RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
Need an honest opinion? We're HERE
Schedule a Consultation
📞 1-877-417-9000 ✉️ hello@dreamediaav.com
Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each) - Dreamedia AV
RBH Sound

RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each)

RBH Sound

Quantity

Quick answers from real humans

Expert help

877-417-9000 Hannah

Description

Unmatched Power and Precision

The RBH Sound UNRIVALED 21-SF/R Subwoofer takes bass to the next level—deep, powerful, and felt as much as it’s heard. With cutting-edge design and engineering, it delivers breathtaking low-end impact that transforms music, movies, and gaming into a fully immersive experience.

Estimated Lead Time

4 to 6 weeks

Only Gear We’d Put in Our Own Setups

60-Day Hassle-Free Returns

Real support from real humans in the USA

RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each)
    Need Help Deciding?
    Dreamedia Plus

    Authorized Dealer

    Product Features

    Free Shipping Nationwide
    No Hassle 30 Days Return
    Price Assurance
    Dream Team
    Preferred Installers

    Description

    Unmatched Power and Precision

    Get ready to feel your audio. The RBH Sound UNRIVALED 21-SF/R isn’t just a subwoofer—it’s an experience. With a massive 21-inch carbon fiber driver, this powerhouse delivers bone-rattling bass, incredible dynamics, and jaw-dropping depth that brings movies, music, and games to life.

     

    Engineered for Impact

    Built with premium materials, advanced DSP control, and a 4,000-watt Class-D amplifier, the 21-SF/R combines raw power with precision tuning. From thunderous lows to tight, clean mid-bass, every detail is engineered for accuracy, clarity, and pure performance.

     

    Crafted to Last

    Featuring a reinforced cabinet, acoustic damping system, and customizable finishes, the 21-SF/R is as durable as it is stunning. Whether you want reference-level cinema bass or audiophile-grade depth, this subwoofer is the centerpiece your system deserves.

     

    Key Features

    • 21-inch carbon fiber driver with 38mm Xmax
    • 4,000-watt Class-D amplifier with DSP control
    • Frequency extension down to 10Hz
    • Reinforced, acoustically optimized cabinet
    • Custom finish options for any room
    General Specifications
    ModelUNRIVALED 21-SF/R
    TypeUltimate Subwoofer System
    ApplicationSuitable for both movies and music listening
    OutputTight and accurate
    ConstructionBuilt with the highest quality materials
    Manufacturer CollaborationPierce Audio
    Manufacturing LocationHand-built in the Pacific Northwest since 2004
    InnovationGroundbreaking low-distortion design
    PerformanceCapable of extracting every ounce of performance
    ResilienceEngineered for high quality and resilience
    UsageSuitable for most any application
    Driver Specifications
    Size21 inch
    MaterialCarbon fiber cone
    FeaturesMassive cast aluminum basket Half-roll rubber surround 38mm Xmax (one-way linear travel) 50mm Xmech (one-way mechanically limited travel) Eight neodymium slugs for the magnet Magnetic flux of 35 Tesla Meters 4
    HDF)
    Dimensions43

    Reviews

    There are no reviews yet.

    Be the first to review “RBH Sound UNRIVALED 21-SF/R ULTIMATE SUBWOOFER SYSTEM (Each)”

    Watch It in Action

    See All
    Recommended Gear

    Complete Your Setup

    Curated products to complete your setup.

    SVS Soundpath Tri-Band Wirless Audio Adapter

    SVS Soundpath Tri-Band Wirless Audio Adapter

    $199.99

    InfoDiscontinued
    SVS Soundpath Tri-Band Receiver

    SVS Soundpath Tri-Band Receiver

    $199.99

    InfoAdd to Cart
    Marantz SR7015 AV Receiver

    Marantz SR7015 AV Receiver

    InfoDiscontinued
    Marantz SR6015 AV Receiver

    Marantz SR6015 AV Receiver

    InfoDiscontinued
    Marantz SR5015 AV Receiver

    Marantz SR5015 AV Receiver

    InfoDiscontinued
    Dreamedia Gold Theater Package

    Dreamedia Gold Theater Package

    $20,460.20

    InfoCall to Purchase

    Customer Support Module

    Free Shipping on Most Orders

    60-Day Hassle-Free Returns

    Expert Support via Text or Chat — Anytime

    Pro Audio Gear Curated by Home Theater Specialists

    Book a Consultation

    Fast and Simple

    30K+

    Happy Customers

    100% Expert-Curated Gear

    We hand-pick every product based on real-world performance — no guesswork, no filler.

    We design, build, and use home theaters ourselves.

    We’re not just a store — we’re fans, builders, and listeners too.

    "Great experience ordering a Stewart Firehawk G5 screen for my basement theater room from Dreamedia! Kellen helped me out on the order. He was very helpful in answering questions, making..."... click to read more
    Noah Batterson
    "Zack was generally helpful during the process. I can't go 5/5 though because it took..." ... click to read more
    ★★★★★
    Noah Batterson
    Michael Kamm
    "I am very happy with the services that I received from Dreamedia. These guys..." ... click to read more
    ★★★★★
    Michael Kamm
    ross hammonds
    "Won’t find better people to deal with!"
    ★★★★★
    ross hammonds
    L Phillips
    "I recently bought a Epson projector and Dragonfly screen from Zach at Dreamedia and cannot..." ... click to read more
    ★★★★★
    L Phillips
    Artie Trotter
    "Found Dreamedia by watching their youtube videos. My initial thoughts were: since they had..." ... click to read more
    ★★★★★
    Artie Trotter
    Lance Carlson
    "Dreamedia and Zach were a pleasure to work with. Zach took the time to..." ... click to read more
    ★★★★★
    Lance Carlson
    Thomas W. Hutson IV
    "The whole crew at DreaMedia is awesome. Zach called back very quickly after leaving a..." ... click to read more
    ★★★★★
    Thomas W. Hutson IV
    Alarick Wright
    "I had planned to order a pair of Perlisten R5Ms, but got a great deal..." ... click to read more
    ★★★★★
    Alarick Wright
    Kirk Adams
    "Kellen was awesome to work with. Honest and very helpful I would highly recommend him"
    ★★★★★
    Kirk Adams
    Javi Fer
    "Dreammedia was quick to answer all my questions plus recommended solution to my specific needs...." ... click to read more
    ★★★★★
    Javi Fer
    The Gypsy Dinner
    "I've been using Zach and his team ever since my original AV installer left town..." ... click to read more
    ★★★★★
    The Gypsy Dinner
    Paul Zanno
    "Upgraded our older theater room and Zack and the team did a super job from..." ... click to read more
    ★★★★★
    Paul Zanno
    Noah Batterson
    "Zack was generally helpful during the process. I can't go 5/5 though because it took..." ... click to read more
    ★★★★★
    Noah Batterson
    Michael Kamm
    "I am very happy with the services that I received from Dreamedia. These guys..." ... click to read more
    ★★★★★
    Michael Kamm
    ross hammonds
    "Won’t find better people to deal with!"
    ★★★★★
    ross hammonds
    L Phillips
    "I recently bought a Epson projector and Dragonfly screen from Zach at Dreamedia and cannot..." ... click to read more
    ★★★★★
    L Phillips
    Artie Trotter
    "Found Dreamedia by watching their youtube videos. My initial thoughts were: since they had..." ... click to read more
    ★★★★★
    Artie Trotter
    Lance Carlson
    "Dreamedia and Zach were a pleasure to work with. Zach took the time to..." ... click to read more
    ★★★★★
    Lance Carlson
    Thomas W. Hutson IV
    "The whole crew at DreaMedia is awesome. Zach called back very quickly after leaving a..." ... click to read more
    ★★★★★
    Thomas W. Hutson IV
    Alarick Wright
    "I had planned to order a pair of Perlisten R5Ms, but got a great deal..." ... click to read more
    ★★★★★
    Alarick Wright
    Kirk Adams
    "Kellen was awesome to work with. Honest and very helpful I would highly recommend him"
    ★★★★★
    Kirk Adams
    Javi Fer
    "Dreammedia was quick to answer all my questions plus recommended solution to my specific needs...." ... click to read more
    ★★★★★
    Javi Fer
    The Gypsy Dinner
    "I've been using Zach and his team ever since my original AV installer left town..." ... click to read more
    ★★★★★
    The Gypsy Dinner
    Paul Zanno
    "Upgraded our older theater room and Zack and the team did a super job from..." ... click to read more
    ★★★★★
    Paul Zanno
    Why Choose Us?

    Why Thousands Trust Dreamedia

    Trusted by thousands for our service and expertise

    Reviews

    30M+ VIEWS ON YOUTUBE

    Most of our customers discover us through our videos — and stay for the experience.

    15+ YEARS OF INDUSTRY EXPERTISE

    Helping families and businesses build the perfect home theater since day one.

    NATIONWIDE INSTALLATIONS & PERSONAL SUPORT

    From coast to coast — with real humans, not scripts.

    4.9/5 CUSTOMER RATING

    We’re proud of the trust we’ve earned. Just check the reviews.

    Reviews

    Reviews

    Excellent

    Reviews

    ★★★★★

    Fast & Excellent

    "Can't put into words how happy I am for choosing to buy from these guys...."

    Rhys Bartlett
    ★★★★★

    Excellent Service

    "I’ve followed Dreamedia on YouTube for many years and have also had family members buy..."

    BJ Broderick
    ★★★★★

    Excellent Service

    "Great stop for all home theater needs and wonderful service"

    Gunnu

    FAQ

    Have more questions?
    Reach out any time

    How long are the lead times on orders?

    Lead times generally take 3-5 days to ship and arrive. However, there are several items that may have unique ordering and freight conditions that vary.

    Do you offer in-depth consultations?

    Yes! You can schedule a free consultation under our Contact page.

    Do you offer bundles?

    We have bundles that can be a one size fits most. However, we would prefer to schedule a consult to talk through your exact project. Determining what is best for your space, timeline and budget.

    Can you install my system?

    Depending on location, there is a good chance one of our preferred partners can do the installation. We have over 20+ installers in our network across the country.