Everything has the first time. The Quad has never introduced headphones, and the ERA-1 is the first. At this year's Munich Audio Show, Quad made their first pair of headphones, ERA-1, debut. Instead of following the mainstream market using dynamic diaphragm units, they developed flat diaphragm headphones; the original said that this is a design tribute to their ESL electrostatic speakers, which uses a number of Quad's own patents.
However, since it is a reference to ESL headphones, why not an electrostatic headset? Of course, the Quad is also filtered, but the electrostatic earphones must be matched with the exclusive ear expansion, so the flat diaphragm design is adopted, so that the use is more flexible. The design concepts of the two are also very similar. They are all flat diaphragms. However, the magnets of the flat diaphragm headphones are constant magnetic systems, while the electrostatic headphones are driven by electromagnetic waves.
The flat diaphragm responsible for sounding is extremely thin, even thinner than the diameter of human hair, so the weight is extremely light and the reaction speed is naturally fast, which contributes to detail regeneration. The biggest feature of the Quad ERA-1 headphones is low impedance and high sensitivity. According to the data provided by the original manufacturer, the sensitivity of ERA-1 is 108dB, and the impedance is lower to only 20Ω. In terms of data alone, it is very easy to drive. The Quad is for the ERA-1 to work with mobile devices and portable players. It seems that this will not be a pair of headphones that have to stay on the budget to buy earphones to get good sounds, and even bring out the door is no problem.
The weight of the earphones is also very important. The original factory said that in order to allow ERA-1 to wear and listen for a long time, they strive to reduce the weight of the headphones, and then match the wide and soft padded head, and the increased leather soft ear lining. Pads that perfectly cover the ears and provide proper cushioning. The original factory also attaches a pair of lambskin earmuff pads, which will be softer to wear. In short, the Quad is to make the headphones comfortable to wear. The earphone pad also has small holes, which appear to have a sound-permeable effect, which is good for recreating a good sense of space. The separate headphone cable gives you the space to upgrade the headphone cord.
Sensitivity: 108 +/- 3 dB/Vrms or 94dB/Mw @1000Hz
Frequency response: 10Hz ~ 40kHz
Total harmonic distortion: < 0.2% (@1000Hz 1mW)
Rated input power: 100mW
Maximum input power: 300mW
Signal to noise ratio: >108dB
Channel balance: < 2dB (@100Hz ~ 5kHz)
Weight: 420g (including headphone cable)
Accessories: portable storage leather bag, 3.5mm detachable Y-type headphone cable, 3.5mm → 6.3mm conversion head, leather earmuffs (already installed in headphones), lambskin cloth earmuffs (alternate)
Suggested selling price: NT$27,900
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