Live Sound / Club Music
Theater
Rental
House of Worship
•
Diversity bodypack receiver with rugged metal housing
•
Reference audio quality with ultra linear frequency response
•
High-end and powerful headphone amplifier
•
Two matched antennas and a new reference radio electronic design ensure reliable transmission
•
Enhanced automatic setup shows number of free channels
•
Preset groups support TV channels
•
Manual radio signal attenuator
•
Quick change of individual programmed frequencies for monitor engineers
•
Stereo, Mono and Dual mode for individual mix
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Operates for up to ten hours off two AA size dry lithium batteries, six hours off two AA size dry
alkaline batteries and 7 hours off optional BP 4000 battery pack with µC controlled battery
management
SPR 4500 IEM
Item number:
SPR 4500
3096H00xx0
Architects’ and Engineers’ Specifications
The diversity bodypack receiver shall operate over a 30 MHz UHF frequency range in one of 7 bands from 500 MHz to 823 MHz. The receiver shall offer up to 1,200
discrete operating frequencies within that band. The receiver shall operate on a diversity principle and shall be housed in a rugged metal case. The receiver shall provide
intermodulation-free frequencies from an integrated frequency database and an automatic function for finding an available frequency. Total harmonic distortion at 1 kHz
for rated deviation shall be no greater than 0.8% and stereo, mono and dual function for individual mix shall provided. The receiver shall provide a manual squelch
adjustment and a manual radio signal attenuator for optimum system operation. Headphone output shall be a 3.5 mm stereo jack connector. The bodyback receiver shall
be controlled by a jog and shall provide a backlit display with automatic power saving as well as a programmable LED (red/green) showing the overall system status.
The display shall indicate the transmitter battery capacity, as well as the radio signal input level, frequency, frequency group and channel. The audio bandwidth of the
receiver shall be 35 Hz to 15 kHz; S/N 90 dB(A); THD at 1 kHz <0.8%. The receiver shall operate with a companding system that is complemented by the transmitter.
The diversity receiver shall provide a quick change of individual programmed frequencies to support monitor engineers. Charging contacts on the bottom panel shall
allow the easy charging of a battery pack inside the transmitter. The receiver shall operate off two AA size LR6 dry batteries, two AA size NiMH rechargeable batteries or
a µC controlled battery pack or two AA size FR6 lithium batteries. The receiver shall measure 70 x 91 x 25 mm and weigh 165 g. The diversity bodypack receiver shall
be the AKG SPR 4500 IEM or equivalent.
Wireless In-Ear Monitoring System
SPR 4500 IEM Transmitter Specifications
Carrier frequency range
Band 1:
650.1 to 680.5 MHz
Band 5-TH:
790.1 to 805.9 MHz
Band 3-A: 720 to 750.5 MHz
Band 5-IL:
794.1 to 805.9 MHz
Band 3-K: 740.1 to 751.9 MHz
Band 7:
500.1 to 530.5 MHz
Band 4:
759.5 to 789.9 MHz
Band 8:
570.1 to 600.5 MHz
Band 5-A: 790.1 to 819.9 MHz
Band 9:
600.1 to 605.9 & 614.1 to 630.5 MHz
Band 5-JA: 797.125 to 805.875 MHz
Band 9-U:
600.1 to 630.5 MHz
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
Dimensions
70 x 91 x 25 mm (2.8 x 3.5 x 1 in.)
Net Weight
165 g (0.36 lbs.)
Patents Remaining battery life (Patent no. AT 408.280, GB 2.349.230, US 6,344,730)
