u/Emotional_Gold_5733

EDITED : I've done some researches and removed the ST2U from my lists. Now it's about GA2 vs Ultrasonic 😅 Any recommendations?

I've had GA1 for a while, absolutely loved it. but I already gave it away for my sister. Now I'm considering about buying a new one. I've tried the GA2 once. For me it's just GA1 with a higher gain. But haven't tried the ST2U yet. I've read some articles saying that all 3 of them uses the same driver so I considered buying the ST2U since it's half price of the GA2. Got any recommendations?