audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

(Linsoul) Early bird reservations for QKZ x HBB Khan are now open

QKZ x HBB Khan

QKZ x HBB Khan


Pre-orders for the QKZ x HBB Khan are now available at Linsoul.


10mm Bass Dynamic Driver + 7.8mm Mid&High Dynamic Driver IEMs

  • New Collaboration of HBB&QKZ Audio
  • Great with Mobile, Superb with Amplifier
  • 4th Gen DLP-3D Exquisite Production
  • Ergonomic Design in Glorious Shell
  • Affordable Quality Built Headphone


Be one of the first to get the QKZ x HBB Khan at a discount with the Reservation Card!

Purchase a $1 Reservation Card (RC) before the launch of the upcoming QKZ x HBB Khan, and get an Early Bird Promotion of $5 OFF!

How does the whole process go?

  1. Reserve one QKZ x HBB Khan by purchasing one $1 Reservation Card before its launch, which is likely on January 1st, 2023 (GMT+8). The $5 Early Bird discount code will be sent to you immediately but it can only be used on the launch date. 
  2. On the launch date, those who had purchased the $1 RC will receive an email notification via with the link to purchase the Khan earphones.
  3. Customers must log into their designated email address and apply the $5 discount code to order their Khan earphones. The IEMs would cost $34.99USD only after applying the $5 discount code.


No cancellation, refund or resale of the Reservation Cards will be provided.




  1. Each customer is entitled to purchase only one Reservation Card for the QKZ x HBB Khan. The $5 discount code received can only be used for one Khan order.
    E.g. If you had purchased ten $1 RCs, only one $5 discount code will be sent to you. No refunds will be made for any of the RCs paid.
  2. After purchasing the RC, the Early Bird discount code will be sent to you via email immediately but it can only be used during the launch date. Please check your inbox/spam/junk mailbox before contacting us.
  3. The email address used for reserving the QKZ x HBB Khan purchase has to match your email address account on Linsoul.
  4. Linsoul retains every right to cancel orders that try to abuse the system. The $1 paid for the Reservation Card will not be refunded.
  5. Should you have other discount codes e.g. codes redeemed using your Reward Points, they are NOT stackable with the Khan Early Bird discount code.
  6. Shipping fee is calculated based on your order after using the Khan Early Bird discount code. NO cancellation of the $1 RC is allowed due to regret buy



QKZ x HBB Khan

QKZ x HBB Khan

QKZ x HBB Khan