Here we have a pair of one of the most iconic loudspeakers.. Quad's ESL57 Electrostatic Floorstanding Speakers are the stuff of legend and it is rare to find a pair in as good a condition as these AND they have sequential serial numbers. Yes, there are a couple of minor blemishes but they are around SIXTY years of age. First introduced in 1957, the world's first commercial full range electrostatic loudspeaker remains the standard by which all others are judged.
Using closely coupled moving elements some two hundred times lighter than the diaphragms of moving coil loudspeakers and being entirely free of cabinet resonances and colouration, this loudspeaker overcomes the usual major problems of loudspeaker design and provides remarkably natural reproduction of sound. This explains why the Quad electrostatic loudspeaker is used by broadcasting and recording organisations all over the world, in applications where quality is of prime importance, and as a standard of reference by the majority of loudspeaker manufacturers. There is no known method of expressing the performance of a loudspeaker in meaningful terms. Impressive specifications and curves are no substitute for a listening test and a comparative demonstration using music and speech material is strongly recommended. The speaker is enclosed within expanded metal grilles with polished wood end frames and feet and is suitable for use under normal domestic living conditions throughout the world.
It is designed for use in rooms up to 140 cubic metres. It is essential for both performance and reliability that this loudspeaker be used only with a Quad amplifier or one especially designed for this type of loudspeaker.
Specifications: Maximum Output: 6' on axis in free space 93 dB referred to 0.0002 dynes/cm² in frequency range 50 Hz - 10 kHz; 100 dB referred to 0.0002 dynes/cm² in range 70 Hz - 7 kHz Bandwidth: 45 Hz - 18 kHz. Dispersion: Approximately 70° Horizontal; 15° Vertical Impedance: 30 - 15? In range 40 Hz - 8 kHz (falling above 8 kHz) Sensitivity: 86 dB AS Voltage Range: 100 - 120, 200 - 250 volts 50 - 60 Hz Front Grille: Expanded aluminium, anodized bronze Dimensions: 790 (H) x 880 (W) x 270 (D) mm Weight: 18 kg. Established in 2003, 2ndhandhifi is the UKs largest stockist of used quality audio equipment. This means that all items described as.
Will be in good working order but may show minimal cosmetic marks resulting from everyday use. Any more significant cosmetic issues will be highlighted in the listing if present.
We are a business so (although most times we do) we cannot always answer emails over the weekend so please try to ask Monday to Friday. If you don't ask, it means you will accept our quote. Requests to cancel will be rejected. This item is in the category "Sound & Vision\Home Audio & HiFi Separates\Speakers & Subwoofers". The seller is "2ndhandhifi-uk" and is located in this country: GB.This item can be shipped worldwide.