Engineered in Colorado, USA
UNCOMPROMISED
POWER.
The original pioneer of Voltage Stepup Stabilizer technology since 2008. Competition-grade power supplies designed for pure current, optimal voltage, and uncompromised sound quality.
The Original VSS
Pioneering Power
Since 2008
Engineered by Harrison Labs in Colorado, USA, the VSS (Voltage Stepup Stabilizer)defined a new category in car audio competition. While others have attempted to follow, the real VSS remains the benchmark for pure, constant current.
Designed to eliminate interference and ensure optimal voltage, our power supplies are the secret behind world-class sound quality in high-end systems globally.
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The Archive
Technical Journal

Celebrating Excellence: OTOPRO – Master Tune Team’s Triumph at EMMA Vietnam 2025
We proudly congratulate our Vietnam dealer, OTOPRO – Master Tune Team, for their outstanding achievements at EMMA Vietnam 2025. Their remarkable results not only demonstrate technical excellence in car audio competition, but also reflect the trust they place in Harrison Labs products across all their competition vehicles.
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Driving Innovation Together: Concerto’s Commitment to Harrison Labs
One week has passed since the Concerto Audio Indonesia Gathering 2025 in Nusa Dua, Bali, yet the experience remains deeply etched in memory. More than a celebration of achievements, the gathering reflected Concerto’s core values—hard work, humility, and genuine support for others. Through strong leadership, meaningful partnerships, and a shared spirit of togetherness, Concerto continues to build not only success, but lasting relationships, including its commitment to supporting Harrison Labs.
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Harrison Labs X Portal-AudioShop
Portal-AudioShop Indonesia is the distribution center of Harrison Labs for outside continental USA.
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