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Boston Acoustics SX50

5-1/4" component speaker system

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Item# 065SX50 offer details

Item# 065SX50

Review Sumary

 
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Our take on the Boston Acoustics SX50

Install Boston SX component speakers and experience a new level of realism and clarity in your music — an excellent way to add new life to the sound of your car audio system. The XS50 5-1/4" component speaker package includes two copolymer woofers, two Type-S2 tweeters, two external crossover modules, woofer adapter rings, and tweeter mounting hardware.

Boston Acoustic tunes the outboard crossover to ensure a superb blend between woofer and tweeter for smooth, precise output. The tweeter output level is adjustable. Protection circuitry guards against accidental damage to the tweeter.

A compact, lightweight neodymium magnet reduces the woofer's size so it can fit in more vehicles — with no sacrifice in performance. The included mounting hardware allows you to surface- or flush-mount the compact tweeter.

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Highlights:

  • component speaker system includes woofers, tweeters, and crossovers
  • 5-1/4" copolymer woofer with rubber surround
  • 3/4" Type-S2 Kortec dome tweeter with multiple mounting options
  • external crossover with tweeter gain (0, -2, -4 dB) switch
  • power range: 2-65 watts RMS (200 watts peak power)
  • frequency response 58-20,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 2-1/8"
  • warranty: 2 years
  • Our 60-day money-back guarantee

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Features and Specs

Features and Specs
General
Speaker Size
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5 1/4
Design
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2-way
Tweeter Design
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3/4" Dome
Tweeter Composition
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Kortec
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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90 dB
Frequency Response
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58 - 20k Hz
RMS Power Range (Watts)
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2-65
Peak Power Handling (Watts)
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200
Impedance (Ohms)
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4
Top-mount Depth (Inches)
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2 1/8
Bottom-mount Depth (Inches)
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N/A
Cutout Diameter or Length (inches)
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4 9/16

Product Research

Product Research
What's in the box?

Download owner's manual

  • 2 Woofers
  • 2 Tweeters
  • 2 Crossovers
  • 2 Woofer grilles
  • 2 Foam woofer gaskets
  • Two 8" Lengths of speaker wire for the woofer (each with quick slides on one end and bare wire on the other)
  • 2 Tweeter angled flush mounts
  • 2 Tweeter angled surface mounts
  • Eight 1" Self-tapping Allen head screws
  • 8 Speed clips
  • Four 13/16" Self-tapping screws
  • Allen wrench
  • Allen wrench driver attachment
  • Four 3/4" Self-tapping screws
  • Two 1/2" Bolts
  • Two 3/8" Bolts
  • Two 2-piece metal tweeter spring mounting clips
  • 4 Butt connectors
  • Installation Instructions
  • Warranty information
  • 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.

Woofer
Tweeter
Crossover

Woofer

Woofer: The SX50 component system is equipped with copolymer woofers with butyl rubber surrounds. Each woofer has a neodymium magnet, the compact size of the magnet allows SX 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.

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

Tweeter

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 tweeters come with angled flush mount and angled surface mount brackets.

Tweeter Dimensions:

  Frame Width Frame Length Cutout Width Cutout Length Mounting Height Mounting Depth
Angled Flush Mount 1.846" 2.208" 1.472" 1.349" 0.973" 0.622"
Angled Surface Mount 1.846" 1.938" N/A N/A 1.718" 0.713" Screw Depth

Crossover

Crossover: All SX speakers feature specifically tuned crossovers to deliver the best blend between the tweeter and woofer. The SX50 system comes with separate two-way adjustable crossovers. The crossovers can be mounted separately or docked together and mounted as one piece. You can adjust the tweeter output level by placing the supplied jumper on the appropriate terminals. Choose between a flat (0dB attenuation/factory setting) or an attenuated output of -2dB or -4dB. No crossover frequency or slope information was provided by the manufacturer.

Crossover Dimensions: Length=6.664", Height=1.464", Width=1.716" (individual), Width=3.374" (docked together)

 

Product Reviews

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1-3 of 3 items Sort Results By: Date Reviewed | Rating | Helpfulness
 
4 out of 5

Boston Acoustics SX50

Written By Daniel, New Jersey on Saturday, February 21, 2009
 
I find these to be great all around speakers. Not a ton of bass, but they are only 5.25 inch speakers, so I wasnt expecting much. Mid bass is punchy and clean, and the sound is smooth and accurate all the way up. I have them running off a Ecipse head unit and amp and paired with an eight inch Solo Baric. With just a little tweaking the overall sound is super clear and realistic. Installation instructions are minimal, and even the flush mount option is not very "flush". That being said, mine went off without a hitch. Took one practice run mounting a tweeter to a piece of cardboard before touching my truck and the voila. In short amount of time I had great looking, great sounding install. Overall I am very happy with this purchase.
Was this review helpful?    Yes | No
 
4 out of 5

Boston Acoustics SX50

Written By dangerkitty121, North Carolina on Monday, November 20, 2006
 
These speakers are amazingly clear and give excellent, accurate reproduction. They are not going to reproduce low end very well, although the SX60 6 1/2" components don't much more frequency response at the low end.

I mounted the tweeters in the sail panels of my Civic and am very pleased with the sound imaging and reproduction, especially at the price. I paired with an Alpine MRP-F250 amp which doesn't push as much wattage as these speakers are rated for, but they sound beautiful despite that. If you're looking for accurate sound that's crystal clear, these are an excellent choice.

The low end response is poor and the directions included were unclear if not wrong for certain tweeter mounting configurations, but overall these are great speakers. I recommend them, but you'll need a sub if you want heavy low end.
13 out of 14 people found this helpful
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4 out of 5

Perfect Fit

Written By Brian, Texas on Sunday, March 19, 2006
 
Before I start I was a USAC and IASCA competitor in the mid and late 90's. So my review is paired agianst what I have heard over the years.I ordered these to replace the OEM speakers in my 2005 F250. The supplied plates from crutchfield for the 51/4 mounted perfectly and easily. The 51/4 mid sound good and reproduces midrange well. These do not have the frequency range I expected though. They do sound good but not great. I measured and found that 61/2 speakers will fit with little mods. 61/2 would be a better option that will give you that full range of frequencies and give you a more musical reproduction across a larger frequency range. Although crutchfield says they won't fit. The highs are bright and full and sound great for this price range. Remeber these speakers are only 51/4 and will give virtually no bass response at all in the low frequencies. If only a 51/4 will fit for the price this is a great set of speakers.
97 out of 116 people found this helpful
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1-3 of 3 items

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Installation Tools
The right tools will help keep your installation simple and clean.
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For a more in-depth review and enhanced detailed information on the Boston Acoustics SX50, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_065SX50/Boston-Acoustics-SX50.html ).

Boston Acoustics SX50