VERSATILE AND ULTRA-COMPACTThe FDS 4.350 is the 4-channel model (4 x 58 Watts RMS) and the most versatile of the range. It can operate in 4-, 3- or 2-channel mode. In most cases, it will be used to amplify a car’s front and rear speaker drivers. It can also be used to drive front speaker drivers and a small subwoofer, for a small installation which stays simple and integrated.Features: D Class – Direct Fet ® Technology – Efficient heat dissipation and precision 4/3/2-channel D Class amplifier Stable under 2 Ohms Stackable aluminium chassis with high heat dissipation Low noise operational amplifiers New Japan Radio® NJM4580 Low ESR capacitors – 105°C (220°F) Pseudo-balanced inputs RCA low-level inputs Cable accessories included – easy to install Specifications: 4/3/2-Channel D Class amplifier: High-level inputs with auto-detection / RCA low-level inputs CEA power (4 Ohms): 4 x 58 Watts RMS Power max (2 Ohms): 4 x 100 Watts RMS Power max (4 Ohms bridged): 2 x 200 W RMS Configurable high-pass/low-pass crossover: 40Hz – 400Hz Full Range Mode: Yes Protections: Short circuit / low impedance / reversal of polarity / DC / power drop / heat protection Approximate Dimensions: Height: 4-1/4" Width: 1-11/16" Depth: 7-13/16"