The ATG Audio ATG-TS1000.4 is a premium Transcend Series 4-channel Class A/B amplifier engineered for high-output full-range speaker systems and SQL-oriented builds. Designed to deliver clean power with flexible crossover tuning, the TS1000.4 combines traditional Class A/B sound quality, strong real-world output, and compact installation flexibility into one of ATG’s flagship full-range amplifiers. It’s especially popular for powering amplified front stages, component speakers, and bridgeable mids-and-highs systems. Main Features 4-channel Class A/B amplifier Transcend Series flagship design 4 x 125W RMS @ 4Ω 4 x 250W RMS @ 2Ω 2 x 250W bridged @ 4Ω Independent front/rear crossover controls HPF / LPF / Full selectable crossovers Variable high-pass and low-pass filters Selectable bass boost Marine-grade nickel-plated RCA connectors Compact chassis design High signal-to-noise ratio SQL-oriented tuning capability Specs Specification Details Amplifier Class Class A/B Channels 4 RMS Power @ 4Ω 125W x 4 RMS Power @ 2Ω 250W x 4 Bridged RMS Power 250W x 2 @ 4Ω Frequency Response 20Hz – 22kHz Signal-to-Noise Ratio 105 dB Damping Factor
