Alpha Design Labs - ADL Stratos USB DAC with DSD and Phonostage

Alpha Design Labs



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D/A Converter or Processor

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Alpha Design Labs (ADL) has just introduced an all-new product – the STRATOS.  Building on the features of the GT-40 the ADL STRATOS brings something new to the table – DSD capability, a first for ADL.  The STRATOS is truly a jack of all trades and quite possibly a master of many, having a built-in preamplifier, phono stage, headphone amplifier, DAC  & ADC (24-bit/192-kHz), as well as DSD functionality (both 2.8M and 5.6M) via USB connection.  S/PDIF optical input and output are also provided.

The STRATOS can thus serve as the hub of a music system and/or a work-horse of a desktop system.  With it you can create pristine digital versions of your LP vinyl albums or get the most out of your headphones with robust amplification and the audiophile quality DAC.

Additional features include L/R analog inputs, switchable line or phono inputs and a controller that supports both ASIO and Asynchronous modes. The STRATOS also uses the finest Furutech RCA sockets to deliver high-quality sonic results.  A clear step-up from the GT40 in performance, the STRATOS, has been reconsidered and rethought using the latest technology and the latest designs.

"So, what do I think about the STRATOS? I'm enamored of it. It may be the single greatest piece of equipment that has graced my house." Read the full review from Positive Feedback, here.

"So then -- is the ADL Stratos the one “preamplifier” to rule them all? For a good many music lovers out there, and with the types of systems it’s likely to be used in, the answer will be an enthusiastic yes." Read the full review from Soundstage Acess, here.

Product Specifications
• 24-bits/192kHz CS4392 High Performance Stereo DSD DAC (2.8M/5.6M)
• VT1736 USB 2.0 High Speed 480Mbps 32-bits/192kHz USB DAC , 44.1/48/88.2/96/176.4/192 KHz
sampling rates supported
• ASIO driver (Windows); Plug’n Play (MAC)
• Powerful Headphone Amplifier MAX9722A (16~600 ohm)
• Line , ADC and DAC OPA : NJM5532 OP Amp
• Analog-to-Digital Converter: The STRATOS sports a high-performance ADC IC (CS5340) chip for high resolution recordings via analog inputs including phono, AM/FM radio, or other analog signals.
• Phono Preamplifier: The STATOS features a phono equalizer for recording your precious LPs. Switch between Moving Magnet (MM) and Moving Coil (MC) or Line input
USB Playback Resolution: 24bit/192KHz (Max)
USB Recording Resolution: 24bit/192KHz (Max)
• Highest Quality Parts: The STRATOS features a high quality amplifier and condenser supporting its high performance analog circuit
• High End Audio Grade Connections: The STRATOS is equipped with gold-plated Furutech RCA jacks with an extremely high quality aluminum chassis and machined volume knob
• Power Supply AC Adaptor Rating: Erp step2 compliant, 2Wire AC Input Type, Class II, AC/DC Switching Adaptor output DC 15V / 0.8A / 12W
• Dimensions: 150 (W) x 141 (D) x 57 (H) mm
• Weight (approximate): 900 grams

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