ADDAC Systems - 007W Resonator Guitar Clamp 45mm

The ADDAC007W Resonator Clamp offers a rather unusual way of turning a guitar into a physical audio processor. Attach it to the headstock, feed it audio from a synthesizer, drum machine or any other sound source, and the guitar strings begin to resonate with the incoming signal. Instead of electronically simulating a resonator, the ADDAC007W uses the actual strings of your instrument to produce the effect! This wider version fits guitar headstocks and other mounting surfaces up to 45 mm thick, giving you a bit more flexibility with where you attach it.

The system consists of a vibration transducer mounted on a clamp and a separate amplifier box that accepts modular or line-level audio. The transducer transfers vibrations through the instrument, exciting the strings and their natural harmonics, which can then be captured through the guitar's pickups. The result depends heavily on how the guitar is tuned: short sounds can produce clusters of decaying harmonics, while sustained signals develop into drones and complex, reverb-like soundscapes. You can even mute individual strings to change which frequencies are allowed to resonate.

There are some interesting possibilities for routing, too. You could send audio from your DAW through the guitar and record the result like an external effects processor — the guitar can simply sit on a stand while doing its work. Alternatively, feed the guitar's pickup signal back into the resonator to create a feedback system, with effects pedals or a mixer inserted along the way. These are just two of many possible setups. One thing is certain, it's an unusual approach to sound processing, but a lovely one!

Features:

• Physical string resonator and audio processor for guitars
• Wider clamp for guitar headstocks and other surfaces up to 45 mm thick
• Clamp-on vibration transducer with flexible mounting options
• Transfers incoming audio into the instrument, exciting its strings and natural harmonics
• Resonances and decay characteristics depend on string tuning
• Individual strings can be muted to shape the resonant response
• Supports external audio processing and acoustic feedback configurations
• Suitable for synthesizers, modular systems, DAWs and other audio sources
• Separate amplifier box with input level attenuator
• 3.5 mm mono audio input and 3.5 mm mono transducer output
• Accepts modular and line-level signals
• Protective felt pads on the clamp
• 9–12V DC, 3A power requirement
• 9V DC, 3A power supply included
• Standalone version of the ADDAC129 Resonator concept
• Also available as the standard ADDAC007 for guitar headstocks up to 20 mm thick