ProD2™ Using & Applications

This short guide is written for those who are experienced with pro-audio and direct boxes. Complete details about the many features built into the ProD2 and information about connecting it to your system can be found in the manual (PDF download).

The best feature of the ProD2 is its 'plug & play' ease of use. All you do is connect the instrument to the ¼” inputs, the ¼” through jacks to the stage amplifiers or local mixer and the XLR outputs to the mixing console and you are done. Any distortion? Hit the -10dB pad. Any noise? Just depress the ground lift switch.


Stereo Connection

Radial ProD2 Stereo Connection
Connection for stereo keyboard.
The THRU jack drives a local keyboard mixer.
Click to view larger image.

Dual Mono Connection

Radial ProD2 Dual Mono Connection
Connection for two mono instruments.
The bass uses the THRU jack to drive the amp.
Click to view larger image.

You will find that with acoustic guitars and basses, the natural tone of the instrument will shine through with a smooth and musical rendering. For electrically powered devices such as keyboards, the ProD2 will immediately eliminate troublesome ground loops while delivering solid dynamics with a full rich sound.

Using the -15dB PAD

Sometimes the output level of active pickups and devices like keyboards can be too hot for audio devices down stream in the signal chain. To prevent distortion the PAD switch introduces a
-15dB attenuation at the instrument input.

The ProD2 features two PAD switches, one for each channel. When using the ProD2 in stereo both PADs should be set to the same position to keep the balance between channels. Separate PAD switches allow the ProD2 to be flexible when used as a dual mono direct box.

Start with the PAD switch in the outward position (disengaged) when doing your basic connection. If you detect distortion engage the PAD by pushing the switch inward. You may have to increase the gain at the console or preamp to compensate.

Using the ground lift

As mentioned, the ProDI features 100% transformer isolation to protect against hum and buzz caused by ground loops. If you hear hum or buzz set the lift switch to the inward position.

Setting the switch to the inward position will disconnect signal ground at pin-1 on the XLR connector and allow the transformer to act as a bridge between the input and output.


ProD2 with Stereo Keyboard

Radial ProD2 with a Stereo Keyboard

The ProD2 is designed for stereo devices like keyboards. Simple, straight ahead hookup makes it easy to connect your keys to your recording system for great stereo sound!


ProD2 with Drums & Samplers


Driving the output from a sampler or electronic drum machine to the PA system has never been easier. The ProD2 delivers plenty of headroom and lets you connect a local DJ mixer too.


ProD2 with Instruments

Radial ProD2 with Instruments

Two Radial ProDI direct boxes in one, multi instrumentalists rejoice! The ProD2 is perfectly well suited for bass, acoustic guitar or just about any instrument with a pickup.