Rola Cone Re-Creator Cone
Rola Company, The; Oakland, CA
- Land
- USA
- Hersteller / Marke
- Rola Company, The; Oakland, CA
- Jahr
- 1926
- Kategorie
- Lautsprecher, Kopfhörer oder Ohrhörer
- Radiomuseum.org ID
- 104455
- Wellenbereiche
- - ohne
- Betriebsart / Volt
- Keine Stromversorgung
- Lautsprecher
- Magnetischer Lautsprecher allgemein, System nicht definiert / Ø 9 inch = 22.9 cm
- Material
- Diverses Material
- von Radiomuseum.org
- Modell: Rola Cone Re-Creator [Cone] - Rola Company, The; Oakland, CA
- Form
- Diverse Formen, unter Bemerkung beschrieben.
- Abmessungen (BHT)
- 15.5 x 17 x 6.25 inch / 394 x 432 x 159 mm
- Bemerkung
-
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.
- Literaturnachweis
- Radio! Radio! (fig.841)
- Literatur/Schema (1)
- Radio Horn Speaker Encyclopedia, by Floyd A.Paul
- Literatur/Schema (2)
- -- Original prospect or advert (Radio Doings (magazine) Feb 13, 1927 page 26)
- Literatur/Schema (3)
- Radio News (August 1926 page 134)
- Weitere Modelle
-
Hier finden Sie 12 Modelle, davon 11 mit Bildern und 1 mit Schaltbildern.
Alle gelisteten Radios usw. von Rola Company, The; Oakland, CA
Sammlungen
Das Modell Rola Cone Re-Creator befindet sich in den Sammlungen folgender Mitglieder.