Black Diamond Car Audio 15-Inch Subwoofer 4 Ohm DVC with 2550W Monoblo — Big Jeff Audio Dealer Platform
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Black Diamond 15" 600W 4Ohm DVC Subwoofer + 2550W Monoblock Class D Amplifier

The DIA-15D4 delivers 600W Max Power with 300W RMS at Dual 4+4 Ohm, once you hear it, you will finally realize what big, rich bass sounds like. This 15" Subwoofer puts out all of the power you need and handles low frequencies like a sub twice the price. Dual Voice Coil provides multiple options and flexibility to wire Parallel, Series, or Independent. DVC will make sure you get the most from your system. Settle for nothing but the best with Ferrite magnets that produce a wider range of tones and can handle tremendous power at high volumes. What more can you ask for?

Capable of 2550 Watts Max with high efficiency, The DIA-2550.1D gives you the best of both worlds. You'll have all the power you need while utilizing state-of-the-art technology that requires less energy. Push an amazing amount of power to your system while only drawing minimal power from your vehicle's battery. This Black Diamond amplifier comes with a remote bass knob included. Always have control over the bass levels depending on what genre music you're listening to.

This listing includes:

- (1) Black Diamond 15? Subwoofer DIA-15D4
- (1) Black Diamond Monoblock Amplifier DIA-2550.1D
- (1) Black Diamond Remote Bass Knob
- Includes mounting hardware and manuals.


- Nominal Diameter: 15" (381mm)
- Nominal Impedance: 4+4 Ohm
- RMS Power Handling: 300 Watts
- MAX Power Handling: 600 Watts
- Sensitivity: (1w/1m) 91 dB
- Frequency Response: 25Hz ~ 250Hz
- Recommended Lo Pass Crossover: 80Hz


- Voice Coil Diameter: 2" (50.8mm)
- Voice Coil Former Material: Black Aluminum
- Winding Material: SV
- Cone Material: Non-Pressed Paper
- Dust Cap: Paper
- Surround Material: Foam
- Basket Material: Steel
- Basket Color: Black
- Magnet Material: Ferrite
- Magnet Weight: 59 oz
- Displacement Volume: 2.9L / 0.1ft?

- Equivalent Volume: Vas 119L / 4.2ft?
- Excursion: Xmax 16.74mm
- Free Air Resonance: 40 Hz
- Mechanical Factor: Qms 2.778
- Electrical Factor: Qes 0.97
- Total Factor: Qts 0.719
- Moving Mass: Mms 140.316g
- Compliance: Cms 0.108mm/N
- Bl Factor: BL 15.4
- Voice Coil Inductance: Le 1.564 mH
- Diaphragm Area: Sd 834.69 cm?
- Dc Resistance: Re 3.2+3.2 Ohm
- Efficiency Bandwidth: Product EBP 41.2


- Overall Diameter: 15.3"
- Overall Depth: 7.25"
- Front Mount Baffle Cutout: 13.7"
- Mounting Depth: 6.32"
- Motor Diameter: 6.1"



- Total Watts (Peak): 2550 Watts
- RMS Power 4 ohm: 350 Watts x 1
- RMS Power 2 ohm: 600 Watts x 1
- RMS Power 1 ohm: 900 Watts x 1


- Frequency Range: 20Hz ~ 500Hz
- Signal to Noise Ratio: >90dB
- Total Harmonic Distortion (THO): 0.3%
- Low Level input Range: 0.25 ~ 6V

Payment Information


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valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

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U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
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Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
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full to have the package sent back to you or we can refund the money
minus the cost of shipping


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please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

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If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.