MB42 - Loudspeaker Micca - Free user manual and instructions

Product Type	Passive Bookshelf Speaker
Woofer	4-inch (100 mm) Mineral-Filled Polypropylene Cone
Tweeter	0.75-inch (19 mm) Silk Dome
Impedance	4 Ohms
Power Handling (RMS)	75 Watts
Peak Power Handling	140 Watts
Frequency Response	55 Hz - 20 kHz
Sensitivity (1W/1m)	83 dB
Crossover Frequency	3 kHz
Recommended Amplifier Power	15 - 75 Watts per channel
Dimensions (H x W x D)	9.1 x 5.7 x 6.5 inches (231 x 145 x 165 mm)
Weight (each)	7.5 lbs (3.4 kg)
Cabinet Material	MDF (Medium Density Fiberboard)
Cabinet Finish	Black Wood Grain Vinyl
Grille	Removable Black Cloth Grille
Terminal Type	5-Way Binding Posts (Banana Plugs Compatible)
Magnetic Shielding	No
Recommended Placement	Bookshelf or Stand Mount, at Ear Level
Cleaning Instructions	Wipe with a dry, soft cloth. Do not use solvents or water.
Warranty	1 Year Limited Warranty

Frequently Asked Questions - MB42 Micca

What amplifier power is recommended for the Micca MB42?

The recommended amplifier power is 15 to 75 watts per channel at 4 ohms. Use a quality stereo receiver or amplifier within this range for optimal performance.

Can I use the MB42 as surround speakers?

Yes, the MB42 works well as surround or rear speakers in a home theater setup. Their compact size and good dispersion make them suitable for surround duty.

What is the impedance of the MB42?

The MB42 has an impedance of 4 ohms. Ensure your amplifier is stable at 4 ohms to avoid overheating or distortion.

How do I connect speaker wires to the MB42?

The MB42 uses 5-way binding posts. You can use bare wire, pin connectors, spade lugs, or banana plugs. Unscrew the cap, insert the wire, and tighten.

Are the Micca MB42 speakers magnetically shielded?

No, the MB42 are not magnetically shielded. Avoid placing them directly next to CRT TVs or magnetic media to prevent interference.

What is the frequency response of the MB42?

The frequency response is 55 Hz to 20 kHz. They provide clear mids and highs, but for deep bass, a subwoofer is recommended.

Can I bi-wire or bi-amp the MB42?

No, the MB42 has single binding posts only, so bi-wiring or bi-amping is not possible without modification.

What is the best placement for the MB42?

Place them at ear level when seated, preferably on stands or bookshelves. Keep them at least 6 inches from walls to reduce bass boom.

How should I clean the MB42 speakers?

Wipe the cabinet with a dry, soft cloth. Do not use water, solvents, or abrasive cleaners. The grille can be vacuumed gently.

Does the MB42 come with a warranty?

Yes, the MB42 includes a 1-year limited warranty against defects in materials and workmanship. Register with Micca for service.

USER MANUAL MB42 Micca

Micca MB42 4-Inch 2-Way Loudspeaker

Thank you for purchasing the Micca MB42 Bookshelf Speaker! This product has been designed for optimal audio reproduction performance in a variety of home entertainment configurations, with accuracy, clarity, and impact that discerning audiophiles listen for.

Please take the time to become familiar with the MB42 and the placement options as detailed in this manual.

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.

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.

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 MoPAD, 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.

Speaker Wire

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 loss 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.

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)

Information in this manual is believed to be accurate and reliable but Micca Ltd assumes no responsibility for its use nor for any infringement of patents or other rights of third parties which may result from the use of this manual or the product. Micca reserves the right to change product specifications at any time without notice.

Micca, MB42, and the Micca logo are trademarks of Micca Ltd. Other trademarks referenced in this manual are the properties of their respective owners.

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