Introducing the Micca MB42X 4-Inch 2-Way Loudspeaker

The Micca MB42X 4-Inch 2-Way Loudspeaker is a high-performance bookshelf speaker that delivers outstanding sound quality for music and home theater applications. With a compact and elegant design, this speaker is an excellent addition to any room in your house. The estimated price of the Micca MB42X is around $100 per pair, making it an affordable option for audiophiles on a budget. Although there is no official launching date, the Micca MB42X has been available in the market since 2013 and has gained a reputation for its excellent performance and value.

MB42 Specifications

Woofer: 4” Carbon Fiber Cone with Rubber Surround
Tweeter: 0.75” Silk Dome
Enclosure: Ported Cabinet
Frequency Response: 60Hz-20kHz (Typical In-Room)
Impedance: 4-8 Ohms
Sensitivity: 85dB 1W/1M
Power Handling: 75 Watts (Each)
Dimensions: 9.5” (H) x 5.8” (W) x 6.5” (D)

Speaker Wire of Micca MB42X

The MB42 should be connected to the amplifier with good quality oxygen-free copper speaker wire for best performance. The gauge or thickness of the speaker wire can affect the performance of the MB42. Always choose a speaker wire of the appropriate gauge to prevent excessive speaker wire resistance. Using undersized speaker wire can result in lose of volume, detail, and dynamic range. Please select speaker wire for the MB42 based on the following minimum recommendations:

50' or less - 16 Gauge 2 Conductor
50' - 80' - 14 Gauge 2 Conductor
80'-120' - 12 Gauge 2 Conductor
120'-200' - 10 Gauge 2 Conductor

Amplifier Connection

Amplifier speaker output terminals are typically color coded with black for negative (-) and red for positive (+). Similarly, the MB42 has speaker wire terminals with a black and red color coding. When connecting speaker wire, ensure that the positive terminal on the amplifier is connected to the positive terminal on the MB42. And similarly, the negative terminal on the amplifier should be connected to the negative terminal on the MB42. Speaker wires typically use at least one of several possible methods to help maintain correct polarity, including color coded insulation or conductor strands, or printing of text and symbols along one side of the wire insulation.

Amplifier Considerations

The MB42’s impedance varies between 4 to 8 Ohms. Care must be taken to ensure that the amplifier is capable of handling a 4-Ohm load. Some amplifiers have a switch that must be set to select a 4-Ohm compatible operation mode. Improper amplifier selection or setup may result in permanent damage to the amplifier or speaker.
The MB42 can be used with amplifiers between 15 to 100 watts per channel as long as reasonable care is exercised. If there is audible distortion, turn down the volume until the distortion goes away. Never allow the speaker and amplifier to play for more than a few seconds when there is audible distortion.

Removing the Grill

The MB42 has a removable grill that is held in place by four friction pegs. To remove the grill, carefully pry the grill off from edge until the friction pegs are fully disengaged. To avoid damaging the speaker drivers, do not touch them either with or without the grill in place.
The MB42 can be used without the grills installed as long as care is taken to prevent the drivers from damage such as by hard/sharp objects, liquids, pets, or hands. Store the grills in a safe dry place when not in use.

Stereo Speaker on Stands

When used with speaker stands, it is important to select speaker stands that place the speakers to the ear level of the listener. Do this by measuring the height of the listener’s ear when seated in the listening area, and subtracting 6 inches. For example, if the listener’s ear is measured at 36 inches from the floor when seated, select speaker stands that are approximately 30 inches high.
Desktop Near-field Monitor
The MB42 can be used as desktop/near-field monitor speakers, such as when placed to the either side of a display or mixing console. If the MB42 cannot be located near ear level, Monitor isolation wedges like the Auralex Mo PAD, as well as inexpensive alternatives, can be used to slightly tilt back the speakers, and to decouple the speakers from the desk surface. Be aware that the MB42 is not shielded and thus should not be placed in proximity to CRT displays or other magnetic-sensitive equipment.

2-Way Loudspeaker Description

The Micca MB42X features a 4-inch carbon fiber woofer and a 0.75-inch silk dome tweeter, which deliver a smooth and accurate frequency response. The speaker has a frequency response of 60 Hz - 20 kHz and a sensitivity of 85 dB, making it an ideal choice for nearfield listening applications. The speaker's cabinet is made of high-quality MDF material, which reduces resonance and distortion. The Micca MB42X also features a ported design, which enhances the speaker's bass response and makes it suitable for small to medium-sized rooms.

General Recommendations

Height
For stereo listening from a fixed listening area, the MB42 should ideally be placed at the ear-level of the listener, with the listener comfortably situated in the listening location.
Separation
The distance between a pair of MB42 speakers should be shorter than the distance from the speakers to the listener. Tilt the two speakers inward toward the listener slightly for best results.
Orientation
The speakers provide the best results in its normal vertical orientation. When the speakers are placed much higher or much lower than the recommended ear-level height, the speakers can be placed on its side to provide better off-axis performance in these less than optimal placements.

Loudspeaker Usage-Specific Recommendations

Bookshelf Speakers
When placed on bookshelves, it is important to keep both speakers at the same height. Avoid placing the speakers at different heights as this will degrade the sound. Speaker height should be selected so that it is as close to ear level as possible while considering whether listeners will be seated or standing in the listening area.

Setup Guide

Setting up the Micca MB42X is a straightforward process that involves the following steps:

Place the speakers on a stable and level surface, such as a bookshelf or speaker stands.
Connect the speakers to a stereo amplifier or receiver using speaker wire.
Adjust the amplifier or receiver's volume to a low level.
Play some music or test tones and adjust the speaker's placement and orientation to achieve the best sound quality.
Gradually increase the amplifier or receiver's volume to the desired level.

4-Inch 2-Way Loudspeaker Troubleshooting

Here are some common problems and solutions when setting up the Micca MB42X:

No sound: Check the speaker wire connections and make sure the amplifier or receiver is turned on and set to the correct input.
Distorted sound: Lower the amplifier or receiver's volume or adjust the speaker's placement to reduce distortion.
Weak bass: Make sure the speakers are placed near a wall or corner to enhance the bass response.
Warning: Do not listen to the speakers at extremely high volume levels, as it may damage your hearing and the speakers.

Pros & Cons

Pros

Affordable price
Excellent sound quality
Compact and elegant design
Ported design enhances bass response

Cons

May not be suitable for large rooms
Some users may prefer a more prominent bass response

Customer Reviews about Micca MB42X

The Micca MB42X has received overwhelmingly positive reviews from customers, with many praising its sound quality, value, and design. However, some customers have complained about the speaker's bass response and sensitivity. Overall, the Micca MB42X is an excellent choice for audiophiles looking for an affordable and high-performance bookshelf speaker.

micca Manuals

Read More