What the maker puts in writing
- “IMPORTANT NOTE - The COVO-S is a passive bookshelf speaker that requires an amplifier or home theater receiver to work. It cannot be connected directly to a turntable, smartphone, or computer. Speaker wires are required and are not included”
- “At only 5.1-inch tall and 4.2-inch wide, The Micca COVO-S speaker delivers great sound despite its diminutive size”
- “Each COVO-S speaker holds a 3-inch wool fiber woofer in a ported enclosure, delivering warm and accurate vocals and usable bass extension down to 90Hz”
- “By sharing a common acoustical center point, the concentric 0.75-inch PEI tweeter design maintains coherency through the crossover transition region”
- “Its slim shape and classic design easily fit… as bookshelf speakers, center channel speakers, or use with optional wall mount brackets as surround sound speakers”
By sharing a common acoustical center point, the concentric 0.75-inch PEI tweeter design maintains coherency through the crossover transition region.
That sentence is both accurate and unusually technical for a listing at this price, and it describes a real advantage.
In an ordinary two-way speaker the tweeter sits a few inches above the woofer. Around the crossover frequency both drivers are producing sound at once — and because they are physically apart, their outputs reach your ear at slightly different times. That difference changes as you move, which is why a normal speaker sounds different standing up than sitting down.
A concentric driver has one source point. The blend between woofer and tweeter holds at any angle.
It is the same principle behind studio monitors costing many times this, and nothing else on this shelf uses it.
And ninety hertz, stated honestly
Usable bass extension down to 90Hz.
The word usable matters more than the number. Any speaker produces something an octave lower — forty decibels down and inaudible — which is precisely why a frequency range without a tolerance tells you nothing.
Only one product on this shelf publishes a proper one: the SMSL at $188.30, with 56 Hz–32 kHz ±3 dB. Micca’s own MB42 publishes “60Hz-20kHz” and the MB42X G2 “55Hz-20kHz”, both without tolerances.
What lives below 90 Hz: the bottom strings of a bass guitar (41 Hz), a kick drum’s weight, a film’s explosions, the lowest octave of a piano. What lives above: nearly all vocals, guitars, strings and dialogue.
So these are speakers for voice and detail in a small room, and they do not pretend otherwise.
The warning is the best on this shelf
It cannot be connected directly to a turntable, smartphone, or computer. Speaker wires are required and are not included.
Two things nobody else here combines.
The turntable trap is the one that catches people, because a record player is exactly what bookshelf speakers get bought for. A turntable needs two things these lack: a phono preamplifier, to boost the cartridge’s tiny signal and apply the RIAA correction curve, and then a power amplifier. Some turntables include the phono stage; almost none include power.
And the cable. This is one of only two listings on the shelf that mentions speaker wire at all — and the two disagree: the Edifier P12 at $108.99 says “Speaker wires included”, this one says they are not. The other ten say nothing.
Wool, which is a deliberate choice
A cone must be stiff, so it moves as one piece instead of flexing, and damped, so that when it does resonate the energy dies quickly instead of ringing.
Wool fiber sits on the damped side of that trade: soft, self-damping, forgiving — which tends to sound warm and easy rather than analytical. Micca’s own description says it delivers “warm and accurate vocals”, which is a fair account of what the material does.
Compare the same brand’s MB42 and MB42X G2, both using woven carbon fiber — far stiffer, with more attack and more detail, and less forgiving of a harsh recording.
What is not published
No impedance and no sensitivity, so matching an amplifier is guesswork. Micca publishes both on its MB42 models (4–8 ohms, 85 and 86 dB), and Dayton’s B40 at $59.98 publishes 6 ohms plus a recommended amplifier range of 10–50 W — the only one on the shelf.
No frequency ceiling, only the 90 Hz floor.
Optional wall brackets, where the Edifier builds one into the cabinet and both Daytons have keyhole points.
2,000 g and 130 × 107 × 132 mm are published — the smallest cabinet here.
Prices quoted in this text were read on October 4, 2026. The live price is at the top of the page.
