RS65-SUBD4
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
SKU: RS65-SUBD4
For 15 years, PRV Audio has developed and marketed live PRO audio speakers, and is thrilled to introduce the RS Series bringing new Subwoofers, amplifiers and car speakers with high-fidelity sound and performance for your everyday car system, specifically designed and developed for the car audio market.
Small and powerful, this 6.5″ car subwoofer RS65-SUB delivers hard hitting bass. This sub was engineered and built with performance in mind, for compact pickup trucks, or any car you want to put a subwoofer in without sacrificing trunk space.

- Optimized for use in compact enclosures this subwoofer is ideal for under or behind seat truck boxes
- 4 layer high-temperature copper voice coil capable of handling 300 watts RMS program power, which makes high acoustic output
- High roll U surround gives an 8.75 mm of Xmax for low bass reproduction without any issues
- Side forced cooling system with vented back plate design for better heat dissipation
- Dual 4 Ohm, easy setup to connect two subs in parallel to 1 ohm

Its shallow profile takes up very little space inside any enclosure. This compact design still focus on performance, maximizes the excursion capability by creating an equal distance between the cone, spider and bottom plate.
In this mighty 6.5″ sub, can reach 0.82″ peak to peak excursion before damage! Which allows for deep low frequency bass!
PRV 6.5” Car Subwoofer RS65-SUB Dual 4 Ohm 300 Watts Shallow Sub
Recommended Amplifier configurations:
- 1 Subwoofer – 1x RS500 BASS 2 Ohm, one sub in parallel
- 2 Subwoofers – 1x RS500 BASS 1 Ohm, both subs in parallel
- 4 Subwoofers – 1x RS900 BASS 2 Ohm, 4 subs in series/parallel
The LPF on amplifiers should be set between 80 – 120 Hz when using musical power up to 300 Watts RMS, Subsonic filters should be set according to music style, this will help to avoid subwoofer damage from excess excursion caused by ultra low frequencies.
Take your time and break them in! A brand-new sub is always a little stiff but after break-in, the subwoofer soft parts will stretch out! This means with less power you will create the same output with more extended low bass tones
Recommended Custom Enclosures: Inside measurements based with 3/4″ wood material.
Single Sub Sealed Enclosure 55 Hz Tunning
All sealed-enclosures should be filled to 50% of poly-fil.
Volume | Box Suggestion | Port Size |
---|---|---|
0.15 ft3 | 7”x7”x5.5” | N/A |
Single Sub Compact Ported Enclosure 50 Hz Tunning
Volume | Box Suggestion | Port Size |
---|---|---|
0.26 ft3 | 7”x14”x5.5” | Triangle Port 2.5”x2.5”x3.5” by 12″ Total Length |
Dual Sub Recommended Ported Enclosure 45 Hz Tunning
Volume | Box Suggestion | Port Size |
---|---|---|
0.81 ft3 | 7”x20”x10” | Slot Port 7”x1.25” by 16.5″ Total Length |
Our History
For 23 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.