GK Product Guide: Model Families and Specifications
Use this catalog guide to distinguish models and their construction, not as a ranking based on tests.
Use this catalog guide to distinguish models and their construction, not as a ranking based on tests. X1, G1 Pro, G2, AK8, AK8 Pro, G3, G4, G5 and G6 have appeared in the GK catalog, but the older article assigned a uniform product ladder and sound improvements without evidence. Check each exact current SKU; in particular G3 must not be described as BA+DD when its manufacturer page says dynamic.
KUNTEN / KUNTEN PRO
KUNTEN uses a single dynamic design; the published 43Ω and 109dB/mW are comparison fields, not an acoustic score. KUNTEN PRO's official material describes the second-generation KUN 2 driver and dual-stage damping, but these are manufacturer statements, not independent results. Use the dedicated PRO specification page for its launch details instead of assuming a current purchase window.
Streak
The current catalog lists 32Ω impedance, 111dB sensitivity and a detachable 0.78mm two-pin cable. The sensitivity reference is not given, so it must not be silently treated as dB/mW or compared with KUNTEN's 109dB/mW. Confirm the exact connector and microphone cable at purchase. The earlier 14.2mm tweeter, 3kHz crossover and bundled USB-C adapter details are not established by the available Streak source.
Matching the source
Source matching requires impedance, sensitivity with its reference unit, available voltage and current, output impedance and noise. A phone's USB-C port does not establish its analog output quality: with a digital adapter the adapter contains the DAC and amplifier. Start at low volume and check the exact cable, microphone and device compatibility.
Compare the total purchase cost
Set a total budget for the earphones, any required adapter, shipping and replaceable tips. A historical dollar price is not a current quote: currency, region, microphone option and seller can change the total. Compare like-for-like bundles and keep the return deadline visible while assessing comfort. A dearer driver configuration is not automatically an upgrade.
Current product catalog · GK X1 · GK G2 · GK G3 · GK AK8 · GK AK8 Pro · GK KUNTEN · GK KUNTEN PRO Official Specs: KUN 2 Driver, Type-C and What We Know