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ADL Stratos USB DAC with Phono Stage

Rating:
100%
$1,399.00
Out of stock

Sold Out & Discontinued.

The ADL Stratos is a DAC, preamplifier, phono stage and headphone amplifier all in one small, portable box.

With the Stratos you get DSD (both 2.8M and 5.6M), USB (24bit/192 kHz) and ADC, so you’ll be able manage the largest music collections with outstanding sound quality on your hard drive with ease and flexibility.

Main Features:

  • High-performance MM/MC Phono stage
  • DAC and ADC Digital Preamplifier (with Remote Control)
  • ESS ES9018K2M SABRE32 Reference Stereo DAC
  • XMOS U8 (supports PCM 24bit~32bit/384kHz Max.) High Speed 480Mbps USB Chip
  • Three Powerful Headphone Amplifiers TPA6120A2 (12~600 ohm)
  • CS5340 High-performance ADC Chip
  • S/PDIF Input and Output (24bit 192kHz Max.)
  • Controller supports ASIO and Asynchronous mode

The legendary and groundbreaking ADL GT40, known throughout the world as “the Swiss Army knife of audio components” when it was introduced, revolutionized the home entertainment industry when it came to managing computer-based music systems. The new and innovative ADL Stratos, however, is set to raise the bar even higher with more features and even better performance.

Dac, Preamp & Phono Stage

The ADL Stratos is more than just a DAC, a preamplifier, a phono stage and a headphone amplifier in one small, portable box. With the Stratos you get DSD (2.8M, 5.6M and 11.2M), USB (supports PCM 24~32bit/384kHz Max.) and ADC (24bit/192 kHz Max.), so you’ll be able manage the largest music collections on your hard drive with ease and flexibility—and outstanding sound quality.

If you need to convert your LPs or other analog sources to digital or record internet streamed audio, the Stratos offers a wide variety of options to help you obtain the best sonic results.

The Stratos has a low-latency USB 2.0 audio driver that plays at 384 kHz and records at 192 kHz and its built-in high-performance MM/MC phono stage, you can easily record your favorite albums to hard disk via USB. You’ll also enjoy Furutech’s detailed & clear yet smooth signature sound when you use the ADL Stratos as the heart and soul of nearly any desktop system.

Powerful for Hard to Drive Headphones

The Stratos is a powerful headphone amplifier that can drive any pair of headphones on the market.

Whether you use the latest generation of ear phones or the most revealing electrostatic ear speakers available, the ADL Stratos will allow you to venture and explore deeper into the recording than ever before.

Every ADL product is built with only the finest materials, as well as the most innovative Japanese design principles. The Stratos may be small, but it contains an amazing amount of technology.

Additional Features

  • L/R analog inputs
  • Line or phono (switchable MM/MC) inputs
  • S/PDIF Coaxial and Optical inputs
  • S/PDIF Optical output (for USB, Optical, Coaxial) and a controller that supports both ASIO and Asynchronous modes
  • The finest Furutech connectors to deliver high-quality sonic results

XMOS Integrated High Speed USB 2.0 PHY giving 480Mbps data-rates and USB Audio Class 2. 

  • PCM 24~32bit/384kHz (Max.) sampling rates supported. (* Note-32bit will not be shown on computer)
  • USB 2.0 high-speed compliance with DSD (2.8M,5.6M and 11.2M data supported), with the ability to sample 44.1, 48, 88.2, 96, 176.4, 192, 352.8 and 384 kHz sampling rates, indicated by LEDs on the front panel

ESS ES9018K2M SABRE32 Reference Stereo DAC : Audiophile-grade (DSD /2.8M, 5.6M, 11.2M supports).

  • 32bit 384kHz DAC Chip 

Analog-to-Digital Converter: The STRATOS sports a high-performance CS5340 ADC chip for high resolution recordings via analog inputs including phono, AM/FM radio, or other analog signals to PC or MAC hard drive. 

  • (24bit/192kHz Max.) 

Ultimate high-end grade linear volume control: 2-channel electronic volume allowing the volume to be preset for each input (Phono, Line, USB).

Three Powerful Headphone Amplifiers: STRATOS has three powerful TI TPA6120A2 headphone amplifiers: a pair handle the left and right channels of the XLR (4-pin) balanced output (non-switched), and the third powers the 6.3mm Stereo phone jack output (switched). (TI TPA6120A2 driving from 12 to 600 ohms at >120dB dynamic range).

ASIO (Windows); Plug’n Play (MAC).

Line , ADC and DAC OPA : TI NE 5532 OP Amp, PHONO OPA : JRC NJM2068DD OP Amp.

S/PDIF Coaxial and Optical input: If the playback sample rate cannot be set at source, the Coaxial and Optical LED will indicate (Max. 24bit/192kHz sampling rates supported).

Optical S/PDIF output (for USB, Optical and Coaxial) 24bit/192kHz Max.

Convenient Clip signal Toggle switch for Recording Attenuation: Adjust the recording attenuation to avoid any distortion during recording: -6dB, 0dB or +6dB (Rec/dB signal light comes on when input level exceeds circuit Gain). 

Phono Preamplifier: The STRATOS features a phono equalizer for recording your precious LPs. Switch between Moving Magnet (MM) and Moving Coil (MC) or Line input.

Dual External power supply : 

  • Power supply-1: 5V DC from USB bus powered USB chip only. 
  • Power supply-2: External AC/DC Switching Adaptor output DC 15V / 800mA / 12W

USB Playback Resolution:

supports DSD (both 2.8M, 5.6M and 11.2M ), USB (32bit/384 kHz) 

USB Recording Resolution:

24bit/192kHz (Max.)

Frequency response:

20Hz ~20KHz (+/-0.5dB)

SN ratio (A-WTD):

>96dB / Line Output, >60dB/ MC Output, >70dB/ MM Output

Analog Output Level: 

5.0 Vrms 

Line Input Level:

2 Vrms S/PDIF Input: 24bit/192KHz (Max.) 

MC/MM Input Level:

MC: 0.4mV / MM : 4.0mV 

MC Input Capacitance:

1000 PF - MM Input Capacitance: 100 PF

Line Input Impedance:

MC :100 ohm / MM :47K ohm / Line : 47K ohm

Headphone Balanced output Level (XLR 4-pin):

1% THD 1kHz (Max.)

400mW(12 ohm), 800mW(16 ohm), 1200mW(32 ohm), 2200mW (56 ohm), 700mW (300 ohm), 350mW (600 ohm) 

Headphone Unbalanced output Level (6.3mm Stereo phone jack):

1% THD 1kHz (Max.) 

1100mW(12 ohm), 1400mW(16 ohm), 1000mW(32 ohm), 820mW (56 ohm), 190mW (300 ohm), 
100mW (600 ohm) 

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:

215 (W) x 180 (D) x 64 (H) mm

Weight: 

1330g (3lbs) Approx.

STRATOS has no setting for gain to match different impedance headphones. 
We recommend using 12 ohm to 600 ohm impedance headphones.

5.0 / 5.0
1 Review
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A well respected Hi-End audiophile Swiss army knife!
I am using it as a headphone amp with the Sennheiser HD 600.

The result is amazing.

The sound is warm,spacious,and the dynamics are amazing. ( Senn's are quite hard to drive at 300 ohm ) This thing dances these headphones

What struck me is the amount of detail that this thing can produce while being gentle and not artificial. I can also make sibilant cans ( like some Beyers) sound more polite.

RESPECT
January 13, 2016
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