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RE Audio RT Pro 8D4

210W 8" RT Pro Series Dual 4 Ohm Subwoofer

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• RMS Power: 210W
• Dual 4 ohm Voice Coil
• Mica Filled Polypropylene Cone
• Santoprene Rubber Surround
• Pressed Steel Basket
• Linear Conex Spiders
• Spade Terminals

Learn more about the rtpro8d4

We apologize

This item has been discontinued

Product Highlights


• RMS Power: 210W
• Dual 4 ohm Voice Coil
• Mica Filled Polypropylene Cone
• Santoprene Rubber Surround
• Pressed Steel Basket
• Linear Conex Spiders
• Spade Terminals

Description


RE Audio brand icon

Authorized dealer

General Features:

  • 8" Dual 4 Ohm RT Pro Series Subwoofer
  • Power Handling:
    • RMS: 210 watts
  • Mica filled polypropylene cone
  • Santoprene rubber surround
  • FEA Optimized motor structure
  • Linear conex spiders
  • Pressed steel basket
  • Spade terminals
  • High temperature 8-layer voice coil
  • Single magnet
  • Resonance Frequency (Fs): 22.8 Hz
  • Top-mount depth: 4.9"
  • Sensitivity: 85.9 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 RE Audio RT Pro 8D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 RE Audio RT Pro 8D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 RE Audio RT Pro 8D4 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 RE Audio RT Pro 8D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
RT Pro Series
Subwoofer Size
8"
RMS Power Handling
210 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohms
Sensitivity
81 dB
Xmax (millimeters)
12 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
Santoprene Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.3 cubic feet
Optimum Sealed Box Volume
0.35 cubic feet
Minimum Ported Box Volume
0.35 cubic feet
Optimum Ported Box Volume
0.50 cubic feet
Top-Mount Depth (Mounting Depth)
4.9"
Cutout Diameter
8.7"
Shallow Mount Installation
No
Electromechanical Parameters
Free-Air Resonance (Fs)
22.8 Hz
Equivalent Compliance (Vas)
27.1 liters
Total Speaker Q Value (Qts)
0.34
Electrical Q Value (Qes)
0.38
Electrical Resistance of Voice Coil (Re)
3.2 ohms
Mechanical Q Value (Qms)
4.21
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

RT Pro 8D4

Weight:

12.50lbs

Internal SKU:

rtpro8d4

Internal Product ID:

68103

Product and How-to Videos


  • RE Audio New Product Line Overview | CES 2015
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews



5 star
43%
4 star
57%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
4.7
Features
4.3
Design
4.5
Usability
4.7

Customer Reviews

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great sevice

RE Audio 8 " subs works great and gives you big sound .

By bass on February 28, 2014

14

found this helpful.

great sevice

Re audio 8 " subs works great and gives you big sound .

By bass on February 28, 2014

13

found this helpful.

Slams in T-line

Owned this for several months from a local carrier.
in a custom built T-line in my home system on a 150wrms@8ohms monoblock. It literally knocks things off the shelves, its ridiculous.

By J35u5fchr157 on June 16, 2013

13

found this helpful.

Solid Speaker! Good value

I got these and, after having a word with RE Audio representatives about designing an appropriate enclosure, I gave them a try. While they're not the beefiest or loudest 8" subs, they are an excellent value. For your money, you'll get some legitimate volume out of them. Dont expect high-end features like, spring loaded push terminals or cast basket. But, if you're looking for big sound on a low budget... A pair of these may just be the ticket for you.

By Kurt on November 5, 2013

9

found this helpful.

Super nice, good price!

For the price and size I haven’t heard much better out of a 8” hits hard as long as it has the right box and watts

By Lynn on September 1, 2020

1

found this helpful.

Great sq sub

I have felt with Jl I'd mix Polk and many other hi-end audio brands. a lot of buyers give a review but don't compare the product with others to give the buyers a good outlook. I like this sub as a great all-around sub very musical handles the power really well. I listen to a lot of r&b Jazz blues and it plays them well I am using a .5 ported for each 8 tuned at 35 Hz really great all-around sub I have used I'd v4 8 they are real close re is a little louder I'd are real smooth and loud throughout the musical slope. I hope this helps

By 418 on February 14, 2021

Great sq sub

I have felt with Jl I'd mix Polk and many other hi-end audio brands. a lot of buyers give a review but don't compare the product with others to give the buyers a good outlook. I like this sub as a great all-around sub very musical handles the power really well.I listen to a lot of r&b Jazz blues and it plays them well I am using a .5 ported for each 8 tuned at 35 Hz really great all-around sub I have used I'd v4 8 they are real close re is a little louder I'd are real smooth and loud throughout the musical slope. I hope this helps

By 418 on February 14, 2021

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