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Rockford Fosgate RFiF2SW

2-channel speaker output adapter (bare speaker wires to female RCAs)

Item # 575RFIF2SW

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Item # 575RFIF2SW

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$7.99
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About the Rockford Fosgate RFiF2SW

Make speaker-level signal connections

This Rockford Fosgate adapter lets you connect the speaker-level outputs from your car stereo to a compatible amplifier with RCA inputs that will accept a high-level signal. Once you've connected your speaker wires to this adapter, you'll run RCA patch cables (sold separately) from the adapter's female connectors to your amp. Oxygen-free copper wires and platinum-plated connectors resist corrosion and ensure good signal flow. Warranty: 1 year

What's in the box:

  • 14.5" Speaker level-to-RCA adapter (4 bare wires on one end and two female RCA jacks on other end)
MFR #RFIF2SW

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Rockford Fosgate RFiF2SW reviews

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Rockford Fosgate RFiF2SW

Crutchfield customer from Irwin, PA on 9/17/2019

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This is a Great solution to convert RCA

Pros:

Cons: NO wire diagrams to tell you what is what

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Rockford Fosgate RFiF2SW

Crutchfield customer from Cleveland, OH on 8/11/2019

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This is exactly what I needed

Pros:

Cons:

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Rockford Fosgate RFiF2SW

Crutchfield customer from O Fallon, IL on 3/24/2019

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worked as advertised

Pros:

Cons:

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GOOD STUFF!

MICHAEL from Folcroft, PA on 2/3/2019

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Perfect product need for my install. Quality meets and exceeds my original thoughts

Pros:

Cons:

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1 of 1 found this helpful

Rockford Fosgate RFiF2SW

Crutchfield customer from Keller, TX on 12/10/2018

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These work well and look very professional with the factory harness when properly connected. The wire was very easy to solder with.

Pros:

Cons:

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0 of 0 found this helpful

Great cables multiple uses.

Joe from Panama City Fl on 9/4/2018

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These are also great for connecting your smart phone to a set of speakers. So you don't have to have all your sound coming out of the tiny Bluetooth speakers they are making now. 2" speakers no matter the price or quality always sound like 2" speakers. But with this adapter you can get the audio in cable to male RCA and hook your phones audio right to the rca end.

Pros: Price , quality , uses.

Cons: That I can't drive to a store and buy them.

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Rockford Fosgate RFiF2SW

Crutchfield customer from Levittown, NY on 9/2/2018

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Easy to use and worked like a charm!

Pros:

Cons:

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0 of 0 found this helpful

Great cable

Kieron from Germantown, TN on 8/17/2018

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These are great high quality cables, thank you!!!

Pros: High quality

Cons: None

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0 of 0 found this helpful

Rockford Fosgate RFiF2SW

Crutchfield customer from Lihue, HI on 5/1/2018

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Good

Pros:

Cons:

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Rockford Fosgate RFiF2SW

Crutchfield customer from Pearl City, HI on 3/12/2018

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Can't beat having RCA ports, but if you want to keep the stock radio, these are the next best thing and easy to use.

Pros:

Cons:

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0 of 0 found this helpful

Work good for factory install.

Bruce from Scott Afb, IL on 3/9/2018

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I will say they worked out good on my factory F150 install to get the signal to my alpine amp. The problem came from fords dirty signal. Unfortunately due to this I had to ditch the cables and install a LC7i. Worked out better this way for me. Not the cables fault.

Pros: Makes life easy for adding amp to factory radio

Cons: Allow signal noise through to the amp but that's to be expected.

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0 of 0 found this helpful

Bag speakers

Kevin from Constantia, NY on 2/25/2018

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Worked out great. Used to wire up rear saddlebag speakers on hd street glide

Pros: Firm connection

Cons: None

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0 of 0 found this helpful

great

Crutchfield customer from Sprngfld Gdns, NY on 1/21/2018

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good idea for using with OME speakers

Pros: high quality

Cons: none

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1 of 1 found this helpful

Rockford Fosgate RFiF2SW

Crutchfield customer from Issaquah, WA on 12/20/2017

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This is the only speaker wire to FEMALE RCA adapter I could find anywhere. Crutchfield comes through again. If you are connecting directly between 2 components, you most likely need the male version. But if you're connecting to an RCA lead wire, this is most likely what you need. Many of the male versions include a female-female adapter, but that's an extra signal degrading connection. Pay attention so you don't get mad at everyone because you screwed up. Also, if you are unsure of how to wire it or like to triple check everything, Crutchfield has a chart in the "details" section and Rockford Fosgate has a "product advisory" wiring diagram on their website with critical info for some applications.

Pros: well made, ready to go, plenty of extra wire if you mangle a wire end in a tight spot

Cons: wire colors OK but not super distinct. product advisory not in package, you have to search Rockford Fosgate website

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2 of 2 found this helpful

Rockford Fosgate RFiF2SW

Crutchfield customer from Ripley, NY on 10/15/2017

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It was easy to hook up. The black line that goes down the side of the wire was really easy to tell apart from the wire that did not have the black line. The precut on the end of the wire was made the right length and the wire casing on the end was easy to take off. The length of the wire was long enough in case you make a mistake you can cut soom off then splice the 1/2" for the tip of the wire pluse be able to do that a couple of times

Pros:

Cons:

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0 of 0 found this helpful

Works well

Dick from NH on 6/13/2017

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Does exactly what it is supposed to do.

Pros: Well made

Cons: None

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0 of 0 found this helpful

Rockford Fosgate RFiF2SW

Crutchfield customer from Two Rivers, WI on 4/25/2017

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Great quality and super fast shipping.

Pros: Rockford fosgate qualty Crutchfield fast delivery

Cons: None

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0 of 0 found this helpful

Perfect!

John from Canon City, CO on 3/8/2017

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Great well made product!

Pros: Well made.

Cons: None

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0 of 0 found this helpful

Easy fix

BRIAN from Bartonville,IL on 2/14/2017

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Easy solution to put PBR300x1 back to line level input, because who know where the cutoff went

Pros: Quick fix

Cons: None

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0 of 0 found this helpful

Rockford Fosgate RFiF2SW

alain from long island, new york on 7/19/2016

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Great product, it saves me a lot of headache. a life saver

Pros:

Cons:

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0 of 0 found this helpful

30 foot San Juan boat

Capt. Earl from Marthas Vineyard on 6/8/2016

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Exactly what I needed and easy to install. Fast, courteous purchasing and shipping.

Pros:

Cons:

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0 of 0 found this helpful

Works as intended

Tyler from Rome, GA on 2/29/2016

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Works as intended. Had an issue with the amp I connected this to, but it was not this products wrongdoing.

Pros: Works as intended

Cons: None

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0 of 0 found this helpful

Great

Mark D. from warwick, RI on 2/6/2016

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Worked very well for my particular application. Great signal now going to my 4-channel amp!

Pros: Easy to install, great signal

Cons: None

Crutchfield response on

0 of 0 found this helpful

Worthless

Ron B from Fleming Island, FL on 1/25/2016

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Speaker level inputs use existing speaker wires to send input to another device, usually an amplifier. Every amplifier I've bought in the last 30 years has FEMALE RCA inputs and outputs. This product converts speaker wires to Female RCA's. No way to directly plug into anything without buying another set of Male/Male RCA cables. This requires an added connection and longer lines. More connections and cable length is bad ju-ju. Product should be speaker wire inputs to MALE RCA'S. I didn't pay attention and now have to go buy an additional RCA.

Pros: Absolutely none unless you just like making unnecessary connections.

Cons: Useless

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2 of 46 found this helpful

RFIF 2 channel speaker output adapter

ONION! from Gulfport, Ms. on 12/14/2015

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These Rockford Fosgate speaker adapters were simple to use. Wired them in place of the recommended KISL's and they work perfectly...simplified my application fit use on Kicker Hideaway 8" powered subs. Great product at a fair price...at a fraction of the price of other speaker adapters.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

RCA connector

Jerry D from New York on 11/2/2015

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Made connection from the wired speaker terminals of my reciever to a SONOS connect easy.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

rockford fosgate wire to rca adapters saved me $$$$$

patrick from mooresville, nc on 9/17/2014

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Awesome quality.

Pros: They worked like a champ. Joined the two negative cables and grounded them then hit the positive wires running to the rear speakers and boom, out comes the sound!!!! Saved me around $60 by going with the pre made adapters. They went in a 2010 Camaro SS.

Cons: Nothing at all.

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1 of 2 found this helpful

just wanted i needed

joshua L from corpus christi, TX on 8/11/2014

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works great

Pros: needed this for my P10-300 after using the high level speaker inputs just rebutted the wires and was good to go

Cons: none

Crutchfield response on

0 of 0 found this helpful

Great connectors

Crutchfield customer from New York on 6/10/2014

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Easy to use and great quality. It actually has a wiring diagram that helps you know what to do during installation. I rejected all others because of this.

Pros: Detailed information. Great quality.

Cons:

Crutchfield response on

0 of 1 found this helpful

Great product

johnny from miami fl on 5/31/2014

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It's a great product to put my subwoofer amp and easy installation

Pros: Fast shipping and great product A++++ don't need to take my stock radio

Cons:

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0 of 0 found this helpful

speaker output

rockfor from md on 6/9/2013

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exelent wire speaker work good

Pros:

Cons:

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4 of 6 found this helpful

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Pros:

Cons:

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<< >>

More details on the Rockford Fosgate RFiF2SW

Mark G.

Product Research

Features

Speaker-Level to RCA Adapter: This high-level speaker wire to RCA adaptor (RFIF2SW) from Rockford Fosgate lets you connect your vehicle's factory radio or an aftermarket head unit without RCA outputs to an aftermarket amplifier which lacks speaker-level inputs. The speaker-level to RCA adapter features 4 bare wires on one end and two female RCA jacks on other end.

Wire Color Function
Gray wire Right Front Speaker Wire (+)
Gray/black wire Right Front Speaker Wire (-)
White wire Left Front Speaker Wire (+)
White/black wire Left Front Speaker Wire (-)
Gray RCA Right Front Channel of Amp
Black RCA Left Front Channel of Amp

Twisted Pair Constructions: Each RCA channel is twisted, alternating the positive and negative conductors, to help reduce noise for enhanced sound quality.

OFC: The speaker wire leads and RCA cables use Oxygen Free Copper for corrosion resistance and excellent signal transfer.

Platinum Plated RCA Jacks: The platinum plated female RCA jacks resist corrosion and offer excellent signal transfer.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Allows for the install of an aftermarket amp to a factory head unit [ Russell  Jul 16, 2019 ]
A
Makes the install easier and simpler! [ John  Apr 02, 2019 ]
A
206KiSL not available [ Jason  Feb 14, 2019 ]
A
Custom patch cable from factory speaker wire into stand alone amplifier's line-level/high-level RCA input. [ Theodore  Jan 07, 2019 ]
A
I chose this connector in order to connect RCA out from my Pioneer head unit to the Match DSP which does not have RCA inputs. [ Paul  Nov 20, 2018 ]
A
Upgrade from my factory speakers. [ Donald  Oct 27, 2018 ]
A
quick installation and to unplug [ miguel  Sep 12, 2018 ]
A
So I don't have to cut off rca connectors on amp [ Kelly  Jun 03, 2018 ]
A
Needed an rca to speaker converter so I could use the factory Bose amps in my rsx along with my new head unit. Didn't want a line output adaptor because I didn't want to run mono sound. [ Peter  May 22, 2018 ]
A
easy install of subwoofer in my 2016 jeep jku with factory alpine head unit! [ BARRY  Apr 21, 2018 ]
A
Next purchase will be a Alpine X-A90M amp and this part was recommended to go with it [ Nolan  Apr 12, 2018 ]
A
I like it [ Raul  Apr 02, 2018 ]
A
Need then for corvette harness I already ordered [ Kasey  Feb 28, 2018 ]
A
Perfect for keeping the stock oem 8.4" deck with nav, apple CarPlay, and camera, to add an aftermarket amp. [ Alexander Leleh  Feb 27, 2018 ]
A
Liked the fact that there isn't barrel connectors. Barrel connectors are just another place to loose power. [ Bruce  Feb 11, 2018 ]
A
Nothing else has a female connector so more connections(and parts) are needed [ Doug  Nov 23, 2017 ]
A
To connect speaker wires to RCA jacks. [ Gene  May 31, 2017 ]
A
Stereo has binding terminals and my speakers are RCA. Using these as adapters for hooking up speakers. [ Menter  May 14, 2017 ]
A
Qaulity brand. Great results with this in the past [ Leonard  May 04, 2017 ]
A
To make installation of the RF300X1 amp super easy into an OEM radio [ Matt H  Mar 31, 2017 ]
A
I'm using this to connect a set of wireless headphones to an older Onkyo amp [ Joe  Mar 19, 2017 ]
A
Need to connect amplifier [ Alberto  Jan 26, 2017 ]
A
Customer support [ David  Dec 23, 2016 ]
A
I have an older deck in my truck and this allows me to put a subwoofer in without replacing the deck. [ Wyatt Andrew  Dec 01, 2016 ]
A
Connect Punch amp to factory stereo [ Jonathan  Nov 30, 2016 ]
A
I don't have a RCA port in my radio so splicing into my speakers with this will allow me to hook up my Amp [ Andrew  Nov 14, 2016 ]
A
Tech said I needed it but then I ordered the wiring kit afterwards and probably don't but was keeping it in case. [ Jeff  Oct 10, 2016 ]
A
because i got the rockfprd speaker [ JAMES  Oct 02, 2016 ]
A
Because I need it for my amp hookup and splicing into my existing factory amp. [ Wayne  Sep 30, 2016 ]
A
needed [ Patrick  Sep 04, 2016 ]
A
Needed speaker level inputs and the amp I bought was Rockford Fosgate. [ Paul  Aug 19, 2016 ]
A
I want to connect my factory sub amp that has speaker in wires to the sub pre amp rca of the head unit [ Karsten  Jul 16, 2016 ]
A
I had bought several Rockford Fosgate car audio equipments in the early 1990's and their quality were, and are as good as other brand such as Alpine and JL Audio. The price are reasonable and importantly you get a good product. [ Khamsing  Jul 11, 2016 ]
A
affordable and it is just what i need for my installation [ matt  Jun 20, 2016 ]
A
Worked well for my application. [ SHAWN  Jun 08, 2016 ]
A
Powering aftermarket component speakers with an amp that accepts speaker level inputs, but needs them converted into rca inputs. [ Parker  Jun 01, 2016 ]
A
Current radio has a Sub-out with an RCA ran back to a Rockford P300-12. Bought the JBL Legend CP100 and it does not have a Sub-Out. Bought the Audio Control LC2i and will use this with the current RCA to plug into the LC2i. [ CHARLES  Feb 14, 2016 ]
A
Looks like good quality and the price is reasonable. [ THOMAS  Jan 20, 2016 ]
SHOW MORESHOW LESS

3 questions already asked

Q
Can you splice these wires directly to your car speakers and then connect the rca wires to your amp?
[ Nick  Jun 06, 2014 ]
9 answers
A
Can you this set up for house speakers? If so, how would you connect it?
[ willie  Jul 23, 2014 ]
A
Yes you can. In my installation, I used this product at the wiring harness leaving my head unit. I spliced into the right and left rear speaker wires. I then connected my RCA pre-amp cables and ran them to the floor, under the carpet and back into the rear of my Jeep where I have my powered subwoofers. This is a great product for keeping factory "non RCA pre-amp output" head units if you don't want to or your budget doesn't allow. In essence, I now have a head unit with RCA pre-amp outputs.
[ BRIAN  Jun 11, 2014 ]
A
This will depend largely on your amplifier. If your amplifier can accept a high level input on the RCAs then this will work great. Otherwise you would need a live level adapter to step down the speaker level output to RCA level. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help determine if this is compatible with your amp.
[ Jeff  Jun 09, 2014 ]  Staff
A
Only with certain amps that accept high level inputs through the RCA's. I think some RF and Kicker amps have the feature. You would have to check on others.
[ SHAWN  Jun 08, 2014 ]
A
Yes, that is very do-able. I use them the other way around. I connect the bare end to the speaker terminals of an amplifier and hook the other end to speakers with male rca plugs. Either way will work.
[ robert  Jun 07, 2014 ]
A
Only if it's a factory subwoofer, if you're connecting to your rear speakers you need a level line converter or the factory head unit will cut off the sound since it senses a high resistance and it'll try to protect the speakers.
[ SONNY  Jun 06, 2014 ]
A
Yes, that is the exact purpose of these wire kits. It's for a situation where you have a factory deck that you can't (or don't want to) remove but want to hook up an amp and sub woofer. Without an after market deck you don't usually have anywhere to hook up your RCA sub woofer wires, so that is where these get used. You can hook this harness kit up to your car's rear speaker wire harness and then plug into your amp's RCA cable input from these wire splices.
[ CHRISTOPHER  Jun 06, 2014 ]
A
Yes nick you can that's exactly what I did on my 2002 lexus gs 300 with premium sound and it worked.
[ CHRIS  Jun 06, 2014 ]
A
Yup, you sure can. That's what I did in F-350.
[ RYAN  Jun 06, 2014 ]
Q
Which wires does this splice to at the head init?
[ Kevin  Feb 21, 2014 ]
1 answer
A
This will depend largely on your vehicle. For details on 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 what you will need for an installation.
[ Jeff  Feb 21, 2014 ]  Staff

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