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Boston Acoustics SC85

5"x7" 2-way car speakers — also fits 6"x8" openings

3 Reviews

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Item # 065SC85

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Our take on the Boston Acoustics SC85

Boston Acoustics SC Series speakers bring brilliant sound to your vehicle's audio system. Their precision construction and sensitive response allow them to deliver superb performance, filling your car with perfectly balanced sound and making your drive much more pleasurable.

Boston Acoustics SC Series speakers bring brilliant sound to your vehicle's audio system. Their precision construction and sensitive response allow them to deliver superb performance, filling your car with perfectly balanced sound and making your drive much more pleasurable.

The Boston Acoustics SC85 5"x7" speaker features a tough copolymer woofer woofer that really delivers the beat. A butyl rubber surround keeps the cone under tight control for clear sound and reliable operation even at extreme playback levels. The 3/4" Kortec® dome tweeter sits in a contoured baffle that widens the dispersion of your high notes, providing clean, well-balanced instrumental detail throughout your car.

A built-in crossover makes sure the highs and lows combine smoothly, and protects the tweeter from sudden overloads. The compact neodymium magnet helps reduce the size of the SC Series speaker, so it can fit in more vehicles without any loss of fidelity.

Note: The oversized terminals on these speakers won't connect to a Crutchfield wiring harness. We recommend that you buy a 10-pack of female quick slides that you can splice onto our harness.

Priced per pair

Product Highlights:

  • 6"x8" 2-way speakers (pair) — also fit 6"x8" openings
  • copolymer woofer cone with butyl rubber surround
  • 3/4" Type-S2 Kortec dome tweeter
  • compact neodymium magnet for shallower mounting depth
  • power range: 2-50 watts RMS (160 watts peak power)
  • frequency response: 50-20,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 2-1/4"
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Two coaxial speakers
  • Two 7" Lengths of speaker wire (each has quick-slides on one end and bare wire on the other)
  • 2 Adhesive backed foam gaskets
  • Eight 1" Self-tapping screws
  • 8 Speed clips
  • 4 Butt connectors
  • Installation instructions
  • Warranty information
  • Product registration card

Boston Acoustics SC85 Reviews

Average Customer Review(s):

(3 Reviews)

Just OK

brianB from Tulsa on 8/3/2012

I have long been a fan of Boston Acoustics car and home audio speakers. I had a set in my F150 that I loved although I can't remember the model number. So when I ordered these for my Shelby, I thought I was getting the same ones (they ended up not being the same as before). The sound quality of these is a lot better than the stockers in a mustang, but that isn't saying much. These speakers are decent sound quality but I was disappointed because they are not nearly as good as the other BA's I have owned. They are good if you are adding them to the stock radio as they do not require much power but if you're looking for a audiophile level speaker, this isn't the one for you. I paired these with Kickers Shelby 8" mid range speakers in the doors and the sound quality from the pair is average at best. I will be upgrading to a JL set of 5 ¼'s soon.

Pros: Low power requirement. Decent price. Better than stock.

Cons: Average sound quality. Harsh highs. No low end bass.

Boston Acoustics SC85

Thomas B from Cincinnati Oh on 5/20/2012

Crutchfield Customer Review (What's this?)

Great speakers l

Pros: Highs and lows are in the right territories for just great sound

Cons: None

Great All-Around Speakers

Blacker from Belgrade, MT on 3/30/2012

2002 Ford F-150
Crutchfield Customer Review (What's this?)

After opening the speaker box, I did a quick test on the cone and it was extremely tight, which told me before I even installed them that there wouldn't be much bass muffle. And indeed, they're great. The bass is very tight on all types of music, great with a 7.1 EQ to tune each frequency band. Some songs vibrate my doors so much that I think I might need to do some reinforcement so the panel doesn't break apart. I will say they're more suited for dance/rap music or hard rock/heavy metal over indie/pop type stuff that doesn't hit very hard. The highs aren't the best I've ever heard, but I've got Alpine tweeters and crossovers to handle that. Still, these are amazing all around speakers, and are great if you have a factory deck with a 4 channel amp and 7.1 EQ like I do. I would recommend buying them now -- I was told Boston Acoustics is pulling out of the car audio industry, which stinks :(.

Pros: Tight Bass

Cons: Not the best highs I've ever heard, but still solid.


Hands-on research

Features and Specs

Speaker Size
Design 2-way
Tweeter Design 3/4" Dome
Impedance (Ohms) 4
Tweeter Composition Kortec
Woofer Composition Copolymer
Woofer Surround Butyl Rubber
Parts Warranty 2 Years
Labor Warranty 2 Years
Sensitivity (1W at 1 meter) 90
Sensitivity at 2.83 volts N/A
Frequency Response 50 - 20k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 50
Peak Power Handling (Watts) 150
Top-mount Depth (Inches) 2 5/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 0

Product Research


Tweeter: Each speaker uses a type-S2, 3/4" Kortec dome tweeter. Kortec is a silky fabric saturated on the underside with a proprietary stiffening agent. Because the inside surface of the dome is ultra stiff, the tweeter tracks the signal with ease and produces an excellent transient attack. Simultaneously, the soft, self-dampening top layer eliminates unwanted resonance, so the sound is smooth and articulate. The Contoured Asymmetrical Tweeter Baffle (CATB) delivers smooth extension and strong on-axis and off-axis response.

Woofer: The copolymer woofer cone has a durable butyl rubber surround and stands up to the harsh automotive environment.

Crossover: All SC series speakers feature specifically tuned crossovers to deliver the best blend between the tweeter and woofer. Each also features tweeter protection for optimal performance and reliability.

Voice Coil: The oversized 1-1/2" voice coil increases overall power handling and reliability.

Installation: The compact size of the magnet allows SC series speakers to fit where other high quality speakers don't. Neodymium magnets offer extraordinary power-to-weight ratio, approximately ten times the magnetic strength of a conventional iron-ferrite magnet of equal size.

Speaker Terminals: These speakers have 0.25" positive (+) terminals and 0.187" negative (-) terminals, which are too large for the vehicle-specific speaker harnesses supplied by Crutchfield for many vehicle applications. It is recommended that a pack of assorted female quick slides (item # 120FQS10PK) be purchased and spliced to the harnesses to adapt them to the speaker terminals.

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.