Peavey CAB 16I, CAB 16O Specifications

Description

The CAB™ 16i and CAB™16o, respectively, are sixteen line-level input and output MediaMatrix®gateways onto and off of a 100baseT Ethernet network employing CobraNet

™

proprietary protocol to ensure seamless, error-free transmission of high-quality real-time audio without dropouts or lossy compression.

The CAB 16i digitizes line-level inputs and uploads audio data onto the Cobranet Ethernet network. Each CAB 16i channel has software controlled, continuously variable analog input gain in 1/2 dB steps. Up to 30 dB of input padding is available for each channel. Both are software controllable through the MediaMatrix.

The CAB 16o downloads and reconstructs audio data from the Cobranet Ethernet network 16 line-level channel outputs. Maximum output levels of +6, +12, +18, and +24 dBu and volume from zero to full-scale in 1/2 dB steps are software controllable through the MediaMatrix.

In addition to the input or output audio paths, both products incorporate an RS485 port and two word-clock linking BNC connectors.

Features

• Sixteen channels of line-level audio transmitted onto an Ethernet network using CobraNet protocol sampled at 48 kHz (CAB 16i).

• Sixteen channels of line-level audio transmitted from an Ethernet network using CobraNet protocol sampled at 48 kHz (CAB 16o).

• A/D converters are 24-bit 64 times oversampling, using delta-sigma modulation (CAB 16i).

• D/A converters are 24-bit, 128 times oversampling, using delta-sigma modulation (CAB 16o).

• 24, 20, or 16-bit transmission quantization at a 48 kHz sampling rate.

• Low noise/wide dynamic range 108 dB typical (CAB 16i).

• Low noise/wide dynamic range 110 dB typical (CAB 16o).

• A non-Ethernet RS-485 control port with two multi-drop connections.

• Two word clock linking connectors that enable auto-switch-over to a second unit, should one unit fail.

• One rack-unit (1-3/4"), fan-cooled chassis.

Applications

• Stadiums

• Cruise ships

• Multi-purpose facilities

• Auditoriums

• Large-scale paging systems

• Schools

• Courts of law

• University campus buildings

• Theme parks

• Performing arts centers

• Distance learning

• Hotel meeting rooms

• Houses of worship

• Conference centers

• Teleconferencing

• Civic Centers

• Music clubs

• Theaters

• Arenas

• Critical listening/recording - high end audio

• Any facility requiring distribution of multiple line-level signals

SPECIFICATIONS

MediaMatrix

CAB™16i and CAB

™

16o

NOTES:

1. All specifications are typical for any channel(s).

2. All specifications are for AC line of 120 Volts rms.

3. All measurements are made via a CobraNet/AES signal path with 20-bit audio data transmit width.

4. All Cab16o measurements are made using 600-ohm balanced loads at 24 dBu full scale, unless otherwise stated.

5. All Cab16i measurements are made using a 40-ohm source impedance at 24 dBu sensitivity unless otherwise stated.

6. All measurements are made with gain/attenuation set for unity unless otherwise stated.

CAB 16i

CAB16i/16o PERFORMANCE SPECIFICATIONS

ARCHITECTS’ AND ENGINEERS’ SPECIFICATIONS

Audio specifications for the CAB 16i are measured in the digital domain after the signal has been transmitted through an Ethernet hub and converted to AES format.

Audio specifications for the CAB 16o are measured in the analog domain. The test signal is generated digitally in AES format and transmitted to the CAB 16o through an Ethernet hub.

CAB 16i:

The Peavey CAB 16i shall provide sixteen channels of line-level audio transmitted onto an Ethernet network. It shall provide full-bandwidth, high-quality audio transmission via 100BaseT (fast) Ethernet without lossy compression techniques, dropouts or signal degradation by employing CobraNet audio transmission protocol to make Ethernet signal distribution deterministic. It shall employ 24-bit A/D converters with 16, 20, or 24-bit selectable transmission quantization utilizing a 48 kHz sampling rate.

It shall have a frequency response from 20 Hz to 20 kHz, +0/-0.5 dB or better. Its total harmonic distortion shall be no more than 0.01% between 20 and 20 kHz with a +4 dBu input signal and 20 dB of headroom. It shall have a dynamic range of not less than 106 dB A-weighted/ 104 dB unweighted. Input common-moderejection ratio (CMRR) shall be greater than 42 dB at any gain setting. Maximum input level without clipping shall be +30 dBu while maintaining specified CMRR. Input gain shall be from -97.5 dB to +30.5 dB in 0.5 dB steps. The input impedance shall be 9.3 k ohms or higher (pad in).

Front-panel indicators shall display the following status conditions: signal transmission, signal reception, transmission error, reception error, fault indication, link indication, conductor status, RS-485 control indication, and power presence. It shall have sixteen peak-reading headroom meters to monitor the analog level present at the input to the A/D converters, with the top-most red LED indicating 1 dB below A/D clipping.

Rear panel features shall include a detachable AC power cord, an AC power switch, and an AC power receptacle with a built-in auto-resetting circuit breaker. External or internal fuses shall not be acceptable. It shall have two word clock connectors to enable auto-switch-over should a unit fail. It shall employ detachable, euro-style, bare-wire capturing, screw-terminal connectors for ease of hook-up and trouble-shooting. These connectors shall be used for all line-level and RS-485 connections. The unit shall use a standard eight-conductor RJ-45 I/O jack for Ethernet connection.

Its dimensions shall be 19 inches (48.26 cm) wide, 12 7/8 inches (32.70 cm), and 1-3/4 inches (4.44 cm) high without feet. Its net weight shall be 9.5 pounds (4.3 kg), and its 1 rack-unit (1-3/4"), fan-cooled, steel chassis shall be finished in gray powder coat.

It shall consume no more than 32 watts of power and draw no more than 500 milliamps rms of continuous current with an AC line input of 120 Volts rms. Maximum inrush current at turn-on shall be no more than 31 Amps peak. It shall be UL, CUL, CE listed and comply with FCC part 15, A. The unit shall be Peavey Electronics Corporation model CAB16i.

CAB 16o:

The Peavey CAB 16o shall provide sixteen channels of line-level audio transmitted from an Ethernet network. It shall provide full-bandwidth, high-quality audio transmission via 100BaseT (fast) Ethernet without lossy compression techniques, dropouts or signal degradation by employing CobraNet audio transmission protocol to make Ethernet deterministic. It shall employ 24-bit D/A converters with 16, 20, 24,-bit selectable transmission quantization utilizing a 48 kHz sampling rate.

It shall have a frequency response from 20 Hz to 20 kHz, +0/-0.5 dB or better. Its total harmonic distortion shall be no more than 0.01% between 20 and 20 kHz with a +4 dBu output signal and 20 dB of headroom. It shall have a dynamic range of not less than 110 dB A-weighted / 108 dB unweighted. Maximum output level shall be +24 dBu with a load of 600 ohms

or greater while still meeting the frequency response specification. Gain shall be adjustable from -97.5 to +30.5 dB in

0.5 dB steps. The balanced output impedance shall be 102.2 ohms and designed to drive 300 ohm loads or greater while maintaining the specified frequency response.

Front-panel indicators shall display the following status conditions: signal transmission, signal reception, transmission error, reception error, fault indication, link indication, conductor status, RS-485 control indication, and power presence. It shall have sixteen peak-reading headroom meters to monitor the analog level present at the output of the D/A converters, with the top-most red LED indicating 1 dB below D/A clipping.

Its dimensions shall be 19 inches (48.26 cm) wide, 12 7/8 inches (32.70 cm), and 1-3/4 inches (4.44 cm) high without feet. Its net weight shall be

9.5 pounds (4.3 kg), and its 1 rack-unit (1-3/4"), fan-cooled, steel chassis shall be finished in gray powder coat.

It shall consume no more than 33 watts of power and draw no more than 550 milliamps rms of continuous current with an AC line input of 120 Volts rms. Maximum inrush current at turn-on shall be no more than 31 Amps peak. It shall be UL, CUL, CE listed and comply with FCC part 15, A. The unit shall be Peavey Electronics Corporation model CAB 16o.

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