Schiit Audio Fulla USB Dongle DAC/Headphone Amplifier

Schiit Audio

“That tiny thing is a combined DAC and headphone amp? You’re Fulla Schiit!” you might be saying. And you know what, you’re right. That’s Fulla.

  • And it’s not only a combined DAC and headphone amp, it’s also the least expensive quality dongle-DAC/amp on the market, with a knob for volume control—connected to a real live analog volume pot, not a volume control chip.

  • Total Convenience

    Just plug Fulla into virtually any computer’s USB port and you’ll be enjoying great tunes instantly. No drivers, no fiddly software, no confusing volume buttons—on either Mac or PC. It also works (with some caveats) on Linux, iPhones, iPads, and Android devices. Plug it in, attach your headphones, and turn it up. Done!

    A Dang Good DAC

    Like Modi, Fulla uses a CM6631 USB 2.0 receiver and the AK4396 digital to analog converter—not antique 1.1 or an integrated DAC with headphone drivers built in. The AK4396 is one of the best-measuring, most capable digital to analog converters on the planet, used in systems that cost many times the Fulla’s price.

    Plenty of Power for Most Headphones

    After the DAC, a gain stage using precision thin-film resistors and film capacitors filters and boosts the output, up to 300mW into 32 ohms. This means plenty of power for most headphones, together with a vanishingly low noise floor and low output impedance that make Fulla great for IEM use.

    Made in USA. No, Really.

    By “made in USA,” we mean made in USA. The vast majority of the total production cost of Fulla—chassis, boards, assembly, etc—goes to US companies manufacturing in the US.

  • Frequency Response: 20Hz-20Khz, -0.1db, 2Hz-200KHz, -3dB

    Maximum Power:
    16 ohms: 400mW RMS per channel
    32 ohms: 300mW RMS per channel
    50 ohms: 220mW RMS per channel
    300 ohms: 40mW RMS per channel

    THD: <0.004%, 20Hz-20KHz, at 1V RMS

    IMD: <0.005%, CCIR

    SNR: >101db, A-weighted, referenced to 1V RMS

    Crosstalk: >-67dB, 20 Hz-20KHz

    Output Impedance: Less than 0.4 ohms

    Gain: 1.5 (3.5db)

    USB Receiver: C-Media CM6631A

    Bit Depth and Sample Rates Supported: 16/44.1 to 24/96, including 24/88.2

    DAC: AKM AK4396 with Analog Devices ADA4610-based filter stage

    Output stage: Analog Devices AD8397 high-current rail-to-rail amplifier

    Headphone Output Size: 1/8", unlike all of our other amps

    Power Supply: Via USB, with +/- 5V rails via high-current negative rail generator with inductor filtering and local regulation

    Power Consumption: 0.8W typical

    Size: 2.5 x 1.2 x 0.45”

    Weight: 3 oz