Fishman Aura Spectrum DI Preamp

Key Features at a Glance

• Aura Acoustic Imaging technology
• 128 pre-loaded Images for restoring a miked sound to DI acoustic instruments
• Instrument preamp with balanced XLR DI output
• Volume, Blend, and Image Select controls
• 3-band EQ
• One-knob compressor
• Automatic anti-feedback with up to 3 notches
• Built-in chromatic tuner with bypass/mute
• 16 user-configurable Image locations via Select knob
• USB interface for image downloading from Aura Image Gallery (software included)
• Feedback-fighting Phase switch
• Automatic D.I. ground lift

Images Explained

Aura Acoustic Imaging Technology uses digital algorithms developed in Fishman's audio laboratories to impart a sound to acoustic instruments that models the characteristics of using a microphone to capture your instrument in the studio. This Image, when recorded direct or played through an amp, mixer or PA, blends with your instrument's pickup to produce a more realistic, less DI sound. Please note, these images do not work as well with soundboard-mounted pickups, bridge-plate pickups, multi-sensor pickups, or external microphones, as these processes can interfere with the Aura processing.

Types of Acoustic Guitars Modeled Herein

• Dreadnought
• Orchestra
• Concert
• Jumbo
• Nylon
• 12 string
• Bluegrass
• 16 rewriteable user images

3-Band EQ

The unit is supplied with a three-band EQ, effecting bass, midrange, and treble frequencies. As a default, the tone controls effect the sound of the pickup signal only, allowing you to further refine the sound of your instrument without excessive alterations to the chosen image. A Global EQ mode may also be selected, applying the same EQ settings to both the pickup and image path simultaneously.

Anti-Feedback Footswitch

In addition to the phase switch, this footswitch can help you control feedback during a performance. Aura Spectrum's automatic anti-feedback filter can apply up to three separate notch filters-precise tone controls that reduce only a small piece of the audio band. When activated, the filter determines where the offending resonances are and only attenuates those frequencies.

Onboard Tuner

This digital chromatic tuner operable via the footswitch accommodates all standard and alternate tunings. It's factory calibrated to A=440 Hz. Please note that pressing both the anti-feedback and tuner footswitches bypasses the unit completely.

Other Controls Explained

Volume: The volume control affects the overall output level coming from both the 1/4� and the XLR DI outputs. For the cleanest signal, set the volume as high as possible without clipping the next device in the signal chain. If you hear distortion and the clip/batt light is not flashing, reduce the volume.

Select knob and slider: The select knob allows you to choose among the 16 images available for each of the eight different image banks. Move the select slider to choose a bank of images that best match the style of instrument you�re playing, then select through the 16 images to find the ones that sound best. Try all 16 within each bank and adjust the blend knob to obtain more or less character.

Blend: This knob allows you to blend your direct signal with your selected image. Position the blend knob straight-up at 12 o�clock and you�ll hear a 50/50 mix of image and your pickup�s sound. Turn the blend all the way right for just image, and all the way left for just pickup. Most performers blend in some pickup with the image for clarity and definition.

Compressor: The compressor control adjusts several settings within an automatic leveling circuit. As you turn this knob clockwise, your overall playing dynamics become increasingly limited, making softer notes louder and controlling loud spikes in your playing. This can be helpful in performances where you desire a more even level to your playing. At its maximum setting, there may be some overall increase in the output level.