Lexicon NT Series Amplifiers
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 8Ω, or 2 channels at 120 watts plus 1 channel at 400 watts, or 2 channels at 400 watts. This provides complete flexibility in any present or future audio or video system.
With 4 discrete channels available, the 412 is an excellent choice to
Model 501
The 501 power amplifier consists of 2 amplifier modules, each with its own +60V power supply and 8 custom power transistors, for a total of 16, or 32 per stereo pair. The 2 modules can be configured in either Series or Parallel* mode to form a single mono power amplifier capable of up to 800 watts. The Series mode connects the modules in a bridged configuration. The output voltage swing is thus additive, and is appropriate for driving loads from
*As the impedance ranges describe nominal, not minimum, impedance, it is almost never advisable
to use Parallel mode for direct connection to a speaker. Parallel mode is generally only useful when abnormally low impedances (1Ω or less) are created from parallel wiring of multiple speakers.
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