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User Manual for RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control Click to enlarge the picture
Contents of the user manual for the RDL DB-SH1 Stereo Headphone Amplifier -
- Product category: Headphone 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 Headphone Amplifiers
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User manual for the RDL DB-SH1 Stereo Headphone Amplifier - 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 black version of the Radio Design Labs DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. The DB-SH1 is ideally suited to applications as diverse as language translation, museums, interview studios and music stores.
The module mounts conveniently in a precut opening in a wood or metal enclosure or in various RDL mounting accessories. The DB-SH1 is a dual channel headphone amplifier with balanced/unbalanced left and right inputs. Each input accepts operating levels between -20 dBV and +20 dBu. Two recessed slide switches located on the side of the rear enclosure are set prior to mounting the module. One switch is provided for setting the input sensitivity. The mode switch selects between stereo and mono operation. In the mono position, the left input is used to drive both output channels. When the module is used in a monaural system, only the left channel input must be wired.
The front panel level control is a long life potentiometer controlling matched VCAs. Audio does not pass through this control, assuring years of noise free level adjustment. The output amplifiers deliver more than 50 mW into either high or low impedance headphones through a durable, metal ¼" (6.3 mm) standard headphone jack. Module operation is from a 24 VDC ground referenced power supply. It can also operate from a 12 VDC supply with a 6 dB reduction in headroom and a maximum output power of 10 mW. UPC: 813721014832 In the Box RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black) Limited 3-Year Warranty Table of Contents
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Technical parametersRDL DB-SH1 Specs | Inputs | 10 kΩ balanced or unbalanced bridging | | Input Level | +4 dBu nominal (low input sensitivity);
-15 dBV nominal (high input sensitivity) | | Maximum Input Level | +21 dBu (low input sensitivity);
+3 dBu (high input sensitivity) | | Output | Normal: 10 mW into 100 Ω
Maximum: 50 mW into 100 Ω | | THD + N | < 0.5% at 1 kHz | | Frequency Response | 30 to 20,000 Hz (± 2 dB) | | Noise | < -70 dB below normal operating level | | Gain | User-adjustable on front panel 18.5 dB (maximum, high input sensitivity); Unity (maximum, low input sensitivity) | | CMRR | > 60 dB (50 to 120 Hz) | | Crosstalk | Below noise floor (20 to 20,000 Hz) | | Operating Temperature | 32 to 131°F (0 to 55°C) | | Power Requirement | 24 VDC at 50 mA | | Dimensions | Not specified by the manufacturer | | Weight | WEEE: 0.330 lb (0.149 kg) | | | | Package Weight | 0.5 lb | | Box Dimensions (LxWxH) | 4.9 x 4.3 x 2.2" |
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