Heartsound Studio

Heartsound Studio is your car-audio bass lab: 808 Trap bass tests, ultra-low frequency sweeps, SPL demo tracks, rattle checks, and perfect loops for fast, accurate tuning. Every track focuses on clean sub energy in the 20–80 Hz range to help you dial crossover, gain, phase, and enclosure response.

What you’ll find

808 Trap bass test drops (4-bar build → 16-bar perfect loop)

Ultra-low sweeps (20–45 Hz), mid-low tests (30–60 Hz), tone ladders & step tests

SPL/demo bangers for car meets + safe break-in loops for new subs

Mixes optimized for mono bass below 120 Hz with gentle harmonics for small speakers

Safety: Start at low volume and increase slowly to protect your gear.

Creation note: Audio and visuals are created with AI and then refined by human editing, arrangement, mixing, and mastering so everything looks natural and sounds enjoyable across systems.

Subscribe for regular uploads and share your SPL results!