BSS Audio AR-133 Manual

BSS Audio Ikke kategoriseret AR-133

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Technical Specifications

Inputs: 1/4” mono jack connector (Tip hot, sleeve ground) or 3-pin XLR

connector (pin 2 hot), unbalanced.

Parallel link output 1/4" jack connector for feeding to other equipment,

direct or via Buffer Amplifier.

Attenuator at 0dB: at 20dB: at 40dB:

Impedance : 1 Mohm 47 kOhm 47 kOhm

Max Input Level before clip +9dBu +29dBu +49dBu

Output: 3-pin XLR connector, transformer balanced output. Will drive lines

from 600 Ohm upwards. Maximum output level before clip greater

than +9dBu with battery or phantom supply.

Frequency Response: 30Hz to 20kHz , +0/-1dB

Noise: < -105dBu, unweighted, 22Hz to 22kHz, rms*

Harmonic Distortion: Less than 0.005% at 1kHz, 0dBu output.

Power:

Phantom Power Requirements: +20 Volts DC to +48Volts DC

Current Drain: Phantom Power, less than 8mA. Battery, less than 2mA

Dimensions: 145mm x 125mm x 59mm (5.7 " x 4.9" x 2.3")

Weight: 650gm (22oz) excluding battery.

* Noise measured relative to maximum output

Warranty Information

When sold to an end user by BSS Audio or a BSS Audio Authorised Reseller, this unit is warranted by the seller to the

purchaser against defects in workmanship and the materials used in its manufacture for a period of one year from the date

of sale. Faults arising from misuse, unauthorised modifications or accidents are not covered under this warranty. No other

warranty is expressed or implied. If the unit is faulty it should be sent to the seller of the equipment, in its original

packaging with shipping prepaid. The unit will be returned to you when the repair has been completed. You should

include a statement listing the faults found. The unit’s serial number must be quoted in all correspondence relating to a

claim. We recommend that you record your purchase information for future reference.

In keeping with our policy of continued improvement, BSS Audio reserves the right to alter

specifications without prior notice. The AR-133 was designed and developed by BSS Audio,

Hertfordshire, England.

Using a DI box eliminates the need for miking of the backline speakers, providing a clean

feed to both console and amplication. The AR-133 has a parallel feed from the input

connector so that the instrument may be simultaneously connected to the AR-133 and the

amplier. This means that no special splitter cables are needed.

The striking visual design of the AR-133 also has functional qualities. For example, cables

can be run underneath to keep cable runs neat on stage, and all from one end of the unit.

The moulded sides make stacking of multiple units easier, and help isolate the case of the

AR-133 from the stage both electrically and mechanically.

Input Connectors and switches

Input 1/4" Jack:

Unbalanced, Tip hot (+ve), sleeve ground;

Main input for instruments

Impedance (Pad setting)

1MOhm (0dB)

47kOhm (20dB)

47kOhm (40dB)

3 - pin XLR Socket:

Unbalanced, parallel link with main 1/4" jack socket. Pin 2 hot, Pins 1 and 3 ground.

Link 1/4" Jack:

Output, parallel wired with main 1/4" input, or fed via a buffer amplifier from main input.

Tip hot, Sleeve ground.

Output Connector and switches

3-pin XLR Output:

Balanced (via transformer)

Pin 2 Hot (+ve)

Pin 3 Cold (-ve)

Pin 1 Ground

Ground Lift Switch:

By switching to the LIFT position, the

internal connection to the output pin 1 is

removed, isolating the AR-133’s grounding system from that of the rest of the system.

ARAR

AR--

-133133

133133

133

BSS Audio

User Manual Active DI Box / Line Balancer

Part Number ZM0199-01 Issue 1

BSS Audio, Linkside House, Summit Road, Potters Bar, Herts EN6 3JB England

Tel +44 (0)1707 660667 Fax +44 (0)1707 660755 World Wide Web: http://www.bss.co.uk

Functions and Facilities

The Link Connector

Normally, the 1/4" LINK socket carries a parallel-wired direct feed from the input. Optionally,

an internal link passes this signal through an active isolating buffer amplifier. This link must

be changed by an Authorised Technician only. Please consult your Distributor/Dealer for

details.

The On/Off Switch

The On/Off switch is used for both phantom power and battery. To avoid battery drain when

the unit is not in use, ensure that this switch is set to the upper OFF position when storing or

packing the AR-133. Optionally, an internal link can allow phantom power to activate the

AR-133 regardless of the On/O switch setting. This link must be changed by an Authorised

Technician only. Please refer to your Dealer/Distributor for details.

Phantom Power

The AR-133 can work reliably on a wide range of phantom power voltages, although of

course the typical supply provided by modern consoles is +48 volts. The AR-133 accepts

supply voltages of +48 volts down to +20 volts without loss in performance.

While the AR-133 is receiving good phantom power, the power LED is lit continuously.

Should the supply fail for any reason, the AR-133 will switch over automatically to run from

the internal battery (as long as one is fitted!). Under these conditions, the power LED flashes

approximately every 2 seconds.

Installing a battery

To install or replace the internal battery, first undo the knurled screw on the battery compart-

ment - DO NOT undo the ush panel screws. The battery cover should now fold back

towards the edge of the unit, revealing the compartment. Attach the flying lead battery

terminals to your battery, and slide the battery into the compartment, with the connector

towards the outside of the AR-133. For best reliability and long life, we recommend you use

only high quality alkaline batteries in your AR-133.

Cable Management

To keep cables tidy on stage and in the studio, both input and output cables can be arranged

to run in the same direction by bringing one cable back under the AR-133.

The most widespread use of DI boxes is with guitar

pick-ups or keyboards. The optimal setting for this is most

likely with the pad switch set to 0dB, although with some

high-output pick-ups the performance of the AR-133 may

be improved if the pad switch is set to 20dB to prevent

possible clipping of the input. The instrument is

connected to the 1/4” jack socket, and a parallel feed taken

from the other jack socket to the instruments' own

amplifier.

Where 2 or 3 keyboards are used by a

single performer, it is possible to reduce the

number of DI’s needed if a mixer/amplifier

is used by the performer for his or her

personal monitoring. A single AR-133 can

be fed either from a line-level output from

the head (pad set to 20dB) or from the

amplifier power output (speaker output)

(pad set to 40dB).

Using the amplifier's output means that the

signal being fed to the console is post any

effects units and the power stage of the

amplifier, and so will be more

representative of the signal being fed to the

speaker, including any deliberately

introduced overdrive etc. Use the 40dB

setting for this application.

Interfacing additional equipment such as DJ

mixers with the house console and PA may

cause level and connector difficulties. Connect

the DJ mixer to either the jack or XLR input of

the AR-133 (this will depend on the interface

cables to hand which match the output of the DJ

mixer) and then the AR-133's output XLR to the

house console.

Typical Applications

Produkt Specifikationer

Mærke:	BSS Audio
Kategori:	Ikke kategoriseret
Model:	AR-133

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