Marshall Electronics AR-DM2X-X Operating Instructions Manual

24

Warranty

Marshall Electronics warranties to the first consumer that this AR-DM2X-X Audio Monitor will, under normal use, be free
from defects in workmanship and materials, when received in its original container, for a period ofoneyearfromthe
purchase date. This warranty is extended to the first consumer only, and proof ofpurchase isnecessarytohonorthe
warranty. If there is no proof of purchase provided with a warrantyclaim,MarshallElectronicsreservestherightnotto
honor the warranty set forth above. Therefore, labor and parts may becharged totheconsumer. Thiswarrantydoesnot
apply to the product exterior or cosmetics. Misuse, abnormal handling, alterations or modifications in design or
construction void this warranty. No sales personnel of the seller or any other person is authorized tomake anywarranties
other than those described above, or to extend the duration of any warranties onbehalfofMarshallElectronics,beyond
the time period described above. Due to constant effort to improve products and product features, specifications may
change without notice.

Marshall Electronics

, Inc.

1910 EastMaple Ave.

El Segundo, CA 90245

Tel: [phone] • Fax: [phone]

www.LCDRacks.com • [e-mail]

v1.0

Marshall Electronics

AR-DM2X-X

Digital Audio Monitor with Dolby™ / Dolby E™ Capability

Operating Instructions

2 23

Specifications (continued)

Input / Output Modules

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ARDM-HDSDI Input Module

Inputs: 1 x SDI (75Ω BNC) – 16 channels embedded audio

Outputs: 1 x SDI Equalized Loop-Through (75Ω BNC)

SDI Formats: 525i, 625i, 720p, 1080i, 1080p
SDI Standards: SMPTE 259M, 292M, 274M, 296M, 260M
Audio Coding: PCM, DOLBY E, DOLBY DIGITAL (AC-3)
Sample Rates: 44.1kHz, 48kHz

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ARDM-AES-BNC Input Module

Inputs: 4 x AES/EBU (Unbalanced 75Ω BNC)

Outputs: 4 x AES/EBU (Unbalanced 75Ω BNC) Passive Loop-Through

Formats: Professional and Consumer (SPDIF)
Audio Coding: PCM, DOLBY E, DOLBY DIGITAL (AC-3)
Sample Rates: 44.1kHz, 48kHz

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ARDM-AES-XLR Input Module

Inputs: 4 x AES/EBU (Balanced 110Ω XLR-F, via DB-25 Connector)

Outputs: 4 x AES/EBU (Balanced 110Ω XLR-M via DB-25 Connector) Passive Loop-Through

Formats: Professional and Consumer (SPDIF)
Audio Coding: PCM, DOLBY E, DOLBY DIGITAL (AC-3)
Sample Rates: 44.1kHz, 48kHz
DB-25 Pinout: “Tascam” Standard Pinout (Mogami GOLD-AES-TD-DB25-XLR-05 Break-Out Cable Included)

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ARDM-AA-8XLR Input Module

Inputs: 8 x Analog (Balanced XLR-F via DB-25 Connector)
Reference: 0, 4, 6, or 8dBu = -20dBFS (Selectable)
DB-25 Pinout: Mogami GOLD-DB25-XLR-05 Break-Out Cable Included

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ARDM-AES-4OUT Output Module

Outputs: 4 x AES/EBU (Unbalanced 75Ω BNC)

Formats: Professional and Consumer (SPDIF)
Audio Coding: PCM, DOLBY E, DOLBY DIGITAL (AC-3)
Sample Rates: 44.1kHz, 48kHz

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ARDM-AA-2OUT Output Module

Outputs: 2 x Analog (Balanced XLR)
Reference: -20dBFS = 8dBu

22

Specifications

AR-DM2X-X Audio Monitor

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METERS

AR-DM2-1

Meter Type: 16 x 1 LED Signal Presence Indicators
Meter Dynamics: Not Available

AR-DM21-B

Meter Type: 16 x 10 Segment LED Bar Graph
Meter Dynamics: Simultaneous VU & PPM (True
Peak)
Meter Scale: 0 to -66dB

AR-DM22-B

Meter Type: 16 x 20 Segment LED Bar Graph
Meter Dynamics: Simultaneous VU & PPM (True
Peak)
Meter Scale: 0 to -66dB

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ACOUSTIC

AR-DM2-1 / AR-DM21-B

Speaker Power Output: Left/Right RMS @ 4Ω: 10W,

14W Peak
Peak Acoustic Output: 100dB SPL
Headphone Power Output: 150 mW

AR-DM22-B

Speaker Power Output:

Left/Right RMS @ 4Ω: 10W, 14W Peak

Woofer RMS @ 4Ω: 25W, 35W Peak

Peak Acoustic Output: 104dB SPL
Headphone Power Output: 150 mW

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ELECTRICAL

AR-DM2-1, AR-DM21-B

Power Consumption: Lessthan 45W
Voltage Requirement: 12-24 VDC

AR-DM22-B

Power Consumption: Lessthan 45W
Voltage Requirement: 100VAC-230VAC

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MECHANICAL
AR-DM2-1

Rack Height: 1 RU
Weight (w/o modules): 3.7 lbs.

AR-DM21-B

Rack Height: 1 RU
Weight (w/o modules): 3.7 lbs.

AR-DM22-B

Rack Height: 2 RU
Weight (w/o modules): 8.85 lbs.

3

Intentionally Left Blank

4

Intentionally Left Blank

21

Module Installation (continued)

DOLBY Module Installation (continued)

4. After removing the top panel of the audio monitor, locate the DOLBY module slot labeled J12 on the main board.

5. Insert the ARDM-D552 module into slot J12 at a 45° angle to the main board. Ensure that the board is correctly
oriented (The largest components on the module should be facing up).

6. Slowly push the module down so that it is parallel to the main board. Two metal brackets on either side of the slot will
snap into place over the edges of the module, holding it place. If the module does not move downwards, check the
orientation of the board to make sure it is not upside down. Do not force the module into place if it does not move

easily.

7. To remove the module, push aside the metal brackets on each side of the slot so that the module is release upward.

8. Close the AR-DM2X-X Audio Monitor by re-fastening the 14 screws on the top panel.