Rola Cone Re-Creator Cone
Rola Company, The; Oakland, CA
- Pays
- Etats-Unis
- Fabricant / Marque
- Rola Company, The; Oakland, CA
- Année
- 1926
- Catégorie
- Haut-parleur, casque ou écouteur
- Radiomuseum.org ID
- 104455
- Gammes d'ondes
- - sans
- Tension / type courant
- Pas d'alimentation nécessaire
- Haut-parleur
- HP magnétique (sans details) / Ø 9 inch = 22.9 cm
- Matière
- Matériaux divers
- De Radiomuseum.org
- Modèle: Rola Cone Re-Creator [Cone] - Rola Company, The; Oakland, CA
- Forme
- Formes diverses décrites en notes
- Dimensions (LHP)
- 15.5 x 17 x 6.25 inch / 394 x 432 x 159 mm
- Remarques
-
The Rola Cone Re-Creator loudspeaker (1926) addressed critical challenges in early audio engineering through innovative design.
Core Design Innovations
- Piston-Like Operation: Unlike earlier cone designs, it mimicked a piston by pushing air columns rather than relying solely on vibrations, enhancing acoustic efficiency.
- Leather Suspension: Replaced rubber with thin leather for cone-edge attachment, improving durability across climates while maintaining flexibility for unrestricted motion (up to ¼ inch travel).
- Integrated Baffle System: Featured a large wooden ring to prevent rear soundwave interference, acting as both a sounding board and a baffle to minimize acoustic distortion.
Developed during the transition from horn to cone speakers, the Re-Creator exemplified Rola’s focus on refining electromagnetic designs. Its detachable cone-and-unit assembly allowed integration into custom cabinets, reflecting evolving consumer audio preferences. The 1926 model also predated field-coil advancements (introduced ~1928), marking it as a transitional product in loudspeaker evolution.
The Rola Cone Re-Creator was popular in the United States and exported worldwide, including to Australia. Rola's global reach was facilitated by its expansion into international markets.
- Littérature
- Radio! Radio! (fig.841)
- Schémathèque (1)
- Radio Horn Speaker Encyclopedia, by Floyd A.Paul
- Schémathèque (2)
- -- Original prospect or advert (Radio Doings (magazine) Feb 13, 1927 page 26)
- Schémathèque (3)
- Radio News (August 1926 page 134)
- D'autres Modèles
-
Vous pourrez trouver sous ce lien 12 modèles d'appareils, 11 avec des images et 1 avec des schémas.
Tous les appareils de Rola Company, The; Oakland, CA
Collections
Le modèle Rola Cone Re-Creator fait partie des collections des membres suivants.