{
"schema_version": 1,
"id": 13171,
"name": "Focal SUB 25 A4 Single Coil 10\" Subwoofer",
"url": "https://www.carcommunications.co.uk/focal-sub-25-a4-single-coil-10-subwoofer",
"brand": "Focal",
"model": "25A4",
"sku": "25A4",
"gtin": "",
"mpn": "",
"identifiers": {
"model": "25A4",
"sku": "25A4"
},
"description": "Focal 10\" Single Coil Subwoofer\nPerformance Access Range\nThe Access 25 A4 sub is the ideal boost to your car audio system's bass performance. With its 25 cm (10\") diameter and its 200 W RMS rated power, it is ideally suited for fitting in a sealed or bass reflex enclosure.\nKey Points\nDFS® cone (Dual Fiberglass Structure)\nPowerful 43/4\" (120 mm) magnet: 200 Watts RMS\nSpider decompression ventilated coil\nHigh SPL\nPOWER HANDLING\nDFS cone\nDFS® technology features robust and reliable cones. Composed with two 90° woven glass fibres and insulated with polyurethane, it resists to extreme acoustic environments and harsh weather conditions.\nMODERN APPEARANCE\nFrom a visual standpoint, this new product line is resolutely more modern: doped ABS basket structure, integral terminal block, new tweeter design, contoured grilles, etc.\nTechnical Characteristics\nDiameter: 10\" (250mm)\nVoice-coil diameter: 2\" (50mm)\nVoice-coil height: 1\" (25mm)\nMagnet: 43/4\" (120mm)\nMax. power: 400W\nNom. power: 200W RMS\nSensitivity (2,83 V/1 m) : 85dB\nFrequency response: 36Hz – 500 Hz\nImpedance: 4Ω\nSpecifications - Access 25A4 10\" Subwoofer\nNominal power 200W RMS\nMaximum power 400W\nSensitivity (2,83V/1m) 85.45dB\nCone DFS® (Dual Fiberglass Structure)\nSurround Butyl\nNom. impedance 4 Ohms\nDC resistance 4.2 Ohms\nVC diameter 50mm 2\"\nVC height 25mm 1\"\nFormer Kapton\nLayers 4\nWire Copper\nInductance 2.85mH\nXmax ± 8.5mm 05/16\"\nMagnet d x h 120mm x 30mm 423/32\" x 13/16\"\nMagnet weight 1250g 2.75 lbs\nFlux density 0.8T\nGap height 8mm 05/16\"\nNet weight 3.5kg 7.7 lbs\nParameters - Access 25A4 10\" Subwoofer\nFs 23.5Hz\nVas 49.85 liters\nQts 0.506\nQes 0.562\nQms 5.059\nRe 4.19 Ohms\nSd 330.06cm2\nCas 3.55E-07 m5/N\nMas 129.23kg/m4\nRas 3771.9 Ohms.ac\nCms 3.26E-04 m/N\nMms 140.79g\nRms 4.109Kg/s\nCes 908.39mF\nLes 50.49mH\nRes 37.72 Ohms\nBI 12.45N/A\nSPL 82.45 dB/W/m",
"category": [
"Car Accessories",
"Car Speakers",
"Woofers & Subwoofers"
],
"tags": [
"focal",
"performance",
"access",
"sub",
"25a4",
"single",
"coil",
"10 10 10 10 10\"",
"subwoofer",
"woofers",
"subwoofers"
],
"images": [
"https://www.carcommunications.co.uk/image/cache/wp/lj/Speaker/Focal/SUB25A4/Focal-car-audio-solutions-performance-access-subwoofers-sub-25-a4.webp",
"https://www.carcommunications.co.uk/image/cache/wp/lj/Speaker/Focal/SUB25A4/Focal-car-audio-solutions-performance-access-subwoofers-sub-25-a4_0.webp"
],
"price": {
"currency": "GBP",
"amount": 99.99,
"regular": 99.99,
"on_sale": false,
"sale_ends": null,
"includes_tax": true
},
"quantity_discounts": [],
"availability": {
"in_stock": false,
"status": "out_of_stock",
"stock_status": "Out Of Stock",
"minimum_quantity": 1
},
"attributes": {
"Car Speakers": {
"Subwoofer": "10\" (25cm) Subwoofer"
}
},
"options": [],
"dimensions": null,
"weight": {
"value": 1,
"unit": "kg"
},
"rating": null,
"reviews": [],
"shipping": null,
"returns": null,
"warranty": "1 Year Warranty",
"updated": "2026-07-10T11:45:21+01:00",
"store": {
"name": "Car Communications Ltd",
"url": "https://www.carcommunications.co.uk/",
"currency": "GBP"
}
}