For decades, car audio enthusiasts faced a difficult choice: buy a massive Class AB amplifier for sound quality or a tiny Class D amplifier for convenience. The
TRU Technology Tungsten Series shatters this compromise. Hand-crafted in La Crescenta, California, these amplifiers pack the soul of a high-end studio reference amp into a footprint that fits under most seats. By utilizing a high-density circuit layout and a custom-machined aluminum chassis, TRU Technology delivers the legendary "Old School" warmth and dynamic pop without the refrigerator-sized footprint.
The "Compact" Class AB Advantage
The standard Tungsten models (T2 and T4) feature a chassis measuring just 11" x 9". Despite this small size, they refuse to switch to digital switching power supplies for the audio signal. They remain 100% Class AB, utilizing high-speed Op-Amps and bipolar output devices to produce a sound that is rich, textured, and harmonically accurate. This is the perfect series for the audiophile who wants to keep their trunk usable but refuses to settle for the "sterile" sound of mass-market digital amps.
Choosing Your Configuration: T2 vs. T4
The Tungsten T4 is the versatile workhouse, delivering 100W x 4 (at 4Ω). It is ideal for running an active 2-way front stage (tweeters and mid-bass) or a front/rear setup with incredible clarity. The Tungsten T2 is the powerhouse 2-channel, often rated at 125W+ x 2. It shines when driving high-end passive component sets or heavy mid-bass drivers that need extra current to come alive.
The Subwoofer Solution: Enter the Grande
Because physics dictates that high-power Class AB bass amplifiers require massive heat dissipation, there is no "small" Tungsten monoblock. Instead, the series is designed to pair perfectly with the Tungsten Grande Monoblock. While physically larger (approx. 15.5" long), the Grande Monoblock shares the exact same aesthetic and sonic signature, providing the 700W+ of authority needed to anchor the pristine sound of your T2 or T4 front stage.
Installation and Thermal Awareness
Do not let the small size fool you—these are high-bias amplifiers. The T2 and T4 generate heat just like their big brothers. Because they have less surface area to dissipate that heat, active cooling (fans) or excellent ventilation is mandatory. Never mount a Tungsten series amp upside down or inside a sealed cavity.
