Reference wireless in-ear-monitoring receiver

No compromise

SPR4500 IEM is a reference wireless diversity in-ear-monitoring receiver for live applications and professional installations. Its provides antenna diversity, with two matched antennas, reference radio electronics design and a manual radio signal attenuator for more robust radio reception in crowded environments. SPR4500 IEM features an automatic set-up function for finding clean frequencies. The receiver provides a backlit display indicating signal strength and battery status. A central positioned on/off/volume control can be operated intuitively. With the “Individual mix”-function a personalized monitor mix can be set up easily. Integrated charging contacts allow the optional BP4000 battery pack to remain inside the receiver while being charged on the CU4000 charger (optional).

Tuote# SPR4500 IEM Group_


Finish Black
Switching bandwidth ≤ 30.5 MHz (country dependent)
Output Power 10, 20, 50 and 100mW selectable (country dependent)
Modulation FM, MPX Stereo
Channel separation > 40 dB(A)
Audio bandwidth 35 – 15 000 Hz (± 3 dB)
T.H.D. ≤ 0.8 %
SNR (A-weighted) typ. >90 dB(A)
Audio Output 3.5mm jack socket, 150 mW (rms)/16 Ohm
Battery life 6 bis 10 Stunden volume dependent, 2 Batteries AA or BP 4000


Length 2.8 in (70 mm)
Height 3.5 in (91 mm)
Width 1 in (25 mm)
Net Weight 0.36 lbs. (165 g)

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