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6

Unpacking Your Amplifier

Warning!

Under no circumstances should you consider unpacking your
amplifier without adequate assistance, as both personal
injury and damage to the product is likely unless you follow
the procedures listed below.

The shipping weight of your Dual Monaural Power Amplifier is over 100 lbs. (45
kg)—the Nº333, for example, weighs in at 150 pounds (68 kg)! Any freight this
massive must be handled with extreme care to avoid injury. At least two strong
people are required to unpack these amplifiers safely.

Included with your new Mark Levinson amplifier is two pairs of knit, white
gloves designed to assist you in the initial unpacking and placement of your new
purchase. Please accept them as a token of our appreciation for having purchased
one of our products.

  

Caution!

Do not attempt to lift your power amplifier  from its packing
carton alone.
Never attempt to lift your power amplifier while bending from
the waist.
Always stand as straight as possible and use your leg muscles
to lift your amplifier.

After unpacking your power amplifier, 

keep all packing materials for future

transport

. In the event that you need to ship your amplifier, 

only 

the original,

purpose-designed shipping carton is acceptable. Any other method of shipping
this heavy product will almost certainly result in damage to the amplifier—dam-
age that would not be covered by the warranty.

Carefully inspect your amplifier for possible damage due to shipping. If you dis-
cover any, contact your Mark Levinson dealer immediately.

Warm up/break-in period

Although your Mark Levinson 300-series power amplifier delivers outstanding
performance straight out of the box, you should expect to hear it continue to im-
prove as it reaches its normal operating temperatures and its various components
“break-in.” It has been our experience that the greatest changes occur within the
first 25-50 hours, but that the amplifier will continue to improve in sound quality
for about 300 hours, after which time it remains quite constant.

The only exception to this rule is if power is removed from the unit, allowing it
to cool down. In this case you should expect a brief warm-up period before the
amplifier’s sound quality is at its best. (Fortunately, you will never have to repeat
the full 300 hour break-in period.)

Содержание N 331

Страница 1: ...Madrigal Audio Laboratories Inc Operating Manual Mark Levinson N 333 N 332 N 33 1 Dual Monaural Power Amplifiers...

Страница 2: ...en closure that may be of sufficient magnitude to constitute a risk of electric shock to per sons The exclamation point within an equilateral triangle is intended to alert the user to the presence of...

Страница 3: ...use flammable or combustible chemicals for cleaning audio components 5 NEVER operate this product with any covers removed 6 NEVER wet the inside of this product with any liquid 7 NEVER pour or spill l...

Страница 4: ...4...

Страница 5: ...er Supply 12 Balanced design 12 True Voltage Source 12 Adaptive Biasing of the Output Stage 13 Extensive Protection 13 Front Panel 15 Rear Panel 16 Remote turn on tip polarity 18 Bridged Operation 22...

Страница 6: ...power amplifier keep all packing materials for future transport In the event that you need to ship your amplifier only the original purpose designed shipping carton is acceptable Any other method of...

Страница 7: ...AC mains Note that under these conditions the amplifier cannot respond to remote turn on commands etc Ventilation As a freestanding unit your power amplifier normally has no problem with venti lation...

Страница 8: ...even from one municipality to the next For this reason it is impossible for us to anticipate the requirements of your area with regard to high current AC hookups If you plan to install a dedicated hi...

Страница 9: ...extremely difficult loads we recommend installing a dedicated AC line for the amplifier with 30 ampere capability The operating voltage of the N 333 cannot be changed by the user and any at tempt to...

Страница 10: ...your home entertainment sys tem For compatibility with existing household outlets a standard three conductor 15 ampere IEC standard detachable AC mains cable is provided for use with your amplifier M...

Страница 11: ...mely unlikely to be encountered in normal use The power demands that a single amplifier might conceivably make when being used to reproduce music with actual loudspeakers are substantially lower Still...

Страница 12: ...ting uniformly low power supply impedance seen by the various circuits within the amplifier lays the foundation for both the massive power and the extraordinary finesse that characterizes the 300 seri...

Страница 13: ...al of poorly informed discussion of class A operation over the years Unfortunately the ther mal management problems of true class A operation in a high current output stage are severe and introduce se...

Страница 14: ...aging of power supply components during power up and switches off line once the power supply has been charged Finally your amplifier incorporates a controlled clipping circuit that prevents the output...

Страница 15: ...all times To turn the amplifier off as opposed to standby press and hold the standby button for approximately one second until the front panel indica tor light turns off To turn off even the superviso...

Страница 16: ...of the XLR inputs which were placed there prior to shipment from the factory Save them for possible use at a later date should you want to listen to a friend s single ended cable for example The pin a...

Страница 17: ...to their slave in port up to a maximum of six amplifiers total to support multi amped systems for example communication ports remote tur n on jacks slave out slave in A straight through six conductor...

Страница 18: ...e Mark Levinson Communications Link described above These 1 8 3 5 mm mini jacks allow other components to bring the power amplifier in and out of standby Two such mini jacks are provided to allow dais...

Страница 19: ...positive or red input terminal of the appropriate loudspeaker If biwiring repeat using the other positive or red output post of the amplifier and the positive or red input terminal of the loudspeaker...

Страница 20: ...s switch is lo cated adjacent to the power cord on the rear panel of the amplifier This switch may be used to disconnect the supervisory power supply from the AC mains without having to actually unplu...

Страница 21: ...our AC fuses have blown disconnect your amplifier from the AC mains and contact your Mark Levinson dealer for as sistance Do not attempt to replace these fuses yourself Danger Potentially dangerous vo...

Страница 22: ...or higher that have a greater need for voltage than for current It is not recommended for loudspeakers that have an impedance significantly be low 4 as the speaker s impedance is split by the two halv...

Страница 23: ...eference between the two channels can damage your amplifier by forcing significant currents to flow where they do not belong To bridge your Mark Levinson amplifier using a balanced input signal follow...

Страница 24: ...n practice the most important thing is to be con sistent throughout the system as inconsistency will result in out of phase loudspeakers In turn this results in unstable imaging and poor bass repro du...

Страница 25: ...cuit that includes the loud speakers Important Do not attempt to operate your amplifier in a bridged mode without first strapping the black output terminals together Failure to establish a common grou...

Страница 26: ...26 Single Ended Bridged Input Connection...

Страница 27: ...ic to the loudspeaker in question In general however biamping is done in one of two ways active biamplification or passive biamplification Active biamping refers to the presence of an active electroni...

Страница 28: ...28 Passive biamping wiring diagram...

Страница 29: ...a soft cloth Dampen the cloth with alcohol first and then lightly clean the surface of the amplifier with the cloth Do not use excessive amounts of alcohol that might drip off the cloth and into the...

Страница 30: ...luation Return authorization must first be obtained by either calling or writing the factory prior to shipping the component The factory will pay for return shipping charges only in the event that the...

Страница 31: ...and the Madrigal Technical Services Department locate and repair the difficulty as quickly as possible A copy of the original bill of sale will serve to verify warranty status Please in clude it with...

Страница 32: ...tput 130 mV all models Input sensitivity full output 2 25V for N 333 1 80V for N 332 1 30V for N 331 Power consumption N 333 350W 5 at idle 200W 5 in standby Power consumption N 332 325W 5 at idle 200...

Страница 33: ...33 DUAL MONAURAL POWER AMPLIFIER 3 86 9 8 cm 9 85 25 cm 3 86 9 8 cm 0 425 1 1 cm 9 0 22 9 cm 0 425 1 1 cm 0 45 1 14 17 56 44 6 cm 18 85 47 88 cm 0 257 6 53mm 3 825 9 72cm 9 91 25 17cm 1 22 3 1cm 3 825...

Страница 34: ..._________________________________ _________________________________________________________________ _________________________________________________________________ __________________________________...

Страница 35: ...IES R N 331 DUAL MONAURAL POWER AMPLIFIER 3 86 9 8 cm 9 85 25 cm 3 86 9 8 cm 9 0 22 9 cm 0 31 78 cm 17 56 44 6 cm 14 36 36 47 cm 18 85 47 88 cm 0 257 6 53mm 3 825 9 72cm 9 91 25 17cm 1 22 3 1cm 3 825...

Страница 36: ..._____________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______...

Страница 37: ...37...

Страница 38: ...is a registered trademark of Madrigal Audio Laboratories Inc a Harman International company MADRIGAL AUDIO LABORATORIES R Madrigal Audio Laboratories Inc 2081 South Main Street P O Box 781 Middletown...

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