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Turntable »Oasis«  

The most prominent feature of the »Oasis« turntable is most probably its direct drive mechanism.
In our never-ending search to improve sound quality, we did not stop short of evaluating different
drive mechanisms or other alternatives such as belts of various consistencies. We quickly discovered,
however, that belts, for example, impart a fundamental sonic characteristic on the sound.
We therefore decided to forgo them altogether for this new model. As it turns out,
the platter of the »Oasis« is driven directly instead of with a belt.  

The drive mechanism consists of a ring shaped permanent magnet contained in the platter's bearing and four air-cored inductors on the »Oasis's« chassis plate. These inductors are adjusted and driven with utmost precision to different phase angles. Thus, the ensuing magnetic field rotates the platter. Well aware of the reason for the bad reputation
and uneasy sound of the direct drive turntables of the 1970s and 1980s, we resisted tight regulation of the direct drive mechanism. Instead, we take advantage of the many years of experience and insight we gained from
manufacturing our own “big” turntables. We use a precision bearing that is capable of smoothing out
the drive's miniscule speed variations. This results in a rotational smoothness hitherto unimaginable
with “classic” direct drive mechanisms.  

Our clamping mechanism allows for quick and precise adjustments, without any play,
of the aluminum arm base for 9 to 10.5-inch length tonearms. The platter is made of a special resonance-inhibiting
alloy of aluminum, copper, magnesium and other materials. A crystal glass platter top layer and a screw-down
record clamp allowany vibrations to be quickly absorbed by the platter. Finally, three height adjustable spikes
allow for a precise leveling and optimal contact of the turntable to your choice of platforms
(although we recommend HRS' M3 Isolation Base).  

 

Asynchronous USB DACS
All of the products here at Wavelength use our Streamlength Asynchronous USB
code that I developed.
These are all USB DACS they do NOT have antiquated SPDIF inputs like other dacs.
These are optimized and superior to the older SPDIF technology.

DAC Technology

Before we get to the products it is probably a good idea to address the differing technology associated with the DAC's in these products. In the Crimson and the Cosecant there are DAC modules. These circuit boards have DIN connectors for which they can be plugged into the mother board of the product and take on a different personality. The Firmware that runs the USB controller (TAS1020B) of the product is located on the DAC module and therefore changes the way the DAC and the computer talk to each other. Settings like bit size (i.e. 16 or 24 bits) and sample rate (i.e. 44.1K, 48K, 88.2K and 96K) will be communicated to the computer. All the DAC's on this page use Asynchronous USB mode . Each DAC module has the required low jitter master clock(s) that all the signals will be based on, with matching discrete low noise regulation for the best results. None of these DACs use any type of operational amplifiers (opamps) in their design. The DAC module is the only Solid State portion of the overall DAC. The output stage of all but the Proton are tube based and the key design element which is responsible for their overall sound. In the Proton, close respect in regard to component usage and filter settings makes this dac approach their tube siblings.
GORDON RANKIN

News, reviews, links and information.

Computer Audiophile took a spin on the Proton and really liked what they heard 6/22/09.

June 2009 Stereophile Magazine Wavelength's Cosecant The Best USB DAC Yet!
I want to thanks Art Dudley and John Atkinson for their hard work, page 77.
Stereophile Class A Rated Product

Music Served: Extracting Music from your PC , by John Atkinson

High Fidelity and 6Moons geared up together for a review of the Brick v2.

CC

 

 



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1110 rue de Bleury • Montréal, QC • Canada • H2Z1N4 • T.514.788.5066