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Lexicon 212 manual

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Table of contents for the manual

  • Page 1

    User Guide Models 212, 312, 412, 225 and 501 Lexicon NT Series Amplifiers[...]

  • Page 2

    Unpa cking and Inspection After unpacking the amplifier, save all packing materials i n case you ever need to ship the unit. Thoroughly inspect the amplifier an d packing materials for signs of d amage. Repo rt any sh ipment damage to the carrier a t once; report equipment malfunction to your d ealer. CAUTIO N RISK OF ELECTRIC SHOCK DO NOT OPEN Thi[...]

  • Page 3

    Dansk Vigtig information om sikkerhed Gem d enne vejledning til senere brug. Følg alle anvisn inger og advarsler på apparatet. Apparat et ska l altid tilsl u tte s den korr e kte spænding. De r henvises til brug sanvisni n gen, der indeholder specifikationer for strømforsyning. Der gøres o pmærksom på , a t ved va rierende d riftsspændin ge[...]

  • Page 4

    Die ses Dreieck auf I hrem Apparat bedeutet daß wichtige Betriebs- und Wartungsanweisungen in der mitgelieferten Dokumentation zu finden sind. Die ses Drei eck auf Ihrem Apparat warnt Sie vo r nicht-isolierter, ge fä hr l i c he r S p a nn un g i m Ge hä u s e ... s t ar k ge nu g um ei ne Berührungsgefahr darzustellen. Deutsch Wichtige S icher[...]

  • Page 5

    Content s Introduction Overvi ew .......................................................... .......................... 1 Models 212 and 225.................................................................................. 2 Model 312 .................................................................................................. 2 Model 412 .....[...]

  • Page 6

    1 Lexicon N T Series Amplifier s Int r oduction Congratulations on your purchase of a Lexicon amplifier. Your amplifier has been designed and manufactured for absolute linearity and stability. Utilizing a unique Quad-Complementary output stage, the NT Series amplifers produce less distortion than even Class A designs, with higher efficiency and bet[...]

  • Page 7

    2 Lexicon N T Seri es Amplifiers Overview Models 212 and 225 The 212 stereo amplifier consists of 2 amplifier modules, each with its own power supply. The channels may be operated independently (1=left; 2=right) for stereo at 120 watts/channel @ 8 Ω , 200 watts @ 4 Ω , or bridged (monaural) to form a single 400 watt amplifier into 8 Ω . The 2[...]

  • Page 8

    3 Lexicon N T Series Amplifier s Model 412 The 412 power amplifier consists of 4 independent amplifier modules, each with its own + 55V power supply, and 4 custom power transistors for a total of 16 output devices. The 412 can be configured to drive 2, 3 or 4 speakers: 4 channels at 120 watts into 8 Ω , or 2 channels at 120 watts plus 1 channel a[...]

  • Page 9

    4 Lexicon N T Seri es Amplifiers Installation Selecting the appropriate installation location for your amplifier is perhaps the single most important factor in ensuring a long trouble-free service life. Al- though the amplifier is very conservatively designed, you must provide some airflow around the unit. If you intend to stack multiple amplifiers[...]

  • Page 10

    5 Lexicon N T Series Amplifier s Lexicon amplifiers do not require any specialized line conditioners, as they have special power supply circuitry designed to reject power line problems like line spikes, surges and RFI. Simply plug each amplifier directly into a line socket. In areas where there is a high likelihood of lightning strikes or other pot[...]

  • Page 11

    6 Lexicon N T Seri es Amplifiers Operation Front Panel LEDs All amplifiers in the Lexicon NT Series are equipped with sophisticated com- parator circuits which detect sources of signal distortion including clipping, excessive DC or supersonic signals, and short circuits in the cabling. Multi- function LEDs on the front panel are provided to alert y[...]

  • Page 12

    7 Lexicon N T Series Amplifier s Bridged Operation Wire multiple amplifier triggers in parallel. Common “zip cord” wire is adequate. (If you find that using audiophile cable for the trigger signal sounds better, feel free to use it, just don’t tell anyone else.) The pin outs on the CP-3 P L U S and DC-1 series have appropriate signals availab[...]

  • Page 13

    8 Lexicon N T Seri es Amplifiers Specifications Models 212,312,412 120 Watts per channel @ 8 Ω , 200 watts @ 4 Ω Bridging channels yields 400 Watts @ 8 Ω Model 225 250 Watts per channel @ 8 Ω , 400 Watts @ 4 Ω Bridging channels yields 800 Watts @ 8 Ω Model 501 500 Watts @ 8 Ω , 800 Watts @ 4 Ω S/N >110dB IM + THD <0.01% Input [...]

  • Page 14

    Lexicon Part # 070-11325 Lexicon Inc. 3 Oak Par k Bedford, MA 01730 Tel 781-280-0 300 Fax 781-280-0490 www.lexicon.com Printed in Canada[...]