6ULTRA-DI PRO DI800 User Manual

1.Introduction

Be it on-stage or in the studio, musicians often look for ways to connect certain signal sources directly to the mixing console. Even though this approach has obvious advantages, there are still some technical hurdles obstructing its implementation. For example, keyboards seldom feature balanced outputs, and guitars can not be directly connected to mixing consoles because of the high impedance of guitar signals.

ADI-box lets you directly tap into a high-impedance, unbalanced signal—for example, the signal between a guitar and a guitar amp. From there on, you can feed the signal directly to a mixing console.

There are active and passive DI-boxes. A passive DI-box is more affordable, but its performance is highly dependent on the impedance of the equipment to which it is connected. When the impedance on the mixing console’s end changes, so does the impedance at the DI-box’s input. A passive DI-box only functions correctly when the impedance of the connected equipment is exactly specified (high at the input, low at the output).

On the other hand, active DI-boxes, such as the DI800, are not bound by these limitations, since the signal located at the input is “buffered” by an amplifier. The input impedance of the DI800 is extremely high. It does not influence the sound source and has absolutely no effect on the signal flow though the DI-box. The output impedance is balanced and is very low, and the signal is far less susceptible to picking

up noise. The ULTRA-DI PRO always transmits signals optimally, independent of the impedance of the connected equipment.

In addition to being powered by a mains connection, the ULTRA-DI PRO DI800 can also run on phantom power provided by your mixing console.

◊To avoid damaging your loudspeakers, always first connect the DI-box and only then open up the respective channel strip.

1.1 Before you get started 1.1.1 Shipment

Your ULTRA-DI PRO was carefully packed at the assembly plant to assure secure transport. Should the condition of the cardboard box suggest that damage may have taken place, please inspect the unit immediately and look for physical indications of damage.

◊Damaged units should NEVER be sent directly to us. Please inform the dealer from whom you acquired the unit immediately as well as the transportation company from which you took delivery of the unit. Otherwise, all claims for replacement/repair may be rendered invalid.

◊To assure optimal protection of your ULTRA-DI PRO during use or transport, we recommend utilizing a carrying case.

◊Please always use the original packaging to avoid damage due to storage or shipping.

◊Never let unsupervised children play with the ULTRA-DI PRO or with its packaging.

◊Please dispose of all packaging materials in an environmentally-friendly fashion.

1.1.2 Initial operation

Please make sure the unit is provided with sufficient ventilation, and never place the ULTRA-DI PRO on top of an amplifier or in the vicinity of a heater to avoid the risk of overheating.

◊Before plugging the unit into a power socket, please make sure you have selected the correct voltage:

The fuse compartment near the power plug socket contains three triangular markings. Two of these triangles are opposite one another. The voltage indicated adjacent to these markings is the voltage to which your unit has been set up, and can be altered by rotating the fuse compartment by 180°. ATTENTION: This does not apply to export models that were for example manufactured only for use with 120 V!

◊If you alter the unit’s voltage, you must change the fuse accordingly. The correct value of the fuse needed can be found in the chapter “Specifications”.

◊Faulty fuses must be replaced with fuses of appropriate rating without exception! The correct value of the fuses needed can be found in the chapter “Specifications”.

Power is delivered via the cable enclosed with the unit. All required safety precautions have been adhered to.

◊Please make sure that the unit is grounded at all times. For your own protection, you should never tamper with the grounding of the cable or the unit itself. The unit shall always be connected to a mains socket outlet with a protective earthing connection.

1.1.3 Warranty

Please take a few minutes and send us the completely filled out warranty card within 14 days of the date of purchase. You may also register online at behringer.com. The serial number needed for the registration is located at the top of the unit. Failure to register your product may void future warranty claims.

1.1.4 Online registration

Please register your new BEHRINGER equipment right after your purchase by visiting http://behringer.com and read the terms and conditions of our warranty carefully.

Should your BEHRINGER product malfunction, it is our intention to have it repaired as quickly as possible. To arrange for warranty service, please contact the BEHRINGER retailer from whom the equipment was purchased. Should your BEHRINGER dealer not be located in your vicinity, you may directly contact one of our subsidiaries. Corresponding contact information is included in