Using a wireless microphone just got easier. The new ew DI from Sennheiser launched at NAMM 2015 means users don’t have to worry about frequency setting, matching up transmitters and receivers or getting the gain right – evolution wireless D1 offers true ease of use by doing all these time-consuming and sometimes error-prone chores for them. All users have to do is to switch the system on; the rest happens automatically with all the levels right – and a stable wireless link.
License-free 2.4 GHz transmission with intelligent channel management
D1 operates in the 2,400 to 2,483.5 MHz range, which is license-free worldwide so there is no need to register the system or pay for the use of bandwidth. Region-specific particularities are catered for in the respective country variants. To allow co-existence with Wi-Fi, Bluetooth and other 2.4 GHz systems, the D1 receiver continually scans the RF environment, and will inaudibly and seamlessly hop to another frequency if it detects any interference. Two channels are always available: besides the actual audio transmission channel, the system runs a redundant back-up channel, thus providing frequency and time diversity. Transmission reliability is further increased by fast-switching antenna diversity.
Evolution wireless D1 employs the industry-leading aptX Live codec that ensures excellent audio quality and wide dynamics for vocals, speech and instruments over the entire audio frequency range. Overall latency is a low 3.9 milliseconds, which is ideal if wireless monitors are to be used. To ensure optimum levels, ew D1 automatically sets the correct microphone sensitivity.
Via the ew D1 menu control, users have a range of audio effects at their disposal. These include a 7-band graphic equalizer, low-cut filter, automatic gain control and de-esser. The D1 vocal systems come with dynamic evolution microphone heads but can naturally also be combined with the condenser capsules from the acclaimed series, which are available as accessories.
Channel coordination and adaptive transmission power
ew D1 systems coordinate themselves fully automatically. For multiple systems, receivers will synchronize themselves to accommodate up to 15 channels in an ideal RF environment.
Powering and control options
D1 transmitters can be powered by either standard batteries or rechargeable “accupacks” that are available as accessories. These rechargeable lithium-ion packs recharge via USB or a docking charger and offer the additional advantage that the remaining battery life is indicated on the transmitter and receiver. Where required, the ew D1 system can be controlled by Apple or Android devices using a dedicated app.