Gjalla vs Helix Stadium Native

Gjalla is a free, open-source guitar amp simulator for black metal and other raw styles. Sognevo, a one-person project making dark-music audio plugins, provides it for Windows, macOS, and Linux as VST3, CLAP, and, on macOS, AU, plus a standalone application. The processing chain includes input trim, noise gate, pedal, preamp, tone stack, power section, presence, cabinet, frost, and output trim. Its pedal offers 90s distortion, HM-2-style chainsaw, and starved-transistor fuzz voicings. Three analytic cabinets are included; WAV or AIFF impulse responses up to two seconds can be loaded, or the cabinet can be disabled for an external loader. Six factory presets, meters, editable knob values, undo and redo, tooltips, and a resizable interface are provided. Host latency is reported as six samples, stated as 0.13 ms at 48 kHz. There is no packaged release yet, so users must build from source or follow GitHub releases. A build requires Git, CMake 3.22 or later, and a C++20 compiler. Gjalla is GPLv3-or-later and has no telemetry, network access, update checks, or accounts.

Helix Stadium Native is an amp and effects plugin that brings Helix Stadium hardware sounds and tone tools into a digital audio workstation. It runs on macOS and Windows in AAX, AU, and VST3 formats, and is not a standalone app. The product page lists 132 amplifier models with 152 channels, more than 260 effects models, and more than 60 speaker cabinet models. The full license lists 27 Agoura amps with 55 channels plus 111 HX amps, 46 cabinets, and 274 studio effects. Hype control blends between more authentic and idealized amp sounds, while Focus View provides contextual parameter controls. The plugin supports third-party cabinet impulse responses and Proxy clones, as well as presets and setlists from Helix Stadium and Helix Stadium XL and original Helix and HX products with firmware 3.50 or later. External MIDI controllers and software can control parameters and snapshots. A free Intro plan is available; the full license costs $399.99 as a one-time purchase purchase and includes a 15-day trial.