Burson Op Amps
Burson's Discrete and semi-discrete Op-amps
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 .
Miniature in ear Bluetooth earphone
KZ ZS6 Custom-built Hybrid HiFi In-ear Earphones