Difference between revisions of "Rogers BBC LS3/5a"

(Erläuterung zu Mylar.)
(Bericht: Einen hinzu.)
 
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== Daten ==
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== Dates ==
'''Allgemein'''
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'''General'''
* Hersteller: [[Rogers]]
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* Manufacturer: [[Rogers]]
* Modell: LS3/5a
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* Model: LS3/5a
* Baujahre: 1989
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* Years of manufacture: 1975 to about 1989;
* Hergestellt in: England
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* Manufactured in: England;
* Farbe: N/A
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* Colour: N/A
* Abmessungen (B/H/T): 7.5x12x6.25 Zoll // 188x300x156 mm
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* Dimensions (WxHxD): 188 x 300 x 156 mm (7.5 x 12 x 6.25 in.)
* Gewicht: 11,7 lbs // 5,3 kg
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* Weight: 11.7 lbs (5.3 kg)
* Neupreis ca.: $1695
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* Original Price Approx: $1,695
  
'''Anschlüsse'''
 
Zweipolige Klemmschrauben
 
  
'''Technische Daten'''
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'''Connections'''
* Volumen: 5 Liter
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* Two-pole terminal screws
* Empfohlene Verstärkerleistung: 50 Watt
 
* Impedanz: 10 Ohm
 
* Empfindlichkeit SPL: 82 dB/1W/1m
 
* Frequenzgang: 80 - 20.000 Hz
 
* Übergangsfrequenz: 3.000 Hz
 
* Gehäuse: Druckkammer
 
* Treiber: Zwei-Wege // 110 mm Bextrene-cone Woofer // 25 mm Mylar-dome tweeter (siehe dazu Anmerkungen);
 
* Sonstiges: Standfußmontage.
 
  
'''Anmerkungen'''
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'''Technical data'''
* Die gleiche Lizenz baute in den 80er Jahren auch [[Spendor]], siehe [[Spendor LS3/5(A)]].
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* Volume: 5 litres
* Bei den Chassis griff die BBC auf KEF zurück: http://www.kef.com/html/de/explore/about_kef/kef/index.html ,diese Seite referenziert auf BBC-Berichte. <br />  
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* Housing: pressure chamber
* und [https://en.wikipedia.org/wiki/LS3/5A LS3/5A bei englischer wikipedia].
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* Driver: two-way (see notes for details)
* Mylar ist eine "hochmoderne dünne jedoch starke Polyesterfolie" (Quelle: www.kef.com/html/de/explore/about_kef/raymond_cooke/index.html).
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**25 mm Mylar-dome tweeter;
* Bextren ist der kommerzielle Name für [https://de.wikipedia.org/wiki/High_Impact_Polystyrene HIPS, ein Copolymer]
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**110 mm Bextrene-cone woofer
<br />
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* Recommended amplifier power: 50 watts
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* Sensitivity SPL: 82 dB/1W/1m
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* Frequency response: 80 - 20,000 Hz
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* Crossover frequency: 3,000 Hz
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* Impedance: 10 Ohm
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* Other: Stand mounting
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'''Notes'''
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* The same license built in the 80s also [[Spendor]] and [[Harbeth]], see [[Spendor LS3/5(A)]], [[Harbeth LS3/5A]].
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* For the chassis, the BBC resorted to [[KEF]]: http://www.kef.com/html/de/explore/about_kef/kef/index.html , this page references BBC reports. <br />  
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* and [https://en.wikipedia.org/wiki/LS3/5A LS3/5A at English wikipedia].
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* ''Mylar'' is a "state-of-the-art thin yet strong [[wp:polyester film|polyester film]]" (source: www.kef.com/html/de/explore/about_kef/raymond_cooke/index.html , retrieved 4 October 2015).
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* Bextrene is the commercial name for [[https://de.wikipedia.org/wiki/High_Impact_Polystyrene HIPS, a copolymer]]
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== Note ==
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By 1988, Rogers had manufactured approximately 43,000 LS3/5.
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== Report ==
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* [https://www.stereophile.com/content/bbc-ls35a-loudspeaker-1989-rogers-version stereophile.com from February 1989] (English), retrieved March 7, 2020.
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* [http://www.g4dcv.co.uk/ls35a/kingswood.html pictures of the prototype and Rogers listing 1974], retrieved March 21, 2020.
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[[Category:Loudspeaker]]

Latest revision as of 08:44, 21 March 2020

Dates

General

  • Manufacturer: Rogers
  • Model: LS3/5a
  • Years of manufacture: 1975 to about 1989;
  • Manufactured in: England;
  • Colour: N/A
  • Dimensions (WxHxD): 188 x 300 x 156 mm (7.5 x 12 x 6.25 in.)
  • Weight: 11.7 lbs (5.3 kg)
  • Original Price Approx: $1,695


Connections

  • Two-pole terminal screws

Technical data

  • Volume: 5 litres
  • Housing: pressure chamber
  • Driver: two-way (see notes for details)
    • 25 mm Mylar-dome tweeter;
    • 110 mm Bextrene-cone woofer
  • Recommended amplifier power: 50 watts
  • Sensitivity SPL: 82 dB/1W/1m
  • Frequency response: 80 - 20,000 Hz
  • Crossover frequency: 3,000 Hz
  • Impedance: 10 Ohm
  • Other: Stand mounting

Notes

Note

By 1988, Rogers had manufactured approximately 43,000 LS3/5.

Report