What the maker puts in writing
- “Each OoO speaker holds two 3-inch square frame woofers in a ported enclosure, achieving usable bass extension down to 60Hz”
- “The tweeter is based on Micca’s popular 0.75-inch silk dome design, using a high efficiency neodymium magnet and small diameter bezel for tight driver spacing”
- “A 6dB/Octave low-pass circuit is used on the woofers while a 12dB/Octave high-pass circuit with level matching is used on the tweeter”
- “Its slim shape can be used horizontally as a center channel speaker, vertically as bookshelf speakers, or use with optional wall mounting brackets as surround sound speakers”
- “The compact Micca OoO speaker sounds much larger than it looks”
Tight driver spacing is the real feature, and it is the right one
A center speaker has two woofers side by side and faces an audience spread sideways across a sofa.
When two physically separated drivers both produce the same midrange frequency, their outputs cancel at angles off the central axis. One seat hears a dip in a man’s voice that the seat beside it does not.
And the effect worsens as the spacing between the drivers grows, because the path-length difference to an off-axis ear scales with it.
So shrinking the gap pushes the cancellation up to frequencies where it matters less — and Micca does it twice over:
Square frame woofers. A round frame forces the cabinet to be wider than the cone by the full mounting flange all the way round. A square frame puts the fixings in the corners, so the cone sits closer to the edge — and the two woofers sit closer to each other.
A small-diameter tweeter bezel, for the same reason, closing the gap between woofers and tweeter.
Three other listings here address the same problem by other means: Dayton’s C40 and JBL’s 245C with 2.5-way crossovers, which stop both woofers covering the midrange at all, and Neumitech’s CS5, which names it outright — “designed to minimize driver spacing, reducing the effects of off-axis lobing”.
Nine of the thirteen do not mention it.
Which is also why it is this narrow
175 × 279 × 99 mm. The narrowest cabinet on this shelf.
The widths here: 11 in (279 mm) this · 13 in (330 mm) Dayton · 13.4 in (340 mm) Yamaha · 14 in (356 mm) Goldwood PSC-43 · 14.7 in (373 mm) Neumitech · 15 in (381 mm) Polk and both Micca MB42X-C · 16.9 in (430 mm) Sony · 18.7 in (476 mm) Klipsch · 22.8 in (579 mm) Triangle · 29.1 in (739 mm) JBL
And 3.90 in (99 mm) deep, which matters on a shallow shelf.
The asymmetric crossover, explained
A 6dB/Octave low-pass on the woofers while a 12dB/Octave high-pass with level matching is used on the tweeter.
The most considered crossover statement on this shelf, and the asymmetry is deliberate.
The woofers get a gentle filter — one component, minimal phase disruption — letting them run up naturally.
The tweeter gets a steeper one, because a 0.75-inch dome has almost no excursion available: feed it bass and it reaches its limit, raising distortion across the whole treble band.
And level matching handles the arithmetic of this design: two woofers produce more output than one for the same input, so the tweeter must be lifted to match or the speaker would sound bass-heavy.
Worth setting beside the oddity elsewhere in Micca’s own range: the MB42X-C at $89.99 publishes an “18dB crossover” and the MB42X-C G2 at $89.99 publishes “12dB/Octave” — same price, same cabinet, opposite claims about which is better.
And it is honest about being two products
Can be used horizontally as a center channel speaker, vertically as bookshelf speakers.
Micca sells this same cabinet on both shelves — as the OoO-S center here at $79.99 and as the OoO-P bookshelf pair at $129.99 — and says so.
The reason it works both ways is the symmetric woofer–tweeter–woofer layout: it behaves the same whichever way up it goes. A conventional speaker with the woofer under the tweeter, laid on its side, radiates unevenly across the room.
What is not published
No sensitivity, no impedance, no power handling — where Micca’s own MB42X-C G2 publishes all three (86 dB, 4–8 ohms, 100 W).
Sensitivity is the gap that costs most: every 3 dB is a doubling of required amplifier power, and the four published figures on this shelf span 95 dB (Klipsch) to 86 dB (Micca), a factor of eight.
No frequency ceiling, only the 60 Hz floor — stated as “usable”, which is an honest hedge. The only true tolerance on this shelf is Klipsch’s ±3 dB.
No port direction, which on a center speaker is the key question: a rear port pushed into a cabinet is choked. Triangle alone fires its vents forward.
2,000 g is published.
Prices quoted in this text were read on October 4, 2026. The live price is at the top of the page.
