SPH-135/AD
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This 135mm / 5¼" unit is used in the Sterling Broadcast LS3/5a.
Featuring a mineral loaded (carbonised) polypropylene cone with a high internal damping factor, this unit offers a flat extended response with non of the large midrange peaks that plagued the majority of bextrene coned B110s.
A great replacement for a huge range speakers including various models from Mission, Castle, JPW, Rogers and others.
| Resonant frequency (fs) | 39 Hz | Nominal impedance (Zn) | 8 Ω |
| Mechanical Q factor (Qms) | 3.40 | DC resistance (Re) | 6 Ω |
| Electrical Q factor (Qes) | 0.42 | Max power handling | 60W |
| Total Q factor (Qts) | 0.37 | Sensitivity (2.83V/1m) | 89 dB |
| Equivalent volume (Vas) | 26L | Chassis diameter (pincushion profile) | 135 mm |
SPH135AD, SPH 135AD