Audible Illusions
MODULUS 3B Full Function Stereo Preamplifier

Introducing Audible Illusion's
MODULUS 3B Full Function Stereo Preamplifier

Audible Illusions MODULUS 3B Full Function Stereo Preamplifier

The MODULUS 3B Full Function Stereo Preamplifier is a testament to the pioneering spirit of Audible Illusions. With over 40 years of experience and over 20,000 Modulus preamps manufactured, this product has set new standards for sonic performance and reliability.

Product Specifications for MODULUS 3B Full Function Stereo Preamplifier

  • Circuit Design: Dual-Mono, Class A, Single-Ended Triode, Open Loop
  • Power Supply: External with three separate supplies
  • FET Power Supplies: Five separate, fully-regulated in the main chassis
  • Audio Circuit: No Cathode Followers or Buffers
  • Soft-Start Circuit: Standby for prolonged tube life
  • Muting: Automatic-Timed
  • Control Knobs: Low-Light Backlit Illumination
  • Volume Controls: Precision Stepped Attenuators for Separate
  • RCA Jacks: Proprietary Gold-Plated with Teflon Insulators
  • Circuit Boards: Hand-Soldered with Silver-Bearing Solder
  • Capacitors: Proprietary Design Polypropylene, Teflon, and Polystyrene

Detailed Overview of MODULUS 3B Full Function Stereo Preamplifier

The latest generation, the M3B, brings a host of features and refinements. The circuit boards have been redesigned to further simplify the signal path, improve switching, and reduce vibration. This design utilizes special direct relay switching for improved definition.

The M3B is one of the few full-function preamplifiers available today. It offers unparalleled musical performance for both vinyl record and CD lovers. It is the finest preamplifier we have ever made and continues to be the benchmark by which many others are compared.

Frequently Asked Questions about the
MODULUS 3B Full Function Stereo Preamplifier

What is the minimum break-in period for A.I. equipment?

It has become common knowledge that all high-end audio products require a break-in/burn-in period. Audio equipment can sound somewhat harsh and two dimensional until various internal components have broken in. Minimum “break-in” time for our preamps is 3-4 weeks of normal operation.

Should power conditioning or noise filtering equipment be used?

We believe that our tube preamplifiers should be plugged directly into a discrete wall socket providing the AC is reasonably clean. However, if excessive residue of DC or other artifacts are floating on the AC line, we then recommend a quality conditioning device.

What is the normal delivery time for A.I. equipment from date of purchase?

All Audible Illusions products are “made to order” and require a minimum of 2-4 weeks for delivery from time of purchase. However, for convenience to their customers, some of our major dealers do maintain limited stock.

Audible IllusionsMODULUS 3B Full Function Stereo Preamplifier