GA4
4-channel SQ Class-D amplifier
The new high-end sound quality GA series in the premium class: state-of-the-art advanced Class-D circuitry for maximum power and best sound performance! Extremely low distortion values of less than 0.003% (ultra low THD+N), up to 1280 watts RMS, and full control thanks to high damping factor and superior filter flexibility. High-quality 24K gold-plated RCA sockets already hint at the inner values: multilayer circuit boards equipped with high-quality components, highly efficient individual controller MOSFET Class-D circuitry per channel. For a full, mature and powerful sound with sensational dynamics and impulse control. High-quality die-cast aluminum housing with removable top cover, stackable. Removable connection plug, integrated adjustment tool, and much more.
Product features
High-quality 4-channel Advanced Class-D sound quality amplifier with 4 x 220 W RMS at 4 ohms, 4 x 310 W RMS at 2 ohms, and 2 x 640 W RMS at 4 ohms bridged. Adjustable high-pass filter 15–6000 Hz / 12 dB, low-pass filter 30–6000 Hz / 12 dB, subsonic filter at 25 Hz / 12 dB with HPF switchable to 24 dB, Auto-Sense On function (DC/SIG), adjustable high-level input signal voltage per channel pair: 1–15 V & 15–40 V, and adjustable input impedance 10/150/600 Ω. Adjustable input sensitivity 0.45 V - 6 V (GAIN), signal-to-noise ratio 102 dB, damping factor @ 4 Ω >100, ultra-low THD+N 0.003% @5W 1kHz, crosstalk -76 dB, start-stop capable, high- and low-level inputs, removable connectors for power and audio signal, variable mounting feet and hidden mounting option, stacking function for multiple identical amplifiers (GA 4, MA 6 & MA 1), high-quality die-cast aluminum housing with removable and rotatable top plate, LED status light bar, 24 K gold-plated RCA/cinch sockets, integrated adjustment tool, compact installation dimensions 270 x 160 x 51 mm (LxWxH). Engineered in Germany.
