PP-025B Mixer Preamplifier

Introduction

The PP-025B Mixer Preamplifier is a robust audio management solution operating on 24 V DC, designed to facilitate efficient control over audio inputs in diverse environments. With its integrated priority circuits on inputs 1, 2, and 3, it ensures critical messages take precedence, enhancing clarity and reliability in paging and public address applications. Optional integration of the CK-025 chime unit further extends its functionality, adding audible alerts for enhanced communication capabilities.

Key Features and Specifications

Audio Inputs and Outputs

PP-025B offers comprehensive connectivity with 8 inputs featuring both balanced and unbalanced configurations. Inputs 1, 2, and 3 are equipped with priority circuits, enabling them to override other inputs as per configured settings. The unit includes multiple output options such as line outs and REC outs, supporting flexible routing of audio signals to external devices and recording equipment.

Power Efficiency and Design

Operating with a power consumption of 200 mA or less, PP-025B is designed for efficient energy use without compromising performance. Its compact form factor and durable pre-coated steel plate finish make it suitable for rack-mount installations, ensuring seamless integration into existing audio setups while maintaining aesthetic appeal.

Audio Quality and Control

Equipped with tone controls offering adjustments at 100 Hz and 10 kHz ±10 dB, PP-025B delivers clear and customizable audio output tailored to specific acoustic requirements. With a signal-to-noise ratio exceeding 60 dB and distortion levels under 1%, it maintains high fidelity and reliability across its operational frequency range of 50 Hz to 15 kHz ±3 dB.

Additional Features and Accessories

PP-025B includes essential accessories such as connection cords, power supply cables, and rack-mounting hardware for convenient installation and setup. The unit supports optional integration of the CK-025 chime unit, enhancing its utility in environments requiring audible alerts and prioritized audio management.

Conclusion

The PP-025B Mixer Preamplifier combines robust functionality with intuitive design, making it an ideal choice for applications demanding efficient audio control and clear communication. Whether used in educational institutions, corporate offices, or commercial venues, PP-025B ensures reliable performance, versatile connectivity, and enhanced audio quality, thereby meeting the diverse needs of modern audio installations.