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M3A Preamlifier (36 KB)

MODULUS 3A FULL-FUNCTION STEREO PREAMPLIFIER

Nineteen years ago Audible Illusions began production of the first Modulus preamplifier, a component that set new standards for sonic performance and reliability. The Modulus 2, introduced in 1985, carried the promise even further, quickly becoming one of the best-selling tube preamplifiers ever made. With the introduction of the Modulus 3 in 1992 and the M3a in 1995, our Modulus preamplifiers have earned a reputation for sonic excellence, construction quality and reliability.

To date over 18,000 Modulus preamps have been manufactured with over 150 excellent product reviews from audio critics around the world.

Adhering to our circuit design philosophy that "Simple is Better" and based on the proven superiority of single-ended, triode-tube designs our engineers continue to refine the preamplifier. Elimination of cathode followers, buffers, negative feedback, paralleling tube output stages, designing new film capacitors and exploring better mechanical interfaces are but a few innovations that has made our company a pioneer in modern-day tube technology.

Today the M3a is one of the few full-function preamplifiers made. For vinyl record and CD lovers alike, this preamp offers unparalleled musical performance. It is the finest preamplifier we have ever made and continues to be the benchmark by which many others are compared.

Control Functions: Dual-Mono, Left & Right Stepped Attenuator Volume Controls, Tape-Source, Subsonic Filter, Stereo/Mono, Muting, On/Off

Input Selection: CD, DVD, Phono, Tuner, Video, Auxiliary, Tape

Output Selection: Main (2), Tape

Optional: Internal, gold-plated, left & right channel circuit boards for low-output M/C phono cartridges. Mirror-Polished, Nickel-Silver and 23k Gold Faceplates. Also, Clear-Anodized faceplates and control knobs.


Features:

  • Circuit Design is Dual Mono, Class-A, Single-Ended Triode, open-loop.
  • External Power Supply, housing three separate supplies, prevents unwanted AC-induced distortions.
  • Main Chassis has five-separate, fully-regulated FET power supplies in addition to separate filament supplies.
  • Audio Circuit has no Cathode Followers or Buffers.
  • Standby Soft-Start Circuit prolongs tube life and circuit components.
  • Automatic-timed muting with tri-color LED.
  • Control Knobs have low-light, backlit Illumination.
  • Separate Volume Controls are Precision Stepped Attenuators.
  • Proprietary gold-plated RCA jacks with Teflon insulators.
  • All circuit boards are hand-soldered with silver-bearing solder. All polypropylene and polystyrene capacitors are proprietary designs of Audible Illusions.

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