S-4 Piano Black
Quad has always prided itself as providing the complete solution to music lovers. Each Quad component marries perfectly to other parts of the hi-fi system and is designed with one target – to be ‘The Closest Approach To The Original Sound’.
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Specifications
-
Country (main office)
United Kindgdom
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Type
floorstanding speaker
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Series
S
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Active/Passive
passive
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Tweeters number
1
All specifications
Quad S-4 Floorstanding Speaker Piano Black
Quad has always prided itself as providing the complete solution to music lovers. Each Quad component marries perfectly to other parts of the hi-fi system and is designed with one target – to be ‘The Closest Approach To The Original Sound’.
Quad S Series loudspeakers fulfil that objective admirably. Sporting a ribbon treble unit aligned, through sophisticated crossover networks, to Quad’s advanced bass-midrange drivers, each and every loudspeaker in the range delivers all the nuances and passion of the original performance. Whatever your musical taste you will find that Quad S Series speakers create a believable musical presence in your listening room that will have you discovering your music collection all over again.
Specification:
- General description: 3-way floorstanding speaker
- Enclosure type: ABR
- Transducer complement: 3-way
- ABR: 3 x 125mm
- Bass driver: 2 x 125mm Woven Kevlar
- Midrange driver: 100mm Woven Kevlar
- AV shield: No
- Treble driver: 45 x 12mm true ribbon
- Sensitivity (2.83V @ 1m): 88dB
- Recommended amplifier power: 40-200W
- Nominal impedance: 6Ω
- Minimum impedance: 3.5Ω
- Frequency response (+/-3dB): 44Hz ~ 23kHz
- Bass extension (-6dB): 37Hz
- Crossover frequency: 520Hz & 3.9kHz
- Cabinet Volume (in litres): 47.0L
Basic
Country (main office)
United Kindgdom
Type
floorstanding speaker
Tweeter size, inches
1.77 x 0.47
Midrange driver type
ribbon
Crossover frequency
520 Hz, 3900 Hz
Maximum frequency, Hz
23000
Response level, bD/Wt/m
88
Speaker enclosure
passive radiator
Terminals
Bi-wiring/Bi-amping
Power
Minimum recommended power, W
40
Dimensions
About brand
Quad
The history of Quad is one of technical achievement in the field of sound reproduction. It is a story that began with the Quad 1 amplifier, which brought the benefits of 15 years knowledge and experience in professional audio and industrial products to the task of making the most accurate domestic audio amplifier of its age.A few years later, in 1953, the product which set the standard for amplifiers was the Quad II Power Amplifier, the time of Queen Elizabeth’s Coronation and the year in which Mount Everest was finally conquered. This amplifier pioneered the principle of cathode coupling through the output transformer to reduce harmonic distortion to almost negligible levels. Such was its clear superiority that this model remained in production for 18 years. Three years later, in 1956, Quad demonstrated the first true full-range electrostatic loudspeaker. This remarkable product (known later as the ESL 57) used a virtually mass-less plastic film as a moving diaphragm between two charged plates. Compared with moving coil loudspeakers, the ESL 57 was free of unwanted colourations and distortions. This landmark product remained in production, virtually unchanged, for 28 years.
Find out more about Quad