Proel DB1A - Manual

PROEL S.p.A.
(World Headquarters - Factory)
Via alla Ruenia, 37/43
64027 Sant’Omero (TE) - ITALY
Tel. +39 0861 81241 - Fax +39 0861 887862
proelgroup.com
USER’S MANUAL
ENGLISH
INTRODUCTION
The name DI box comes from direct injection box, that means exactly: To inject a signal directly or take an audio
signal from the source and send it directly to a mixer console or recorder. Direct boxes perform several important
functions: they are designed as impedance matching and signal balancing devices. This means that they take the
high impedance of a guitar or keyboard and ‘transform’ it to the low impedance used in balanced sound systems.
Balanced signals inherently cancel noise and, due to their lower impedance, are capable of very long cable runs.
Balanced signals are the norm in professional recording, broadcast and live sound. By properly matching the
impedance you will enjoy better sound, less noise and an extended frequency response.
DB1-A is an active direct box with an isolation transformer. This means that it includes a powered circuit to convert
the impedance and balance the signal and, with the isolation transformer, a full isolation from grounds avoiding
hum and buzz problems.
The moulded sides make stacking of multiple units easier, and help isolate the case of the DI-box from the stage
both electrically and mechanically. The DB1-A derives its power from the mixing console phantom power, from a
battery or from an external AC/DC adaptor.
This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of its
working life. To prevent possible harm to the enviroment or human health from uncontrolled waste disposal, please separate this from other
types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users should contact either
the retailer where they purchased this product, or their local government offi ce, for details of where and how they can take this item for
environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract.
This product should not be mixed with other commercial wastes for disposal.
SAFETY AND PRECAUTIONS
• CAUTION - Before using this product read carefully the following safety instructions. Take a look of this manual entirely and preserve it for future
reference.
When using any electric product, basic precautions should always be taken, including the following:
– To reduce the risk, close supervision is necessary when the product is used near children.
– Protect the apparatus from atmospheric agents and keep it away from water, rain and high humidity places.
– This product should be site away from heat sources such as radiators, lamps and any other device that generate heat.
– Care should be taken so that objects and liquids do not go inside the product.
– The product should be connected to a power supply only of the type described on the operating instructions or as marked on the product.
IN CASE OF FAULT
• In case of fault or maintenance this product should be inspected only by qualifi ed service personnel when:
– Liquids have spilled inside the product.
– The product has fallen and been damaged.
– The product does not appear to operate normally or exhibits a marked change in performance.
• Do not operate on the product, it has no user-serviceable parts inside.
• Refer servicing to an authorized maintenance centre.
CE CONFORMITY
• Proel products comply with directive 89/336/EEC (EMC) and following modifi cations 92/31/EEC and 93/68/EEC, as stated in EN 55103-1 and EN 55103-2
standards and with directive 73/23/EEC (LVD) and following modifi cations 93/68/EEC, as stated in EN 60065 standard.
PACKAGING, SHIPPING AND COMPLAINT
• This unit package has been submitted to ISTA 1A integrity tests. We suggest you control the unit conditions immediately after unpacking it.
• If any damage is found, immediately advise the dealer. Keep all unit packaging parts to allow inspection.
• Proel is not responsible for any damage that occurs during shipment.
• Products are sold “delivered ex warehouse” and shipment is at charge and risk of the buyer.
• Possible damages to unit should be immediately notifi ed to forwarder. Each complaint for manumitted package should be done within eight days from
product receipt.
WARRANTY AND PRODUCTS RETURN
• Proel products have operating warranty and comply their specifi cations, as stated by manufacturer.
• Proel warrants all materials, workmanship and proper operation of this product for a period of two years from the original date of purchase. If any defects
are found in the materials or workmanship or if the product fails to function properly during the applicable warranty period, the owner should inform about
these defects the dealer or the distributor, providing receipt or invoice of date of purchase and defect detailed description. This warranty does not extend to
damage resulting from improper installation, misuse, neglect or abuse. Proel S.p.A. will verify damage on returned units, and when the unit has been properly
used and warranty is still valid, then the unit will be replaced or repaired. Proel S.p.A. is not responsible for any "direct damage" or "indirect damage" caused
by product defectiveness.
MAINTENANCE AND DISCLAIMER
• Clean only with dry cloth.
• Proel products have been expressly designed for audio application, with signals in audio range (20Hz to 20kHz). Proel has no liability for damages caused
in case of lack of maintenance, modifi cations, improper use or improper installation non-applying safety instructions.
• Proel S.p.A. reserves the right to change these specifi cations at any time without notice.
• Proel S.p.A. declines any liability for damages to objects or persons caused by lacks of maintenance, improper use, installation not performed with safety
precautions and at the state of the art.
CODE: 96MAN0008-ENG