What the MPM4000 is / Key Specs & Purpose The MPM4000 is not an amplifier or head unit — it’s a “Power Output Meter” / “VU-style meter unit” intended for use with a car audio system (or other amplifier setups) rather than producing sound by itself.
Its main job is to display the actual power output being delivered by a connected amplifier — letting you “see” the wattage (and signal level) going to the speakers.
The power meter scale is calibrated to read from a very low power (hundredths of a watt) up to 200 watts.
It uses the signature styling of its manufacturer (glassy front, analog-meter needles, blue illumination) typical of vintage / classic equipment meters, which many enthusiasts appreciate for aesthetics and “mood.”
📦 What It’s Good For — and What It’s Not What it is good for: If you already have (or plan to build) a car-audio system — especially with a vintage or “classic” vibe — MPM4000 gives you a visual meter for output power: helps you see how hard your amplifier/speakers are working. Great for people who appreciate the look & feel of analog meters — and want that “classic-car audio / vintage-hifi” aesthetic in their system. If integrated properly (with correct wiring and amplifier), it gives a useful real-time indication (at least approximate) of output levels.อ่านเพิ่มเติม