RTA3.5

Microphone for real-time frequency response measurement and processing with DSP amplifiers STEALTH7.1DSP, MINI150.4DSP..

The ETON RTA3.5 is a newly developed, high-quality measurement microphone for measuring vehicle interior acoustics and is required for the RTA function (Real Time Analyzer) integrated in the ETON DSP amplifiers. It enables fine-detail frequency response measurements in the vehicle interior and thus offers the user the possibility to optimally adjust the speakers and subwoofers installed in the vehicle to the acoustic conditions. The high-quality 160 mm aluminum SQ rod measurement microphone has a 5 m long, detachable, multi-shielded RCA jack cable that was specially designed for ETON amplifiers.

The RTA3.5 is optimized for use with modern Class-D amplifiers and has a measurement range of 20 Hz - 20 kHz with a sensitivity of -35 ñ4 dB (0 dB = 1V/pa, @ 1 kHz). A signal-to-noise ratio of > 62 dB, an impedance < 2.2 KOhm, the operating voltage of 2 V with a current consumption of max. 0.5 mA and the undervoltage operation of approx. -3 dB @ 1.5 V are guarantees for an optimal measurement. Precise time-of-flight corrections, actual-value control and the exact adjustment of active filters (for the adjustment of crossover frequencies, shelf filters and phase positions) as well as the exact setting of EQ bands in the frequency spectrum can thus be realized: full control thanks to Real Time Analyzer and RTA3.5 measuring microphone - Engineered in Germany.

Technical data

Length: 160 mm
Connector: 3.5 mm jack Cable length: Sensitivity: -35ñ4dB(0dB=1V/pa,1KHz)
Impedance: 2.2 kOhm
Frequency range: 20- 20 KHz
Max working voltage: 10 Volt
Standard working voltage: 2 Volt
Power consumption: Max 0.5 mA
Sensitivity reduction: within -3dB at 1.5 volts
S/N ratio: 62 dB