Mackie SRM150 Compact Active PA System (2007)
A 150-watt Class-D amplifier with a mixer built into the back. This is Mackie's compact PA in one box.
Overview
Inside sits a 150-watt Class-D amplifier paired with a built-in mixer. Mackie's own advertising billed it as ideal for "multiple applications" and, in the company's words, claimed no other compact PA was as loud or sounded as good. That's marketing copy, not a verdict. It does show who the SRM150 was aimed at: the person who needs a mic and a line source amplified without hauling a rack.
Mackie announced the unit in 2007, and the period trade press carried it as a running product-spotlight item. EQ-Magazine (July 2007, p.75) listed a launch date of late June 2007 for the SRM150. Other installments of the same spotlight section pegged it to March, April, and May of that year. The exact on-sale date is slippery, but the 2007 window is solid. The magazine also carried Mackie's stated list price of $389.99, which is handy to know when a used one turns up today.
What the SRM150 is not is a full-range PA. Mackie's own materials describe it as a compact active system with a built-in mixer — the kind of thing that lives on a mic stand, a tabletop, or a small riser and handles a vocal, an acoustic guitar, a backing track, or a podium feed. The 150-watt Class-D amplifier is the engine behind that flexibility; Class-D was the sensible choice here because it keeps the box light and cool-running, which matters when the whole point is grab-and-go. The built-in mixer means you don't need a separate console to get a signal in, and that integration is the feature that separates the SRM150 from a plain powered speaker.
Treat the SRM150 as a utility piece rather than a collectible. It's a working tool from Mackie's mid-2000s compact-PA expansion, sold at a modest list price and built to be used hard. The trade-press record is thin on independent measurement. The EQ-Magazine coverage is a product-spotlight advertisement, not a lab test, so hard numbers on dispersion, frequency response, or max SPL aren't there. What the documentation does confirm is 150 watts, Class-D, built-in mixer, $389.99 list, 2007.
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