Help: Looking for some beta testers
Aug 5, 2016 at 2:23 AM Thread Starter Post #1 of 11


New Head-Fier
Aug 4, 2016
Hi everyone,

I am looking for some beta testers for one headphone and two earbuds.
All three are from startup companies, which are eager to get feedback to improve their products. The testing is free of charge, and you can also keep the sample if you want.
Is here the right place to post? And any recommendations or who should I ask for help? Anyone interested in participating? :D
Thanks in advance!

Thank you all so much for your replies!! As promised I'll add more details.

#1 A Noise-Cancelling earbuds
Keyword: "Noise-Cancelling", "ANC"
  • System: Dynamic
  • Design: In-Ear
  • Frequency range: 12Hz-22kHz
  • Sensitivity: 101 dB SPL/V (Passive), 102.5 dB SPL/V (ANC Active)
  • ANC performance: Excellent 27dB, Typical 23dB
  • Dynamic Driver: 13mm, 32ohms
  • Maximum input power: 10 mw
  • Microphone: Talking microphone: ECM, ANC/Morning microphone: MEMS
  • Net weight (with cable): 19.6 g
  • Cable: 99.99% oxygen-free cable, 1m to NC module, 0.5 mm from control box to plug (TBD)
  • Mail connection: 3.5mm stereo mini-jack plug
  • Battery life: 4h

#2 A High-Sensitive Hi-Fi headphone
Keyword: "Planar Diaphragm"

  • Rated Impedance: 50ohms
  • DC Resistance: 49±5%
  • RMS Power: 5W
  • Maximal Power: 10W
  • Sensitivity: 93dB/1mW
  • Frequency Response: 8-50kHz
  • Diaphragm Area: 39.8cm2
  • Conductive line material: Aluminum foil
  • Magnet Material: NdFeB
  • Net weight: 135.3g/pc

#3 Also a Noise-Cancelling Earphone, ANC

  • Earphone driver size: ∅ 10mm
  • Driver impedance: 30 ohms
  • SPL @1kHz: 108 dB
  • Max Power Output: 80mw
  • HiFi CODEC: Cirrus Logic
  • Signal to Noise Ratio: 115 dB
  • Total Harmonic Distortion +Noise: -90 dB
  • Dynamic Range: 114 dB
  • Battery Consumption: 0.7% per Hour (With ANC off) / 0.9% per Hour (With ANC on)

That's it. :D
Tell me what you think!! Could you please send me a message of your email address if anyone is interested? And I will send you more details on how to test them via email.

Users who are viewing this thread