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About the Cosecant USB silver
The Wavelength Audio Cosecant USB DAC is a vacuum tube DAC designed for USB input from computers, featuring a multi-bit DAC IC and a single resistor passive I/V conversion for linearity across the audio band. It uses a 6GM8/ECC86 vacuum tube output stage with custom-wound transformers, providing a relaxed, non-fatiguing sound with excellent tonal purity and balance. The DAC supports USB Audio 1.1 and 2.0 at 32kHz, 44.1kHz, and 48kHz at 16 bits, with a frequency response of 5Hz to 20kHz. It has an output voltage of 2.5 to 2.75Vac depending on the tube used, and an output impedance of 500 ohms. The unit measures 6.5 x 6.5 x 5 inches and comes with a one-year parts and labor warranty. It is The DAC is noted for its asynchronous USB mode, proprietary USB controller software, and superb build quality with a burled wood faceplate and brushed aluminum top plate. It is designed and built in the USA by Gordon Rankin, who developed the asynchronous USB technology used in this DAC.
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