Amplifiers with a small footprint and big impact. GTR mono and full-range, multi-channel amplifiers deliver the efficiency and power you expect from Class D amps—and the performance you expect from JBL. Each model in the lineup will accept both high-level or low-level inputs, allowing the JBL Stadium amplifiers to be added to virtually any car audio system, including factory installed systems. The 2-, 4- and 5-channel amplifiers offer Bluetooth® audio streaming, exclusive Clari-Fi™ music restoration technology that analyzes and improves the audio quality of compressed files in real time, a multi-pairing Party Mode that lets anyone in the car stream music, and a cabin-mounted control panel. GTR amplifiers give you the power to shape your car audio experience in new ways.
Class D amplification
Every GTR amplifier, including the full-range models, is a Class D. These high-effi ciency, low-heat amps generate a lot of power without drawing much current, and feature small footprints.
GTR amplifiers incorporate a mini-USB port that enables you to easily upgrade firmware.
Four-channel, priority inputs on the full-range GTR amplifiers override the playing source when a signal is detected from Advanced Driver Assistance Systems.