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User Manual for RDL FP-PA18H 18W Mono Hi-Temp Audio Amplifier Click to enlarge the picture
Contents of the user manual for the RDL FP-PA18H 18W Mono Hi-Temp Audio
- Product category: Standard Amplifiers RDL
- Brand: RDL
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for RDL Standard Amplifiers
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User manual for the RDL FP-PA18H 18W Mono Hi-Temp Audio contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any RDL product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official RDL user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a RDL product will considerably shorten its lifespan!
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Product description The RDL FP-PA18H 18W Mono Hi-Temp Audio Amplifier features a balanced line level input that may be connected to an unbalanced audio source. A gain control located next to the terminal block is designed to be adjusted manually or with a trimming screwdriver (not included). The gain range will accommodate standard unbalanced levels as well as professional balanced levels. The output drives one 8Ω speaker or multiple speakers connected to present an 8Ω load to the amplifier.The class D amplifier includes an analog compressor/limiter for fidelity with digital limiting. The input gain setting determines whether the limiter alone is used for clipping suppression, or if the full compressor/limiter will be used to increase the average output power. A red compression LED flashes when the limiter is preventing output clipping. Normal audio level signals remain unaffected by the compressor thereby preserving audio dynamics. If the input level is increased so that the compressor is active, the LED remains dimly lit between peak flashes. The audio is compressed according to three dynamic time constants providing aural transparency while maintaining clean, unclipped amplified audio for input overloads of up to 20 dB.The output stage includes an audio detector that illuminates the green output active LED and provides an active open collector output when the output stage is active. This output is useful to control other equipment or to verify amplifier operation using high or low frequency low level test tones. The detector triggers with only 30mW of output power at 20 Hz or 5mW of output power at 20 kHz.A blue power LED illuminates when the adapter is powered from an 24 VDC power supply. The module is equipped with both thermal and output short circuit protection. The class D output stage produces minimal heat for all levels of expected voice or music modulation. The thermal characteristics of the module case and construction permit operation over a range of 32 to 158°F. It is suitable for outdoor applications, signage, and other installations where ambient temperatures may become elevated due to limited convection. Note: The power supply must be mounted in a location with a maximum ambient temperature of 40°C. - Operation in elevated ambient temperatures up to 158°F (70°C)
- Input/output detachable terminal block connections
- Line level balanced or unbalanced input
- Compressor/limiter controls clipping
- LED to indicate audio compression threshold
- Compressor produces maximized average output power
- Class D amplifier operation
- Thermal and short circuit protection
- Compact all metal construction
UPC: 813721012685 In the Box RDL FP-PA18H 18W Mono Hi-Temp Audio Amplifier Power Supply Limited 3-Year Warranty Table of Contents
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Technical parametersRDL FP-PA18H Specs | Input | Line level (4 dBu nominal balanced; 10 dBV nominal unbalanced) | | Input Impedance | 10 kΩ balanced bridging; 5 kΩ unbalanced | | Gain Adjustment | Single turn audio taper | | Levels | Minimum Input Levels
Balanced: 18 dBu (to cross compressor threshold)
Unbalanced: 20 dBV (to cross compressor threshold)
Maximum Input Levels
Balanced: 23 dBu
Unbalanced: 21 dBV | | Frequency Response | 20 Hz to 20 kHz (+/ 1 dB) Measured at compressor threshold level equaling 12 W RMS output power | | THD + N | < 0.5% (20 Hz to 20 kHz) Measured at compressor threshold level equaling 12 W RMS output power | | Compressor | Threshold 3 dB below rated output, automatically adjusting attack and release times | | CMRR | > 45 dB (50 Hz to 3 kHz) | | Noise | < 72 dB (below 18 W RMS, 4 dBu input) | | Output Power | 18 W RMS into 8 Ω | | Output Circuit | Class D | | Threshold | Output Signal Detector Threshold: 30 mW @ 20 Hz; 20 mW @ 30 Hz; 10 mW @ 50 Hz; 5 mW @ 65 Hz through 20 kHz | | Output | Output Signal Detector Output: Open collector, 5 mA | | Indicators | Red LED: Comp LED indicates compressor activity
Green LED: Output active (controlled by output signal detector)
Blue LED: Power on | | 24 Vdc Power Supply Current | 80 mA (idle), 975 mA (maximum), ground referenced | | Power Supply | 100 to 240 VAC, 50/60 Hz, 1 A maximum; 24 VDC output to module | | Ambient Operating Environment | 32 to 158°F (0 to 70°C) | | Dimensions (H x W x L) | 1.15 x 3.25 x 3.00" (2.92 x 8.26 x 7.62 cm) | | | | Package Weight | 1.1 lb | | Box Dimensions (LxWxH) | 7.2 x 5.1 x 2.5" |
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