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Simone Sedda

Original and matched pair

The LS3/5A were designed by BBC engineers for mobile monitoring use. They needed to be compact, so they could be fitted into BBC vans. The speakers feature 5l sealed enclosure with 110mm bass driver and 19mm dome tweeter. There is nothing particularly special or amazing about each of these drivers. On the other hand, the crossover is quite complicated as most of frequency equalisation (flattening) happens there. I personally believe that the crossover changes these ‘ok sounding’ drivers in to great sounding speaker. The BBC did not produce the speakers themselves, instead, they outsourced production to number of British companies (e.g. Rogers, Kef, Spendor, Goodmans, Chartwell, etc.). From what I gathered the Rogers LS3/5A are most popular, and therefore, cheapest to buy. The other brands are more sought after, and consequently, more expensive. All of these manufacturers used Kef drivers (T27 SP1032 for tweeter and B110 SP1003 for bass). It is important to mention that not all of the B110 drivers product by Kef were the same. The variations on the production line where quite high, which meant that only small percentage of these drivers were approved by BBC and used for LS3/5A production.
 

CHARTWELL LS3/5A SPECS
Frequency Response:	80 – 20,000Hz
Sensitivity:	82.5dB (1W input, measured at 1m)
Impedance:	15Ω
Power Capacity:	25W (continuous program)
High Frequency Driver:	T27 SP1032 19mm (0.75″) Mylar Dome
Low Frequency Driver:	B110 SP1003 110mm (4.5″) Bextrene Diaphragm
Crossover Frequencies:	3,000Hz
Enclosure Type:	Closed
Enclosure Dimensions (HxWxD):	300x190x160mm (12×7.5×6.25″)
Weight:	5.5kg (each speaker)

Very good - Number of items: 2 - Including: Speaker set - No extra's

ROGERS - Ls3/5A BBC Monitors 15ohm Speaker set

Audio Equipment

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10 March

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The Netherlands

Italy

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Romania

Japan

Portugal

Poland

Austria

Greece

Hungary

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United Kingdom

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Brand

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Country of origin

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Material

Plastic

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Aluminium

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Condition

Good

Excellent

Very good

Mint

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Various conditions

Fair & Poor

Mint (M)

Good condition - used with small signs of aging & blemishes

Excellent (EX)

Good condition - used with small signs of ageing

Good condition

As new - unused

Fair condition -  heavily used & with possibly minor parts missing

Extras

No extra's

Power cord

Remote control

+ Extra item (see description)

Power supply

Original user manual

Refurbished

Power Adapter

No cables

Case

Brochures

Flight Case

Microphone Shock Mount

+extra item (see description)

Anti-pop Filter

Limited edition

Period

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Tested and working

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1900-2000

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Record Label

Creator

Dieter Rams

Japan & Related

Pier Giacomo Castiglioni

Achille Castiglioni

Good - Number of items: 2 - Including: Analogue mixer - No extra's

Targa - TM-2100 Analogue mixer

Excellent - Number of items: 1 - Including: Solid state multi-channel receiver - No extra's

Yamaha - RX-V559 Solid state multi-channel receiver

Mint - Number of items: 1 - Including: Box, Microphone Shock Mount, Power cord, Case

Sanyo - CX-8006R Cassette recorder-player

Very good - Number of items: 1 - Including: Power cord

Sony - DVP-S7700 CD player

Very good - Number of items: 1 - Including: Solid state integrated amplifier - + Extra item (see description)

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ROGERS - Ls3/5A BBC Monitors 15ohm Speaker set

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