stereo pairs, and channel groups can be soloed or muted. The Global Trim function can be used to decrease every channel?s volume 6dB, providing additional headroom for mixing a selected channel.
The TRS audio output from the A-16II can be connected to a range of devices, including wired in-ear monitors (IEMs), transmitters for wireless IEMs, headphones, powered monitors, and power amps. The A-16II features unique high voltage and high current output circuitry which auto-detects stereo and mono connections.
Audio is delivered to the A-16II from a Pro16 input module or console card over a single Cat-5e cable, using Aviom?s ultra-fast A-Net Pro16 technology. A-Net provides plug-and-play operation, long cable runs (up to 500ft/150m between devices), and sub-millisecond transmission of 24-bit digital audio.
Power can be supplied to the A-16II through an optional external DC power supply or over the Cat-5e cable, using an A-16D or A-16D Pro A-Net Distributor. Personal Mixers can be daisy-chained (with external DC power supplied locally) or connected in parallel using an A-Net Distributor.
A-16II Personal Mixers can be used in virtually any combination with other Pro16 devices, including the rack-mounted version of the Personal Mixer, the A-16R, and the A360.
Architectural Specifications
The Aviom A-16II Personal Mixer shall provide stereo mixing of sixteen channels of audio transmitted via an A-Net network over Cat-5e UTP cable. It shall provide full-bandwidth audio by employing the Aviom A-Net Pro16 audio transmission protocol. It shall employ 24-bit D/A converters with a 44.1/48kHz sample rate.
It shall have a frequency response from 4Hz to 22kHz, +0/-0.2dB or better, with total harmonic distortion no more than 0.003% at 1kHz with a +4dBu input signal. Maximum level (RMS) shall be 1.0 watt at 100 ohms. The audio output shall be capable of being connected to headphones or line-level audio sources. Output impedance shall be 32 ohms.
Front panel features shall include master volume, treble and bass controls, LED indicators for Channel Volume and Pan, lighted channel-select buttons, mute and solo functions. A front-panel A-Net Active LED shall be provided. The unit shall be capable of storing sixteen mixes as presets in internal memory.
Rear panel features shall include a detachable DC power cord. The unit shall be powered from an external universal power supply (input voltage 100 to 240 VAC; output voltage 18-24 VDC, 0.5 amps). It shall be UL and CE listed.
The rear panel shall have RJ45 connectors for A-Net digital signal input and output. It shall employ a ?? TRS jack for headphone/line-level output.
Its dimensions shall be 10.75 inches wide, 5.6 inches deep, and 2.25 inches high. Its net weight shall be 3.4 pounds, and it shall be finished in blue. The unit shall be Aviom, Inc. model A-16II.
Features
- Provides stereo mix control of sixteen audio channels
- Sixteen channel-select buttons with select and Mute LEDs
- Channel Volume control with LED readout
- Channel Pan/Spread control with LED readout
- Dedicated Recall, Group, Solo, and Mute buttons
- Sixteen user Preset memory locations
- Master Volume, Treble, and Bass controls
- Tabletop or mic-stand mountable (using optional MT-1a mic stand bracket)
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Used Aviom
Aviom is a pro audio equipment manufacturer of personal monitoring systems. Headquartered in West Chester, Pennsylvania, Aviom produces distributed audio networking gear which uses a proprietary digital audio transport system called A-Net, based on the physical layer of Ethernet and carried over Category 5 cables terminated with 8P8C connectors.
Aviom's Pro16 Monitor Mixing System was nominated in 2005 for a TEC Award,and in 2008 the Pro64 Series won the best Sound System Technology at Musik Messe in Frankfurt, Germany. Aviom's products are used in live sound, broadcast, recording studios, houses of worship, theaters, schools, and post-production facilities worldwide.
Applications include interfacing with stage monitoring, headphone monitoring, and in-ear monitoring. House-of-worship engineer Brad Herring wrote that, of the several CAT-5e-based personal monitoring systems entering the marketplace, "perhaps the most notable is the Aviom system."All Aviom products are designed and manufactured in the United States.
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Octave: The difference between two frequencies where one is twice the other. For example, 200 Hz is an octave higher than 100 Hz. 400 Hz is one octave higher than 200 Hz.
Optical Digital Cable: Fiber optic cable that transfers digital audio signals as light pulses.
Outcue/Outq/Out-Point: These words all refer to the final few seconds of audio signifying the conclusion of the production.
Package: A completed and fully edited audio piece.
Passive: Not active. A passive crossover uses no external power and results in insertion loss. A passive speaker is one without internal amplification.
Phase: Time relationship between signals; it’s all relative.
Power Output: A measure, usually in watts, of how much energy is modulated by a component.
Preamplifier: A control and switching component that may include equalization functions. The preamp comes in the signal chain before the amplifiers.
Pre Outs: Connectors that provide a line-level output of the internal preamp or surround processor.
Pre Outs/Main Ins: Connectors on a receiver that provide an interruptible signal loop between the output of the internal preamp or surround processor portion of the receiver and the input of the amplifier portion of the receiver.
Pre/Pro: A combination preamp and surround processor.
Processors: Anything that processes an incoming signal in some way. Surround processors, for example, can decode a Dolby Digital signal to send to an amp so you can hear it.
Pulse Code Modulation: (PCM) a way to convert sound or analog information to binary information (0s and 1s) by taking samples of the sound and record the resulting number as binary information. Used on all CDs, DVD-Audio, and just about every other digital audio format. It can sometimes be found on DVD-Video.
Q-and-A: Question and answer session.
Receiver: Any component that receives, or tunes, broadcast signals, be it NTSC, HDTV, DBS, or AM/FM radio. Typically refers to the single component that includes a preamp, surround processor, multichannel amplifier, and AM/FM tuner.
Reverberation: The reflections of sound within a closed space.
RF: Radio Frequency. Television signals are modulated onto RF signals and are then demodulated by your television’s tuner. VCRs and DBS receivers often include channel 3 or 4 modulators, allowing the output signal to be tuned by the television on those channels. Also, laser discs used an RF signal for modulating Dolby Digital 5.1 soundtracks on some movies. This requires an RF demodulator (usually referred to as an AC3-RF demodulator) before or in the surround processor to decode the signal.
RMS: Root Mean Square or the square root of the arithmetic mean (average) of the square’s set of values. A reasonably accurate method of describing an amplifier`s power output.
SACD: Super Audio CD. Enhanced audio format with up to six channels of high-resolution audio encoded using DSD. Requires an SACD player. Multichannel also requires a controller with six-channel analog or proprietary digital inputs for full playback.
Sampling Frequency: How often a digital sample is taken of an analog wave. The more samples taken, the more accurate the recording will be. You need to sample at a minimum of twice the highest frequency you want to capture. For example, the 44.1-kilohertz sampling rate of a CD cannot record sounds higher than 22.05 kilohertz.
Scener: A radio report in which the announcer is recorded at the same time and place as the background sound of an event.
Sensitivity: A measurement (in dB) of the sound-pressure level over a specified frequency range created by a speaker driven by 1 watt (2.83V at 8 ohms) of power with a microphone placed 1 meter away.
Signal-to-Noise Ratio: A comparison of the signal level relative to the noise level. Larger numbers are better.
Simultaneous Interpretation: This system allows attendees to hear the meeting in their own language.
Sound Bite: A portion of audio of someone speaking.
Sound field: The total acoustical characteristics of a space, such as ambience number, timing, and relative level of reflections; ratio of direct to reflected sound RT-60 time etc.
Soundstage: The area between two speakers that appears to the listener to be occupied by sonic images. Like a real stage, a soundstage should have width, depth, and height.
Speaker: A component that converts electrical energy into acoustical energy.
SPL: Sound-Pressure Level. Measured in dB.
Subwoofer: A speaker designed to reproduce very low bass frequencies, usually those below about 80 Hz.
THX: Certification program for home theater equipment. Uses some proprietary features, but mostly assures a base quality level for a given room size. (See THX select or Ultra.) Is compatible with any and all soundtrack formats. Stands for either Tom Holman’s eXperiment, after the engineer who drafted the original standard, or is named after the company’s founder George Lucas first movie, THX 1138. Nobody agrees on which.
THX select: Certification program for speakers and receivers that assures a base level of quality and performance when played in a room that’s between 2,000 and 3,000 cubic feet.
User-Generated Content (UGC): Text, photos, video or audio supplied by the customers of a company.
Voicer: A radio report without background audio taken from a scene or otherwise.
Wrap: A radio report containing both the reporter and an actuality.
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