Otto Audio II II II II — Free Download

Purpose

II II II II is a virtual guitar amplifier designed for heavy music and brutal tones. It is a high-gain specialist that emphasizes unique distortion textures, detailed saturation, and complex harmonics. The amp is built to support down-tuned and extended-range guitars, including six to nine string instruments, but can make any tuning sound heavier.

The amp is not a clone of any existing model; it offers original circuit design with cascading gain stages. It includes multiple tonal structures and impedance curves, allowing for a wide range of heavy sounds. This focus makes it a tool for guitarists seeking originality and extreme tonal character, rather than emulating specific classic amps.

Key Capabilities

The amp features selectable power tubes, including EL34, 6L6, and KT88, along with dynamic 12AX7 triode modeling in preamp and phase inverter stages. It includes thirteen tonal structures, nine impedance curves, and twenty-two dimensional impulse responses. Control over bias, sag, feedback, and resonance allows deep power amp fine-tuning.

A standout feature is the WIIIDTH effect, which simulates a double-tracked dual-stack wall of sound. It is primarily for riffing, but can be used in mono or stereo depending on the mix. The amp also offers an overdrive section with a tight response and low-end boost options, plus output circuit modes for additional tonal flavor.

Workflow and Use

II II II II integrates into a recording or live setup. Use it with a laptop, USB interface, and clean power amp for live cabs, or route directly into the PA using the built-in IRs. For studio use, place it in an FX loop or as a direct insert. You can bypass the built-in IRs to use your own, which may enhance third-party impulses.

The amp includes amp match presets, which are tuned-by-ear approximations of known high-gain amps, serving as starting points for your own tones. With tens of thousands of permutations, you are encouraged to explore and create a signature sound. The interface is designed for tweakers, granting access to advanced power amp and impedance settings.

Practical Applications

This amp excels in metal and hard rock genres, particularly for rhythm and lead guitar tracks that require extreme gain and clarity. It is ideal for modern production where a massive, layered guitar sound is needed. The WIIIDTH effect can help you hear how a part will fit in a mix, simulating a finished record.

The extensive tone-shaping controls suit session players and producers who need to match specific sonic requirements. The built-in IRs are album-ready, making it a practical tool for songwriting and demoing. For live performance, the direct-to-PA option offers consistency without the need for physical cabinets.

Key features

• Selectable power tubes: EL34, 6L6, KT88
• Thirteen tonal structures
• Twenty-two dimensional IRs
• WIIIDTH double-tracking effect
• Bias, sag, feedback, and snarl controls
• Nine impedance curves
• Overdrive with tight and low-end boost modes

Best for

Guitarists and producers working in heavy metal, djent, deathcore, and other extreme genres who need a versatile high-gain amp sim with deep tweakability. It is also great for crafting signature heavy tones and for live use with a clean power amp or direct to PA, offering a realistic tube feel and a massive, punishing sound.