Restoring a IMF Super Compact 2
Restoring a IMF Super Compact 2
The IMF Super Compact II is a renowned vintage 3-way bookshelf loudspeaker designed to deliver big transmission-line audio performance in a manageable enclosure. Featuring an 8-inch Bextrene bass unit with a low free-air resonance (~25 Hz), a 4-inch isolated cone midrange, and a smooth dome tweeter, it produces clean, extended low frequencies without acoustic distortion. Its engineered crossover network guarantees precise phase response and seamless driver integration. Celebrated for high transparency, wide dispersion, and incredible low-end response, it remains a timeless audiophile classic.
| Specification | Details |
|---|---|
| System Type | 3-Way Bookshelf Loudspeaker |
| Enclosure Loading | Transmission Line / Resistive Line Porting |
| Drive Units | • Bass: 8" (20.5 cm) Bextrene cone • Midrange: 4" (10 cm) isolated cone • Tweeter: 1" (2.5 cm) dome tweeter |
| Frequency Range | 30 Hz – 20,000 Hz |
| Crossover Frequencies | 375 Hz and 3,000 Hz |
| Nominal Impedance | 4 – 8 Ohms |
| Recommended Power | 20 – 50 Watts RMS |
| Dimensions (H × W × D) | 460 × 280 × 300 mm (18.1" × 11" × 11.8") |
| Weight | 9 kg (19.8 lbs) each |
