The Timpano TPT-500.4 is a compact four-channel Class D car amplifier rated at 4x125 watts RMS at 2 ohms, bridgeable to 2x225 watts at 4 ohms. Its small heat sink (about 5 by 4 by 2 inches) and 80-90% efficiency let it fit where larger full-range amps won't, with less draw on the battery. It suits drivers upgrading door and rear speakers who want real power without a big chassis. Against mainstream four-channel amps it trades brand recognition and onboard DSP for a tiny footprint and strong 2-ohm output. Owners rate it highly, though the 2-ohm rating means 4-ohm speakers get roughly half the stated power.
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Owners give it 4.9 out of 5 across 30 ratings, praising the power for its size and the clean full-range sound. Complaints are few and mostly about heat and the limited tuning options.
The Timpano TPT500.4 is a compact 4-channel, full-range Class D car audio amplifier. It is rated at 4 x 125 watts maximum dynamic power at 2 ohms and can be bridged to two channels. A high-speed MOSFET power supply lets it run in a small heat sink with about 87% efficiency, which keeps battery draw lower.
Built-in crossover filters let you choose a fixed 90Hz high-pass, a 90Hz low-pass with 45Hz bass boost, or a flat setting for use with an external crossover or DSP. A variable gain control matches the amplifier to the signal level from your source. A protection circuit guards the amplifier against overheating and speaker short circuits.
Turn the amplifier off before adding or removing any connections. Keep cables away from ignition cables, electronic injection modules and the starter switch to avoid noise. Route cables so they do not touch sharp metal edges. The amplifier is designed for use with speakers, and resistive load testing is not recommended.
