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Operating Manual
Mark Levinson
®
Nº30.5
Reference Digital
Processor
Madrigal Audio Laboratories, Inc.

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  • Page 1 Operating Manual Mark Levinson ® Nº30.5 Reference Digital Processor Madrigal Audio Laboratories, Inc.
  • Page 2 WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
  • Page 3: Important Safety Instructions

    Important Safety Instructions Please read all instructions and precautions carefully and completely before operating your Mark Levinson com- ponent. 1. ALWAYS disconnect your entire system from the AC mains before connecting or disconnecting any cables, or when cleaning any component. 2.
  • Page 4 From all of us at Madrigal Audio Laboratories, thank you for choosing the Mark Levinson Nº30.5 Reference Digital Audio Processor. A great deal of effort went into the design and construction of this precision device. Used properly, it will give you many years of enjoyment.
  • Page 5: Table Of Contents

    Table of Contents Unpacking and Placement ................ 6 Unpacking the Nº30.5 ..................6 Placement of the Nº30.5 ..................6 Operating Voltage ..................7 A Quick Start… .................... 8 Warm up/break-in period ................. 9 Special Design Features ................10 An Intelligent FIFO™ ..................10 Superior isolation between sources ..............
  • Page 6: Unpacking And Placement

    Unpacking and Placement Unpacking the Nº30.5 Unpack your Nº30.5 Reference Digital Processor and PLS-330 Power Supply and remove all accessories from the cartons. Keep all packing materials for future transport. Included with your new Mark Levinson processor is a pair of knit, white gloves designed to assist you in the initial unpacking and placement of your new pur- chase.
  • Page 7: Operating Voltage

    Operating Voltage The PLS-330 is set at the factory (internally) for 100V , 120V , 200V , 230V , 220V , or 240V AC mains operation @ 50 or 60Hz. (230V/50Hz only in European Union countries, in compliance with CE regulations.) This voltage setting cannot be changed by the user.
  • Page 8: A Quick Start

    A Quick Start… We recognize that many people are understandably eager to begin listening to their new components, and that reading the manual is often done (if at all) at a later time—perhaps while listening to music through the new product itself. We strongly recommend that you read this manual thoroughly, as the Nº30.5 Refer- ence Digital Audio Processor incorporates several unusual features which en- hance its operation.
  • Page 9: Warm Up/Break-In Period

    CONNECT THE AC CORD TO THE PLS-300 AND TO YOUR AC OUTLET The AC recepticle for the power cord is located underneath the PLS-330, in the center of the unit. (This design reduces noise by bringing the power into the chassis precisely where it is needed rather than routing it through- out the unit.) The Nº30.5 will take a few moment to initialize and will then be ready to use.
  • Page 10: Special Design Features

    Special Design Features Congratulations on your purchase of the Nº30.5 Reference Digital Audio Processor. The Madrigal design team is confident you will enjoy the outstanding perfor- mance of the Nº30.5 for many years. In case you are interested in technical de- tails, what follows is a brief outline of some of the key technologies in your new processor.
  • Page 11: Superior Isolation Between Sources

    verts to the recovered clock when the long-term data rate from the transport is extremely inaccurate. (Sorry—the digital output of your CD portable will not sound as good as a fine CD transport such as the Mark Levinson Nº31.) One of the advantages of a separate digital audio processor is that you can take Superior isolation between sources the money which might have otherwise been spent on several built-in D/A con-...
  • Page 12: Hdcd® Gain-Matching

    ® HDCD Gain-Matching Some HDCD-encoded recordings are mastered at a level which is noticeably lower (6 dB) than conventional recordings. To avoid unexpected changes in volume when going from one disc to another, the Nº30.5 automatically reduces the volume of all recordings to this “lowest-common-denominator”...
  • Page 13: Front Panel, Nº30.5

    MADRIGAL AUDIO LABORATORIES REFERENCE DIGITAL PROCESSOR Nº 30.5 polarity copy protect aes/ebu emphasis standby invert Front panel, Nº30.5 STANDBY Provided the Nº30.5 is connected to AC power (via the PLS-330), pressing this button takes the Nº30.5 out of “standby” mode, turns the display and enables the front-panel controls.
  • Page 14 DISPLAY INTENSITY Pressing this button varies the brightness of the . Four brightness lev- display els are available. When power is first applied to the Nº30.5 (or when power is restored after an interruption), the is automatically set to its brightest level. display Pressing the button once dims the...
  • Page 15 POLARITY INVERT Pressing this button inverts the polarity of the digital signal, to compensate for polarity differences during the recording process. Some recordings may simply “sound better” when this function is active. While polarity invert is selected, the LED above the button will light. Note: doesn’t affect the digital outputs, and isn’t available polarity invert...
  • Page 16: Display, Nº30.5

    Display , Nº30.5 INPUT ALIAS This part of the Nº30.5’s shows the of the input selected, as display name determined during setup (see “Assigning input names” in the “Installation” section of this manual). To facilitate operation in complex, multi-source systems, the Nº30.5 is ca- pable of displaying a wide variety of names for each of its eight inputs.
  • Page 17 SAMPLING FREQUENCY This part of the Nº30.5’s display shows the of the digi- sampling frequency tal input being processed, expressed in kilohertz (kHz). One of three sam- pling frequencies will be shown: , or 32kHz 44. 1 kHz 48kHz After you press one of the source selection buttons, the Nº30.5 will reduce the volume and the display will show: While the Nº30.5 is attempting to lock onto a digital signal, the display will show:...
  • Page 18: Rear Panel, Nº30.5

    right left analog output analog output balanced analog balanced analog output output communication digital inputs digital outputs ports balanced analog balanced analog output output electrical optical electrical optical digital master slave dc in monitor PUSH PUSH PUSH analog dc in analog dc in Rear panel, Nº30.5 ANALOG OUT...
  • Page 19: Linking Connections

    Connect the left channel’s on the rear panel of the Nº30.5 to audio dc in left audio dc out on the rear panel of the PLS-330; likewise, connect the right channel’s audio dc in on the rear panel of the Nº30.5 to the right au- on the rear panel of the PLS-330.
  • Page 20: Female Xlr Input Connector (Digital)

    DIGITAL DC IN This input accepts DC power from the PLS-330 (via the supplied cable equipped with two-pin connectors). Connect on the rear panel of the Nº30.5 to the dc in (digital) dc out (digi- tal) on the rear panel of the PLS-330. AES/EBU ELECTRICAL DIGITAL INPUTS (1 –...
  • Page 21 Caution! When using a digital recorder (like a DAT) that also allows recording of analog signals, a specific combination of interconnections and settings on the digital recorder, the Nº30.5, and an associated preamplifier may create a “feedback loop” that may damage your system’s loudspeakers.
  • Page 22: Male Xlr Output Connector (Digital)

    ELECTRICAL DIGITAL OUTPUTS These outputs provide , via cables equipped with digital audio signal XLR-type connectors) to a digital processor, digital audio tape recorder, pre- amplifier, integrated amplifier, or receiver equipped with XLR-type digital inputs. Male XLR output Pin 1: Chassis ground connector (digital) Pin 2: DAS (non-inverting)
  • Page 23: Rear Panel, Pls-330

    right analog dc digital dc left analog dc WARNING: BEFORE ATTEMPTING TO OPERATE THIS DEVICE, REFER TO OWNER'S MANUAL FOR PROPER OPERATING INSTRUCTIONS AND SAFETY PRECAUTIONS. HAZARDOUS VOLTAGE AVAILABLE INSIDE; DISCONECT AC ~ MAINS CABLE BEFORE REMOVING COVER. Rear panel, PLS-330 RIGHT ANALOG DC OUT, LEFT ANALOG DC OUT These outputs, one for each channel, provide DC power to the Nº30.5 (via the supplied cables equipped with five-pin connectors).
  • Page 24: Setup And Installation

    Setup and Installation Caution! For your protection, review “Important Safety Instructions” before you install your Nº30.5/PLS-330. The Nº30.5 allows you to assign any of a wide variety of names to each of the Nº30.5 Input Names eight digital inputs, shown below: (any unused input) NOT USED Digital Audio Tape...
  • Page 25: Making Analog Connections

    For electrical digital interconnection, we recommend Madrigal MDC cable. MDC-1 is designed for AES/EBU interconnection (via XLR-type connectors); MDC-2 is designed for SPDIF interconnection (via RCA-type connectors). Both are available in various lengths from your Mark Levinson dealer. Using appropriate cables, connect all your digital source components to suitable inputs on the rear panel of the Nº30.5 processor.
  • Page 26: Making Power Supply Connections

    After making all signal connections, connect the left channel’s Making Power Supply analog dc in Connections the rear panel of the Nº30.5 to the left audio dc out on the rear panel of the PLS- 330; likewise, connect the right channel’s analog dc in on the rear panel of the Nº30.5 to the...
  • Page 27 PRESS THE SELECTED INPUT BUTTON REPEATEDLY UNTIL YOU SEE THE NAME YOU WISH TO USE This action will cause the display to cycle through the list of available names, with the input number appended to the end of each name. For ex- ample, you might wish to change if the digital output of your laserdisc player is plugged into the fourth input, in which case the display...
  • Page 28: Linked Functions

    Linked functions The Nº30.5 has the ability to “link” six of its functions to compatible Mark Levinson components (like the Nº31 Reference CD Transport and the Nº38 or Nº38S Preamplifier). Note: To take advantage of linked functions, you must connect the Nº30.5 to the other components via their communication ports.
  • Page 29: Polarity Link

    When the components are linked, all displays will be set to the same brightness. Pressing display intensity on either component will affect both displays. Polarity link: This links the button on the Nº31’s Polarity link d/a polarity Remote Control to the polarity invert function of the Nº30.5.
  • Page 30: Troubleshooting

    Troubleshooting In general, refer any service problems to your Mark Levinson dealer. Before con- tacting your dealer, however, check to see if the problem is listed here. If it is, try the suggested solutions. If none of these solves the problem, contact your Mark Levinson dealer.
  • Page 31: Care And Maintenance

    Care and maintenance To remove dust from the cabinet of the Nº30.5, use a feather duster. To remove dirt and fingerprints, we recommend isopropyl alcohol and a soft cloth. Caution! Always apply the isopropyl alcohol to the soft cloth and then wipe the Nº30.5 with the dampened cloth.
  • Page 32: U.s. And Canadian Warranty

    Madrigal Audio Laboratories, Inc., P . O. Box 781, Middletown, CT 06457. The extended warranty for this Mark Levinson product is five (5) years from the Five Year Extended Warranty date of purchase.
  • Page 33: Obtaining Service

    Obtaining Service We take great pride in our dealers. Experience, dedication, and integrity make these professionals ideally suited to assist with our customers’ service needs. If your Mark Levinson component must be serviced, please contact your dealer. Y our dealer will then decide whether the problem can be remedied locally , or whether to contact Madrigal for further service information or parts, or to obtain a Return Authorization.
  • Page 34: Specifications

    Specifications The correlation between published specifications and sonic quality is unreliable. A list of numbers reveals virtually nothing. All technical measurements must be sub- ject to qualitative as well as quantitative interpretation. Measurements of the Nº30.5 yield excellent results by any standards. However, only those specifications that apply to its actual operation are included here.
  • Page 35: Dimensions

    Dimensions Nº30.5 Front Dimensions 1-3/4" 2-1/8" (44.5mm) (54mm) 15-3/4" (400.1mm) 7-1/4" (184.2mm) 4-1/4" (108mm) 7/8" (22.2mm) 1/8" (3.2mm) 2-1/4" 11-5/8" 4" (57.2mm) (295.3mm) (101.6mm) 7/8" (22.2mm) 19-3/8" (492.1mm) Nº30.5 Rear Dimensions 1-15/16" 1-13/16" (49.2mm) 2-1/16" (46mm) (52.4mm) 5/16" (7.9mm) 15-1/2" (393.7mm) 7"...
  • Page 36: Nº30.5 Top Dimensions

    Nº30.5 Top Dimensions 1/16" (1.6mm) 1-1/2" (38.1mm) 15/16" (23.8mm) 1-1/16" (27mm) 15-7/16" (392.1mm) 7-1/4" (184.2mm) 11-5/8" 11-5/16" (295.3mm) (287.3mm) 2-1/4" (57.2mm) 7/8" (22.2mm) 7/16" (11.1mm) 2-9/16" (65.1mm) 3/4" (19.1mm) 3/16" 5/16" (4.8mm) (7.9mm) PLS-330 Front Dimensions 15-3/4" (400.1mm) 4-1/4" (108mm) 1"...
  • Page 37: Pls-330 Top Dimensions

    PLS-330 Top Dimensions 7/8" (22.2mm) 15-1/2" (393.7mm) 14" (355.6mm) 14-7/8" (377.8mm) 7/8" (22.2mm) 5-3/4" (146.1mm) 2-7/8" (73mm) 7/8" (22.2mm)
  • Page 38 2081 South Main Street, P.O. Box 781 Middletown, Connecticut 06457 USA Telephone: (860) 346-0896 Fax: (860) 346-1540 http://www.madrigal.com/ MADRIGAL AUDIO LABORATORIES is a registered trademark of Madrigal Audio Laboratories, Inc. a Harman International company HDCD ® and High Definition Compatible Digital ®...

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