MS Series Confidence Monitoring System Owner’s Manual Furman Sound, Inc. 1997 South McDowell Blvd. Petaluma, CA 94954-6919 U.S.A. Phone: (707)763-1010 Fax: (707) 763-1310 www.fur mansound.com E-mail: info@furmansound.
Table of Contents Introduction .............................................................................................. 3 Package Contents .................................................................................... 3 Product Description ............................................................................... 3 Setup and Guided Tour ........................................................................ 4 Analog Audio Monitoring ....................................................
Introduction Thank you for purchasing a Furman MS Series “Confidence” Monitor System. We are confident you will be pleased with the confidence your MS Series monitor will give you about your audio and video signals! Under normal operating conditions, this product will provide reliable, long-term performance without maintenance.
Setup and Guided Tour Operation of the MS Series is basic and straightforward. The controls and operation are mostly intuitive and self-explanatory, but are discussed here in detail to allow any user to operate it successfully. Install the unit in its rack and connect the external power supply to the 5-pin DIN DC POWER INPUT connector on the rear panel. Connect an appropriate line cord to the power input on the supply box, and to the AC mains. The power supply accepts any input voltage from 100 to 240 VAC.
Digital Audio Monitoring On MS Series units equipped for digital audio, stereo digital signal(s) may be connected via the rear panel BNC connector(s) labeled AES1, and, if present, AES2. Only one connector is needed per stereo signal. The digital input(s) conform to the AES/EBU 75 ohm/BNC (AES-3id-1995) standard. Another standard, S/PDIF 75 ohm coaxial, may also be monitored. There are two Signal Present indicators for each BNC digital input.
System Verification The procedure below is the same Final Test performed on MS Series units at the factory. Assuming there has been no apparent damage in shipment, it is not necessary to repeat it. However, it may be desirable to perform it as an initial confirmation of proper operation, as a periodic performance check, or whenever there is doubt about the unit’s operation. Initial Setup The following is done with NO audio or video input to the rear panel connectors. 1. 2. 3. 4. 5. 6. 7. 8.
. The LED DIMMER control comes set for full display brightneess when shipped but can be adjusted to suit the monitoring facilities needs so as not to be distracting if a less than fully bright meter display is desired. Note: The level meter brightness CANNOT be adjusted to “Full Off.” This is to avoid possible operator error and wasted troubleshooting time if turned all the way down.) 8 . With both channels having the same audio present, verify that the PHASE indicator LED is illuminated GREEN.
17. (For non-video units only.) Vary the BALANCE control from left to right and verify that the test signal moves from the left speaker to the right speaker (and left headphone channel to right headphone channel), following the slider’s motion. This concludes the basic system check-out of the product, and it is now ready for in-rack placement. Should any of these tests not perform as indicated, please contact the Furman factory for help or service information.
DC POWER INPUT DC POWER INPUT CHASSIS GROUND CHASSIS GROUND SIG SIG CH 1 CH 1 SIG SIG CH 3 SIG CH 4 AES 1 SIG AES 1 SIG Figure 4 MS2ADV-1 Rear View ANALOG INPUTS CH 2 Figure 3 MS2ADV-1 Front View Figure 2 MS4AD-1 Rear View SIG ANALOG INPUTS CH 2 Figure 1 MS4AD-1 Front View AES 2 SIG VIDEO INPUT -6 +6 SIG SIG +6 GAIN TRIM 0 -6 GAIN TRIM 0 SIG ANALOG OUTPUTS L SIG ANALOG OUTPUTS L R R
Figure 4 System Flow Chart
MS Series Specifications Inputs Analog audio: 2 (or 4) each female balanced XLR CMRR: Differential Input Impedance: Maximum Input Level: Signal present indicator: >90 dB, 20 Hz to 20 kHz 24 kΩ +25 dBu -20 dBu sensitivity Digital audio: (if present) 1 (or 2) each BNC, AES/EBU Resolution: Sampling Frequency: Oversampling: Internal Clock: THD+N: Dynamic Range: Signal to Noise Ratio: Channel Separation: Internal Analog Filter: 24 bit 16 kHz to 96 kHz 8X 256 x Sampling Frequency -83 dB 95 dB 97 dB 95 dB -3
Speakers Type: 2 each, 1.5" x 2.75" full range, acoustically tuned with chassis damping. Each channel driven by 20 Watt amplifier.
