Focal

If you want an audio upgrade but you're short on room, Focal's FD 4.350 may be the amp for you. This 4-channel amplifier packs a respectable punch, driving four speakers with up to 100 watts RMS each even though it's only the size of a small paperback book. Explore your options with 2- and 3-channel mode to power subs and speakers in different combos. The amplifier's active high- and low-pass crossovers let you get hands-on with sound optimization as well. And if you're keeping your factory radio, the amp comes with external audio transformers that automatically detect and convert the high-level signals from your speaker wires. The FD 4.350 uses Direct FET Technology to dissipate heat efficiently from its aluminum chassis, ensuring long-term reliability. And speaking of saving space, you can stack this amp with others in the FD Series to power an entire system.