LR Baggs Voiceprint® DI Acoustic Guitar IR Pedal

L.R. Baggs

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Product Overview

Acoustic Guitar Impulse Respsonse Pedal


The product of nearly 3 years of intensive research and collaboration with a team of PhDs, LR Baggs is thrilled to introduce Voiceprint DI, the next breakthrough chapter in acoustic amplification. Voiceprint DI measures the acoustic response of your guitar by leveraging the processing power of your iPhone® to accurately capture your guitar’s one-of-a-kind voice. A Voiceprint is created, transforming your pickup into the most authentic sound we have engineered in our 40+ years.


  • Master Volume level control
  • Voice blends your instrument’s custom Voiceprint with your pickup signal for enhanced accuracy
  • Anti•fb applies your anti-feedback profile for effective feedback control. Short press for phase inversion
  • Select scrolls through up to 99 instrument presets
  • Pad attenuates input by 0dB, -3dB, -6dB, or -9dB to accommodate a wide-range of input levels
  • Mute footswitch for ¼" and XLR outs. Long press for bypass
  • Next footswitch selects the next instrument preset
  • Series FX loop (separate jacks for send and return)
  • Ground lift switch effectively eliminates ground-loop noise
  • ¼" input
  • XLR and ¼" outputs
  • 9V DC power
  • iPhone Version: iPhone 6 and later

Create a Voiceprint that captures the one-of-a-kind voice of your instrument with a few simple steps

Guided by our AcousticLive™ app and proprietary impulse response technology, you can now use your iPhone like a studio in your pocket to capture a Voiceprint of your acoustic guitar. Developed with Dr. Jonathan Abel, co-founder of Universal Audio, our Voiceprint technology utilizes a sophisticated algorithm that intuitively measures your acoustic guitar by analyzing its actual timbre and playing response, then creates a customized preset for live play, as well as for direct recordings. Simply plug into the pedal and set your iPhone into position; tap on the bridge, strum a few chords, pick some strings, and you’re done!

Deploy anti•fb feedback profiles and shape your tone with powerful EQ
As an added benefit, every Voiceprint that you create identifies your guitar’s specific resonances that are prone to feedback and creates an Anti•FB profile to easily manage feedback with one simple control on the pedal. The app also provides advanced features, such as a graphical full-parametric EQ for balancing each preset to your exact taste. These features can also be used for creating enhanced presets, even if you choose not to apply a Voiceprint.

Sync your iPhone to the Voiceprint DI and unlock all of these great features
The AcousticLive app provides the processing you need to create your presets, while the Voiceprint DI is your live performance engine. With advanced processing at 96 kHz sampling, the robust playback algorithms provide studio quality performance designed for easy control during your live show. You can manage your presets in the app and store up to 99 instruments in your Voiceprint DI. The hardware is designed with a simple layout that includes the key features you will need for a successful show, but you can connect with the app during your live performance for additional functionality and control.


1/4” INPUT

Input Impedance: 2.2 Megohms

Input Pad: 0dB, -3dB, -6dB, -9dB

Input Level: -25dBv to +6.24dBv (.053Vrms to 2.05Vrms)


Send Level: 0dBv (0.707Vrms)

Output Impedance: 600 Ohms

Return Level: 5.2dBv (1.414Vrms) Maximum before clipping

Input Impedance: 600 Kohms


Output Level: 0dBv (0.707Vrms) Balanced

Output Impedance: 600 Ohms


Output Level: 0dBv (0.707Vrms) Un-balanced

Output Impedance: 470 Ohms


DC Power Consumption: 4.5W Max @ 9V

Voltage Range: 9VDC – 16VDC

Power Supply: 9VDC with 500mA minimum (included)

*IMPORTANT: polarity Pos (+) on outside, Gnd (-) on center

Signal to Noise: 90dB, unweighted


A/D and D/A Conversion: 24-bit, 96kHz

DSP: 32-bit floating point DSP processing

Bluetooth Version: V4.2 up to 5.0

iPhone Version: iPhone 6 and later


1.25 lbs, 5” Width x 4.75” Depth x 2.5” Height

These specifications may change without notice.

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