The unit includes phantom power and battery supplies as standard. Should the phantom power from the console fail or be accidentally switched off the AR-133 automatically switches over to the internal 9V battery providing uninterrupted use.
The unit is housed in a rugged aluminium extrusion case with robust polyurethane end-cheeks which give the AR-133 a very distinctive look.
Input connectors are both 1/4 jack sockets and an XLR socket the latter meaning that the AR-133 can be used to convert unbalanced signals to a balanced output on XLRs throughout.
The arched case allows cables to run back underneath the unit from the end for neat cable management.
Input attenuation is 0 -20 or -40dB making the box suitable for instrument line or amplifier levels on inputs. On the output side a ground-lift switch is provided for quick solutions to ground-loop problems.
The AR-133 uses an enhanced version of the same audio path as the AR-116 now regarded by many people as a reference standard. The sound quality is legendary particularly on acoustic and bass guitars.
Numerous applications can be satisfied by the AR-133. For example as well as the traditional guitar use the AR-133 can be used with keyboards DJ consoles amplifier outputs and other electronic sources.
An additional bonus is the ability to use the AR-133 as an active balancing device.