Modulus 3B Tube Preamplifier
Possibly more than any other preamplifier, the Audible
Illusions Modulus 3A established itself as a
classic in it's own time. The new Modulus 3B
elevates that level of performance to a whole new realm.
The M3B adds a host of
features and performance enhancements.
Switching – signal does not pass through switches
resulting in better clarity and definition.
Upgraded inter-stage coupling
capacitors - All capacitors in the signal path are film
and foil or Teflon for better resolution and lower noise.
Larger power transformer for
the inboard power supply results in improved performance
in all areas.
Cleaner, more direct signal
path results in greater clarity, lower noise and improved
New audio taper on attenuators
for more precise matching with a broader range of
User adjustable gain settings
The M3B is a deceptively simple design, employing
a single gain stage, class A triode circuit utilizing no
cathode followers or buffers to degrade the sound. It is
a basic design concept that has remained a focus of the
Modulus circuit topology since its inception and is one of
the reasons for the sparkling sonic clarity and resolution.
Inside you'll find a host of superb parts and pieces, along
with excellent quality workmanship and great attention to
detail. The list of parts includes: Teflon solder mask,
OFC circuit board traces, custom film
capacitors and custom stepped attenuators using high quality
metal film resistors.
What is it that makes the M3B such a standout?
I'd have to say it is a balance of strengths with few, very
few, weaknesses. A strong suit has always been the soundstage,
and the M3B competes with most any preamp (almost
regardless of price) in this area. It develops an absolutely
holographic panorama, that is truly a delight to experience.
In sum, it is difficult to fault the
on any count. Look for yourself, but I doubt you'll find
a preamp with this level of performance, build-quality and
reliability at anywhere near the price.
Since the product began life in 1983, more than 18,300
M3A units have been sold worldwide! Quite an accomplishment,
and certainly worthy of the popularity, the M3A
stands on its own as a superb audiophile component of the
highest caliber. The M3B continues that tradition,
building upon the strengths of the legendary M3A.
The M3B is a full
function preamp complete with phono input that will accept
any cartridge with 1mV of output, or greater. For those
using low output moving coil cartridges, optional Gold Phono
Boards are available for increased gain. Designed by the
legendary John Curl, the ultra-quiet pre-preamp boards give
the M3B the ability to handle even very low output MC
cartridges with low noise and superb resolution.
Audible Illusions Modulus 3B - $3495
According to Audible
Illusions, the 6H23NEB is the best tube to use in their
Modulus preamplifiers. Though scarce and rather pricey, A.I.
says these tubes have the best combination of sound quality,
low microphonics, lowest noise and longest life.
The sets are hand selected, fully tested and graded by by
Art at Audible Illusions to be a perfect match for the M3A,
Sold in sets of four, each marked for use in a specific
location within the preamp.
Very limited availability. Get them while you can!