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Rockford Fosgate P165-SI

6-1/2" component speaker system

Item # 575P165SI

Without a doubt, Rockford Fosgate's P165-SI component speaker system is a powerful alternative to the speakers that...

Read more from Crutchfield writer, Alexander H.

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$139.99

About the Rockford Fosgate P165-SI

As solid as sound gets

Without a doubt, Rockford Fosgate's P165-SI component speaker system is a powerful alternative to the speakers that came in your car. Using an injection-molded mineral-filled polypropylene cone, the 6-1/2" woofer delivers impressively accurate sound. Rockford Fosgate's signature VAST surround technique also expands the surface area of the cone, giving you better bass response than comparable speakers. But no matter how heavy the bass gets, the separate 1" dome tweeter provides clear, extended highs for a rich full-range sound.
Rockford Fosgate P165-SI

Slots on the outer edge of the speaker basket make for an easier installation.

As solid as sound gets

Without a doubt, Rockford Fosgate's P165-SI component speaker system is a powerful alternative to the speakers that came in your car. Using an injection-molded mineral-filled polypropylene cone, the 6-1/2" woofer delivers impressively accurate sound. Rockford Fosgate's signature VAST surround technique also expands the surface area of the cone, giving you better bass response than comparable speakers. But no matter how heavy the bass gets, the separate 1" dome tweeter provides clear, extended highs for a rich full-range sound.

Integrated crossover

Rockford Fosgate makes installing this component system simpler by concealing each crossover in the speaker basket. That way, you won't have to find space behind your door panels for extra black boxes, but you'll still enjoy the clean sound that results when you channel your lows, mids, and highs to the optimum speakers.

Give your import some American muscle

Do you own a European car like a VW, Citroen, or Vauxhall? Rockford Fosgate designed these speakers with you in mind. Rather than only providing rigid screw holes that may not always match up to your factory speaker opening, the Flex 2 Fit basket design uses slots on the outer edge of the speaker basket for an easier match.

Installation note: You'll need a pair of our universal backstraps to install the tweeters in the factory locations.

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Product highlights:

  • component speaker system includes two woofers, two tweeters, and two woofer grilles
  • 6-1/2" mineral-filled polypropylene woofer
  • Santoprene rubber surround
  • separate 1" PEI dome tweeter
  • integrated crossover concealed in speaker basket
  • Vertical Attach Surround Technique (VAST™) increases cone area
  • power range: 5-60 watts RMS (120 watts peak power)
  • frequency response: 43-20,000 Hz
  • sensitivity: 88 dB
  • top-mount depth: 2-5/16"
  • grilles included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # P165-SI
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What's in the box:

  • 2 Woofers
  • 2 Woofer grilles
  • 2 Tweeters (6" speaker wire attached terminated with female quick-slide connectors)
  • 2 Front flush mount brackets
  • 2 Rear flush mount brackets
  • 2 Angled surface mounting housings
  • 2 Tweeter trim rings
  • Two M4x25mm Machine screws
  • Two M4x10mm Machine screws
  • Two M4x15mm Stud bolts
  • Eight 1-1/4" Allen head screws
  • 3mm Allen head bit
  • 8 Speed clips
  • Two 39" Lengths of tweeter speaker wire (each with male quick slides on one end and female quick slides on the other)
  • Installation/Operation Instructions (English/ French/ Spanish/ German/ Italian)

Customer reviews

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Rockford Fosgate P165-SI Reviews

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More details on the Rockford Fosgate P165-SI

Features & specs

General
Speaker Size 6 1/2
Design 2-way
Tweeter Design 1" Dome
Impedance (Ohms) 4
Tweeter Composition Treated PEI
Woofer Composition Mineral-Filled IMPP
Woofer Surround Santoprene Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) 88
Sensitivity at 2.83 volts 91
Frequency Response 43 - 20k Hz
Minimum RMS Wattage 5
Maximum RMS Wattage 60
Peak Power Handling (Watts) 120
Top-mount Depth (Inches) 2 5/16
Bottom-mount Depth (Inches) 2 9/16
Cutout Diameter or Length (inches) 5 1/2

Product Research

Features

Injection-Molded Polypropylene Woofers: The woofer cones are mineral filled, injection-molded polypropylene. This molding process assures a uniform cone thickness for superior linearity and clarity. It is also light weight and rigid for decreased distortion and improved bass response.

Klippel Verified: The Klippel distortion analyzer, a device that uses a laser and sophisticated software to do large-scale analysis of drivers in motion, lets Rockford Fosgate optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.

VAST Surround: The Vertical Attach Surround Technique (VAST) increases a speaker's effective radiating cone area without increasing the size of the basket.

FlexFit 2 Basket: The FlexFit 2 frame utilizes slots (where possible) instead of single screw sized holes; allowing slight adjustment of the speaker when mounted.

Size Classification Note: Some manufacturers, including Rockford Fosgate, call this size speaker a 6-1/2". Because it requires a larger cutout than a standard 6-1/2" speaker, Crutchfield has traditionally referred to this size woofer as a 6-3/4". Please refer to the Crutchfield Vehicle Selector to confirm fit in your vehicle.

PEI Dome Tweeters: The 1" dome tweeters are made of Poly-Ether-Imide (PEI); PEI is a polymer film that produces a wide soundstage for superior imaging.

Mounting: The tweeters have multiple mounting configurations; choose flush or angled surface mount. The surface mount housing can be positioned at a 10° or 30° angle. Depending on the mount used, the installed dimensions are:

  Flush Surface 10° Surface 30°
Mounting Height 0.40" 1.064" 1.297"
Mounting Depth 0.912" Screw Depth Screw Depth
Frame Diameter 2.112" N/A N/A
Cutout Diameter 1.75" N/A N/A
Frame Width N/A 2.128" 2.128"
Frame Depth N/A 2.153" 2.149"

Crossovers: The high-pass crossovers are integrated into the baskets of the woofers and the tweeters are wired to a second set of terminals on the woofer using the included wire. The crossover slope is 12dB per octave.

Speaker Terminals: These speakers have 0.25" wide positive (+) terminals and 0.187" wide negative (-) terminals, which are too large for the vehicle-specific speaker harnesses Crutchfield supplies for many vehicle applications. We recommend that a pack of assorted female quick slides (item number 120FQS10PK, sold separately) be purchased and spliced to the harnesses to adapt them to the speaker terminals.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I have known the Rockford Fosgate sound for over 30 years. They have always been top quality speakers. [ Jose  Dec 03, 2018 ]
A
I have used Rockford Fosgate in the past and I'm pleased with it [ michael  Apr 15, 2018 ]
A
Just the right amount of base and voice combination, I prefer them on the rear corners. [ Hector Luis  Mar 31, 2018 ]
A
read crosstrek upgrade article [ Randy  Dec 05, 2016 ]
A
FITS MY CAR, ACCORDING TO CRUTCHFIELD [ J  Nov 06, 2016 ]
A
Made of good materials with good reviews. [ Brian  Jun 24, 2016 ]
A
Great speakers at an incredible price [ Jim  Dec 05, 2015 ]
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3 questions already asked

Q
Is it the tweeter that has the internal crossover, or is there a special connection on the mid-woofer for the tweeter to connect to? (P165-SI)
[ William  Feb 08, 2018 ]
2 answers
A
The crosover is built into the woofer, so just screw down wire connections from tweeter and good to go.
[ Richard  Feb 10, 2018 ]
A
It's the midwoofer that has a special connection to go to the tweeter. I just connected mine directly into my factory harness instead but it would probably sound better if I had used the special connection from the midwoofer to the tweeter.
[ Jon  Feb 10, 2018 ]
Q
Will these fit in front doors of f150 with adapters?
[ Gary  Dec 02, 2016 ]
1 answer
A
For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Kenny  Dec 02, 2016 ]  Staff
Q
I have a 2012 Scion xB. Will these work with the speaker adapters you sell?
[ Derek  Dec 25, 2015 ]
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Kenny  Dec 26, 2015 ]  Staff

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