Braun LS 150PA specifications

Category : Active speakers

Brand : Braun

General

Connections

Tech nical data

Amplifiers

Loudspeakers

Special equipment

• Manufacturer: Braun < /li>
• Model: LS 150 PA
• Type: Active loudspeaker
• Years of construction: 1982 - 1988
• Manufactured in:
• Colors:
  • 1983: Black, other colors on request
  • 1984 - 1986: Black, White, other colors on request
  • 1987 – 1988: Black , Gray, Redwood
• Power consumption: max. 450 W, Standby: 3 W
• Dimensions: 1060 x 265 x 300 mm (HxWxD)
• Gross volume: 70 l
• Weight: 21.5 kg
• New price approx.: 2'300 DM per piece

• 1983: Black, more colors on request
• 1984 – 1986: Black, White, other colours on request
• 1987 - 1988: Black, Grey, Redwood

• Number of inputs:
• Input: RCA
• Sensitivity: 1 V / 22 kOhm , preamplifier or 10 V/600 Ohm , power amplifier switchable

• Rated power: Low-frequency channel 130 W; medium/high-frequency channel 80 W
• Music power: low-frequency channel 180 W; medium/high-frequency channel 120 W
• Power bandwidth PA 1: 10 Hz - 80 kHz
• Power bandwidth LS 150 active: 18 - 30 kHz
• Crossover frequency: 700 Hz
• Crossover: 12 dB/octave
• Attenuation factor: 80 at 100 Hz, 45 at 10 kHz
• External voltage distance: both channels 100 dB
• Crosstalk attenuation (1 kHz): 80 dB

• Type of construction: 3-way closed, floorstanding speaker
• Chassis:
  • Woofer: 2x 210 mm cone
  • Midrange driver: 1x 50 mm dome
  • Tweeter: 1x 25 mm dome
• Load capacity (nominal/music b.): 150 W / 300 W
• Efficiency: 91 dB / W / m
• Frequency response: 18 - 25'000 Hz
• Transition ranges: 500 / 4'500 Hz
• Impedance: 8 ohms

• Woofer: 2x 210 mm Cone
• Midrange: 1x 50 mm dome
• Tweeter: 1x 25 mm dome

• VV and signal decoder are operated in standby circuit, the power amplifier is automatically switched on or off.
• Can be operated on preamplifiers or power amplifiers
• Fuses for tweeters and midrange drivers
• Grating made of perforated steel, covered on the inside with acoustic fleece

• Other models of the same series:
• Braun LS 40
• Braun LS 60
• Braun LS 70
• Braun LS 80
• Braun LS 100
• Braun LS 120
• Braun LS 130
• Braun LS 150
• Braun LS 150PA
• Braun LS 200
• Braun SW 2 (subwoofer)

• Excerpt from Brochure: Braun LS 150

• Report at "Radiomuseum": The LS 150 floorstanding speaker will be activated together with the LS 150 passive version for the first time in the catalogue Sept. mentioned in 1982, in addition, the amplifier insert PA1 as the blurb of the front. Both are described as new, but the insert PA1 is without further technical information. The following year (Aug. 1983, Braun Hifi. The future as a concept.), both are again called new, but the technical data of the PA1 are given in detail for the first time. If you look at the active version in the context of the Braun amplifier spectrum from 1983 - 1986, it is noticeable that there is no separate Braun preamplifier during this time. The LS 150 aktiv can therefore only be connected to Atelier-A2, where the signal can be decoupled from behind the VV. But the investment in two power amplifiers remains. It was not until 1987 that the adequate partner appeared with the Atelier CC 4 as a preamplifier (+ tuner).
• On Nov. in 1984, the LS 150 box (optical) and the PA1 power slot were electrically modified (now PA1/1). The revised version can be recognized by the following features:
  • Elimination of the previously bright decorative rings on the LS chassis
  • HT chassis has been acoustically revised
  • The resistor circuit of the OV IC 501a has been changed, the capacitor C 622 is omitted, C 621 + C 508 are modified.

• Elimination of the previously bright decorative rings on the LS chassis
• HT chassis has been acoustically revised
• The resistor circuit of the OV IC 501a has been changed, the capacitor C 622 is omitted, C 621 + C 508 are modified.

Comment:

Comment box:

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