Burson Op Amps
Burson's Discrete and semi-discrete Op-amps
Eartech Music Boutique Universal
Universal in-ear monitors with poured acrylic shells and all the options of a custom.
BQEYZ BQ3 3BA+2DD Hybrid In Ear Earphones Earbud HIFI Bass DJ Monito Running Sport Earphone Earplug Headset Earbud With Mic
Eartech Music Premium Quint
5 BA per side custom in ear monitor with choices of shell and faceplate as well as engraving. Eartech also offers dual, triple, quad, and hex...
AKG n40 in ear Monitor
One step down from the k3003i flagship, the n40 is a dynamic driver / BA hybrid at the mid-point the AKG line .