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Boston Acoustics S85

6"x8" 2-way car speakers

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Item# 065S85 offer details

Item# 065S85

Review Summary

 
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Our take on the Boston Acoustics S85

Boston Acoustic's S series speakers let you enjoy clear, natural sound, even with a low-powered system. And with a wide variety of sizes, you'll find a set for most commonly-sized speaker openings.

The Boston S85 6"x8" speaker features a 3/4" tweeter with a built-in cooling system for long term reliability and excellent power handling. A contoured tweeter plane guides high-frequency output to create a larger listening "sweet spot," while Boston's Amplitude Modification Device (AMD™) reduces harshness in the upper mids for clear, detailed sound.

The sturdy woofer cone teams up with a durable butyl rubber surround to produce tight, clean bass with minimal distortion. And you'll hear a smooth blend between the woofer and tweeter, thanks to the built-in crossover. Grilles are not included. (Factory grilles are appropriate for most installations.)

Note: Although the Boston Acoustics owner's manual for this speaker says that it's a 5"x7" speaker, our research has determined that it only fits into 6"x8" openings.

Highlights:

  • 2-way 6"x8" speakers (pair)
  • copolymer woofer cone with rubber surround
  • 3/4" Type-S3 soft dome tweeter
  • power range: 2-35 watts RMS (120 watts peak power)
  • frequency response: 50-20,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 2-1/4"
  • warranty: 2 years
  • Our 60-day money-back guarantee

Priced per pair
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs

Features and Specs
General
Design
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2-way
Tweeter Design
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3/4" Dome
Tweeter Composition
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Not Given
Woofer Composition
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Copolymer
Woofer Surround
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Butyl Rubber
Parts Warranty
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2 Years
Labor Warranty
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2 Years
Specifications
Sensitivity
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92 dB at 1 watt
Frequency Response
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50 - 20k Hz
RMS Power Range (Watts)
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2-35
Peak Power Handling (Watts)
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120
Impedance (Ohms)
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4
Top-mount Depth (Inches)
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2 1/4
Bottom-mount Depth (Inches)
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2 3/4

Product Research

Product Research
What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Bottom mount rings
  • Two 8" Lengths of speaker wire (each length of speaker wire has quick-slides on one end and bare wire on the other)
  • Eight 1" Hex head screws
  • Allen wrench driver attachment
  • 8 Speed clips
  • 8 Butt connectors
  • Specification sheet
  • Warranty card
  • Product registration card

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 open the box, verify contents, 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.

Features
Speaker Size Note

Features

Tweeter: The type-S3 3⁄4-inch tweeter's soft dome is Ferro fluid cooled for excellent power handling and reliability. The AMD (Amplitude Modification Device) located on the tweeter plane provides acoustical tuning for the midrange response while the shape of the tweeter plane improves off-axis response.

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

Crossover: Each speaker in Boston's S line features a specifically tuned crossover to deliver the best transition between the woofer and tweeter.

Speaker Size Note

Speaker Size: Although this speaker looks like a combination 5"x7"/6"x8" speaker, the cutout required for the speaker is larger than that of other combination 5"x7"/6"x8" speakers. Because of the larger cutout requirement, this speaker will only work in 6"x8" speaker locations.

 

Product Reviews

Review Summary

Average Customer Review:

30 people say:
(14)
(10)
(5)
(1)
(0)
 

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1-10 of 30 items >> Sort Results By: Date Reviewed | Rating | Helpfulness
 
5 out of 5

Great speaker for the price

Written By , Frenchtown, NJ on Wednesday, September 10, 2008
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I bought for a "beater" van I use for work. They are a great speaker for the price. They respond and sound awesome. I have them mounted in the back of a 91 Ford Club Wagon. I had put a pair of Pioneer of the same price and one speaker went bad after a year and a few months. So purchased these and they sound far better then the Pioneers of the same price class. Also they did fit in the factory cut outs and I was able to use the factory grills, making the install a total of 3 minutes per speaker. When I am on a job I open the back doors and I have great sound.
2 out of 3 people found this helpful
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5 out of 5

They Keep Me Rocking

Written By Arthur, Belton,Texas on Monday, July 28, 2008
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I first replaced the rear factory speakers with the S85's in my 02 Explorer, and immiediately noticed the deep, smooth low end that I not only heard, but felt aswell. Then there's the midrange which is silky and sparkling which allows vocals to be heard with clarity, and last but not least comes the high end which is definitely ear pearcing! In ending, after replacing the front speakers with S85's aswell, they earn not only a 5 all around, but deserve a 10 ! Soon, I'm exchanging the factory cd player with a Kenwood eXcelon KDC-X492,which I'm sure will make the S85's really sing! Thankyou Crtuchfield, for the outstanding customer service,all the optional connectors and self installation guides you provide.
4 out of 4 people found this helpful
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5 out of 5

they are worth the money

Written By Big Daddy, Charleston, West Virginia on Wednesday, November 24, 2010
 
on my vacation i went down to wills and bought me a set of these Boston
Acoustics S85 door speakers they took out my old factory door speakers and
installed these Boston Acoustics S85 replacement door speakers in my 2000
Ford Ranger xlt xcab and they sound a whole lot better than my old factory
door speakers and i would recommend these to any one who is on a
budget and im just waiting for my factory cd player to go before i go and
replace my factory cd player with a aftermarket cd player / radio
Was this review helpful?    Yes | No
 
5 out of 5

Clear,smooth,punchy WOW!

Written By Thomas, Courtland,Al on Saturday, December 13, 2008
 
I bought a set of these to replace the rear panel speakers in my 2007
Hyundai Accent hatch.I have already added a Rockford Fosgate 12" Punch
sub and Kicker Kx150 amp for solid bass.Still having the factory stereo and
speakers it was lacking in clarity in mirange and upper bass,the seperate
tweeters in the doors were too bright if turned up enough to get mid-bass
out of the fronts.The bass in the rear panels was very muddy in comparison.
After adding these WOW! What a difference.They provided a smooth
transision from the deep bass in the rear all the way up to the highs in the
front.The clarity in midrange is awesome to say the least.They are very
clear with highly defined bass that is mellow and punchy.Midrange is solid
and highs blend in nicely. Perfect for rear fill.I can't wait to upgrade my
head unit and front door speakers now for the total package.I am sure
they will sound even better with a higher output aftermarket HU.I would
recommend these to anyone who wants excellant sound reproduction from
a full range speaker without needing a seperate amp.
6 out of 6 people found this helpful
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5 out of 5

Great sound in a noisy Diesel

Written By Scott, Richmond, Va. on Thursday, March 05, 2009
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
I installed 2 sets of these in my '99 F250 diesel and the sound is awesome. They have great sound through the entire spectrum, and cover up the noise of the motor well. I am running them with a Pioneer deh-p6000ub which gives them much better sound than the factory unit. They were a breeze to install, about 15 minutes per speaker. GREAT PRODUCT!!!
2 out of 2 people found this helpful
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5 out of 5

Nice

Written By Zach, Auburn, ME on Sunday, May 10, 2009
 
I have only had
these in my 98 Ford
Taurus for a couple
of days and I'm so
happy with them that
I'm going to get
another pair to
replace my stock
front speakers at
point Can't to have
4 of these in my
car!!!
Was this review helpful?    Yes | No
 
5 out of 5

Great speakers

Written By phil, heath Ohio on Thursday, February 11, 2010
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
First of all don't pay attention to anyone complaining about the mid and high
range sounds. They are running these off of a factory receiver and good sound
starts there. With that said some amplification makes these scream. I installed
these in the front door in my town car. I have an alpine head unit with the 45
watt boosting amp and it does the job. My mirrors shake, yes the ones on the
door. Paired up with my 6X9's in the rear deck I have no need for a sub at all.
3 out of 3 people found this helpful
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5 out of 5

Boston Acoustics S85

Written By ROD, Santa Fe, NM on Wednesday, December 22, 2010
 
Have to say a lot of people here are missing out if they purchased these speakers without an
amp. I don't know how they sound without one, but mine sound amazing with an amp. Very
clear and great bass.
2 out of 2 people found this helpful
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5 out of 5

Fantastic Sound

Written By Andrew, Savannah, GA on Saturday, January 27, 2007
Crutchfield Customer Review (What's this?)
Crutchfield Customer Review

The reviewer purchased this item from us, verified by the email address on the order.

 
These speakers sound great in my 03 Tacoma with a new receiver. They have good crisp highs and nice round bass. You'll need an amp and a subwoofer to get really thumping bass, but these are remarkable. I would say they stack up very well to the Infinitis I installed in the rear doors of my truck; they might even sound slightly better (which is NOT what I expected).
5 out of 5 people found this helpful
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5 out of 5

Good set of speakers

Written By aeond, Portage, MI on Thursday, May 25, 2006
 
This is a good set for my needs. I replaced my stock speakers in the rear panels of my 01 cougar with a set of these, and coupled with the Boston SL80 plate speakers, they really shine. The SL80's help my subs reach a nice bass clarity, so these dont have to do anything but give me some great mid-high to high frequencies, and they are wonderful for that purpose. Clear, Clear, Clear! I would buy them again.
4 out of 4 people found this helpful
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1-10 of 30 items >>

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Accessories

Accessories we recommend

Dynamat
Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
Dynamat 10415 Xtreme Speaker Kit
Two 10-in. x 10-in. Sheets
$26.99
In Stock
 
 
Dynamat 10435 Xtreme Door Kit
With four 12" x 36" sheets — covers two doors
$99.99
In Stock
 
 
Dynamat SuperLite Tri-Pak
Triple package — 3 sheets, 12 square feet (Model #10612)
$69.99
In Stock
 
 
Speaker Wire
You'll need speaker wire to connect your speakers to your amp.
StreetWires 16-gauge Super Cable™ Speaker Wire
Blue jacket — priced per foot
$0.40
In Stock
 
 
StreetWires 14-gauge Super Cable™ Speaker Wire
Translucent blue jacket — priced per foot (Clear)
$0.99
In Stock
 
 
Stinger PRO Series 16-gauge Speaker Wire
Black jacket — priced per foot
$0.30
In Stock
 
 
StreetWires 14-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$0.75
In Stock
 
 
StreetWires 12-gauge Ultra Cable™ Speaker Wire
Blue/copper jacket — priced per foot
$1.00
In Stock
 
 
Show more items
Baffles
Keep your speakers clean and dry. They compress to fit behind your speakers.
XTC 5
Protect your speakers (Slim-line: 3" depth)
$8.99
In Stock
 
 
Boom Mat 6
Protect your speakers
Regular and slim-line sizes (Slim-line: 3-1/2" depth)
$9.99
In Stock
 
 
XTC 5
Protect your speakers (4-1/2" depth)
$8.99
In Stock
 
 
Boom Mat 6
Protect your speakers
Regular and slim-line sizes (Regular: 4-1/2" depth)
$9.99
In Stock
 
 
XTC 6
Protect your speakers
$8.99
In Stock
 
 
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Extras

Installation Tools
The right tools will help keep your installation simple and clean.
Metra Crimp Tool and Connectors
Package contains crimp tool and over 150 pieces
$19.99
In Stock
 
 
Posi-Products™ Car Speaker Connectors
8 connectors for installing car speakers
$11.59
In Stock
 
 
S&G Tool Aid 87615
Window and Door Clip Removal Tool
$7.99
In Stock
 
 
S&G Wire Cutter/Stripper Tool
Cuts and strips 12- to 22-gauge wire
$19.99
In Stock
 
After $10.00 Price Break
 
S&G Tool Aid 87650
Door Trim and Panel Removal Tool
$9.99
In Stock
 
 
Bojo Trim Panel Tools
Set of 6 plastic tools — helps remove interior and exterior trim and door panels
$24.99
In Stock
 
 
Multi Wedge Trim Panel Tools
Set of six (flexible and rigid) tools — helps remove trim and door panels
$19.99
In Stock
 
 
DEI Heat Shrink Tubing
Black 4-foot length (Assortment)
$24.99
In Stock
 
 
Spec Tools SQR-200a Squeeze Wrench
Narrow space ratchet kit with 18 sockets
$49.99
In Stock
 
 
Skewdriver Pro SPK4042
Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)
$49.99
In Stock
 
 
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Professional Installation
Get more info about having your new component speakers put in by a qualified professional in your area.
InstallCard: Speaker or Subwoofer
Prepaid installation card — for one pair of speakers or a subwoofer
 
Bass Blockers
If your stereo doesn't cut the deep bass from your full-range speakers, a set of bass blockers can help prevent distortion and give you cleaner bass too.
Bass Blockers
Pairs (300 Hz cut-off)
$9.99
In Stock
 
 
 
Add selected to cart
 

For a more in-depth review and enhanced detailed information on the Boston Acoustics S85, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_065S85/Boston-Acoustics-S85.html ).

Sorry, the Boston Acoustics S85 is no longer available for purchase.

Boston Acoustics S85