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Boston Acoustics PRO50SE (Pro50 SE)

5-1/4" 2-way PRO Series Component System with 1" Dome Tweeters (PRO50-SE)


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Boston Acoustics PRO50SE (Pro50 SE)

5-1/4" 2-way PRO Series Component System with 1" Dome Tweeters (PRO50-SE)


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Boston Acoustic Competition Series

Ever since they were first introduced in 1989, Boston Pro speakers have been creating a sensation. In commemoration of their 25th year in mobile audio, they introduce the Pro SE (Special Edition). With voicing cues taken directly from our acclaimed Boston SPZ line, they take sound quality a step further and bridge the gap between exceptional and absolute top-level performance. The newest Pro speakers deliver huge output without even a hint of distortion, pound out more bass than ever before, and possess a look that’s as gutsy as it is gorgeous. It’s sound and style that’s sure to redefine car audio for decades to come.

Product Features:

  • 5-1/4" PRO Series 2-Way Component System
  • Power Handling:
    • Peak: 500 watts per set / 250 watts each side
    • RMS: 250 watts per set / 125 watts each side
  • Copolymer cone woofer
  • Rubber surround
  • 1" M-1 Anodized alloy dome tweeter
  • Cast aluminum magnet
  • Radiavent cooling
  • Twinstage aluminum heat sink to draw heat away from the voice coil
  • AMD (Amplitude Modification Device) for a smooth high frequency response
  • 3 ohms impedance
  • 1-1/2" voice coil
  • Neodymium magnet structure
  • Top-mount depth: 2-1/4"
  • 1-year Sonic Electronix warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Product History:

Boston Acoustics PRO50SE thumbnail
(newest, current model)
Boston Acoustics PRO50 thumbnail
(previous model, replaced by Boston Acoustics PRO50SE (Pro50 SE))

Speaker Specifications

This is the manufacturer product line of speakers.
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
250 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
125 watts
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
90 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
60 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
3 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
Hi-Res Audio Compatible
This feature refers to if the product is capable of Hi-Res Audio (HRA) playback.
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Safford, AZ

Loud and clear!

September 12, 2012

I would really recommend these speakers, installed them in the dash of my gmc sonoma and wow! These are very loud, very clean! I am running these off of a rockford fosgate t400.4 giving them about 75-85watts. They are 3ohm so make sure your amp can handle them, and you must amp these or they will not sound good. The price on these is super low compared to what they were before boston decided to discontinue their car audio which is sad because they make really good products. I read some people said these sounded crunchy but they must have some settings wrong, or they need to switch the tweeter level down to -3db inside the crossovers, which are very nice and I like the features. I give these a thumbs up all the way around. I have 2 boston spg's which are some beasty subs for my little truck and a set of boston sr6.5's in the doors. After upgrading to the pro's I can turn my system up way more before the subs drowned them out. They sound great from outside my truck with the system full blast, its just that my subs are right behind me and all that sound in a small truck is hard to distinguish when its full blast but after purchasing these its defenantly an improvement in clarity. You wont be disappointed.

10 of 12 found this helpful

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December 11, 2011

I have a K1200lt BMW motorcycle with 2 sets of 5.25 component speakers, 1 set of 6x9 infinity, 1 set is of Boston 5.25 component, 1 set of 5.25 Kapa infinity component. The Boston's I have in the back of the bike along with the 6x9, the front of the bike I have Infinity component set all powered by 6/600 w JL audio. The Boston's sound great, and can stand all the power I give them, and most of the time it's on all the way full blast, I have the infinity in front of the bike and are just a little more sharp. But that can't take as much power. Boston's rms is around 110 Infinity's I have are around 85 rms. All in all I like both. I have been told it's about the best sound system that I've heard on a bike. With rain and bad weather, I really can't say any thing bad about either set. I have had speakers that cost more but did not sound as clear, I have over 100,000 miles on the bike in 6 years, and have been in a lot of rain and still ticking with the Infinity's. I hope the Boston's hold up as long.

6 of 8 found this helpful

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Chattanooga TN

Great Product for the price

October 4, 2011

Excellent sound quality they love power so when I really turn it up vocals are crystal clear over the subs in the back.

5 of 7 found this helpful

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glenwood il

awesme speakers

December 28, 2012

The are the best components i have ever owned.I replaced my 6x9 speakers with 6 1/2 componente and i am very happy i hope boston would consider not stopping production of the these speakers

3 of 4 found this helpful

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Exellent BUT make sure you have a 6.5"driver hole

August 9, 2011

These speakers are very very good. They will pickup every detail and have good power. Make sure you mount the tweeters up front. Most importantly make sure you have a 6.5 driver hole because although they are a 5.25 speaker the driver on it is a 6.5" so for my Cadillac they have to make plates to make it fit. Other than that the sound is very crisp and clear.

3 of 5 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $36.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $20.99

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

Perfect for safely troubleshooting and testing audio systems

Your Price $19.99

Belva Five Piece Installer's Panel Removal Tool Kit

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $15.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $8.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $7.99

Encore Universal Four Door Power Door Lock Kit

Add Power Door Locking and Unlocking while you have the Door Panels removed

Your Price $29.99

NVX SDDK12 Door Kit

Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!

Your Price $47.99

Dynamat Xtreme Door Kit 10435

Enough sound dampening to cover most doors!

Your Price $69.97

Stinger Roadkill Door Kit

Use this to eliminate rattle from your doors!

Your Price $39.95

NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

Your Price $7.99

5" to 5-1/4" Round Foam Speaker Baffles

Creates a tight, acoustic seal behind the speaker to enhance the sound quality.

Your Price $8.99

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $5.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $12.99

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Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Boston Acoustics PRO50SE (Pro50 SE)