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.
Description
More Details
ARCHITECT'S AND ENGINEER'S SPECIFICATION
AR-133 Active DI Box / Line Balancer
The Active Direct Inject box shall provide a transformer balanced and isolated feed from a source input via a 1/4" TRS jack or 3-pin XLR-type connector. The output of the DI box shall be via an XLR connector. The unit shall also provide a 1/4" TRS jack in parallel with the input to act as a link for line bridging. The link shall be a direct feed from the input, or shall optionally be fed from an actively buffered input signal.
The unit shall be powered either via a phantom power source, or via a standard PP3 type 9 volt battery. An led shall illuminate continuously to show power is provided by a phantom source, or flash approximately every 2 seconds if powered by the battery.
Switches shall be provided for: EARTH LIFT (output pin 1 disconnected from unit ground), INPUT ATTENUATION (of 0, 20 or 40dB), and Power On/Off.
The unit shall be housed in an aluminium extrusion fitted with isolating side-cheeks. The unit shall be sufficiently screened so it is not susceptible to external magnetic fields.
The Active DI box shall be the BSS Audio AR-133.
Specifications
| Input Impedance | 1 MOhm (pad at 0dB), 47 kOhm (pad at -20dB or -40dB) |
| Max Input | +9dBu (pad at 0dB), +29dBu (pad at -20dB), +49dBu (pad at -40dB) |
| Input Connectors | Two Parallel 1/4" jack connectors (Tip Hot +ve, Sleeve ground), and a parallel XLR connector (unbalanced) (Pin 2 Hot +ve, Pin 1 & 3 ground) |
| Output | Transformer Balanced |
| Max Output | +8dBu into 600 Ohms or greater |
| Output Connectors | XLR3-32 or equivalent |
| THD | < 0.005% at 1khz, 0dbu output |
| Noise | < -105db unweighted, 22hz-22khz, rms* |
| Frequency Response | 30Hz to 20kHz, +0dB/-1dB |
| Main/Standby battery | 9 volt PP3 type, preferably alkaline |
| Power Consumption | on phantom: less than 7.5mA, on battery: less than 2mA. |
| Phantom Power | +20 volts DC to +48 volts DC |
| Unit Weight | 650 gms, excluding batteries |
| Dimensions | 59 mm x 124 mm x 143 mm (2.3" x 4.9" x 5.6") |
Refund Policy
We have a 7-day return policy, which means you have 7 days after receiving your item to request a return.
To be eligible for a return, AVTELCOM has the right to accept or deny return requests, especially for the following reasons:
a.) The customer changed his/her mind, or the customer does not need the item anymore.
b.) The customer already used the item, and it shows signs of wear.
AVTELCOM has the right to charge the shipping cost to the customer, plus a restocking fee.
To start a return, you can contact us at customercare@avtelcom.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at customercare@avtelcom.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at customercare@avtelcom.com.