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Boss D40.2

4" 2-way Diablo Series Speakers (D402)

4.0

(2 reviews)

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The product on this page is discontinued.

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  • 4" Diablo Series Car Speakers
  • Power Handling:
    • Peak: 250 watts per pair / 125 watts each
    • RMS: 120 watts per pair / 60 watts each
  • Poly-injection cone woofer
  • Rubber surround
  • 1" Mylar dome tweeter
  • 4 ohms impedance
  • 1" Aluminum voice coil
  • 25oz. Magnet
  • 1-year Manufacturer's warranty

Priced Per Pair

Product History:
Boss D40.2 thumbnail
(newest, current model)
Boss GT422 thumbnail
(previous model, replaced by Boss D40.2)
Boss R422 thumbnail
(previous model, replaced by Boss GT422)
Speaker Specifications
Speaker Size4"
Design2-way
Tweeter DesignDome
Tweeter CompositionMylar
Woofer CompositionInjection Molded Polypropylene (IMPP)
Woofer SurroundRubber
Peak Power Handling125 watts
RMS Power Handling60 watts
Sensitivity90 dB
Frequency Response85 - 20000 Hz
Impedance (Per Voice Coil)4 ohms
Shallow Mount InstallationN/A
Top-Mount DepthN/A
Bottom-Mount DepthN/A
Cutout DimensionsN/A
Speaker GrillesYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Boss D40.2
Average Customer Rating is 4.0 out of 5 stars:
4.0
based on 2 Reviews
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Rating Distribution:
5 star:
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0%
4 star:
.
100%
3 star:
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0%
2 star:
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0%
1 star:
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0%
what's this?
Average Attributes Rating:
Durability
4.5
Value
5.0
Features
4.0
Design
5.0
Usability
4.5
what's this?
Most Helpful Customer Reviews:
March 17, 2010 there loud!!!
Review by
Pdreezy from Redwood city Ca
Overall
Durability
Value
Features
Design
Usability
I got these for my motorcycle and for the price there perfect... there really loud! and they gotten wet but a few days later they work like new!
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June 27, 2009 Decent Speakers
Review by
Cam D from Soho, MA
Overall
Durability
Value
Features
Design
Usability
These were good at first when I got them, I had about 30 Watts RMS going to them from a Soundstorm 4 Channel amp. I had 2 sets in the back back of my explorer (custom) and they were goin strong, but then one speaker blew. Now that was my fault. One day when I was testing them out, I accidentally switched them off of high pass to low pass and the bass blew out one of them. I really like these speakers, but just watch your settings and bass. And I'm also not sure if I'd put 60 Watts RMS to each one. Maybe 40 tops?
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Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.		$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.		$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.		$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!		$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.		$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!		$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.		$15.99
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
 ProductPriceAdd?
3/4" Depth Extender for 4" Speakers3/4" Depth Extender for 4" Speakers
Add 3/4" of extra space when installing your speakers.		$6.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!		$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.		$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!		$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!		$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

Product Summary

Manufacturer: Boss
Model number: D40.2
UPC: 791489108416
Weight: 3.00 lbs
Internal SKU: d402
Internal product ID: 11907

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Customer Testimonial

I asked the staff what I needed to finish my car and they quickly responded. A week later and without any snags my system is running perfectly! Thanks guys! Great prices and great staff! Will do business again!

- Cfareri31 from NJ

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