JTR Captivator 4000ULF Subwoofer - Dreamedia AV
Need an honest opinion? We're HERE
Schedule a Consultation
📞 1-877-417-9000 ✉️ hello@dreamediaav.com
Dreamedia AV
Dual 10-inch subwoofer in a sleek black cabinet, ideal for enhancing sound in home theater systems.
Dual 10-inch subwoofer in a sleek black cabinet, ideal for enhancing sound in home theater systems.
Black speaker cabinet designed for high-quality sound in home theater settings. Compact design for versatile placement.
Black home theater subwoofer with connectivity panel, designed to enhance audio experience in modern setups.
JTR

JTR Captivator 4000ULF Subwoofer

JTR

Quantity

Price

$5,699.00

Quick answers from real humans

Expert help

877-417-9000 Hannah

Description

JTR Captivator 4000ULF is a bass-reflex subwoofer with dual 18-inch drivers and a 4000 W DSP-controlled amplifier that delivers deep, strong low-end output down into the lowest audible ranges. Built with a heavy Baltic birch cabinet and front-firing design, it brings massive, controlled bass to home theater and music systems.

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

JTR Captivator 4000ULF Subwoofer

$5,699.00

Need Help Deciding?

Authorized Dealer

Product Features

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

Description

Built for the Lowest Notes That Matter

If you want bass that shows up when most subs fall off, the Captivator 4000ULF is built for that job. With dual 18-inch drivers in a low-tuned bass-reflex cabinet, it delivers real weight down where sound turns physical. It hits hard, stays composed, and doesn’t blur when scenes get heavy.

Power That Keeps Its Grip

A 4000 W RMS DSP-controlled amplifier gives you the headroom to push without sag. The huge slot port keeps airflow clean so output stays strong instead of compressed. You get deep pressure with control, not boom.

Heavy Build, Easy to Dial In

The cabinet is thick Baltic birch with heavy bracing, so vibration stays out of the picture. Everything fires forward for flexible placement. With XLR and RCA inputs, auto turn-on, trigger support, and LF adjust, setup is straightforward and predictable.

Key Features

  • Dual 18-inch high-excursion drivers

  • 4000 W RMS Class-D amplifier with DSP

  • Bass-reflex design tuned for very deep output

  • Strong in-room performance into single digits

  • Large slot port to reduce turbulence

  • Front-firing cabinet for flexible placement

  • Balanced XLR and RCA connectivity

  • Heavy Baltic birch cabinet construction

Reviews

There are no reviews yet.

Be the first to review “JTR Captivator 4000ULF Subwoofer”
Specifications
Frequency +/- 3db10.5-125hz
Amplifier4000 watts RMS
Dimensions (HxWxD)41″ x 20.5″ x 39.5″ (HxWxD), only 20.5″ deep sideways
Shipping Weight (Less Pallet)265 lbs
Construction18mm, 13ply, void free, Baltic Birch (several times stronger and more expensive than MDF)
Exterior FinishMatte Black Paint
ConnectorsRCA and XLR
Warranty5 year Manufacturer defect (amplifier 3 year)

Sub-10 Hz Output That Shows Up

This sub goes deeper than most for real infrasonic output that you feel, not just hear. The dual eighteen-inch design and low tune point let it move serious air below 20 Hz without flopping around.

DSP Keeps It Practical

The built-in DSP with auto input and low noise floor keeps response clean and consistent. Even when you’re pushing big levels, you don’t get the distortion or harshness some big subs show.

Built to Fit Real Systems

With its heavy cabinet, front-firing layout, and multiple input options, the 4000ULF integrates into real theaters without a lot of guesswork. It stays quietly out of the way while delivering the kind of low-end power that changes the way a room feels.

Error: No items found matching your criteria. Note: Found 1 items, but none had featured images.
Recommended Gear

Complete Your Setup

Curated products to complete your setup.

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
Don Nelson
"Absolutely the best customer service I've had in quite some time! I was shopping..." ... click to read more
★★★★★
Don Nelson
Bram Hechtkopf
"I bought an amp for my subs. The amp arrived quickly and the performance is..." ... click to read more
★★★★★
Bram Hechtkopf
Whitney Grider Ellis
"Highly knowledgeable team! The products are unmatched and the commitment to the best is unbeatable!..." ... click to read more
★★★★★
Whitney Grider Ellis
Joseph Weatherly
"Great experience ordering a Stewart Firehawk G5 screen for my basement theater room from Dreamedia!..." ... click to read more
★★★★★
Joseph Weatherly
Arthur Morris
"I purchased and had Dreamedia professionally install: Jvc rs3000 nx9 Klipsch THX Dolby digital atmos 5.4.1 Denon 8500..." ... click to read more
★★★★★
Arthur Morris
Scott Lemke
"Great prices and outstanding customer service. What more could you ask for? If you have..." ... click to read more
★★★★★
Scott Lemke
Shawn McKinnon
"Awesome! The HDMI cables that came with the Terra Prime players (Kaleidescape Terra Prime Bundle),..." ... click to read more
★★★★★
Shawn McKinnon
Abel Thermidor
"Dreamedia Rocks!! Prompt responses, polite and professional staff. Definitely a pleasure. Love my new rack!..." ... click to read more
★★★★★
Abel Thermidor
John Flores
"Seen Zach on Youtube and loved his enthusiasm for home theater. For years my..." ... click to read more
★★★★★
John Flores
Maximiliano Gomez
"I have never received better service from anyone in my entire life nor met two..." ... click to read more
★★★★★
Maximiliano Gomez
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
NYCLJ34
"Anytime I need anything Zack is always available to help. Dreamedia has great prices..." ... click to read more
★★★★★
NYCLJ34
Don Nelson
"Absolutely the best customer service I've had in quite some time! I was shopping..." ... click to read more
★★★★★
Don Nelson
Bram Hechtkopf
"I bought an amp for my subs. The amp arrived quickly and the performance is..." ... click to read more
★★★★★
Bram Hechtkopf
Whitney Grider Ellis
"Highly knowledgeable team! The products are unmatched and the commitment to the best is unbeatable!..." ... click to read more
★★★★★
Whitney Grider Ellis
Joseph Weatherly
"Great experience ordering a Stewart Firehawk G5 screen for my basement theater room from Dreamedia!..." ... click to read more
★★★★★
Joseph Weatherly
Arthur Morris
"I purchased and had Dreamedia professionally install: Jvc rs3000 nx9 Klipsch THX Dolby digital atmos 5.4.1 Denon 8500..." ... click to read more
★★★★★
Arthur Morris
Scott Lemke
"Great prices and outstanding customer service. What more could you ask for? If you have..." ... click to read more
★★★★★
Scott Lemke
Shawn McKinnon
"Awesome! The HDMI cables that came with the Terra Prime players (Kaleidescape Terra Prime Bundle),..." ... click to read more
★★★★★
Shawn McKinnon
Abel Thermidor
"Dreamedia Rocks!! Prompt responses, polite and professional staff. Definitely a pleasure. Love my new rack!..." ... click to read more
★★★★★
Abel Thermidor
John Flores
"Seen Zach on Youtube and loved his enthusiasm for home theater. For years my..." ... click to read more
★★★★★
John Flores
Maximiliano Gomez
"I have never received better service from anyone in my entire life nor met two..." ... click to read more
★★★★★
Maximiliano Gomez
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
NYCLJ34
"Anytime I need anything Zack is always available to help. Dreamedia has great prices..." ... click to read more
★★★★★
NYCLJ34
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

★★★★★

Excellent Service

"Dreamedia is the most knowledgeable in the home theater business. Top notch service and expert..."

Kelsey Johnson
★★★★★

Excellent Service

"Responsive and friendly service. Good price. Took about a day longer than expected. But pandemic..."

Middleton O'Malley
★★★★★

Excellent Service

"Phenomenal experience purchasing equipment from Dreamedia! Fast shipping, excellent prices and great customer service!"

Roy Tate

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.