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Basis Audio 2800 Signature Vector 4, Synchro Wave Power Supply, Calibrator Base and Vacuum Platter [Expired]
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Professional packing and shipping provided for safe worldwide transit. All payment forms accepted including credit card, PayPal, Bank Wire, Personal Check and Certified Bank Check. Please call 219.933.8115 or email info@artisanfidelity.com with questions. Serious inquires only please. No Trades.
Package includes the following:
Basis 2800 Signature Turntable with Vacuum platter and Fluid Damped Suspension
Basis Signature Record clamp
Basis Sychro Wave Power Supply
Basis Vacuum Pump and Hose
Basis Vector 4 tonearm w/VTA micro meter
Basis Calibrator Base
Basis Revolution Belt
Basis Cable Isolator
Any questions, please contact us directly.
Sincerely,
Christopher Thornton
Artisan Fidelity
info@artisanfidelity.com
www.artisanfidelity.com
219.933.8115
Description
2500 AND 2800 SIGNATURE
Note: All technical details, with the exception of the Vacuum notes, are identical on both 2500 and 2800 turntables.
THE 2500/2800 PEDIGREE
Before
considering any details of the 2500 the prospective purchaser should
realize the benefit he will receive from the fact that his 2500 was
designed and manufactured by the same company that has designed and
produced the incredible Basis Work of Art turntable and the legendary
Debut series, which has been in
production for 20 years. The 2500
platters and bearings are identical to the Debut items. The 2500 uses
the same motor as the Debut. The 2500 suspension is an adaptation of
the Debut suspension. It would be impossible for the 2500 to be
produced at its price without the simultaneous production of Debut
parts. As for
the design pedigree, it is undeniable: the same designer of the Work of Art and Debut designed the 2500.
The 2800 is identical to the 2500 while adding the Basis Vacuum Record Hold-Down System.
2500/2800 OVERVIEW
The
2500 Signature represents the refinement of the original 2500, which
has been in production since 1987. The 2500 incorporates an innovative
adaptation of the Basis fluid damped suspension of the Debut model. By
incorporating the suspension under the turntable platform Basis has been
able to reduce the size of the
subchassis, gaining an advantageous
“thickness-to-length ratio” for improved resonant behavior. We have
named the suspension isolators “Resonance Annihilators” as they indeed
perform the function of converting vibrational energy, on each side of
the Annihilator, into heat energy. The close proximity of the tonearm
to the adjacent isolator is a great advantage of the 2500 over any other
turntable design: tonearm energy, created as the stylus traces the
record groove, is effectively and immediately eliminated by this close
isolator. The result is an immediate and direct sound, the hallmark of
the suspended 2000 series turntables.
The 2500 turntable is
the result of the same “Basis Systems Approach” of product development
as other Basis products, where each individual subsystem contributing to
the performance of the product is identified. Specific goals for the
performance of each subsystem are developed based on the function of
that system. Each system is designed, based on fundamental principles
of physics, and then tested and optimized to perform its function to the
highest level. Only after each system has demonstrated superior
performance at its defined function is it approved for use in the final
product. The result is a totally engineered product. When looking at
other products it can be obvious that the designer has “fallen in love”
with a certain aspect of a product. This may be a novel shape, a
supposed isolator made of many layers of materials, or an unusual
material. Such shortsighted, incomplete designs are all too common in
the record player field and result in one-dimensional performance. With
the Basis Systems Approach the buyer is assured of a complete design, a
truly refined final product that will withstand the test of time by
performing at a state of the art level for decades.
THE 2500/2800 SUBCHASSIS
The
subchassis forms the base that holds all of the systems (drive,
suspension, bearing/platter, tonearm mount) together. Ideally the
subchassis should provide a rigid, non-resonant support for the
turntable system components. The massive, two-inch thick
stress-relieved acrylic 2500 subchassis indeed provides such an ideal
support. As stated above, the compact length and width of the 2500,
coupled with the high thickness of the acrylic, provide a high
“thickness-to-length ratio” for great resonant control and tightly
couple the suspension to the tonearm mount area for greater
vibration-quenching capabilities.
The acrylic material is
cast as a solid block and stress-relieved for stability. The material
itself exhibits superb low-resonance characteristics without the need
for problematic damping with elastomer materials. One needs only to cue
the stylus directly onto the subchassis on 2500, turn the volume up,
and tap the subchassis with
various light objects such as
toothpicks, small hex keys, small screwdrivers, and the like. You will
note that the sound from the speakers is different for each object and
“sounds” like the material of that object striking acrylic. Further,
the sound is immediate and short without echoes, “overhang”, or
ringing. Such a simple test, performed with other subchassis materials,
will show the benefits of solid, thick, cast acrylic as used for a
properly designed turntable subchassis. The 2500 subchassis provides
the inert structure that a true, neutral, state of the art record player
requires.
THE ISOLATION SYSTEM
Isolating the
turntable from the listening environment is crucial for you to really
hear the music on your record. Any less than total isolation reduces
your turntable to an expensive tone control, with the sound becoming
colored by feedback and by ineffective handling of energy fed into the
turntable by the tonearm.
The compact, self-contained
Resonance Annihilator assemblies of the 2500 house the ultimate
turntable suspension system. This system totally isolates the turntable
from vibration in the listening environment. It also damps the
subchassis by turning vibrational energy, which has been fed into the
subchassis by the tonearm, into heat energy. No other integral
turntable suspension in the world performs the first function as
effectively, and no other turntable suspension performs the second
function at all.
Additionally, the Basis system provides 48db
greater isolation between the motor and the record-stylus system. This
means that the 2500 delivers musical details with 48db greater freedom
from detail-masking motor noise than any non-suspended turntable system.
The beneficiary of this superior energy-conversion isolation
system is the listener. Musical details unfold with effortless
certainty, conveying the emotion of the music with profoundly convincing
realism, combining delicacy, immediacy, listenability, and explosive
dynamics.
See the technical paper on Basis isolation systems for further discussion of the Basis suspension.
THE MOTOR
The
2500 Signature utilizes the most speed-stable type of motor available,
the AC synchronous instrument motor. Basis modifies this motor with a
custom magnet assembly (see our Signature Series technical paper for
more details) to further smooth the power delivery and to assure a
totally balanced rotating system.
The custom motor is mounted
in its own housing, separated from the turntable by elastomer isolators,
which are themselves isolated from the critical tonearm/platter systems
by the 2500 fluid damped suspension system.
The result of
these extreme measures, along with the best drive belt in the business
(See our Superbelt technical paper for more information on belts) is a
totally speed stable, quiet, cog-free drive system. Musical notes are
unwaveringly solid, as expected; additionally, such exceptional levels
of speed stability lend levels of coherence to the music and the
recording soundfield that must be heard to be believed.
THE BEARING AND PLATTER SYSTEM
The
2500 features the Debut Signature Series platter and bearing. The
bearing is unique in the history of record players. It is an oil-well
design, the smoothest, quietest bearing type. A multi-component two
tiered structure results in the very desirable but seemingly impossible
reality of placing the center of gravity of the platter directly between
the top and bottom bushings of the bearing. Thus, the lowest possible
lateral forces are achieved. The result is lower friction and lower
noise, which yields the silent backgrounds, low grain, utterly
transparent, and effortless sound for which the 2500 is known.
A
high number of parts and numerous machining and matching operations are
required to achieve a bearing with the unique and outstanding
characteristics of the Debut bearing. Contrasted to the inexpensive
inverted bearings that most new turntable designs incorporate the
Debut/2500 bearing is a great example of the Basis
philosophy: quality is never compromised.
The
platter support surfaces of the bearing are machined after the bearing
has been otherwise finished. The platter is perfectly centered as a
result of this proprietary process, giving the 2500 a solid sense of
speed stability that must be heard. Matched thrust surfaces result in a
life, which, with twenty years experience, is
still unknown: no
Debut bearings have ever worn out! With current production surfaces
superior to those of the first Debuts in 1986 the new 2500 Signature
owner is guaranteed a minimum of 25 years before any wear surfaces
require attention.
The 2500 platter is lavished with the same
attention to detail as the bearing. At 20+ pounds it is not only inert
but is also absolutely round to a precision that is finer than one
quarter of the thickness of a sheet of paper! Along with the perfect
centering of the matched platter, the result is rotational accuracy of
five-ten thousandths of an inch. Even without a feeling for just how
impressive “.0005 inches accuracy” is, any listener will immediately
hear the riveting clarity and speed stability that results.
The
platter is a massive, two-inch thick design machined from
stress-relieved acrylic. 32 individual weights are bonded into the
platter to break up resonant modes and add to the rotational inertia. A
precision aluminum insert is integrally machined for perfect
platter/bearing matching with absolutely zero clearances. One look at
the bottom of the Debut/2500 platter with its 32 weights and perfectly
machined bearing interface and everyone agrees: this is a serious
platter for a serious, perfectionist turntable.
THE VACUUM SYSTEM
The
optional Basis Vacuum Record Hold-Down System applies a controlled
level of negative pressure to the underside of the record guaranteeing a
perfectly flat record that is so effectively coupled to the platter
that record resonance is totally eliminated. Each record becomes a
twenty-pound record! The true musical tonality and texture captured on
the record are revealed, without any added coloration of vinyl
resonance. No system, other than gluing the record to the platter, can
result in such perfect resonance control. Tests of record outer rings,
never considered at Basis due to resonance problems of their own as well
as the danger they present to the stylus, show only a twenty percent
coupling compared to the Basis Vacuum System.
The vacuum
system restores even the most warped record to exact flatness,
eliminating speaker damaging and power robbing “woofer pumping” due to
record warps. Dynamics, imaging, musicality, bass power, and tracking
ability are all brought to levels unreachable without the Basis Vacuum
system.
The Basis conceived HFLV (high flow, limited vacuum)
system combines rapid record pull-down with the gentlest possible
handling of records. The laboratory-grade vacuum regulator and the
precision vacuum gauge assure the user of consistent, gentle vacuum
application while allowing total adjustability and flexibility. The
remote pump allows flexibility in placement and assures silent operation
of the system.
SPECIFICATIONS
Overall dimensions: 16.7" wide x 15" deep (including motor) x 5.5" tall (424mm x 381mm x 140mm).
Overall
weight: 45 pounds (20.5 kilograms). Vacuum version: 65 pounds (29.5
kilograms).
Shipping weight: 52 pounds (23.6 kilograms). Vacuum version: 80 pounds (36 kilograms).
Color: Vacuum or non-vacuum version; Clear acrylic/silver trim (DIAMOND configuration), black acrylic/silver
trim, black acrylic/black trim.
Seller Information
chris74
chris74 Verified Dealer
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