AR Resonance Alex Sipiagin testing Feroce and Estrema Trumpets 

AR Resonance - Buffalo, Brass, Phospor Bronze and Stainless Steel Trombone mouthpieces test

AR Resonance Artist Luca Begonia tests his new Phosphor Bronze Mouthpiece

Junichi Kawasaki with AR RESONANCE

Hiroaki Hasegawa with AR RESONANCE

AR Resonance - Steel, Gold Plated, Buffalo and Phospor Bronze Trombone mouthpieces test