Rogers BBC LS3/5a specifications

Category : Speakers

Brand : Rogers

General

Connections

Tech nical data

Notes

Rogers produced about 43,000 LS3/5 until 1988.

• Manufacturer: Rogers
• Model: LS3/5a
• Years of construction: 1975 to about 1989;
• Manufactured in: England;
• Color: N/A
• Dimensions (WxHxD): 188 x 300 x 156 mm (7.5 x 12 x 6.25 inches)
• Weight: 5.3 kg (11.7 lbs)
• Factory price approx.: $1,695
• Two-pole clamping screws
• Volume: 5 liters
• Housing: Pressure chamber
• Driver: Two-way (see notes on this)
  • 25 mm Mylar-dome tweeter;
  • 110 mm Bextrene-cone Woofer
• Recommended amplifier power: 50 Watt
• Sensitivity SPL : 82 dB/1W/1m
• Frequency response: 80 - 20,000 Hz
• Transition frequency: 3,000 Hz
• Impedance: 10 643961b8da111c0a15d770a1109a86d4
• Other: Stand mount
• 25 mm Mylar-dome tweeter;
• 110 mm Bextrene-cone Woofer
• Spendor and Harbeth also built the same license in the 80s, see Spendor LS3/5(A) , Harbeth LS3/5A .
• The BBC used KEF for the chassis: http://www.kef.com/html/de/explore/about_kef/kef/index.html , this page is referenced on BBC reports.
• and LS3/5A at English wikipedia.
• Mylar is a "state-of-the-art thin but strong polyester film" (source: www.kef.com/html/de/explore/about_kef/raymond_cooke/index.html , retrieved on October 4, 2015).
• Bextren is the commercial name for HIPS, a copolymer
• stereophile.com from February 1989 (English), retrieved on March 7, 2020.
• Pictures of the prototype and the Rogers advertisement 1974, retrieved on March 21, 2020.

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