SP-90
The Monacor SP-90 is an 8 inch bass drive unit featuring a pulp cone, a rigid pressed steel chassis, soft foam suspension and a forward ventilated dust cap. A good budget choice for general replacement duties; can be mounted on the front or rear of the baffle.
Exact fit in the vintage Goodmans Quartet Q60.
| Resonant frequency (fs) | 45 Hz | Nominal impedance (Zn) | 8 Ω |
| Mechanical Q factor (Qms) | 3.36 |
DC resistance (Re) | 6.5 Ω |
| Electrical Q factor (Qes) | 0.68 | Max power handling | 70W |
| Total Q factor (Qts) | 0.57 | Sensitivity (2.83V/1m) | 92 dB |
| Equivalent volume (Vas) | 42L | Chassis diameter (pincushion style) |
205 mm |
SP-90
