AP170M0
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High performance 173mm / 6½ inch bass midrange drive unit featuring a paper cone (made from virgin pulp), a resonance free polymer chassis and a fully shielded magnet system. This drive unit has that lovely smooth pulp cone sound that eludes so many plastic coned drivers. Downloadable datasheet at bottom of this page.
New old stock in original factory boxes - supply is very limited.
| Resonant frequency (fs) | 59.7 Hz | Nominal impedance (Zn) | 8 Ω |
| Mechanical Q factor (Qms) | 3.30 | DC resistance (Re) | 6.2 Ω |
| Electrical Q factor (Qes) | 1.06 | RMS power handling | 45 W |
| Total Q factor (Qts) | 0.80 | Sensitivity (2.83V/1m) | 87.3 dB |
| Equivalent volume (Vas) | 17.62L | Chassis (squared section) | 173 mm |
