MB Quart RS1-213 Reference 220 Watts 5.25″ Reference 2-Way Component Speaker System

Brand: MB Quart
Model Number: RS1-213
UPC: 841992149922
Model Number: RS1-213
UPC: 841992149922
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MB Quart RS1-213 220 Watts 5.25″ Reference 2-Way Component Speaker System

  • Component speaker system includes 2 woofers, 2 tweeters, and 2 crossovers
  • Frequency range: 65-20,000 Hz
  • Sensitivity: 86 dB
  • Woofer top-mount depth: 2-7/16″
  • Impedance: 4 ohms
  • Grilles included
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Product Description

Features & Specifications



MB Quart RS1-213 220 Watts 5.25″ Reference 2-Way Component Speaker System

MB Quart RS1-213 5.25″ Reference Component 2-Way speakers engineered with .75″ Titanium dome Wide Sphere™ Technology Tweeters with lightweight craft pulp Bamboo fiber cones mounted to an inert frame (which adds no harmonic distortions). The components system features an audiophile external crossover network.


MB Quart RS1-213 .75” titanium dome tweeters utilizing Wide Sphere™ Technology for exceptional musical reproduction of high frequencies are the heart of the system. The innovative tweeter design develops an off-axis dispersion pattern that creates a larger sound stage which brings a concert in your car to life.

Cone Material

The speaker is engineered with a Lightweight Curvilinear craft pulp with bamboo fiber cone. This design adds strength and superior bass frequency reproduction. This means that midrange and bass frequencies remain very musical without the distortions that can be caused by the cone flexing. With the curvilinear design the geometry is specifically engineered for best upper band midrange response which is critical for frequencies that are responsible for vocals and acoustic instruments like piano, guitar and percussion.

External Component Crossover

MB Quart RS1-213 Reference component (2-way) designs feature an external audiophile crossover network which guides the frequencies from the amplifier to each driver (speaker). This system is designed with tight tolerance components for superb sound quality. These networks are passive Cauer topology Butterworth filter crossovers for a smooth transition of frequencies from midrange/mid-bass to the tweeter element designed into a compact crossover housing that can be easily hidden in the installation.

RS1-213 Features:

Surround / Cone Coupling: High temperature adhesives are utilized to keep the coupling from cone to surround fused. Adhesives are also impervious to cold weather.

Gasket: Molded Polymer Sealing gaskets are utilized to keep the speaker isolated from the mounting surface and improve protection from water and dust intrusion.

​Voice Coil / Former Assembly: High temperature imported wire on Kapton former. The MB Quart RS1-213 former is lighter than a standard speaker which allows the component to support slightly higher frequency extension and efficiency.

Spider: Red woven fiber cotton poly blend spider to stabilize the cone and voice coil in all musical situations.

Cooling System: Venting allows air passage through the spider and speaker frame ribs to exchange air over the voice coil. Tweeters feature Positive Thermal Coefficient (PTC) technology.

Tweeter Hardware: Hardware for surface mounting and flush mount the tweeter.

Frame: Aerospace grade PA66 composite with 30% glass fiber speaker frame to assure that no harmonic distortions affect the tone of the speaker.

Brand MB Quart   Model MB Quart RS1-213
Product: MB Quart RS1-213 Reference 220 Watts 5.25″ Reference 2-Way Component Speaker System

Weight: 5.5 lbs
Dimensions: 18.1 × 7.1 × 3.2 in
Series: Reference
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: 65Hz-20kHz
Speaker Sensitivity: 86dB
Speaker Crossover Slope: 12dB/octave
Speaker Height (in): 2.79
Speaker Mounting Diameter / Cut Out (in): 4.48
Speaker Outside Diameter (in): 6.06
Speaker Mounting Depth / Chassis Depth (in): 2.4
Speaker Size (in): 5.25

What's in the box

2 Woofers
2 Tweeters (each has a 38" wire attached)
2 Crossovers
2 Woofer grilles
2 Flush-mount trim rings (Tweeter)
2 Surface-mount covers (Tweeter)
2 Flat mounting bases (Tweeter)
2 Angled mounting bases (Tweeter)
2 Flush-mount clamps (Tweeter)
2 Adhesive backed tweeter pads
Eight 1-1/8" Screws
Four 1/2" Flat-head screws
8 Large speed clips
4 Small speed clips
2 MB Quart crossover badges
2 Adhesive backed hook and loop crossover mounts
Installation guide
2 MB Quart stickers


4 Ω

Number of Speakers

2 Speakers

Speaker Design


RMS Power

56 to 75 Watts, 76 to 100 Watts, 101 to 200 Watts, 201 to 400 Watts

Speaker Sensitivity

86 – 90 db

Speaker Size


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MB Quart offers a 1 year limited warranty


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