Rane AM 2 Data Sheet

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PRELIMINARY DATA SHEET

SHIPS APRIL 2010

AM 2

AUTOMIXER

MIC INPUTS

4

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General Description

e Rane AM 2 is both an 8 channel, gain-sharing automatic mic
mixer and simultaneously a Rane RAD. Use it as a standalone
mic-only mixer, add more gain-shared mics using up to seven ad­ditional AM 2 Automixers, and/or use the RAD Port to transport
the mic mix via a Rane Mongoose to a CobraNet network. If you
need manually mixed line audio sources, including USB Audio
I/O, see the Rane AM 1 Automixer.

Each of the eight XLR Mic Inputs oers front panel input
Level controls feeding a gain-sharing automatic mixer. Rear panel,
3-position selectors support dynamic mics (no phantom power),
condenser mics (48 V), or line input optimized for wireless re­ceiver outputs (+10 dBu max). All Level controls come with front
panel signal and overload indicators.

e AM 2 is optimized for automixing speech. e mic inputs
have a xed 100 Hz to 7 kHz bandpass lter to provide the best
voice-only automatic mixing using the gain-sharing algorithm.

e XLR Main Output can be set to mic- or line-level to feed
a mic snake or a +20 dBu max balanced input. When an AM 2 is
used standalone, both the XLR Output and the RAD Port output
audio are aected by the front panel Output Level control. When
the AM 2’s Cascade Output feeds a downstream Rane AM 1 or
AM 2, the front panel Output Level control only aects the XLR
Output.

e USB port is solely used as a rmware update port if future
updates are needed.

e RAD Port sends the AM 2 Output mix to a Rane Mon­goose for routing to output RADs and/or a CobraNet network.
Cascade IN accepts audio and data from an upstream AM 2’s
Cascade OUT. is adds eight more mic channels to the initial
AM2 creating a 16-channel gain-sharing automix. A maximum

AUDIO TX

AUDIO RX

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of eight AM 2s can be cascaded, oering up to 64 gain-shared
mics. If an AM 1 is included, it must be the nal device in the
chain of no more than eight. Simply connect Cascade OUT ports
to Cascade IN ports and the AM 1 RAD Port to the Mongoose.
Both the Cascade IN port and the Cascade OUT/RAD Port have
status indicators to aid setup and troubleshooting.

Rear panel Fault, Locate, USB and Power indicators inform
head-scratchers of device errors, the AM 2’s physical location,
positive USB audio device OS registration and AC power status.

Duplicate Locate and Power indicators on the front help in­stallers physically locate and verify AC power to the AM 2.

Universal IEC power on the rear supports 100 to 240 VAC
and 50/60 Hz.

Features

INPUTS:

• Gain-Sharing Automatic Mic Mixing:

• 8 XLR Inputs with Level controls & Sig/OL indicators.

• Select Mic, Mic with 48V phantom, or Line level.

OUTPUT:

• XLR Main with Mic/Line switch, Level control & Sig/OL.

• Rane RAD and Cascade IN RJ-45 Ports:

• RAD Port sends Output to Mongoose for CobraNet transport.

• Cascade IN connects up to seven more Rane AM 2 Automixers.

AM

AUTOMIXER

Rear Panel

AM 2

MADE IN

U.S.A.

RANE CORP.

100-240V

THIS DEVICE COMPLIES

WITH PART 15 OF THE FCC

RULES FOR A CLASS 'B'

COMPUTING DEVICE.

FAULT

LOCATE

POWER

ACN 001 345 482

13 WATTS50/60 Hz

24 VDC @ 100 mA

CASCADE

USB

DATA

USB

RAD PORT

OUTPUT MIC INPUTS

INOUT

MIC

LINE

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

CLASS 2 WIRING

MIC +48V

MIC +0V

12345678

MIC +48V

MIC +0V

LINE

LINE

Data Sheet - 1

AM 2

AUTOMIXER

Features and Specifications

XLR Inputs

Phantom Power +48V per IEC 60268-15, Selectable in Mic mode
Maximum Input (Mic/Line) -17 / +10 dBu
Input Impedance 2.01k, 1%
Input Gain Range (Mic/Line) -80 to +34 dB / -80 to +26 dB
Frequency Response 100 Hz to 7 kHz, +0/-3 dB, -20 dBFS, Extended vocal range

Main Output

Maximum Output (Mic/Line) -20 / +20 dBu, 10 kΩ load
Output Impedance (Mic/Line) 51 / 300 Ω, 1%
Output Gain Range -80 to 0 dB
Frequency Response 100 Hz to 7 kHz, +0/-3 dB, -20 dBFS
Dynamic Range 101 dB re +20 dBu, 20 kHz BW, A-weighted, 0 dB gain, 10 kΩ load
THD+N < 0.02%, 100 Hz to 7 kHz, A-weighted, +4 dBu, 0 dB gain, 10 kΩ load

LED Meters

Signal -50 dBFS, Green LED, Peak-Reading
Overload -0.5 dBFS, Red LED, Peak-Reading

RAD / Cascade In / Out

Sample Rate and Resolution 48 kHz @ 24 bits

Unit

Universal Line Voltage 100 to 240 VAC, 50/60 Hz, 13 W
Agency Listing UL/cUL/CE
Size 1U 1.75"H x 19"W x 8.5"D (4.4 cm x 48.3 cm x 21.6 cm)
Weight 5 lb 4 oz (2.4 kg)
Shipping Size 4.5" x 20.3" x 13.75" (11.5 cm x 52 cm x 35 cm)
Shipping Weight 9 lb (4.1 kg)

Note: 0 dBu = 0.775 Vrms

Mono, Balanced, Mic/Line Selectable

Mono, Balanced, XLR

Mono, peak detecting

8P8C (RJ-45) Connector

All Steel Construction

Architectural Specifications

e 1U audio device shall provide 8 rear-mounted XLR inputs
automatically mixed using a gain-sharing algorithm. Each input
shall permit selectable mic, mic with 48 volt phantom power,
or line input level intended for wireless receiver outputs. Front
panel mic input level controls for each input shall indicate signal
and overload and an overall output level control with signal and
overload shall be provided.

When used standalone without cascading addition mics, ac­commodation for two, post-level audio outputs shall be provided.
One on a single XLR male balanced analog output with mic/
line selector switch and the second via a Rane RAD Port on
RJ-45 providing 24-bit, 48 kHz PCM digital audio transport to

Data Sheet - 2

a CobraNet network via a Rane Mongoose. When cascading addi­tional gain-shared mics downstream, the front panel output level
control only aects the XLR Output.

A USB Data port shall be provided to support rmware up-

dates should they be needed.

A cascade input RJ-45 shall permit gain-sharing mic mix ex­pansion in groups of 8 channels from external automixer devices.
Up to 64 gain-shared mics with a maximum of eight 1U devices
shall be supported. To input line audio sources or perform head­phone cueing, a Rane AM 1 is supported.

Universal 100 to 240 volt AC, 50 or 60 Hz operation shall be
provided on an IEC rear panel plug.

e unit shall be a Rane AM 2.

AM 2

INPUT

INPUT

CASCADE INPUT

INPUT

INPUT

INPUT

INPUT

INPUT

INPUT

+48V PHANTOM / MIC / LINE

AUTOMIXER

1

2

3

1

+48V PHANTOM / MIC / LINE

2

2

3

1

+48V PHANTOM / MIC / LINE

3

2

3

1

+48V PHANTOM / MIC / LINE

4

2

3

1

+48V PHANTOM / MIC / LINE

5

2

3

1

+48V PHANTOM / MIC / LINE

6

2

3

1

+48V PHANTOM / MIC / LINE

7

2

3

1

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

LEVEL

SIG/OL

SIG/OL

SIG/OL

SIG/OL

AUTO

SIG/OL SIG/OL

SIG/OL

SIG/OL

GAIN-

SHARING

MIX

OUTPUT
LEVEL

MIX OUT

CASCADE OUT

Block Diagram

MIC/LINE

OUTPUT

2

1

RAD PORT / CASCADE OUTPUT

STATUS

3

+48V PHANTOM / MIC / LINE

8

2

3

1

LEVEL

SIG/OL

LEVEL

STATUS

Data Sheet - 3

AM 2

CASCADE

RAD PORT

USB

DATA

OUTPUT MIC INPUTS

12345678

100-240V

13 WATTS50/60 Hz

MADE IN

U.S.A.

RANE CORP.

ACN 001 345 482

AM 2

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

INOUT

USB

LOCATE

FAULT

POWER

THIS DEVICE COMPLIES

WITH PART 15 OF THE FCC

RULES FOR A CLASS 'B'

COMPUTING DEVICE.

24 VDC @ 100 mA

CLASS 2 WIRING

MIC

LINE

CASCADE

RAD PORT

USB

DATA

OUTPUT MIC INPUTS

12345678

100-240V

13 WATTS50/60 Hz

MADE IN

U.S.A.

RANE CORP.

ACN 001 345 482

AM 2

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

MIC +48V

MIC +0V

LINE

INOUT

USB

LOCATE

FAULT

POWER

THIS DEVICE COMPLIES

WITH PART 15 OF THE FCC

RULES FOR A CLASS 'B'

COMPUTING DEVICE.

24 VDC @ 100 mA

CLASS 2 WIRING

MIC

LINE

USB cable
Ethernet (CAT 5)
Audio cable

Powered

Speaker

MENU

MP3

Player

Wireless Receiver

AM 1 Automixer (optional)

AM 2 Automixer

To (optional)

Rane Mongoose

Additional AM 2s (up to seven) All additional mics are gain-sharing

DVD Player

AUTOMIXER

Applications

Facilities and rental agencies are called upon to provide either
equipment, or equipment and operators, for meetings or con­ferences needing A/V support. e equipment providers must
ensure audio quality throughout the event to get repeat business.
However, the provided equipment may be operated by present­ers who have no audio experience. If an operator is sent with the
equipment to set up and manage the system during the presenta­tion, that operator may have minimal audio experience. Pitfalls
abound when interconnecting the system, and managing multi­microphone gain before feedback, mixing and volume. Enter the
Rane AM 2.

AM 1

MADE IN

U.S.A.

RANE CORP.

100-240V

THIS DEVICE COMPLIES

WITH PART 15 OF THE FCC

RULES FOR A CLASS 'B'

COMPUTING DEVICE.

FAULT

LOCATE

USB

POWER

ACN 001 345 482

13 WATTS50/60 Hz

USB

AUDIO

CASCADE IN

RAD PORT

24 VDC @ 100 mA

AUDIO TX

AUDIO RX

COMM

POWER

MAIN OUTPUT

MIC

LINE

e AM 2 makes it easy for an inexperienced operator to
quickly set up and manage multiple microphones for presenta­tions involving up to eight participants with wired or wireless
microphones. When cascading the AM 2 with the Rane AM 1
(sold separately), support for several program audio sources (e.g.,
DVD, laptop, MP3 player) is easily added.

e AM 2 oers a professional integrated solution providing
superior automatic gain before feedback while eliminating opera­tor error with its simple controls. e microphone gain-sharing
algorithm automatically and appropriately attenuates mics not in
use while maintaining the 3 dB per doubling of mics for dierent
talkers (noncoherent signals), and 6 dB per doubling for the same
talker who is directly between two mics (coherent signals).

RECORD

AUX

INPUTS

USB

CHARGE

ONLY

2

5 VDC @ 500 mA

CLASS 2 WIRING

MIC +48V

MIC +0V

MIC +48V

LINE

MIC +0V

MIC INPUTS

MIC +48V

MIC +0V

LINE

LINE

MIC +48V

MIC +0V

12341

LINE

©Rane Corporatio n 10802 47th Ave. W., M ukilteo WA 98275-509 8 TEL [phone] FAX [phone] WE B w ww.rane.com

Data Sheet - 4

Specications subject to change without notice. 1-2010