Madrigal Audio Five Channel Amplifier Spécifications

Madrigal Audio Laboratories, Inc.Operating ManualMark Levinson®Nº 333Nº 332Nº 331Dual MonauralPower Amplifiers

10Operating Voltage,Nº332 & Nº331Your Mark Levinson Dual Monaural Power Amplifier is characterized by its re-markable ability to pass a musical si

11Nº 331 AC mains maximumcurrent requirements100V 120V 200V 210V 220V 230V 240VOff .1 .09 .05 .047 .045 .043 .042Standby 1.08 0.90 0.54 0.52 0.49 0.47

12Special Design FeaturesCongratulations on your purchase of a Mark Levinson Nº 300-series Dual Monau-ral Power Amplifier. While your new amplifier is

13test of the Nº333 at maximum power requires about 45 amperes at 120V. (Thelaws of physics refuse to be cheated. Long-term, you cannot deliver more p

14In addition, the AC input to each transformer is fused to protect against excessivecurrent conditions such as driving shorted outputs. Inrush limiti

15MADRIGAL AUDIO LABORATORIESRNº 333DUAL MONAURALPOWER AMPLIFIER21Front Panel1STANDBY BUTTONWhen power is first applied to the power amplifier (if you

16DUAL MONAURAL POWER AMPLIFIER Nº 333communication portsremote turn-on jacks~ac mainsinputs inputs124356Rear PanelCaution! Turn the volume on your pr

172 SINGLE-ENDED INPUTSThese RCA connectors accept single-ended inputs from preamplifiers withsingle-ended (RCA) outputs. Single-ended input signals a

18In addition, should a fault condition cause any amplifier’s protection cir-cuitry to activate, it can report the nature of the problem to a linked M

195 SPEAKER BINDING POSTSThe Mark Levinson 300-series amplifiers are equipped with custom made,gold-plated, high-current binding posts for output term

2CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENCAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DONOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.REFER S

206 AC MAINS CORD AND AC MAINS SWITCHConventional IEC standard power cords cannot be used in the Nº 333, dueto the potential current requirements of N

21Two fast-acting 30 ampere fuses are located inside the Nº 333, on the ACmains module. The Nº332 uses two 15 ampere slo-blo fuses, and the Nº331uses

22Bridged OperationYour Mark Levinson amplifier has been designed to be extremely versatile.Should your needs change or grow over time, you may wish t

23The “normal” leg of the Madrigal Balanced Bridging Input Adapter will be markedwith a red stripe to indicate positive polarity, and the inverted leg

243 CONNECT ONE END OF THE BALANCED BRIDGING OUTPUT ADAPTERTO TWO SIDE-BY-SIDE BLACK OUTPUT TERMINALSAll Mark Levinson amplifiers have two sets of out

25Single-Ended Bridging Kit123123Female RCA InputSkirt: signal groundCenter: signal + (non-inverting)Male XLR Output (normal)Pin 1: signal groundPin 2

26Single-Ended BridgedInput ConnectionDUAL MONAURAL POWER AMPLIFIER Nº 333communication portsremote turn-on jacks~ac mainsinputs inputsMadrigal Single

27BiamplificationIn contrast to bridged operation (wherein a two channel amplifier is “fooled” intobehaving as a single, larger amplifier), biamplific

28Passive biampingwiring diagramDUAL MONAURAL POWER AMPLIFIER Nº 333communication portsremote turn-on jacks~ac mainsinputs inputsBalanced Y-adapterfro

29Care & MaintenanceTo remove dust from the cabinet of your amplifier, use a feather duster or a lint-free soft cloth. To remove dirt and fingerpr

3Important Safety InstructionsPlease read all instructions and precautions carefully and completely before operating your Mark Levinson® poweramplifie

30U.S. and Canadian Warranty90-Day Limited Warranty This Mark Levinson® product is warranted to be free from defects in material andworkmanship under

31Obtaining ServiceWe take great pride in our dealers. Experience, dedication, and integrity makethese professionals ideally suited to assist with our

32SpecificationsThe correlation between published specifications and performance is unreliable.Measurements of the your amplifier yield excellent resu

33Dimensions: Nº 333 & Nº332MADRIGAL AUDIO LABORATORIESRNº 333DUAL MONAURALPOWER AMPLIFIER3.86"9.8 cm9.85"25 cm3.86"9.8 cm0.425&quo

34Dimensions: Nº 333 & Nº332(cont.)1.25"3.16 cm0.23"58 mm0.45"1.14 cm17.38"44.15 cm10.3"26.16 cm19.11"48.54 cm18.85&

35Dimensions: Nº 3312.23"5.66 cmMADRIGAL AUDIO LABORATORIESRNº 331DUAL MONAURALPOWER AMPLIFIER3.86"9.8 cm9.85"25 cm3.86"9.8 cm9.0&

36Dimensions: Nº 331 (cont.)0.23"58 mm0.45"1.14 cm9.31"23.6 cm19.11"48.54 cm18.85"47.88 cm2.23"5.6 cm2.23"5.6 cmIns

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630319-2 © 6/1998 Madrigal Audio Laboratories, Inc. All rights reserved. Printed in U.S.A.is a registered trademark of Madrigal Audio Laboratories, In

4From all of us at Madrigal Audio Laboratories, thank you for choosing your MarkLevinson 300-series Dual Monaural Power Amplifier.A great deal of effo

5Table of ContentsUnpacking Your Amplifier ... 6Warm up/break-in period ...

6Unpacking Your AmplifierWarning! Under no circumstances should you consider unpacking youramplifier without adequate assistance, as both personalinju

7Placement ConsiderationsPRECAUTIONFor your protection, review “Important Safety Instructions” and“Operating Voltage” before you install your amplifie

8Operating Voltage, Nº333Your Mark Levinson Dual Monaural Power Amplifier is characterized by its re-markable ability to pass a musical signal with ut

9The power demands that a single Nº 333 might conceivably make when beingused to reproduce music with actual loudspeakers are substantially lower, saf