The Aune S17 Pro is a fully balanced Class A headphone amplifier built on a Twin JFET R2R design. It's amp-only, so pair it with a dedicated DAC: a natural upgrade for listeners who've outgrown a combo unit and want to drive demanding planars or high-impedance dynamics over a balanced cable.
Who the Aune S17 Pro is for
Combo-unit upgraders: If you've outgrown an all-in-one DAC/amp, this dedicated amplifier is the natural next step.
Planar and high-impedance owners: It's built for demanding planar and high-impedance dynamic headphones, ideally connected with a balanced cable.
Listeners with a settled lineup: This is the amp you buy once you know which headphones you're keeping and want to hear what they actually do.
Owners of a dedicated DAC: It slots in after your existing DAC as the amplification half of a two-box stack.
Skip it if: you want a single all-in-one box; the S17 Pro is an amplifier and needs a separate DAC.
Aune S17 Pro key specs
Amplifier type: Fully balanced, Class A
Circuit: Twin JFET R2R design
Function: Headphone amplifier only (pair with a separate DAC)
Heat: Runs warm (Class A); leave room around it on the shelf
Colors: Black, Silver
Genuine Aune stock with 45-day returns.
Aune S17 Pro vs similar options
vs SMSL VMV P2: Another fully balanced headphone amp, built on dual PU30212 modules with 133dB SNR and a hi-res preamp function; pick the S17 Pro if you want Twin JFET Class A amplification.
vs FiiO K17: An all-in-one with its own AK4191EQ + dual AK4499EX DAC stage and a balanced Class AB amp rated 4000mW + 4000mW; choose the S17 Pro if you already own a DAC and want Class A.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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