Refusal to take responsibility.
Hi, Just thought I would make a note here of your handling of my issues. I ordered a pair of HD6xx headphones and then earlier today recieved the package. I drive to go and get it, as I like in the UK I had to pay import tax and handling fees. These total £47.92. The breakdown being £35.92 in tax and £12 in fees. These taxes were calculated of the shipping label of the box, which marked the shipment as the 6xx headphones of $199 value. Before leaving the parcel depot, I open the box to find a $35 lord of the rings mousepad. So now the problem is not only do I not have the headphones, but you have marked the shipment wrong so I have paid £47.92 fees for the handling of the mousepad. Which would have acrued £0 of fees if marked correctly as it is under £135. I go back to the desk but as I have already paid the fees I am unable to reject the shipment, but as the box said 6xx, there was no way for me to know before opening it. I contact support and they offer me a replacement, which...
Jan 17, 2025
http://www.audio-gd.com/HE/HE-9/HE-9EN.htm
“Summarize Built in regenerative power supply Uses three R-core transformers (In total 260W ) and more than 100,000uf audio grade NOVER capacitors are used to ensure ample and smooth power delivery. Separate class A PSUs power supply for regenerative drivers ,Left and Right channel audio signal amps . Total applied 8 pcs exact matching 150W transistors ( In total 1200W ) as the output stages for implement large class A output power . Uses most Hi-end grade parts and exactly matched transistors, OCC wires. Four-channel 100 steps digitally controlled relay-based volume control avoids channel imbalance and improves sound quality . Supper Exponential Volume Characteristic, easy match the volume with very high headphone / speaker without change the gain mode. 20DB gain can drive the low sensitivity headphone very well.”
Many other lower cost amps will take you beyond your GSX1000, and I’m sure other HE4XX owners will chime in.
Edit; Your GSX1000 gamer has a low power processor in it, to be kind; not too impressive: