Next-level responsiveness

Helix Stadium is best experienced hands-on. Because what makes Helix Stadium exceptional is not only the extraordinary sound of Agoura amplifier models, it’s how they respond to your playing—something you can only experience firsthand. Of course, your playback system is also crucial, so to get the full experience, you’ll want to pair Helix Stadium with a high-quality amplification system. In the meantime, bearing the above in mind, listen to the sound samples provided here to get an idea of what’s in store, and also dive deeper into Agoura modeling.

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Discover Agoura

Agoura modeling

Agoura modeling establishes a new benchmark for authentic sound when modeling physical amplifiers—from tube and transformer behavior to dynamic interaction with speakers and cabs—while also greatly increasing the accuracy of how amps respond to your playing.

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Inter-block communication

Output transformers interact with speakers and the cabinet in which they are installed. Agoura modeling measures cabinet impedance to accurately voice power amps for specific amp and cab combinations.

Interstage impedance

Agoura modeling measures the output impedance of every gain stage in the circuit. Precisely calculating the impedance between gain stages results in more accurate tonal characteristics and enhanced playing feel.

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Double-precision tone stacks

Double-precision tone stacks provide a more precise way to calculate the frequency response in complex circuits such as guitar amplifier tone stacks, contributing to more realistic responsiveness and feel.

Improved sag and ripple emulation

The Agoura process combines power amp and power supply modeling when calculating sag and ripple, resulting in more realistic behavior. Both Sag and Ripple are adjustable parameters within each amp.

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Enhaced tube emulation

Agoura tube modeling captures data about current flow at various plate and grid voltages by measuring actual tubes, more accurately calculating tube performance in specific guitar amp circuits.

Power stage modeling

The component values of both the power amp and the power supply are configured within the same DSP block in Agoura, resulting in increased responsiveness to playing dynamics.