Alpine R2-W10D4 with Sealed Enclosure

2250W Peak (750W RMS) 10" R-Series Dual 4-Ohm Car Subwoofer

Shop all Alpine
Only 3 Left!

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (H.A.M.R) Surround
• Impedance: Dual 4 ohms
• Sensitivity: 82.8 dB
• Includes Sealed Enclosure

Learn more about the r2w10d4_10sql
Was $449.99 Details
Thanks , You Pay:


 with warranty

Heads up

We confirm fitment and offer accessories for speakers. Please set your vehicle first if you would like to purchase more than one r2w10d4_10sql.

Set your vehicle or Return to product page
shipping truck icon
FREE 2-day shipping to VA. Get it Tue, Oct. 3
Dollar Icon
VIP Product Get $26.40 in rewards to spend later
In Stock. Only 3 Left!
Brand new

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

For over 23 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award-Winning Service
FREE Shipping Orders $49+
60-Day Easy Returns
Guaranteed Lowest Price
In-House Experts



Authorized dealer

Alpine R2-W10D4 2nd Gen

2250W Peak (750W RMS) 10" R-Series Dual 4-Ohm Car Subwoofer
Quantity: 1

Product Details:

  • 10" Dual 4 ohms Type-R Series Series Subwoofer
  • Power Handling:
    • Peak: 2250 watts
    • RMS: 750 watts
  • Kevlar Reinforced Pulp Paper Cone
  • High-Amplitude Multi-Roll (H.A.M.R) Surround
  • Push-Type Speaker Terminals (Up To 8AWG Wire Size)
  • Oversized Dust Cap
  • 2.6" High Temperature Voice coil
  • 20 mm Xmax
  • 123 oz. Double Stacked Ferrite magnet motor structure
  • Frequency Response: 26 - 200 Hz
  • Resonance Frequency (Fs): 32 Hz
  • Sensitivity: 82.8 dB
  • Sealed box volume: .4 cubic feet - .85 cubic feet
  • Ported box volume: .75 cubic feet - 1.3 cubic feet
  • Top-mount depth: 6"
  • Cutout diameter: 9.6"
  • CTA-2031 Compliant: Yes
  • Authorized Internet Dealer
  • Protective subwoofer grille: Optional (Accessory required and sold separately)
  • 1-year Manufacturer's Warranty

  • Priced Individually

Atrend 10SQL

10" Single Medium Pro Series Sealed Subwoofer Enclosure
Quantity: 1


General Features:

  • 10" Single Medium Pro Series Sealed Subwoofer Enclosure
  • Made in the USA
  • Completely miter and dado end panels
  • Premium carpeted finish
  • Silver spring loaded terminal cups
  • 3/4" MDF construction
  • Glued and braced with fasteners
  • Total box volume: 0.75 cubic feet
  • Dimensions: 10-1/2"D x 13-1/2"W x 13-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Specifications & Details

Subwoofer Specifications
Type-R Series
Subwoofer Size
RMS Power Handling
750 watts
Peak Power Handling
2250 watts
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
High-Amplitude Multi-Roll (H.A.M.R)
82.8 dB
Frequency Response
26 - 200 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Number of Subwoofers
Box Style/Shape
Wood Thickness
Number of Terminals
Terminal Type
Spring posts (banana clip ready)
Box Exterior Color
Box Finish
Enclosure Second Depth
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:

R2-W10D4, 10SQL



Internal SKU:


Internal Product ID:


Customer Ratings & Reviews

5 star
4 star
3 star
2 star
1 star


Customer Photos & Videos

Customer Reviews

Sort by:


Sub Box

The following review is for 10SQL, which is a part of the bundle you are viewing.

I was impressed with the quality of the sub box, I couldn't have made this in my shop for this price. My suggestion would be to change how the wires inside the box mount to the plug.

By Mike on March 26, 2018 checkmarkIcon Verified purchase


found this helpful.

Can't beat the price

The following review is for 10SQL, which is a part of the bundle you are viewing.

Like the negative review, the internal space is actually 0.70 cubic feet which is the exact space recommended for the NVX VCW10 sub. Ordered it for that reason. Seems very well built. Some sort of hard sealant along all the seams. Although the terminal cup doesn't look sealed. Nothing a bead of silicone won't fix. The only negative I have is that the cutout is just slightly too small for my sub. I'll have to trim it. Which sucks, but it beats building a custom box and it's still cheaper than buying the materials yourself. Overall a good looking box.

By SQaudiophile on November 12, 2017 checkmarkIcon Verified purchase


found this helpful.

Excellent box

The following review is for 10SQL, which is a part of the bundle you are viewing.

This is my second Atrend box and won't be my last. Built a lot nicer than most pre-fabbed boxes.

By T. Walker on April 23, 2016


found this helpful.

Excellent Box

The following review is for 10SQL, which is a part of the bundle you are viewing.

Everything arrived timely and as advertised. Easy to install and was almost made for my JL10w3v3-2. Nice dimensions that took up hardly any room the trunk. In fact, my wife didn’t even notice that it was in the trunk after it was all installed! I would recommend this box to anyone who’s subbing specs are close to the manufacturer's cubic feet specs.

By Scott on June 3, 2020 checkmarkIcon Verified purchase


found this helpful.

Perfect for RF P3D4-10s

The following review is for 10SQL, which is a part of the bundle you are viewing.

I noticed a negative review for this enclosure due to the fact that the air space was actually less than advertised (This could be fixed by now. I'm doing this review on mobile so I can't check.) Long story short, I ordered one based on the specs given in that negative review and it's almost perfect specs for a Rockford Fosgate P3 10?. The enclosure is actually the exact amount of airspace needed. I say it's not to spec only because the dimension are slightly different, but I doubt it makes any difference since the airspace is still the exact requirement and it's generally the same shape.

By ANTHONY on December 9, 2016 checkmarkIcon Verified purchase


found this helpful.


The following review is for 10SQL, which is a part of the bundle you are viewing.

Purchased this box based on Sonic's recommendation. Even asked specifically about size before purchasing. Received the product and was exactly what I feared, the inset sides like in the pic throwing dimensions of a box this small way off. The interior dimensions of this box 12x11x9 isn't even .69 cu ft. Only response from Sonic is "oh well we can only go off the manufacturer specs." I expected better from Sonic.

We have reached out to this valued customer and are working to resolve his issue and we are working with Atrend to update the specifications. We will make it right and we in no way want such a sour experience for him or any of our customers. 2016.07.08

By KAPPA KRAZY on July 8, 2016 checkmarkIcon Verified purchase


found this helpful.

Great product!

The following review is for 10SQL, which is a part of the bundle you are viewing.

Very heavy duty box with good post style wire connectors. Would definitely buy again

By Hootie on May 5, 2018


found this helpful.

Atrend 10SQ subbox

The following review is for 10SQL, which is a part of the bundle you are viewing.

Great box! Exactly what was in description. Works great! Good!

By Anonymous on October 2, 2019


found this helpful.

Guinea pig review

The following review is for R2-W10D4, which is a part of the bundle you are viewing.

It seems I'm the only one that bought these from here lol, but you get what you pay for. Yes they are pricey but they are equivalent to infinity Kappa 93ix 6x9 in terms of crisp and clean. These subs are great so far, I bought them about 9 months ago and just put them in. So I can't speak on durability but great wire connectors that's included and the overall sound is great. If you have the extra money, I suggest getting it. I have 2 10's with the nvx 2000 watt amp running in my 71 Superbeetle. I was running a single 400 watt 10 inch Memphis sub with a 400 watt kicker amp, he did his thing and will again in the future. I just wanted to go back to duals in the bug. It's been since my college days. Buy it, only if you have the funds.

By Jay on August 3, 2023 checkmarkIcon Verified purchase


found this helpful.

Well worth it!

The following review is for R2-W10D4, which is a part of the bundle you are viewing.

I always been an Alpine man. I went from an S W10D4 to this R W10D4 and I am very happy I did. Bass is nice and on point. I would buy again!

By Jt on April 26, 2023 checkmarkIcon Verified purchase


found this helpful.


Similar Products

Best selling similar products

Kicker TRTP122 (48TRTP122)

• Sealed downward-firing enclosure with one CompRT 12" subwoofer and passive radiator
• 3/4" medium-density fiberboard construction covered with carpet
• 2-ohm total impedance
• Power Handling: 500 watts RMS (1000 watts peak power)
• Sensitivity: 98 dB
• Frequency Response: 25-500 Hz
• Dimensions: 27-1/2"W x 14-5/8"D x 6-1/8"H



NVX SMW10D4 with Sealed Truck Enclosure

• 700 watts Watts Peak
• 350 watts Watts RMS
• Carbon Fiber Reinforced Polypropylene Cone
• Butyl Rubber Surround
• Includes Depth Extension Clearance Plate
• Includes Sealed Enclosure



Kicker TL7T122 (46TL7T122)

• 12" Solo-Baric Subwoofer in Thin Profile Enclosure
• RMS: 600W / Peak: 1200W
• Square Sub Design Moves 20% More Air Than Round Subwoofers
• Easily Mounts Under or Behind a Seat
• Advanced internal bracing
• Ribbed Santoprene Surround Resists Heat And Degrading



MTX Audio TNE212D Terminator Dual Subwoofer Package

• 400 watts Dual 12" Sealed Subwoofer Enclosure
• Single 4 ohms Impedance
• Spring-loaded Terminal Posts
• Enclosure Dimensions: 11-1/8" TD x 13-1/2" BD x 29-11/16" W x 14" H



Infinity Reference 1000S with Sealed Truck Enclosure

• Peak Power: 800 watts
• RMS Power: 200 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 2 or 4 ohms
• Includes Sealed Truck Enclosure



Related Searches

R2-W10D4, 10SQL small

Item added to your cart.

Price: $263.96

Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)



Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)



Add to cart
NVX Sound Dampening Rubber Roller (SDRLR1)

Universal, Professional Heavy Duty Roller for Sound Damping/Dampening



Add to cart

Add vehicle

Save up to 10 different vehicles in your garage

< Back