Micca MB42X

The Micca MB42X is a bookshelf speaker with 8 Ω impedance and 85 dB sensitivity. Every receiver and amp in our catalogue can drive it.

Impedance
8 Ω
What the receiver must be rated for
Sensitivity
85 dB
Higher is louder per watt
Bass extension
60 Hz
How low it plays
Woofer
4 in
Nominal size

$100 a pair (MSRP, September 2026)

3D model of the Micca MB42X

Drag to turn it. Built from the published dimensions, not a photo.

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Which receivers and amps can drive it?

What decides it is impedance: the MB42X is 8 Ω, and the receiver or amp has to be rated for that.

  • Works

    Receivers and amps rated for 8 Ω

    29 in our catalogue

All 29 receivers and amps we checked

Works29

Which center speaker matches it?

No center in our catalogue is from the Micca range yet. Any center plays; one from the same series is the closest tonal match.

Plan your room around the MB42X.

Draw your room in 3D, place the MB42X and see how they sound at your seat, with every connection to your receiver checked. Designing is free.

Build it in your room

MB42X specifications

Impedance
8 Ω
Sensitivity
85 dB (1 W, 1 m)
Low end
60 Hz
Drivers
1 × 19 mm, 1 × 102 mm
Size
6×9×6 in
MSRP
$100 a pair (MSRP, September 2026)

Every value comes from the sources under References, last retrieved September 15, 2026. To check it against the rest of your system, use the compatibility checker.

Questions about the MB42X

What receiver do I need for the MB42X?
One rated for 8 Ω speakers. In our catalogue, Denon AVR-S570BT, Emotiva BasX A-700 and Yamaha RX500A are rated to drive it.
Is the MB42X 4 ohm or 8 ohm?
The Micca MB42X has a nominal impedance of 8 Ω. Use a receiver or amplifier rated down to 8 Ω or lower.
How much power does the MB42X need?
Micca does not publish a recommended amplifier power. Its sensitivity is 85 dB (1 W, 1 m). How much of that you use depends on how far you sit and how loud you listen, which the 3D editor works out for your room.
How low does the MB42X go?
The Micca MB42X is rated down to 60 Hz. Below that, a subwoofer takes over; where the bass actually lands depends on your room's modes.
How big is the MB42X?
The Micca MB42X measures 147 × 241 × 165 mm (5.8 × 9.5 × 6.5 in, width × height × depth).

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References

  1. Micca MB42X: Spec sheet, miccatron.com, retrieved September 15, 2026
  2. Micca MB42X: Retailer listing, amazon.com, retrieved September 15, 2026

Brand names are trademarks of their owners. Not affiliated with or endorsed by any manufacturer. 3D models are our approximations. Prices are manufacturer list prices (MSRP) as of the month shown. How we earn from buy links: affiliate disclosure.