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AUDIBLE ILLUSIONS

Hand-crafted in the USA

 

 

Modulus 3B Preamp

$3895 retail - call for our price
Available in black or silver

FREE SHIPPING

The Audible Illusions Modulus 3A, introduced in 1996, was just named one of the 12 (#8) most significant Preamps of all time by The Absolute Sound. "The M3A delivered reference-caliber sound quality at an affordable price...it excelled in transient quality and soundstage transparency; its textural liquidity was also a most satisfying testimonial to a classic tube heritage." Fast forward 16 years to the new and even better M3B. If you love vinyl you won't find a better preamp at or near this price.


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 faceplates and control knobs available as a special order.

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.

M3B SPECIFICATIONS
Overall Gain: 58dB at 1kHz
Tube Compliment: 4-6922 or 6H23EB twin-triodes, graded & matched
Weight: 20.5 lbs, 24 lbs (shipping weight)
Dimensions: 19"W x 3.5"H standard rack
Chassis is 17"W x 11"D x 3"H
Power Supply, 6"W x 10"D x 5"H
Muting:45 second warm-up and automatic brown-out protection
Power Requirements: 115-125VAC, 60Hz
45 watt maximum. 6 foot IEC Line Cord, supplied
Optional 100, 220, 230, 240 50-60Hz transformers.

PHONO SECTION
Gain: 28dB at 1kHz
Frequency Response: +/- .25dB of RIAA from 20hz to 20kHz
Signal Phase: Non-Inverting
Signal to Noise: 74dB below a 5mV input wideband
Distortion: Less than .015% at 20 kHz
Input Impedance: 47 kOhms
Phono Overload: 1.2v rms at 1 kHz (100k load)
750mv rms at 1 kHz (IHF load)

HIGH LEVEL SECTION
Gain: 30dB, Tape & S/S Processor 0dB
Frequency Response: Within +/-1 dB
2Hz to 100kHz measured w 1-1 probe
(50 kOhms, 100pf load)
Signal to Noise: 90dB below 1.5V rms output wideband
Input Impedance: 50kOhm - all
Output Impedance: Main-1.2 kOhms, Tape-150 Ohms
Distortion: .10% at 1.5V rms, 20-50 kHz, into 50kOhm load. Less than .12% THD at 1v out into IHF load
Signal Phase: Main Outputs - Inverting
Tape Outputs - Non-Inverting
Maximum Input: 9v rms.

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L3 Line Stage Preamp

$3695 retail - call for our price
Available in black or silver

FREE SHIPPING

Need a great Preamp, but not a phono stage? The L3 is your ticket. Same Audible Illusions quality as the legendary Modulus 3A, now the 3B. The L3 has it all including a remote, and follows the tradition, "simpler is better."


Control Functions: Master Stereo Volume, L&R Stepped Attenuator Balance Controls, Source-Tape, External S/S Processor, Mute and Power. Remote selects Stereo Volume Up/Down, Muting.
Input Selection: CD, DVD, Tuner, External Phono, Video, Aux, Tape, External S/S Processor.
Output Selection: Main, Tape, External S/S Processor.
Optional: Brushed Aluminum, Mirror-Finish, and Nickel-Silver.

Features:
Circuit Design is Pure Class-A, Single-Ended Triode, Zero Feedback, Dual-Mono.
Audio Circuit has no Cathode Followers or Buffers.
To prevent unwanted AC-induced distortions, the L3 features an External Power Supply housing three separate supplies and a large-shielded, custom-wound transformer.
In the main chassis, four-separate, fully-regulated FET power supplies drive the audio circuitry in addition to separate filament supplies.
Automatic-timed muting with Tri-Color LED indicator.
Low-light Illumination for Selector Switch and Master Volume Control Knobs.
Standby Mode avoids cold starts and prolongs tube life and circuit components.
Active Tape Output and External S/S Output Buffers are FET regulated, set for unity-gain.
All circuit boards are hand-soldered using the finest silver solder available. All polypropylene and polystyrene film capacitors used are proprietary designs of Audible Illusions. Resistors are precision 1% Holco and Roederstein.
Proprietary gold-plated RCA Jacks with Teflon insulators.
Master stereo volume is laser-trimmed Alps. Balance Controls are Precision Stepped Attenuators.
Handcrafted in the USA.

L3 TECHNICAL SPECIFICATIONS
Gain: 30dB, Tape & S/S Processor 0dB
Distortion: .10% at 1.5V rms, 20-20kHz,
into 50kOhm. Less than .12% at 1V out 20-20kHz into IHF load
Frequency Response: Within +/-1dB
2Hz to 100kHz measured w 1-1 probe/50 kOhms,100pf
Signal to Noise: 90dB below 1.5V rms output wideband
Max Input: 9V rms
Signal Phase: Main Out-Inverting, Tape and S/S Processor-Non Inverting
Input Impedance: 50kOhm - all
Output Impedance: Main-1.2 kOhms Tape, S/S Processor-150 Ohms
Muting: 45 second warm-up and automatic brown-out protection
Tube Compliment: 2-6922, 6H23EB twin-triodes, graded & matched
Power Requirements: 115-125VAC, 60Hz 45 watt maximum. 6 foot IEC Line Cord-Supplied.
Optional 100, 220, 230, 240 50-60Hz transformers.
Dimensions: 19"W x 3.5"H standard rack mount
Chassis is 17"W x 11"D x 3"H
Power Supply, 6"W x 10"D x 5"H
Weight: 19.5 lbs, 24 lbs (shipping wt.)


 

 

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