Monacor MSH-115HQ High Quality Midrange Unit: IN UK STOCK NOW The Monacor MSH-115HQ is a development of the popular MSH-115. It features a rigid diecast chassis with sub spider ventilation, a critically damped pulp cone and gold plated terminals. This drive unit is a real giant killer with a wide usable bandwidth and a text book response between 200-5000 Hz; the linearity is excellent with no significant peaks in the response. A full datasheet can be downloaded from this page. Key Features: Rigid diecast chassis Fully ventilated design Critically damped pulp cone Butyl rubber surround Wide usable bandwidth Very smooth response Excellent build quality Basic parameters: Resonant frequency (fs) 89 Hz Nominal impedance (Zn) 8 Ω Mechanical Q factor (Qms) 3.26 DC resistance (Re) 6.3 Ω Electrical Q factor (Qes) 0.66 Max power handling 100W Total Q factor (Qts) 0.55 Sensitivity (2.83V/1m) 89 dB Equivalent volume (Vas) 2.2 L Chassis (across flats) 116 mm Here's the full datasheet: