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Deal.ai › Rockville › 8 Car Subwoofers
Rockville
Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube

Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube

3.3(3 ratings)

Best price now

$89.95at WalmartChecked Nov 9

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Price facts

  • Last seen at $89.95 at Walmart on Nov 9.

Our take on the Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube

The Rockville RTB80A is an all-in-one bass tube: an 8-inch woofer, a 400-watt built-in amplifier and a tuned enclosure in one cylindrical package. The tube shape and rear aero port are designed to push punchy, deep bass, and the built-in low-pass crossover and bass equalizer let you blend it with your existing speakers. It suits drivers who want added low end without building a custom box or buying a separate amp. Against component subwoofer setups it trades maximum output and tuning flexibility for simple install and a compact footprint.

Best forDrivers adding bass to a factory systemSimple installs without a separate ampSmall cars and tight cargo spacesPunchy bass on a budget
Pros
  • Amp, woofer and enclosure come matched in one unit
  • Built-in low-pass crossover to blend with door speakers
  • Bass boost equalizer for dialing in output
  • Cylindrical ported design aims for punchy bass
  • Compact 8-inch size fits small vehicles
Cons
  • 400 watts is peak-style marketing power, not RMS
  • 8-inch driver limits very deep, loud output
  • Bass boost can muddy sound if overused
  • No remote level control mentioned

Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube prices at every store

  • WalmartNew

    In stockSold by AudiosavingsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $89.95Free shippingChecked Nov 9
    Visit Walmart

About the Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube

The Rockville RTB80A is a powered subwoofer in a tubular enclosure. It combines an 8-inch woofer, a built-in amplifier and a vented tube in one unit, so it needs no separate amp or box. The amplifier, subwoofer and enclosure are matched to work together.

The cylindrical enclosure has a tuned rear aero port. The woofer face and the port both put out bass. The tube is covered in aviation grade tweed with an embroidered logo, and a molded steel grill protects the woofer.

An electronic low pass crossover lets you blend the subwoofer with the rest of your audio system. A built-in bass equalizer adds up to 18 dB of boost at 45 Hz. To install it, connect power, ground, remote and a signal. It can be placed in different positions, including corner load, rear load or front load. Steel mounting brackets and canvas straps with Velcro fasteners hold it in place without permanent installation.

Woofer
8" high power woofer
Power
400 watts peak, 200 watts RMS
Amplifier
Built-in, rated 250 watts RMS
Enclosure
Vented tube with rear aero port
Inputs
Speaker level and RCA line level
Frequency response
30Hz-200Hz
Sensitivity
105 dB
Crossover
Adjustable electronic low pass
Bass boost
Up to 18 dB at 45 Hz
Grill
Molded steel
Cover
Aviation grade tweed with embroidered logo
Mounting
4 steel mounting brackets, 2 canvas straps with Velcro fasteners
Dimensions
8.75" x 19"
Color
Black

Specifications

color
BlackSource
size
8"Source

Questions and answers

Does it need a separate amplifier?
No. The amplifier is built into the tube, so you feed it power and a signal and it drives the 8-inch woofer itself.
How do I connect it to a factory radio?
It takes a line-level or speaker-level signal depending on your head unit; a factory radio without subwoofer outputs usually needs a line output converter.
Can I adjust how much bass it adds?
Yes. There is a built-in low-pass crossover and a bass equalizer with boost, so you can tune the low end to match your speakers.
Will it fit in a small car?
The tube format is compact for an 8-inch powered sub, but measure your cargo area first since tubes are long and round.
Is 400 watts enough for a full system?
It adds noticeable low end to a factory setup, but it will not match a large separate subwoofer and amp for maximum volume.
Where is the Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube cheapest?
At Walmart, for $89.95, as of our latest check.
What do buyers say about the Rockville RTB80A 8" 400 Watt Powered Subwoofer Bass Tube?
Rated 3.3 out of 5 from 3 ratings.

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