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FiiO K17 R2R: R2R Done Right

  FiiO's K-series desktop stack has always had a very clear job: sit on your desk, look the part, and drive basically anything you throw at it. The K17 R2R is the newest member of that family, and it takes the existing K17 chassis and swaps out the AKM Delta-Sigma setup for FiiO's own 24+5-bit segmented R2R PRO resistor array. Priced at $989.99, it isn't cheap, but it is meant to be the "do everything" desktop centerpiece for people who want a streamer, a DAC, and a proper amp section in one box. I've had the K17 R2R on my desk for a good while now, alongside my existing K17 R2R that's already part of my regular rotation, so this review comes from genuinely extended use rather than a quick once-over. Packaging and Build The unit comes in a foam-padded box, well protected for transit. Inside you get an infrared remote control, a spare fuse, two USB-A to USB-C cables, a 6.35mm to 3.5mm adapter, and a dust cover for the front XLR port. FiiO doesn't bundle...

HiFiGo Back to School Sale Aug 17th - 26th Aug

HiFiGo's running their AliExpress sale from Aug 17th 00:00 to Aug 26th 23:59, and I went through the lineup to flag the ones actually worth your cart space.

🎯 The one I'd grab first: AFUL Performer 5+2 — $175.11

A 2DD + 4BA hybrid that delivers deep, textured bass, strong treble detail, and excellent instrument separation. Genuinely one of the most versatile-sounding sets in this sale.

💰 Best value pick: PULA ARC — $18.37

Yes, under $20. A 10mm PET dynamic driver with an N52 dual-magnet system, tuned clean and balanced. If you want a no-risk entry point, this is it.

🎧 Flagship-tier option: Dunu Davinci — $211.59

2DD + 4BA co-tuned with Gizaudio — rich tonality, impactful bass dynamics, and strong musicality throughout. For those who want to spend a bit more and feel it.

🔌 Something different: Musehifi M3 Ultra — $104.49

A pocket-sized tube DAC/AMP running dual JAN6418 tubes, pushing up to 480mW @ 32Ω. If your chain's missing some warmth, this fills that gap nicely.

Also worth a look:

  • Dunu Titan X ($30.99) — natural, balanced dual-magnet dynamic driver, a clean way into HiFi
  • AFUL Explorer ($88.05) — 1DD + 2BA hybrid with RLC crossover tech and long sessions comfort in mind
  • Binary EP321-MEMS ($245.32) — 2DD + 3BA + 1 Direct Drive MEMS for ultra-high frequencies and refined treble
  • Binary 1900 ($195.93) — dynamic driver + passive radiator hybrid, lively and impactful, great for pop/EDM
  • Juzear Fiesta ($91.89) — 1DD + 3BA tuned for bass lovers, deep and punchy without losing clarity

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