MB Quart - Reference 280W Class D 4-Channel Amplifier - Black
Price range: $262.99
Brand: MB Quart
Category: Audio
A pair of MB Quart headphones featuring 10 Hz–0.035 kHz frequency response.
PQS: 85 (computed 2026-03-16 07:03:24.641073+00:00)
GTIN-14: 00806576232667
Key specs
A human-friendly subset of specs (non-null)
Frequency response
10 hertz - 0.035 kilohertz
Wireless (BT/WiFi)
No
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6498283 | 262.99 USD | In stock | View offer → | 2026-03-16 02:45:33.598621+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 262.99 USD | In stock | 2026-03-16 02:45:33.598621+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-15 02:33:55.604316+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-14 02:37:11.876428+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-13 02:46:39.435044+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-12 02:38:02.754640+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-11 02:36:34.504463+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-10 02:46:27.826164+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-09 02:45:10.517302+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-06 06:05:49.821769+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-03 01:56:24.415513+00:00 |
| bestbuy | 262.99 USD | In stock | 2026-03-02 07:56:15.908141+00:00 |
Full specs
Show full spec table
| Frequency response | 10 hertz - 0.035 kilohertz |
|---|---|
| Wireless (BT/WiFi) | No |
| Reconciled at | 2026-03-06 10:20:22.157613+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 - Reference 280W Class D 4-Channel Amplifier - Black |
|---|---|
| Raw brand | MB Quart |
| Raw category | Best Buy > Car Electronics & GPS > Car Audio > Car Amplifiers > Multi-Channel Amps |
Canonical highlights (non-null)
| core.title | MB Quart - Reference 280W Class D 4-Channel Amplifier - Black |
|---|---|
| core.seo_title | MB Quart RA1-280.4 |
| audio.wireless | No |
| audio.frequency_response | 10 hertz - 0.035 kilohertz |
| brand | MB Quart |
| model | RA1-280.4 |
| gtin14 | 00806576232667 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6498/6498283_sd.jpg |
| category | audio |
| physical.depth_in | 11.0 |
| physical.width_in | 6.0 |
| physical.height_in | 2.25 |
| physical.weight_kg | 2.25 |
| physical.dimensions_in | 2.25 x 6 x 11 in |
| warranty.labor | 1 Year |
| warranty.parts | 1 Year |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"image": "https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6498/6498283_sd.jpg",
"details": [
{
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"value": "MB Quart",
"values": [
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{
"name": "Model Number",
"value": "RA1-280.4",
"values": [
"RA1-280.4"
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{
"name": "Product Name",
"value": "Reference 280W Class D 4-Channel Amplifier",
"values": [
"Reference 280W Class D 4-Channel Amplifier"
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},
{
"name": "Color",
"value": "Black",
"values": [
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},
{
"name": "Total Power Handling Maximum",
"value": "280 watts",
"values": [
"280 watts"
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},
{
"name": "Amplifier Class",
"value": "D",
"values": [
"D"
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},
{
"name": "Number Of Channels",
"value": "4",
"values": [
"4"
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},
{
"name": "Minimum Frequency Response",
"value": "10 hertz",
"values": [
"10 hertz"
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},
{
"name": "Maximum Frequency Response",
"value": "0.035 kilohertz",
"values": [
"0.035 kilohertz"
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},
{
"name": "Total Harmonic Distortion",
"value": "0.09 percent",
"values": [
"0.09 percent"
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},
{
"name": "Signal-to-Noise Ratio (SNR)",
"value": "101 decibels",
"values": [
"101 decibels"
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},
{
"name": "Bass Boost",
"value": "Variable",
"values": [
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},
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"value": "Variable",
"values": [
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"value": "Variable",
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"name": "MOSFET Power Supply",
"value": "Yes",
"values": [
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"value": "No",
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"value": "2.25 inches",
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"name": "Product Depth",
"value": "11 inches",
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"features": [
{
"feature": "280W Maximum Power\nEnsures robust audio."
},
{
"feature": "Low-Noise Preamplifier Circuit\nA maximum low-voltage signal from the source unit comes into the amplifier circuit with minimal distortion."
},
{
"feature": "Nickel-Plated RCA Inputs\nErosion-resistant and high temperature impact-resistant with hex screw terminals that allow for secure connections."
},
{
"feature": "Electronic Equalizer\nControl of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers."
},
{
"feature": "Class SQ (Class D)\nOffers the efficiency of today's D-Class with increased engineering to focus on sound quality from the power supply through the output devices, the FLUID-FETS."
},
{
"feature": "FLUID-FETS\nPainstakingly selected for their ability to efficiently produce power and mimic the sound quality of the highest-end home amplifiers."
},
{
"feature": "Aluminum Heat Sink\nQuickly dissipates heat to allow the amplifier to run lower impedance for longer duration."
},
{
"feature": "Rugged MOSFET Pulse Width Modulation Power Supply\nAllows the amplifier to produce efficient power without taxing the vehicle electrical system."
},
{
"feature": "Heavy-Duty Connections\nAllows a secure electrical signal to pass into wiring and resist erosion, which adds longevity to the amplifier."
},
{
"feature": "Wired Bass Remote\nAdjustments to bass frequencies can be made from the control mounted anywhere in the vehicle."
},
{
"feature": "Auto Turn-On\nThe amplifier turns on when a signal is received on the RCA inputs, so an amplifier remote turn-on wire is not needed to turn on the amplifier."
},
{
"feature": "0-9dB Bass Boost\nLets you add punchy bass to your music."
},
{
"feature": "101dB Signal-to-Noise Ratio\nOffers crisp sound."
},
{
"feature": "0.09% THD (Total Harmonic Distortion)\nProvides clean sound."
},
{
"feature": "Variable Electronic Crossovers\nAllow for complete control of the sound."
}
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"condition": "New",
"salePrice": 262.99,
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"manufacturer": "MB Quart",
"regularPrice": 262.99,
"shippingCost": 0.0,
"longDescription": "Enjoy rich sound with this four-channel MB Quart RA1-280.4 Reference Series car audio amplifier. The 280W output delivers enhanced sound quality, while the low-noise preamplifier circuit minimizes distortion. Featuring variable electronic crossovers, this MB Quart RA1-280.4 Reference Series car audio amplifier offers complete sound control, and the aluminum heat sink boosts cooling.",
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Newegg raw specs
No Newegg raw specs saved for this product yet.