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Phatlab Audio Sassy II Amplifier

Phatlab Audio Sassy II Amplifier

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Portable Hybrid Headphone Amp

A favorite at this year’s CanJam expo, the Phatlab Sassy is a portable headphone amplifier with a unique single-ended triode and solid-state hybrid design. At its core are a pair of JAN6418 tubes, one responsible for amplifying the left channel and the other responsible for the right. These, coupled with the newly developed, full-discrete solid-state output stage, make for a warm, smooth sound signature when used with low- and high-impedance headphones alike. For go-anywhere convenience, the Sassy is a little bigger than your average wallet and weighs just 9.5 ounces.

Note: This drop is for the Phatlab Sassy II, which adds a low/high gain switch to the back of the unit. Quantities are limited to 4 units.

Phatlab Audio Sassy II Amplifier

Minimalist Design, Major Battery Life

The Sassy’s two-tone aluminum chassis features a large, smooth-moving knob and roll cage-style side panels designed to prevent accidental volume changes when you’re toting it around in your pocket. On the front panel, you’ll find a gold-plated headphone jack, a line in, and two LED indicators that tell you when the device is on and when your battery is running low. And speaking of battery, the Sassy keeps you rocking and rolling for more than 10 hours between charges, which can be done via the USB port on the rear panel.

Phatlab Audio Sassy II Amplifier
Phatlab Audio Sassy II Amplifier

About Phatlab

The “Phat” in Phatlab is an acronym for the principles that drive the company’s tiny but growing product line: portability, headphone, class A, and tube. By considering audiophiles’ demands in the era of mobility and developing proprietary headphone amp technology, Phatlab aims to replicate the experience of high-end stereo performance in headphones and other devices.

To learn more about the Phatlab Sassy, check out this Headfonia review.

Phatlab Audio Sassy II Amplifier
Phatlab Audio Sassy II Amplifier


  • Phatlab
  • Chassis: Aluminum
  • Tubes: JAN6418 triode-connected filament-type pentode
  • Output stage: Full-discrete solid state
  • Frequency response: 10 Hz–100 kHz
  • Output power: 180 mW + 180 mW (300 ohm); 1000 mW + 1000 mW (30 ohm)
  • Headphone impedance: 30–600 ohm
  • Gain switch: High: 0dB / Low: -10dB
  • Power supply: 5V/1A via micro-USB port
  • Operation time (on battery): Approx. 10 hours (depends on headphone impedance)
  • Charging time (>1A supply): Approx. 3 hours
  • Dimensions: 4.7 x 3.7 x 0.9 in (119 mm x 93 mm x 23 mm)
  • Net weight: 9.7 oz (275 g)


Domestic orders will be shipped by the vendor and international orders will be shipped by Massdrop.

Estimated ship date is Jan 26, 2018 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.