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Official product information provided by Fiio+
The following product descriptions, specifications and images are provided by the manufacturer.
FiiO QX11 — Portable USB DAC & Headphone Amplifier
The FiiO QX11 is a compact high-performance USB DAC and headphone amplifier that combines flagship-level dual DAC architecture with a powerful all-Texas-Instruments amplification stage. Designed for both high-fidelity music playback and competitive gaming, the QX11 delivers desktop-class audio performance in a pocket-sized form factor.
Dual Flagship ES9069Q DACs
Built around two ESS ES9069Q flagship dual-channel DAC chips, the QX11 supports true high-resolution audio processing with 32-bit/768kHz PCM and native DSD512 decoding. The dual-DAC configuration ensures exceptional channel separation, ultra-low distortion, and rich detail retrieval across the entire frequency spectrum.
Powerful All-TI Amplification
The analog stage features an end-to-end Texas Instruments architecture: 2× OPA1692 for pre-amplification and 4× OPA1622 in parallel for headphone driving. Delivers up to 800mW + 800mW balanced output in Desktop Mode, with enough power to drive demanding full-size headphones. The 4.4mm balanced and 3.5mm single-ended outputs cover all headphone types.
Dual Mode: HiFi & Gaming
Switch between dedicated HiFi Mode for pure, uncolored music playback and Gaming Mode with genre-specific sound profiles optimized for FPS, ACT, MOBA, and rhythm games. The gaming mode enhances spatial awareness, footsteps, and directional cues for competitive play.
Smart Features & Connectivity
- Dual USB-C Ports: One for audio input, one for 45W USB PD pass-through charging — use the DAC while charging your phone or laptop simultaneously
- Built-in Microphone: Integrated microphone with AI-based noise cancellation for clear voice chat and calls
- Auto EQ: Advanced automatic equalization supported by FiiO web and FiiO Control applications
- Desktop Mode: Higher output power for stationary use with full-size headphones
- Portable Mode: Optimized power efficiency for on-the-go use with IEMs and portable headphones
Specifications
| DAC Chips | Dual ESS ES9069Q |
| Pre-amplifier | 2× TI OPA1692 |
| Headphone Amp | 4× TI OPA1622 (parallel) |
| Max Sample Rate | PCM: 32-bit/768kHz | DSD: Native DSD512 |
| Output Power (Balanced) | Up to 800mW + 800mW (Desktop Mode) |
| Outputs | 3.5mm single-ended, 4.4mm balanced |
| Inputs | Dual USB-C (audio + 45W PD pass-through) |
| Modes | HiFi Mode, Gaming Mode (FPS/ACT/MOBA/Rhythm presets) |
| Microphone | Built-in with AI noise cancellation |
| EQ | Auto EQ (FiiO web / FiiO Control app) |
| Charging | 45W USB PD pass-through |
| Color | Green |
What's in the Box
- 1× FiiO QX11 Portable USB DAC & Headphone Amplifier
- 1× USB-C to USB-C Cable
- 1× USB-C to USB-A Adapter
- 1× Quick Start Guide
- 1× Warranty Card
Warranty & Support
Eligible returns may be requested within 30 days after receipt, with no restocking fee. See our Return Policy for eligibility, return shipping responsibilities, and exclusions. 1-year warranty. FiiO official after-sales support. Our team is available for technical assistance and setup guidance.
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Shipping, warranty and returns+
Shipping origin and charges
Orders ship from Suzhou, mainland China.
Shipping charges and any taxes collected at checkout are shown before payment. See our Shipping & Tax Policy for supported destinations, weight-based rates and import charges.
EMiUZEK commercial warranty
EMiUZEK provides a commercial warranty: DACs, amplifiers, IEMs and dongles: 1 year; cables and adapters: 3 months. This warranty is provided by Yangzhong Jindun Digital Technology Co., Ltd. Manufacturer warranties, where available, are separate and subject to the relevant brand's terms. This commercial warranty does not limit mandatory statutory rights or legal remedies.
Returns
Request an eligible return within 30 days of delivery. Eligible non-defective items may be unused or opened but in like-new condition. Contact us before sending a return. Conditions, exclusions and costs are set out in the Return Policy.