Thinksound USP1 IEMsearch

Thinksound USP1 IEM

Thinksound USP1 IEM

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Hand-Poured Pewter, Expertly Engineered Sound

Thinksound’s highest-end IEM to date, the USP1 is voiced and assembled by acclaimed audio engineer Aaron Fournier and made here in the USA. It features a black aluminum baffle mated to a metal pewter housing, which is hand-poured locally in New Hampshire. The metal housing helps control resonance for a more precise sound reproduction, and inside, an 8-millimeter dynamic driver aims for accurate sound with minimal fatigue during long listening sessions. Passive noise isolation minimizes ambient sound, while the sweat-resistant design makes this IEM ideal for trips to the gym. Complete with a tangle-resistant cable and four sets of ear tips, the USP1 undergoes final assembly, packing, and inspection right in the Thinksound office.

Note: This drop is limited to 100 units.

Thinksound USP1 IEM
Thinksound USP1 IEM
Thinksound USP1 IEM
Thinksound USP1 IEM

See It Being Made


  • Thinksound
  • Voiced and assembled by Aaron Fournier
  • High-definition, precision-tuned 8mm driver
  • Hand-poured metal pewter housing
  • Passive noise isolation
  • Sweat-resistant design
  • Advanced studio acoustics and full-range sound
  • Compatible with iOS and Android devices
  • Frequency response: 10 Hz–20 kHz
  • Sensitivity: 97 dB +/- 3 dB (at 1 kHz 1 mW)
  • Impedance: 16 ohms
  • 4 ft (1.2 m) Kevlar-reinforced, tangle-resistant cable
  • 45º angled, gold-plated plug
  • Weight: 0.6 oz (18 g)
  • Made in the USA


  • 4 sets of silicone ear tips (S, M, L, XL)
  • Cord clip
  • Carrying pouch
  • Hard case
  • Thinksound’s 1-year limited warranty


All orders will be shipped by the vendor.

Estimated ship date is May 23, 2018 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.