Wavelength Audio, ltd. Cincinnati, Ohio United States
Wavelength Audio has been in business since 1981 delivering award winning vacuum tube designs. Wavelength Audio has produces many styles of semi custom single ended directly heated triode amplifiers and preamplifiers (WavelengthAudio.com). Wavelength Audio has primarily been in the news lately because of the Computer Audio USB DACS (USBDACS.com) and now netDACs with AudioVia. Wavelength also designs a complete line of custom tube guitar amplifiers (Guitar-Engines.com).