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Bang & Olufsen - Beovox S55 Passive Loudspeakers

Price: $350

Beovox S55 was an ideal bookshelf speaker, but could also be used as a wall-mounted or free-standing model with the optional fittings available separately.

The pressure chamber cabinet contained a 21cm bass driver, an 11,5 mid-range/phase-link unit and a 2,5cm tweeter. Power handling was 55 watts RMS.

Manufactured: 1981 – 1987
Designer: Jacob Jensen
Colours: Rosewood, Teak, White, Oak

Beovox S55 Passive Loudspeakers 2

Product Specifications

RMS power handling capacity: 55 W
Music power handling capacity: 75 W
Impedance: 8 ohms
Frequency response 4+ -8 dB: 50 – 20,000 Hz
Frequency response +/- 4 dB: 60 – 17,000 Hz
Sensitivity 1W: 4 W
Distortion 250 – 1000 Hz: <1.5%
Distortion > 1000 Hz: <1%
Woofer: 21cm
Phase-link, mid-range: 11.5cm
Tweeter: 2.5 cm dome
Net volume: 20 litre
Gross volume: 32 litre
Dimensions W x H x D: 26.5 x 52.5 x 23cm
Weight 8 kg

Boston Acoustics - Boston A400

Price: $600

Frequency response: 38 Hz to 25 KHz at +_3db

Sensitivity: 88 Db/W/M

Crossover frequencies: 300 Hz and 3000 Hz

Power handling: 150 Watt

2 8″ woofers with ventilated poles

6″ midrange

1″ CFT tweeter

4 Ohm impedance

Walnut finish.

Boston Acoustics - Boston A400 1

IMF - TLS 50

Price: $990

The TLS 50 II retains the full transmission line loading of the Monitor loudspeakers.

A transmission line provides for the driver a near ideal acoustic environment and the reputation of the TLS for low colouration and extended bass performance is well established.

The TLS 50 II employs a bextrene cone bass unit with large pole and huge magnet, allowing long excursions without distress or undue overhang.

The quality of the bass response is very special. ‘Line’ bass is different from the ‘box’ bass of conventional speakers. It is free, more dynamic and exists in space rather than in an enclosure. The bass line forms a pressure loading device so that low frequencies are felt, rather than heard.

Both the TLS 50 ll and the ALS 40 II employ the same midrange, wide dispersion tweeter and complex crossover configuration which includes phase correction circuitry to compensate for unit spacing.

The TLS 50 II however, also boasts a super-tweeter which further extends the high frequency performance well beyond audibility and as such compliments the plane source propagation of the line, down to sub-sonic frequencies.

IMF - TLS 50 Speakers 2

Product Specifications

Type: 3 way, 4 driver loudspeaker system
Frequency Response: 23Hz to 20kHz
Recommended Amplifier: 30 to 70W
Crossover Frequency: 375, 3000, 15000Hz
Impedance: 4Ω
Sensitivity: 97dB
Bass: 1 x 205mm bextrene cone
Midrange: 1 x 100mm cone
Tweeter: 1 x dome
Super Tweeter: 1 x dome
Enclosure: active transmission line
Weight: 27kg
Year: 1976

Recent Customer Reviews

James Hunter
James Hunter⭐⭐⭐⭐⭐
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Perfect service: great advice, took the time for us to fully understand what we really needed, and they help you listen to - and play! - music better and more often. Go to them!
Fabrizio Caprioli
Fabrizio Caprioli⭐⭐⭐⭐⭐
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What a great experience! I collect vintage hi-fi and this is the place to go if you want to get back in full operation your precious equipment. High professionalism and competence from the whole staff ,we needed a place like this in Montreal.
Vaespaarg Zmire
Vaespaarg Zmire⭐⭐⭐⭐⭐
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These guys really loves what they're doing! Fixing and bringing back to life vintage turntables, amplifiers, cassette decks,...you name it! The trend is back, vinyl sales are growing steadily these days, people are searching for the quality of analog sound.

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