Overview
Stress Freefor large theater, installed sound and tour sound applications
The PT4500 is an analog reference wireless body-pack transmitter with supreme wireless audio quality for instrumental and vocal use. The pilot tone prevents unexpected system startup noise, continuously sending transmitter data, including mute switch position and remaining battery life, to the receiver. An optional RMS4000 external mute switch allows the user to mute the transmitter remotely.
WMS4500 transmitters offer an unmatched battery life of 15 hours with two standard AA-size alkaline batteries. With the integrated charging contacts, the optional BP4000 battery-pack can be charged inside the transmitter.
Features
Supreme audio quality - best with guitar, electric bass and highly demanding vocals
Up to 50mW transmission power - maximum radio signal strength for long-distance applications
15 hour battery life - with two standard AA-size alkaline batteries
Remaining battery life in hours - real-time display of operating time left
Integrated charging contacts - for quick charging of BP4000 battery-packs inside the transmitter
Specifications
| Audio | | Audio frequency bandwidth | 35 to 20000 Hz | | Signal to Noise | 120 dB-A | | THD at 1 kHz | 0.3 Prozent |
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| Miscellaneous | | Operating temperature range | -10 to 55 Celsius | | Peak deviation | 48 kHz |
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| Pocket Transmitter | | Nominal deviation | 20 kHz | | Radio Output Power (min/max) | 10 to 50 mW | | Transmitter Synchronization | Manual |
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| Audio Input | | Type | Mini XLR | | Gender | Female | | Contacts | 3-pin | | Maximum audio level | 12 dB | |
| Mute Switch Interface | | Type | Jack Mono (1/4") | | Gender | Female | |
| Battery 1 | | Battery type | LR6 AA alkaline battery | | Number of batteries | 2 | | Operating time | 15 h | |
| Battery 2 | | Battery type | HR 6 AA (NiHM) rechargeable battery | | Compatibel Charging System | CU4000 | | Number of batteries | 2 | | Operating time | 15 h | |
| Battery 3 | | Battery type | AKG BP 4000 | | Compatibel Charging System | CU4000 | | Number of batteries | 1 | | Operating time | 12 h | |
| Design | |
| Dimensions / Weight | | Length | 25 mm | | Height | 91 mm | | Width | 70 mm | |
| Radio | | Switching bandwidth | 30 MHz | | Recommended simultaneous channels | 50 | | Number of selectable frequencies | 1220 (selectable in 25kHz steps) | | Frequency Selection | Selectable frequency in 25kHz steps | | Wireless channels within device | - | | Radio range (Line of sight) | 100m (depending on antenna system) | | Switchable RF power | no | | Modulation | FM | | Encryption | No encryption | | Diversity | True Diversity | | Pilot Tone | yes |
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