Skip to content

MB Quart PK1-113 Premium 5-1/4 Inch 220 Watts 2-Way Coaxial Speakers (Pair)

Low stock
Original price $139.95 - Original price $139.95
Original price
$139.95 - $139.95
Current price $139.95

MB Quart PK1-113 Premium 5-1/4 Inch 220 Watts 2-Way Coaxial Speakers

5.25″ Premium 2-Way coax speakers with 1″ Magnesium WideSphere™ Technology Tweeters with pop aerated paper cone with a Mica blend.

Tweeters and Sound Stage:
The 1" magnesium dome tweeters create exceptional musical reproduction of high frequencies.
The innovative tweeter design results in an off-axis dispersion pattern, enhancing the sound stage and bringing a concert-like experience to your car.
Cone Material and Midrange Response:
The lightweight aerated pop paper cone with Mica blend ensures strength and superior bass frequency reproduction.
The curvilinear design specifically optimizes upper-band midrange response, critical for vocals and acoustic instruments.
Durability and Isolation:
High-temperature adhesives keep the coupling between the cone and surround fused.
Molded Polymer Sealing gaskets isolate the speaker from the mounting surface, improving protection against water and dust intrusion.
Efficiency and Cooling:
The voice coil, wound with high-temperature imported wire on a Kapton former, supports slightly higher frequency extension and efficiency.
Venting allows air passage through the spider and speaker frame ribs, keeping the voice coil cool during operation.
Quality Components:
Premium coaxial (2-way) designs feature a built-in audiophile crossover with tight tolerance components for superb sound quality.
Stainless steel connectors ensure a superior electrical connection.
Enhanced Sound Stage:
The tunable waveguide tweeter housing with a removable phase lens creates a larger-than-life sound stage.
Frame Material:
The aerospace-grade PA66 composite frame with 30% glass fiber prevents harmonic distortions, preserving the speaker’s tone.


  • Weight: 4.5 lbs
  • Dimensions: 15.8 × 8.1 × 4.5 in
  • Type: Speaker
  • Brand: MB Quart
  • Series: Premium
  • Category: Mobile
  • Condition: New
  • Color: Black
  • Best Buy Available: Yes
  • Best Buy Link:
  • Warranty: 1 Year
  • Speaker RMS Power Handling (watts): 55/110 Each & System
  • Speaker Peak Power Handling (watts): 110/220 Each & System
  • Speaker Impedance (ohms): 4
  • Speaker Frequency Response: 55Hz-22kHz
  • Speaker Sensitivity: 85.9dB
  • Speaker Crossover Slope: 6dB/Octave
  • Speaker Height (in): 3.22
  • Speaker Mounting Diameter / Cut Out (in): 4.48
  • Speaker Outside Diameter (in): 6.06
  • Speaker Mounting Depth / Chassis Depth (in): 2.44
  • Speaker Size (in): 5.25

What is Proposition 65?

California’s Proposition 65 protects California consumers by requiring special warnings for products that contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm where those products would expose consumers to such chemicals above certain threshold levels.

If a product description on this site directed you to this page, the warning for this item is:

WARNING: Cancer and Reproductive Harm -

Who is this message intended for?

Customers with a California billing or ship to address.

Why are you seeing the message now?

California implemented new guidelines for Proposition 65 warnings, effective August 30, 2018. These guidelines were applied to make the warnings more clear and reasonable.

Where can you get more information about Proposition 65?

Learn more from the California Office of Environmental Health Hazard Assessment (OEHHA) site here.