Product Description
The RetroSound 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air) (store SKU RS-SP-ULTRATHINDASHREPLACEMENTSPEA72, Retro Manufacturing part R-57N) is a vehicle-specific RetroSound speaker listing from an authorized dealer.
Application: 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound. Install location: dash. Speaker size: 5x7. Design: Dual Voice Coil.
Published electrical and mounting data for part R-57N: 4+4ohm nominal impedance; TrueRating™ / published power handling 60/100; frequency response 65Hz-21kHz; sensitivity 87dB; mounting depth 1.98″ (50.5 mm). Figures come from Retro Manufacturing’s product information for this model — if the sheet in the box differs, follow the sheet that ships with the product.
This listing uses a dual-voice-coil speaker so a single dash opening can deliver a stereo mix. Use the included 8 Ω / DVC wiring guidance from Retro Manufacturing when connecting to a modern head unit.
Features for this listing
- Fitment focus: 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound (dash)
- Manufacturer part R-57N — 5x7
- 5 x 7-inch dash speaker
- Dual voice coils produce a stereo mix from a single speaker
- Neodymium magnet structure for ultra-thin design
- Santoprene® surrounds for accurate audio reproduction
- Silk tweeters produce smooth and natural highs
- Dip-cut magnet for enhanced sound
This page is only for RetroSound 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air). Other RetroSound speaker sizes and vehicles have their own listings with their own part numbers and openings — match years, location, and size carefully.
1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air) specifications
- Manufacturer model: R-57N
- Store SKU: RS-SP-ULTRATHINDASHREPLACEMENTSPEA72
- Years (this listing): 1967-1972
- Vehicle focus: Chevrolet C/K Series Truck Dash Speaker - RetroSound
- Install location: dash
- Nominal Diameter (inch): 5x7
- Description: Dual Voice Coil
- Nominal impedance: 4+4ohm
- Frequency response: 65Hz-21kHz
- Sensitivity: 87dB
- Power Handling (watts RMS/peak): 60/100
- Speaker Grill: NO
- Mounting Depth (inch): 1.98
- Mounting Depth (mm): 50.5
- Frequency Response (SPL@1w/1m): 65Hz-21kHz
Source: Retro Manufacturing product page for part R-57N. If the sheet in the box differs, follow the sheet that ships with the product.
1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air) wiring and tech tips
- Disconnect the vehicle battery before working on speaker wiring.
- This listing is for the 5x7 speaker (part R-57N) at the dash location on 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound.
- Confirm polarity and load: published impedance is 4+4ohm; power handling 60/100.
- Verify mounting depth clearance of 1.98″ (50.5 mm) at the dash opening.
- Use brackets, grills, and wire included with this kit when supplied; do not force mismatched openings.
- Dual voice coil: follow Retro Manufacturing’s DVC / 8 Ω wiring diagram so both coils are used correctly.
Vintage Car Radio does not offer installation. Share the manufacturer manuals with your installer if needed.
1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air) manuals
- Manufacturer product page for R-57N (specs & linked manuals)
- Retro Manufacturing warranty
- Retro Manufacturing help center
Documents on the R-57N product page are the official reference for RetroSound 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air).
One-Year Retro Manufacturing Warranty
Per Retro Manufacturing’s limited warranty, Speakers such as R-57N are covered for 1 year from the original purchase date for defects in materials and workmanship when purchased from Retro Manufacturing or an authorized dealer.
RA required — tech@retromanufacturing.com or 1-888-325-1555, or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not offer installation.
FAQ — 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air)
What exactly is this listing?
RetroSound 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound Premium 5"x7" DVC Ultra-thin 2-way (With Factory Air) — manufacturer part R-57N, store SKU RS-SP-ULTRATHINDASHREPLACEMENTSPEA72, for the dash position on 1967-1972 Chevrolet C/K Series Truck Dash Speaker - RetroSound.
Is this the same as every other 4×6 / speaker on the site?
No. Hardware families may share a part number (R-57N), but this page’s fitment, years, and install location are specific to this SKU.
Do you install?
No. DIY or a shop you choose.
Warranty?
Typically 1-year Speakers coverage from Retro Manufacturing — see Warranty.
Need help?
844-802-4499 or 574-226-6676.
Specs
Wiring / Tech Tips
Manuals
Warranty
One-Year Retro Manufacturing Warranty
Per Retro Manufacturing’s limited warranty, Speakers such as R-57N are covered for 1 year from the original purchase date for defects in materials and workmanship when purchased from Retro Manufacturing or an authorized dealer.
RA required — tech@retromanufacturing.com or 1-888-325-1555, or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not offer installation.
