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Down4Sound

DOWN4SOUND SB 15" SUBWOOFER - 2 OHM DVC | 500W RMS

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SKU:
SB15D2
  • Down4Sound DOWN4SOUND SB 15" SUBWOOFER - 2 OHM DVC | 500W RMS
  • Down4Sound DOWN4SOUND SB 15" SUBWOOFER - 2 OHM DVC | 500W RMS
  • Down4Sound DOWN4SOUND SB 15" SUBWOOFER - 2 OHM DVC | 500W RMS
MSRP: Ft56508
Ft53683
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Description

Elevate your car audio system with the DOWN4SOUND SB-15 Subwoofer, crafted to deliver deep, precise bass and exceptional clarity. Designed with a dual 2-ohm voice coil configuration and 500W RMS power handling, this subwoofer is built for high-performance setups that demand durability and top-tier sound quality. Its optimized suspension and robust motor structure ensure strong, accurate low-frequency output for daily or demo-focused builds.


Key Features

  • 500W RMS power handling
  • Dual 2-ohm voice coil configuration
  • 2.5-inch high-temperature voice coil
  • 21 mm one-way Xmax
  • Highly optimized suspension
  • Designed for high-performance systems

Technical Specifications (T/S Parameters)

  • Revc (DC Resistance): 2.03 ohm
  • Resonance Frequency (Fs): 30.87 Hz
  • Qms: 4.132
  • Qes: 0.825
  • Qts: 0.689
  • Mms (Moving Mass): 271.1 g
  • Cms (Compliance): 83.11 μm/N
  • Rms: Not specified
  • Vas: 91.18 L
  • Sd: 855.29 cm²
  • BL Product: 16.42 T·m
  • Sensitivity (SPL): 87.0 dB
  • Xmax: 21 mm
  • Displacement: 0.19 cu ft

Engineering and Construction

  • Optimized suspension for accurate low-frequency reproduction
  • Vented motor for improved cooling
  • Precision-wound 2.5-inch voice coil
  • Durable cone and surround assembly
  • Robust motor designed for consistent high-output performance

Recommended Enclosures

  • Ported: 3.0 cu ft (net)
  • Port Area: 44 sq in
  • Port Tuning: 35 Hz
  • Sealed: Not recommended

Physical Dimensions

  • Cutout Diameter: 13.62 in (346 mm)
  • Outside Diameter: 15.51 in (394 mm)
  • Mounting Depth: 8.01 in (203.5 mm)
  • Motor Height: 3.54 in (90 mm)
  • Net Weight: 46.3 lb
  • Gross Weight: 50.7 lb

Why You Should Buy

  • Powerful low-end performance
  • Dual 2-ohm wiring flexibility
  • Durable, long-lasting construction
  • Designed for precise, impactful bass reproduction
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Warranty Information

Warranty Information

Your new Down4Sound product is covered by 1 limited warranty if purchased from Down4Sound or an authorized Down4Sound dealer. This warranty does not cover improper installation, accidental damage, misuse, abuse, improper wiring, operation of unit outside of listed specifications, or any product that has been modified or repaired by anyone other than Down4Sound. Your warranty covers defects in materials and/or workmanship ONLY and is not an insurance policy. The warranty only covers the original owner of the amplifier.

All warranty returns must be accompanied by the original sales invoice or receipt. You must contact us to request an RMA number prior to sending any returns via the RMA request form on our website. You are responsible for the cost of shipping your product back to us for warranty examination. If your product is covered under warranty, shipping back to you will be at no charge to you – if your product is replaced/repaired outside of warranty you must pay for return shipping and repair bill prior to the return of the product or if no defect is found you are required to pay for return shipping only.

At the sole discretion of Down4Sound your product will be either repaired or replaced when it is being covered under warranty. In the event of shipping damage due to improper packaging on products being returned to Down4Sound the customer is liable for the cost of all damages, necessary repairs, or replacement. Be sure to properly pack your return!

* Extended additional warranty purchased on amplifiers take effect from the date of purchase and must also be stated on original sales invoice or receipt.

Refund/Return Policy: https://www.down4soundshop.com/shipping-returns/

Down4Sound - Hours of Operation

Monday 6am - 9pm PDT
Tuesday 6am - 9pm PDT
Wednesday 6am - 9pm PDT
Thursday 6am - 9pm PDT
Friday 6am - 9pm PDT
Saturday 8am - 4pm PDT
Sunday Closed
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Additional Information

Model:
SB
Ohm:
2
Subwoofer Size:
15
Product Type:
Subwoofer
Subwoofer Type:
DUAL VOICE COIL
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1 Review

  • 5

    Down for sound SB 15 inch subwoofer

    Posted by Randy Paige on Mar 07, 2025

    Good sound quality nicely engineered good quality parts for the price it's excellent

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