THE LATEST JBL® GRAND TOURING® SERIES AMPLIFIER LINE includes dedicated Class D subwoofer amplifiers and full-range amplifiers that have been engineered to deliver low distortion and optimum system tuning ability. The line consists of three subwoofer amps, three full-range amps and a five-channel amp designed to drive an entire system.
Each model includes a 12dB-per-octave variable electronic crossover, with the subwoofer amplifiers offering the JBL Dynamic Bass Optimization Circuit and an included remote bass-level control that allows the bass output to be independently adjusted.
In addition, all models except the GTO5355 feature full-range preamp outputs to facilitate easy system- building and wiring architecture.
DYNAMIC BASS OPTIMIZATION CIRCUIT (DBO)
This provides variable high-pass filtering with adjustable “Q” below 100Hz (far beyond conventional bass circuits) by allowing the low-frequency output to be optimized for specific subwoofer applications. Frequencies below an enclosure’s tuned frequency can be attenuated, preventing damage to the subwoofer and allowing the amplifier’s power
to be better utilized.
DIRECT CONNECT
This feature allows the use of up to 4-gauge power and ground cable to ensure enough juice is being delivered. This feature is also used to make the speaker connection to the amplifier, eliminating the need for adapters or special fittings.
FULL-RANGE PREAMP OUTPUTS
In the event that multiple amplifiers are used in an application, this feature allows for streamlined system hookup – no high-loss Y-adapters or splitters are needed.
COMMON-DIMENSION AMPLIFIER FOOTPRINTS
By designing the GTO Series amplifiers with two common dimensions, the amount of space occupied in multiple-amplifier mounting applications can be optimized.
