JTR Captivator 4000ULF Subwoofer - Dreamedia AV
JTR

JTR Captivator 4000ULF Subwoofer

JTR

Quantity

Price

$5,699.00

Quick answers from real humans

Expert help

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

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”

Your email address will not be published. Required fields are marked *

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

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.

"Seen Zach on Youtube and loved his enthusiasm for home theater. For years my AV equipment has been housed on an old TV stand looking real "jankey". Seen..."... click to read more
Dee Gates
"If you’re ever in the need for home media, this is the place. Every single..." ... click to read more
Dee Gates
Luke Weckwerth
"Excellent service quick to respond with answers to all your questions. Will buy from them..." ... click to read more
Luke Weckwerth
Artie Trotter
"Found Dreamedia by watching their youtube videos. My initial thoughts were: since they had..." ... click to read more
Artie Trotter
BuckNuts45
"Quick response and shipping! Thanks!"
BuckNuts45
Lucas Henry
"Can’t go wrong with Dreamedia!"
Lucas Henry
Jeff Gray
"Very knowledgeable people, great prices. Treat you as like family. Always reply to questions you..." ... click to read more
Jeff Gray
NYCLJ34
"Anytime I need anything Zack is always available to help. Dreamedia has great prices..." ... click to read more
NYCLJ34
Immortal Origin
"Love the sound, excellent service. Very professional setup."
Immortal Origin
Marcel Burrell
"I found these guys through YouTube when I was doing research for my game room..." ... click to read more
Marcel Burrell
Joseph Weatherly
"Great experience ordering a Stewart Firehawk G5 screen for my basement theater room from Dreamedia!..." ... click to read more
Joseph Weatherly
Bram Hechtkopf
"I bought an amp for my subs. The amp arrived quickly and the performance is..." ... click to read more
Bram Hechtkopf
Alvin Ellis
"David was Great! He walked we through every step of my purchase and has followed..." ... click to read more
Alvin Ellis
Dee Gates
"If you’re ever in the need for home media, this is the place. Every single..." ... click to read more
Dee Gates
Luke Weckwerth
"Excellent service quick to respond with answers to all your questions. Will buy from them..." ... click to read more
Luke Weckwerth
Artie Trotter
"Found Dreamedia by watching their youtube videos. My initial thoughts were: since they had..." ... click to read more
Artie Trotter
BuckNuts45
"Quick response and shipping! Thanks!"
BuckNuts45
Lucas Henry
"Can’t go wrong with Dreamedia!"
Lucas Henry
Jeff Gray
"Very knowledgeable people, great prices. Treat you as like family. Always reply to questions you..." ... click to read more
Jeff Gray
NYCLJ34
"Anytime I need anything Zack is always available to help. Dreamedia has great prices..." ... click to read more
NYCLJ34
Immortal Origin
"Love the sound, excellent service. Very professional setup."
Immortal Origin
Marcel Burrell
"I found these guys through YouTube when I was doing research for my game room..." ... click to read more
Marcel Burrell
Joseph Weatherly
"Great experience ordering a Stewart Firehawk G5 screen for my basement theater room from Dreamedia!..." ... click to read more
Joseph Weatherly
Bram Hechtkopf
"I bought an amp for my subs. The amp arrived quickly and the performance is..." ... click to read more
Bram Hechtkopf
Alvin Ellis
"David was Great! He walked we through every step of my purchase and has followed..." ... click to read more
Alvin Ellis
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

"I hardly ever write reviews, but wanted to share my experience with Zack and Dreamedia...."

Wayne Sewal

Outstanding Installation

"living in ireland i cant avail of their install service but when i reached out..."

markie4tv

Excellent Work

"I had a pleasure to work with dream media and they helped me design a..."

Eduardo Tafolla

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.