Tru Technologies Tungsten Grande Class AB 4 Channel Amplifier
Premium 4-Channel Class AB Amplifier - Old School Looks with Old School Slam
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Brand: Tru Technology
Availability: ✅ In Stock
Competition Grade Products
TRU amplifiers and line amps come from the sound-quality competition scene. They deliver wide bandwidth, low noise, and clean power judges reward. The same gear appears in finalist and championship builds.
Made in the USA
Hand-built in California in small batches. Assembly and testing happen in-house for consistent results. Every unit ships with factory serials and documentation.
Free Shipping
We provide free, insured shipping on TRU orders within the continental USA. Per TRU policy, we confirm each order by phone or email before shipment. You receive tracking the day your amp ships.
Expert Advice / Support
Speak with an installer who knows TRU gain structure, line amps, and DSP integration. We help with power matching, wiring, and heat management. If you choose an authorized install, we guide you on warranty steps and proof of purchase.
Overview
The Pinnacle of American Car Audio Engineering
New for 2025, the Tru Technology Tungsten Grande TG-RS4 HV v2.5 represents the ultimate evolution of the renowned Tungsten series, delivering uncompromising sound quality in a meticulously crafted 4-channel Class AB amplifier. Individually hand-built in La Crescenta, California, this amplifier embodies the perfect marriage of old school aesthetics with cutting-edge audio engineering, offering enthusiasts the legendary "slam" that has made Tru Technology a revered name among audiophiles worldwide.
Engineering Excellence Without Compromise
Built upon the foundation of Tru Technology's acclaimed BILLET and STEEL series heritage, the TG-RS4 HV v2.5 incorporates years of research and development to achieve a perfect balance of power, refinement, and cost-effectiveness. The amplifier features a calculated sequence of SMD and through-hole components, optimized for maximum performance while maintaining the company's unwavering commitment to sound quality. Every connection is strategically positioned along one side of the amplifier for ultra-clean installations and effortless adjustments.
Precision Craftsmanship and Thermal Management
The TG-RS4 HV v2.5 showcases a thermally optimized multi-piece heatsink design that combines sleek classic lines with superior heat dissipation. Constructed from locally sourced extruded aluminum—not overseas die-cast materials—each heatsink undergoes black anodization and precision CNC machining for an impeccable fit and finish. The 4-layer circuit board design enhances signal paths to deliver immense detail with incredible dynamics, while the Class AB topology ensures no thermal rollback, maintaining consistent power delivery even under demanding conditions.
The Tungsten Grande Advantage
As the "big brother" of the standard Tungsten amplifier, the Grande series delivers enhanced power, greater dynamics, and a higher level of refinement that satisfies the most discerning audiophiles. With its compact design philosophy, the TG-RS4 HV v2.5 excels in challenging installation scenarios without sacrificing the meticulous sound quality and reliability that define Tru Technology's reputation. This amplifier creates a new standard for both novice and experienced enthusiasts, offering world-class fidelity, amazing sonic transparency, and dynamic power that transforms any audio system into an extraordinary listening experience.
Specifications
Specifications
Features:
Owners Manual
Reviews
Related Video
Product Demo Video
All About Tru Technologies
TRU Technology builds high-end car audio amplifiers and line amps for sound-quality fans. The brand comes from the competition scene. The goal is simple: clean power, wide bandwidth, and a silent noise floor.
Heritage and build
TRU makes products in small batches in California. Skilled builders assemble and test each unit. This control improves consistency and long-term reliability.
Product families
- Billet v2: Class-A/AB reference amplifiers for front stage duty. They focus on low distortion, linear gain, and detail at low listening levels.
- Tungsten & Tungsten Grande: Class-AB power with SQ voicing. These models suit active two-way and three-way systems where headroom and tone matter.
- Line Amps (LINE-2CA, LINE-6 v2, LINE-8 v2): Front-end signal amps that lower noise, stabilize gain, and improve dynamic range before the main amps.
Why competitors use TRU
TRU gear stays quiet between notes. It holds frequency response flat across the band. It keeps output stable during long listening sessions. Installers trust it for judging lanes because results are repeatable.
System use cases
Use Billet v2 for tweeters and midrange where micro-detail matters. Use Tungsten or Tungsten Grande for midbass or full-range channels that need strong current. Add a TRU line amp when your DSP or source needs cleaner gain structure.
Buying and support
TRU protects customers with an authorized-dealer process. Some models require a phone or email consultation before purchase. If you choose an authorized install, the brand may offer extended warranty coverage per its terms. Audio Intensity provides free, insured shipping in the continental USA, order confirmation, and tracking. Our team can assist with gain staging, wiring, and heat management so your system performs as designed.
Frequently Asked Questions
What makes the TG-RS4 HV v2.5 different from the standard Tungsten series?
How does the "no thermal rollback" feature benefit performance?
What installation considerations are important for the TG-RS4 HV?
What type of speakers work best with this amplifier?
How does Tru Technology ensure consistent quality in manufacturing?
How does the 4-layer PCB design improve audio quality?
What makes Tru Technology amplifiers suitable for sound quality competitions?
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