MB Quart - Formula Series 3.5" 2-Way Car Speakers with Polypropylene Cones (Pair) - Black
Price range: $45.99
Brand: MB Quart
Category: Audio
A pair of MB Quart headphones featuring 3-1/2" drivers, 80 Hz–20 kHz frequency response, and 4Ω impedance.
PQS: 95 (computed 2026-03-14 07:04:58.162367+00:00)
GTIN-14: 00806576228325
Key specs
A human-friendly subset of specs (non-null)
Driver
3-1/2"
Frequency response
80 hertz - 20 kilohertz
Impedance (ohms)
4
Wireless (BT/WiFi)
No
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6507885 | 45.99 USD | In stock | View offer → | 2026-03-14 02:42:18.784372+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 45.99 USD | In stock | 2026-03-14 02:42:18.784372+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-13 02:51:48.480691+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-12 02:43:06.264699+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-11 02:41:44.046257+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-10 02:51:31.588790+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-09 02:50:14.278424+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-06 06:08:47.974219+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-03 01:59:10.349343+00:00 |
| bestbuy | 45.99 USD | In stock | 2026-03-02 08:01:49.516386+00:00 |
Full specs
Show full spec table
| Driver | 3-1/2" |
|---|---|
| Frequency response | 80 hertz - 20 kilohertz |
| Impedance (ohms) | 4 |
| Wireless (BT/WiFi) | No |
| Reconciled at | 2026-03-06 10:56:32.254648+00:00 |
Canonical JSON (expand)
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Related products
Simple similarity over extracted specs (publish_set only)
Debug data (expand)
| Raw title | MB Quart - Formula Series 3.5" 2-Way Car Speakers with Polypropylene Cones (Pair) - Black |
|---|---|
| Raw brand | MB Quart |
| Raw category | Best Buy > Car Electronics & GPS > Car Audio > Car Speakers |
Canonical highlights (non-null)
| core.title | MB Quart - Formula Series 3.5" 2-Way Car Speakers with Polypropylene Cones (Pair) - Black |
|---|---|
| core.seo_title | MB Quart FKB108 |
| audio.driver | 3-1/2" |
| audio.wireless | No |
| audio.impedance_ohms | 4 |
| audio.frequency_response | 80 hertz - 20 kilohertz |
| brand | MB Quart |
| model | FKB108 |
| gtin14 | 00806576228325 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6507/6507885_sd.jpg |
| storage.form_factor | 3.5" |
| category | audio |
| physical.depth_in | 9.88 |
| physical.width_in | 5.88 |
| physical.height_in | 3.0 |
| physical.weight_kg | 0.79 |
| physical.dimensions_in | 3 x 5.88 x 9.88 in |
| warranty.labor | 1 Year |
| warranty.parts | 1 Year |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"name": "RMS Power",
"value": "35 watts",
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"value": "4 ohms",
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{
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"value": "88 decibels",
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"value": "Yes",
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"value": "1.5 inches",
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"feature": "Lightweight thermal-formed polypropylene cones\nDeliver impactful bass with minimal cone flex."
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"feature": "1\" aluminum dome tweeter\nOffers natural-sounding high-frequency response, while the WideSphere technology allows the tweeter to develop a wider listening area for off-axis listening."
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"feature": "4-ohm impedance\nConducts power evenly to keep the speaker at the appropriate level."
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"longDescription": "Experience true bass on the move with these MB Quart Formula 3.5-inch speakers. A high temp adhesive keeps the cone in place for prolonged high power use, while the over-coil cooling system allows efficient heat dissipation for enhanced performance. These MB Quart Formula 3.5-inch speakers feature aluminum dome tweeters for a rich and distortion-free midrange impact.",
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Newegg raw specs
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