Seas Prestige ER18RNX (H1456) 7" Reed Paper Cone Woofer
Used in the highly regarded ZA-SR71 speaker kit!
H1456 x2 + H1189 MTM Passive Crossover Design
Developed for use as a long throw high fidelity woofer or woofer/midrange unit.
- Edge coated reed/paper pulp cone together with perfectly matched moving parts gives a smooth, extended frequency response.
- Bumped back plate in the magnet system, together with the very long and lightweight copper clad aluminium voice coil, allow extreme coil excursion with low distortion.
- Heavy copper ring below the T-shaped pole piece will reduce non linear and modulation distortion.
- Extremely stiff and stable injection moulded metal basket keeps the critical components in perfect alignment.
- Large windows in the basket both above and below the spider reduce sound reflection, air flow noise and cavity resonance to a minimum.
Madisound Suggested Alignments:
- Sealed box of 0.25 cubic feet for F3 of 97Hz.
- Vented box of 0.5 cubic feet with a 2" diameter vent by 6" long for F3 of 53Hz.