PRODUCT Sennheiser IE 900
TYPE In-ear monitor
● Driver type: single dynamic
● Shell: aluminium
● Cables: 2.2mm and 4.4mm balanced, 3.5mm
DISTRIBUTOR Sennheiser UK Ltd.
Also recognised by the Beyerdynamic-engineered A&K, a single driver is good for cohesion and keeping phase issues in order and, of course, has no need of a crossover and its attendant presence region distortions. A smooth and extended bass and treble? Not so much. This is where clever chimes in. The so-called X3R driver builds on the “Extra Wide Bandwidth” principles of Sennheiser earlier designs. Its diaphragm is formed from a blend of polymers that make it both exceptionally stiff and low in resonance.
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