HiFi Audio Products for Sale
Bang & Olufsen - Beovox S55 Passive Loudspeakers
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
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%
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
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
1″ CFT tweeter
4 Ohm impedance
IMF - TLS 50
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.
Type: 3 way, 4 driver loudspeaker system
Frequency Response: 23Hz to 20kHz
Recommended Amplifier: 30 to 70W
Crossover Frequency: 375, 3000, 15000Hz
Bass: 1 x 205mm bextrene cone
Midrange: 1 x 100mm cone
Tweeter: 1 x dome
Super Tweeter: 1 x dome
Enclosure: active transmission line