What does the i stand for in the new SR225i from Grado? Improved, that's what! Features are the same as the SR125i, new driver, cable and housing designs, but this headphone has an increased rear air flow, utilizes Grado's larger ear cushion and has closer matched drivers.

• Vented diaphragm
• Non Resonant air chamber
• UHPLC copper voice coil wire
• Standard copper connecting cord

Tranducer Type
Dynamic

Operating Principle   
Open air

Frequency Response   
20-22

SPL 1mV   
98

Normal Impedance   
32ohms

Driver Matched db   
.05