Micca COVO-S Concentric Driver Speaker
Where to Buy
The COVO-S compact speaker system is another landmark product form Micca that delivers great sound in a small package. Drawing from the same classic yet distinctively design as Micca’s popular MB series speakers, the COVO-S looks great and is easy to place in wide variety of room decors. Its exceptionally rich sound belies its diminutive size and makes it a great selection for use in a small to medium sized listening area such as a den, or office. The COVO-S is shielded and can be safely used near older CRT TVs.
Superior Sound Through Superior Engineering
Built using patented concentric driver design, the COVO-S’s audio performance results from a balanced application of sophisticated drivers, enclosure tuning, and crossover construction. The speaker driver used is a combination 3-inch wool paper cone woofer and a centrally mounted 0.75″ PEI dome tweeter. The tweeter is fully inset into the voice coil of the woofer and uses the same magnetic motor structure. 
By sharing a common acoustical center point, the concentric woofer and tweeter design maintains coherency through the crossover transition region. The unique curve of the woofer cone serves as a horn waveguide for the tweeter, resulting in improved off-axis dispersion characteristics.
The COVO-S employs a ported enclosure design, generating modest bass output for a warm and full sound signature. A 6dB/octave crossover at 3.2kHz makes for a smooth transition between the woofer and the tweeter. Rounding out the package are full size 5-way speaker wire binding posts and removable grills. Despite being very small and budget friendly, the COVO-S is exceptionally well built and punches above its weight in terms of sound.
Compact and Affordable
Discover how good a pair of affordable compact speaker can be by trying them risk free in your home. Due to the COVO-S’s small size, they work best when used in a small to medium sized listening area. Place them along a wall or near a corner of the room for better bass output, or pair them with a subwoofer if more bass is desired. If you are not absolutely delighted with the COVO-S’s performance, simply return them for a refund.
User’s Manual:
Micca COVO-S User’s Manual (opens in a new tab/window)
Micca COVO-S User’s ManualHome Speakers
Why is the impedance 4-8 Ohms? Will it work with my receiver?
Micca is one of the few manufacturers that specifies the impedance of its speakers as a range, rather than a fixed nominal value. The impedance of a speaker varies depending on the frequency being played, and it is normal for most 8ohm rated speakers have impedance that dip as low as 4ohms or even lower.
While the Micca speakers work just fine with most amplifiers and receivers rated for speakers designed to handle 6ohm or 8ohm speakers, the 4-8ohm rating is a reminder to users that these speakers do have impedance that go down to as low as 4ohms and care should be taken with the listening volume so as not to damage the amplifier or speakers. Please observe the following precautions:
- Do not play the speakers at a volume where there is audible distortion
- If the amplifier’s output protection is triggered, immediately discontinue use
- Ensure that the amplifier has plenty of ventilation and is not in an enclosed space
- If the amplifier has a “4Ohm” or “High Current” mode, enable it
Posted in: Micca MB42, Micca MB42-C, Micca MB42X, Micca MB42X-C
Different versions of Micca MB42X and MB42X-C: Original, MKII, MKIII
At Micca, we continuously look for ways to improve our products for better performance, quality, and value. Since introduction, MB42X and MB42X-C speakers have undergone evolutionary updates as described below:
Original Release – Based on MB42, with the following differences
- 8-element 12dB/Octave crossover upgrade
- Matte black vinyl
- Magnetic grill system.
MKII – Serial numbers start with “MB42XMKII” or “MB42XCMKII”.
- Slight adjustments to woofer and tweeter response characteristics
- Flared plastic port tube (MB42X only)
- Additional internal bracing at four side enclosure walls
- Poly fill stuffing added
MKIII – Serial numbers start with “MB42X3” or “MB42XC3”
- 9-element 18dB/Octave crossover
- Tighter driver response tolerance
MKIII crossovers are backwards compatible with all previous versions and provides the following benefits:
- Steeper slopes for reduced distortion and acoustic lobing
- Adjusted roll off frequency for improved phase integration
- Updated driver level matching to result in overall smoother response
Posted in: Micca MB42X, Micca MB42X-C
Micca MS10/MS12 Subwoofer No Sound
There have been a small number of Micca MS10 and MS12 subwoofers that does not play sound when received by the customer. The symptom is that the subwoofer turns on, the power light turns blue, but there is no sound. The cause of this is that an internal subwoofer connector has come loose during shipping and need to be plugged back in. If your subwoofer has this behavior, please follow the steps below to check if it applies to you. Please read the instructions carefully and if you are not comfortable doing any of the steps, please contact our support and we will exchange the subwoofer for you. The steps here are to save you the trouble of boxing up the subwoofer and returning it.
Step 1: Remove all audio connections.
Step 2: Use a philips screw driver, remove the 12 screws along the border of the metal amplifier plate on the back of the subwoofer.
Step 3: Tilt the amplifier out and check if the connector at the circled location below has come loose. Reconnect the connector if necessary. Note that the red wire is to the left, and black wire to the right
Step 4: Reinstall the plate amplifier, hand tighten all 12 screws along the border of the metal amplifier plate.
Step 5: Reconnect audio connections, and plug the subwoofer back into AC power. The subwoofer should now be working correctly. If you continue to experience issues, please contact email support@miccatron.com and we will provide additional assistance.
Posted in: Micca MS10, MS12
Micca MB42 vs MB42X, What’s the difference?
When it comes to the MB42 vs MB42X decision, it’s important to understand the similarities and differences between these two speakers. We hope this guide is helpful in making the right purchase choice.
Similarties
The MB42 and MB42X uses the same drivers, consisting of a 4-inch carbon fiber woofer, and 0.75-inch silk dome tweeter. Both use the same size enclosure and the same tuning frequency. With their grills on, it is difficult to tell them apart visually from a few feet away.
Differences
Even though the MB42 and MB42X share the same drivers and enclosure design, the MB42X represents a sizable upgrade in terms of audio performance. The most significant improvement offered by the MB42X over the MB42 is the inclusion of a 9-element crossover network. This crossover significantly improves the tonal balance and clarity of the speaker and is what’s responsible for the MB42X being such a favorite among hi-fi enthusiasts. There are also other improvements included in the MB42X, such as a flared port tube and a magnetic grill system. Lastly there is the cosmetic difference of a matte black finish on the MB42X, versus the black faux wood grain on the MB42.
The table below contains the differences between the MB42 and MB42X.
| MB42 | MB42X | |
| Woofer | 4-Inch Fiber Woofer | 4-Inch Fiber Woofer |
| Tweeter | 0.75-Inch Silk Dome | 0.75-Inch Silk Dome |
| Crossover | None, protective capacitor on tweeter | Advanced 9-element crossover, 18dB/Octave woofer and tweeter |
| Enclosure material | MDF | MDF |
| Enclosure Finish | Black faux wood grain vinyl | Matte black vinyl |
| Tuned Port | Cardboard tube | Plastic tube, external flare |
| Protective Grill | Cloth, peg mount | Cloth, magnetic mount |
Posted in: Micca MB42, Micca MB42X