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Schiit Audio Fulla 3 Desktop Headphone Amplifier & USB DAC

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Schiit Audio Fulla 3 Desktop Headphone Amplifier & USB DAC

  • Complete Amp/DAC solution in a tiny case

  • Uses the latest AKM AK4490 D/A converter found in DACs costing 10x this price

  • Up to 400mW into 16 ohms, a great match for almost any headphone or earphone

  • 3.5mm headphone jack convenient for use with full size headphones or earphones

  • 3.5mm microphone input conveniently located on the front

  • Comes with 3.5mm fixed line output & variable outputs at the back

  • Powered by microUSB port, comes with second microUSB power input for low powered devices or for use as just an amplifier



Fulla 3 is pretty much the answer to the question, “What’s the most affordable way I can get into great sound for gaming…and music, too?” Because it’s a great DAC/amp with top-shelf components—that also has a very nice microphone input, too. Fulla 3 is ready for your headphones, your headphone mic, your powered monitors, your analog sources, and more.

Total Flexibility for Gaming and Music

Fulla 3 is a complete DAC/Amp that also integrates a high-quality electret mic input. Plug Fulla 3 into virtually any USB port, connect your headphones and microphone, and you’re set for amazing gaming. But that’s only the start:

Use it as a great music DAC/amp. You don’t need to be a gamer to appreciate the quality of Fulla 3.

Use it as a DAC/preamp. Connect to powered monitors or speaker amps using the variable outputs on the back.

Use it as an amp. Connect your phone (or any other analog source) to the convenient front jack.

Use it with phones, tablets, or computers with low-powered USB ports. We’ve included a second USB port for power input. Plug in your phone charger (or any other 5V DC source with micro-USB output) and Fulla 3 tells your source it doesn’t need any power.

Top-Shelf Components

Like DACs costing many times its price, Fulla 3 uses the AKM AK4490 D/A converter. Coupled with an Alps RK09 potentiometer, high-quality filter and amp stages from Texas Instruments, as well as precision thin-film resistors and film capacitors, Fulla delivers performance far beyond its modest price.

Plenty of Headphone Power

Fulla 3 delivers a super punch, up to 400mW into 16 ohms, together with a vanishingly low noise floor and low output impedance. Or, in English, this means it’s a great match for virtually any headphone.

Amazing Mic Input

Your friends may think you’ve started your own podcast when they hear Fulla 3’s 24-bit microphone input with AKM analog-to-digital converter. And, automatic gain control makes the mic adjustment-free and super simple to use.

Designed and Built in California, 2-Year Warranty, Easy Returns

By “designed and built in California," this is what we mean: the vast majority of the total production cost of Fulla 3—chassis, boards, assembly, etc—goes to US companies manufacturing in the US. Our chassis are made minutes from our facility. Our PCBs are done just over the hill from us, or done in Nevada. Fulla 3 is also covered by a 2-year limited warranty that covers parts and labor. And if you don’t like your Fulla 3, you can send it back for a refund, minus 15% restocking fee, within 15 days of receiving it.

Technical Specifications

Additional Information

Package Contents

Schiit Audio Fulla 3, microUSB Cable

Colour Black
Warranty 2 years (local)
Product Weight (g) 255
Availability Preorder / Backorder (currently unavailable)
Product Type DAC (Digital-Analog Converter)
Style/Type Desktop
Features Line-in, Line-out, Microphone
DAC AKM AK4490 with TI OPA1662-based filter stage
Sampling / Bitrate 16/44.1 to 24/192 supported without drivers on Windows 10, Mac, Linux, Android (UAC 2 device)
Frequency Response (Hz) 20Hz-20Khz, +/-0.5db
Impedance (Ω) 0.5
Signal-to-Noise Ratio (SNR) >105db
Total Harmonic Distortion (THD) <0.002%
Input Connectivity micro-USB, Microphone in
Output Connectivity 3.5mm Stereo
Microphone In-Line Microphone
Additional Tech Specs

Maximum Power, 16 ohms: 400mW RMS

Maximum Power, 32 ohms: 250mW RMS

Maximum Power, 50 ohms: 200mW RMS

Maximum Power, 300 ohms: 40mW RMS

THD: 105db, A-weighted, referenced to 1V RMS

Crosstalk: >-80dB, 20Hz-20KHz

Output Impedance (headphones): 0.5 ohms

Output Impedance (line out): 75 ohms

Input Impedance (rear 1/8" jack): 10k ohms

Gain: 1.7 (4.6db)

USB Receiver: C-Media CM6631A

DAC: AKM AK4490 with TI OPA1662-based filter stage

Sample Rates and Bit Depths: 16/44.1 to 24/192 supported without drivers on Windows 10, Mac, Linux, Android (UAC 2 device)

Output Stage: TI LMH6643 x 2 (1 per channel)

Power Supply: Via USB, with +/- 5V rails via high-current dual-polarity switching regulator, with inductor filtering and local regulation

Power Consumption: 0.8W typical

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