{
"schema_version": 1,
"id": 32572,
"name": "BLAM BL-100RFC 100mm 4\" Hi-Efficiency 2-Way Coaxial Car Audio Speakers",
"url": "https://www.dynamicsounds.co.uk/blam-bl-100rfc-100mm-4-hi-efficiency-2ohm-2-way-coaxial-car-audio-speakers-pair.html",
"brand": "BLAM",
"model": "BL-100RFC",
"sku": "BL-100RFC",
"gtin": "7427307002033",
"mpn": "",
"identifiers": {
"model": "BL-100RFC",
"sku": "BL-100RFC",
"ean": "7427307002033"
},
"description": "Discover the Blam Relax 100 RFC, a 4 inch (10cm) coaxial speaker precisely designed to take your car audio sound to a new level. No one can resist the powerful maximum power of 100W and a nominal power of 50W. In addition, the 20mm soft dome tweeter fits perfectly into the integrated 6 dB/oct. crossover and completes the audio miracle. The speaker is not only powerful, but also extremely efficient with a sensitivity of 90.3 dB and an impedance of 2 O. Let yourself be fascinated by the uncompromising sound and unsurpassed technology of the Blam Relax 100 RFC.\n100 mm bass-midrange speaker with a high quality cellulose pulp cone and a butyl suspension. The generous dimensions of the actuator (70 mm x 15 mm) contribute to an optimal QTS, a good level of sensitivity and high power handling. The tweeter is equipped with a neodymium motor, a soft dome and a 25 mm voice coil on Kapton former.\n{ vehicle_compatibility }\nProduct Features\n100 mm (4‘’) high sensitivity speaker\nMax power 100 W\nNominal power 50 W\nFrequency response 80 Hz – 30 kHz\nSensitivity 90.3 dB\nImpedance 2 Ω\nTechnical features\nOriginal BLAM composite basket reinforced with fiberglass\nHigh quality treated cellulose pulp membrane\nButyl rubber surround\nLong life “Conex” spider\n25 mm voice coil on Kapton former\n70 mm x 15 mm ferrite magnet\nThick magnetic circuit (4 mm)\nHigh quality 20 mm soft dome tweeter\nIntegrated high-pass filter 6 dB/octave (Polypropylene capacitor)\nTechnical Specifications\nComponent Speaker\nMax power 100 W\nNominal power 50 W\nImpedance 2 Ω\nFreq. Response 80 Hz - 30 kHz\nSensitivity (2,83V/1m) 90.3 dB\nMagnet Ferrite\nMagnet size Ø x h 70 x 15 mm 2.756‘’x 0.591‘’\nTotal driver displacement 0.11 l 0.004 cf\nWeight of one component 0.578 kg 1.274 lb\nVoice coil Ø 25 mm 0.984“\nVoice coil height 8.4 mm 0.331“\nCone Cellulose pulp\nProduct Parameters\neffective Ø (d) 84 mm\nSd 55.42 cm²\nXmax 2 mm\nRe 2.6 Ω\nFs 109.87 Hz\nLe 97.33 µH @ 1 kHz\nL2 157.34 µH @10 kHz\nVas 1.76 L\nMms 5.16 g\nCms 0.000407 m/N\nBL 3.49 Tm\nQts 0.66\nQes 0.77\nQms 4.72\nDimensions\n{ note_speakers }",
"category": [
"Speakers",
"4 inch (10 cm)"
],
"tags": [
"155",
"Type 167",
"80",
"B4",
"Summit",
"Cruze",
"YG",
"12"
],
"images": [
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"https://www.dynamicsounds.co.uk/image/catalog/products/Speaker/BL-100RFC/BL-100RFC-1.jpg",
"https://www.dynamicsounds.co.uk/image/catalog/products/Speaker/BL-100RFC/BL-100RFC-2.jpg",
"https://www.dynamicsounds.co.uk/image/catalog/products/Speaker/BL-100RFC/BL-100RFC-3.jpg"
],
"price": {
"currency": "GBP",
"amount": 119.99,
"regular": 119.99,
"on_sale": false,
"sale_ends": null,
"includes_tax": true
},
"quantity_discounts": [],
"availability": {
"in_stock": true,
"status": "in_stock",
"stock_status": "",
"minimum_quantity": 1
},
"attributes": [],
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"name": "Dashboard Trim Tool Panel (4 Pack Assorted)",
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"dimensions": null,
"weight": {
"value": 2,
"unit": "kg"
},
"rating": null,
"reviews": [],
"shipping": {
"country": "GB",
"rate": 0,
"currency": "GBP",
"free": true,
"handling_days": {
"min": 0,
"max": 1
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"transit_days": {
"min": 2,
"max": 5
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},
"returns": {
"accepted": true,
"window_days": 14,
"unlimited": false,
"fees": "customer",
"country": "GB",
"policy_url": null
},
"warranty": "1 Year Warranty on all items",
"updated": "2026-08-20T10:36:22+00:00",
"store": {
"name": "Dynamic Sounds Ltd.",
"url": "https://www.dynamicsounds.co.uk/",
"currency": "GBP"
},
"vehicle_compatibility": {
"header": "The years stated refer to the model's years of manufacture, please check the item description for information about any changes there may be within these productions years.",
"count": 11,
"vehicles": [
{
"make": "Alfa Romeo",
"model": "155",
"years": {
"from": 1992,
"to": 1998,
"text": "1992 - 1998"
},
"product_type": "Speaker Upgrade Packs",
"notes": "(Type 167)"
},
{
"make": "Audi",
"model": "80",
"years": {
"from": 1991,
"to": 1995,
"text": "1991 - 1995"
},
"product_type": "Speaker Upgrade Packs",
"notes": "(B4)"
},
{
"make": "Eagle",
"model": "Summit",
"years": {
"from": 1992,
"to": 1996,
"text": "1992 - 1996"
},
"product_type": "Speaker Upgrade Packs"
},
{
"make": "Holden",
"model": "Cruze",
"years": {
"from": 2002,
"to": 2006,
"text": "2002 - 2006"
},
"product_type": "Speaker Upgrade Packs",
"notes": "(YG)"
},
{
"make": "Mazda",
"model": "121",
"years": {
"from": 1990,
"to": 1996,
"text": "1990 - 1996"
},
"product_type": "Speaker Upgrade Packs",
"notes": "(Autozam Revue)"
},
{
"make": "Nissan",
"model": "Elgrand",
"years": {
"from": 2002,
"to": 2010,
"text": "2002 - 2010"
},
"product_type": "Speaker Upgrade Packs",
"notes": "E51"
},
{
"make": "Renault",
"model": "Kangoo",
"years": {
"from": 1999,
"to": 2008,
"text": "1999 - 2008"
},
"product_type": "Speaker Upgrade Packs"
},
{
"make": "Saab",
"model": "9-4X",
"years": {
"from": 2011,
"to": 2012,
"text": "2011 - 2012"
},
"product_type": "Speaker Upgrade Packs"
},
{
"make": "Suzuki",
"model": "Ignis",
"years": {
"from": 2000,
"to": 2004,
"text": "2000 - 2004"
},
"product_type": "Speaker Upgrade Packs",
"notes": "(FH)"
},
{
"make": "Vauxhall",
"model": "Corsa",
"years": {
"from": 2006,
"to": 2014,
"text": "2006 - 2014"
},
"product_type": "Speaker Upgrade Packs",
"notes": "D"
},
{
"make": "Volkswagen",
"model": "Transporter",
"years": {
"from": 1990,
"to": 2003,
"text": "1990 - 2003"
},
"product_type": "Speaker Upgrade Packs",
"notes": "T4"
}
],
"product_type_description": "0"
}
}