State 2 Upgrade for W4S STP-SE PreAmp
 

Has anyone heard the State 2 upgrades for the W4S STP-SE PreAmp?

If so, what are your impressions?

TIA

https://wyred4sound.com/products/pre-amps/stp-se

The Stage 1 STP-SE upgrade features our discrete proprietary regulators along with 24 Vishay Z-Foil resistors, four premium inductors, four Schottkey diodes and a Rhodium-plated Furtech fuse. These enhancements which focus on the power supply and input/output buffer circuits present greater fidelity and definition.

The Stage 2 STP-SE upgrade, includes all of the above plus a Furutech rhodium plated IEC inlet, 48 Vishay Z-Foil resistors located in the resistor ladder volume control, 16 upgraded high frequency filter capacitors and a green OLED display. Direct attention to the signal path throughout the volume control and filtering circuit yields major enhancements to an already exceptional product.

has anyone reviewed the stage 2 STP-SE upgraded preamp ,most of all reviews are
4 to 5 years old, I do have their SX1000 MONO"s amps and they sound great