Out now! A refined control, higher gain and power SA-31se promo in for ordering.
Great or not for HE-6, we shall see..
What's new on the SA-31SE:
1, Boost the gain from 10DB (SA-31) to 20DB (High gain model on SA-31SE), even with low output level sources ( like 1.5VRMS), still have enough gain and power for drive the HE6 and low sensitivity headphones.
2, For the high sensitivity headphone and preamp output model , we have redesign the new exponential volume control board built in 14 pcs relays (SA-31 only had 8 pcs), it have 100 steps and 100DB level control range, allow users very fine to adjust the volume.
The below picture show the volume characteristic , green is with the SA-31, red is with the SA-31SE .
3, Redesign the control software, users can quite quickly continuous adjust the volume on front panel, from volume 0 to volume 50, only need around 5 seconds.
4, Built in OCC wires .