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RetroSound R-48N

Single 4"x8" 2-way car speaker with dual voice coils — stereo mix from a single speaker

Item #: 068R48N

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3 Reviews | Ask Questions

Installation gear for most cars

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Important Note: This is a single 4"x8" speaker, so you'll need to purchase a pair for vehicles with two 4"x8" openings.

The right speakers for your vintage vehicle

RetroSound makes it easy to replace the factory speakers in almost any car — classic, vintage, or even brand new. Their RetroMod Series speakers feature extremely shallow baskets designed to fit into a wide variety of standard speaker locations. They may look old school, but RetroSound builds their speakers from the ground up, using the latest techniques and materials.

Designed for a single dash or deck location

The single R-48N 4"x8" speaker is designed for a classic car with only one speaker opening on its dash or rear deck. The woofer features dual voice coils, each one connected to its own tweeter. Your stereo receiver connects to both voice coils, so you get a stereo mix from a single speaker. In effect, you get two 2-way speakers in one frame, for modern sound in your vintage application.

The speaker fits in these vehicles:


  • 190C 1962-65
  • 190DC 1962-65
  • 200 1966-68
  • 200D 1966-67
  • 220B 1959-65
  • 220SB 1959-65
  • 220SB 1959-65
  • 220SEB 1959-65
  • 230 1965-66
  • 230S 1965-68
  • 230SL 1963-71
  • 250SE 1965-67
  • 250SL 1963-71
  • 280SE 1969-71
  • 280SEC 1967-71
  • 280SL 1963-71
  • 300SE 1961-65
  • 300SEL 1962-65


  • 2800 (E3 SERIES) 1969-74


  • Scout 1961-65

General Motors

  • 1958 Cadillac
  • Chevrolet Chevelle 1966-67 (W/ Air)

Sturdy materials, detailed sound

The R-48N speaker features a powerful neodymium magnet and a low-carbon steel frame that form a strong foundation. The sturdy pulp composite woofer with its Santoprene surround delivers powerful performance while standing up to heat and humidity. The two Mylar dome tweeters broadcast detailed highs without sounding shrill, and their low profile helps increase installation options.

Although efficient enough to play well with any receiver alone, this RetroMod speaker can handle the high power from aftermarket amplifiers. Replace that wornout old 4"x8" with this updated RetroSound, and your tunes will sound new again, just like your classic ride.

Product Highlights:

  • single 4"x8" 2-way speaker
  • pulp composite woofer cone with Santoprene surround
  • dual voice coils for 2-channel operation
  • dual mylar dome tweeters
  • replacement for select Mercedes-Benz, International, and GM vehicles
  • power range: 2-60 watts RMS (120 watts peak power)
  • frequency response: 65-21,000 Hz
  • sensitivity: 87 dB
  • top-mount depth: 1-13/16"
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee

RetroSound R-48N Reviews

Average Customer Review:

3 Reviews

Nice Speaker

Written by: Mr K from New York on July 19, 2015

Crutchfield Customer Review (What's this?)

I think this is a nice speaker. Let's face it, not too many options out there for a single 4X8 stereo speaker!!! It certainly does the job. I installed in my 1978 International Harvester Scout II Terra. I had to make new holes to match up with the existing 10-24 studs welded to the back of the metal dash. This was not a big deal. The holes are just about at the edge. Make the new holes big. No need to skimp. I also removed my cardboard glove box to make the install easier. Additionally, I used a 1/4 nut and one #10 washer to stand it off the back of the dash. Between the louvers tilted in and other restrictions, there was no way it was fitting tight to the dash. Not a big deal. My head unit is a Retrosound Model 2 which I am totally obsessed with. Great head unit. Looks classic.

Pros: Good product filling a very narrow market.

Cons: Wish it had screw holes to exactly fit my IH but no big deal.

perfect fit

Written by: Tony from Colleyville, TX on March 24, 2015

Crutchfield Customer Review (What's this?)

Was not tested for fit in my 68 Impala. but it was a perfect fit. sounds great too!



Retrosound R-48N Speaker

Written by: Ulysses from Olympia, Washington on February 28, 2015

Crutchfield Customer Review (What's this?)

Outstanding Speaker! After a long search to find the original 4" x 8" size speaker for my 1974 International Scout II I discovered the Retrosound R-48N speaker as the perfect match. I had to do some minor modifications to make it fit which involved drilling two holes in the top part of frame and making some notches in the bottom portion of the frame so that if fit the existing mounting screws. This 2 way speaker sounds great and is without a doubt an excellent upgrade if you want to restore your vehicle back to it's original configuration and have quality sound.

Pros: Great sound and good price.

Cons: Could use more mounting holes

Hands-on research

What's in the box?

Download owner's manual

  • One 4x8 Dual input speaker
  • Two 5' Lengths of speaker wire (each has female quick-slides on one end and bare wire on the other)
  • Eight 1-1/8" Self tapping screws
  • 8 Speed clips
  • Owner's manual

Product Research


Woofer: The speakers feature rigid pulp composite cone woofers with Santoprene surrounds. The woofers use Neodymium magnets to achieve their shallow depth, so they fit in tight factory locations.

Tweeters: Two Mylar tweeters are wired separately so this single speaker will accept a stereo input.

Dual Voice Coils: The woofer has dual voice coils, each wired with one of the tweeters. The stereo input is useful in many older cars with a single speaker location in the dash or rear deck. If used in a standard two speaker application the inputs should be wired in parallel (to present a 2Ω load) or series (to present an 8Ω load).

Compatibility: Although we haven't seen the cars to research, RetroSound's website shows the R-48N fitting in these cars:

  • Mercedes
    • 62-65 190C
    • 62-65 190DC
    • 66-68 200
    • 66-67 200D
    • 59-65 220B
    • 59-65 220SB
    • 59-65 220SEB
    • 65-66 230
    • 65-68 230S
    • 63-71 230SL
    • 65-67 250SE
    • 63-71 250SL
    • 69-71 280SE
    • 67-71 280SEC
    • 63-71 280SL
    • 61-65 300SE
    • 62-65 300SEL
  • BMW
    • 69-74 2800 (E3 SERIES)
  • International
    • 61-65 Scout
  • Cadillac
    • 1958
  • Chevrolet
    • 66-67 Chevelle (with A/C)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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