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Oswalds Mill Audio Ironic speakers

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Product Description

The OMA Ironic speaker is an open baffle type, cast from a special kind of iron, with no enclosure. The hypo eutectic gray iron (high graphite content) used in this speaker is employed in high technology applications such as photolithography machines for silicon chip production, where resonance or vibration must be reduced to an absolute minimum. The complex form of the speaker derives from quadratic diffusers universally used in studio and broadcast applications.

The unique form of the Ironic is impossible to cast using traditional pattern making methods. The molds are 3D printed in sand, and every mold is consumed/destroyed in the casting process. Every single Ironic thus requires a new, 3D printed mold to be made.This is an extremely expensive process.

The special combination of transducers used in the Ironic - a 15" electrodynamic or field coil woofer used in Juke Boxes from the 1930's, of which we have 20 restored examples, and the bleeding edge custom ribbon tweeter, which is 110db at 10khz, 1m, combine to make an open baffle speaker of unprecedented efficiency, at least 104db across the majority of its passband.

The Ironic is presented as a limited edition of ten pairs only.

This is a speaker without precedent.

Industrial design by David D'Imperio

Dimensions:
Height 132cm
Width 89cm
Depth 31cm (max)

CRAFT

All OMA products are made within a very small area of Eastern Pennsylvania, the part of the United States which gave birth to the industrial revolution and which continues to excel in small manufacturing. Our horns are cast at a local foundry, our slate comes from the last quarry in Pennsylvania, our wood is from the surrounding forests. Many of our products are entirely hand made by skilled artisans, and yet we also use cutting edge technology like five axis water jet machining. 

OUR DESIGNERS

Our acoustical designer Bill Woods has been designing horn loudspeakers professionally for over 35 years. He is one of a handful of the world's top experts on horns. Once Bill has set the acoustical parameters for a proposed speaker, such as the size and flare of the horn or horns, enclosure volume and geometry, selection of drivers, etc, OMA's industrial designer David D'Imperio is tasked with creating a visually arresting design that maintains it's acoustic integrity. The history of loudspeaker design shows that aesthetic beauty and acoustic excellence have rarely occurred in the same package. D'Imperio creates an individual identity for each speaker design, following from its acoustic goals.


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