Behringer Ultra-DI Pro DI800 User Manual

ULTRA-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.
A DI-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 the

original equipment packaging (Global Contact Information/European Contact

Information). Should your country not be listed, please contact the distributor

nearest you. A list of distributors can be found in the support area of our website

(http://behringer.com).
Registering your purchase and equipment with us helps us process your repair

claims more quickly and efficiently.

Thank you for your cooperation!