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Wolo (4003) 100 Watt Siren Speaker

4.1 4.1 out of 5 stars 66 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Wolo
Model Name 100-Watt Compact Siren Speaker
Mounting Type Wall Mount
Speaker Maximum Output Power 100 Watts
Item Weight 3 Pounds

About this item

  • Compact high performance speaker
  • Designed for easy versatile mounting, especially in tight under the hood applications using the heavy-duty steel swing bracket that is provided
  • The speakers housing is constructed from corrosion resistant metal that is painted, lightweight and rugged so as to withstand the toughest conditions
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Product Description

The Wolo 4003 compact high performance speaker is designed for easy versatile mounting, especially in tight under the hood applications using the heavy-duty steel swing bracket that is provided. The speakers housing is constructed from corrosion resistant metal that is painted, lightweight and rugged so as to withstand the toughest conditions.

Product information

Technical Details

Additional Information

Warranty & Support

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Wolo (4003) 100 Watt Siren Speaker

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Product guides and documents

Installation Manual (PDF)

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
66 global ratings

Customers say

Customers like the quality, durability, performance, ease of installation, and value of the speakers. For example, they mention it's loud, durable, and difficult to damage. Some are happy with fit.

AI-generated from the text of customer reviews

31 customers mention24 positive7 negative

Customers like the quality of the speakers. They say it's loud, compact, and does not seem muffled at all. Some customers also mention that the siren quality is excellent and the PA transmits their voice clearly. They also say it easily mounts in their ride and hooks up their noise makers.

"...It is definitely loud and clear. Instead of having to buy noise makers, just download an app on your phone and play it through the mic...." Read more

"...through a very real hurricane it works perfectly and does not seem muffled at all. As I said, so far, so good." Read more

"We mounted these on our park ranger atv's. Siren quality is excellent. PA quality is marginal...." Read more

"This speaker is really loud and very durableThe metal is thick and strong mounting was easy and stayed put.Bolts stayed together..." Read more

18 customers mention18 positive0 negative

Customers are satisfied with the durability of the speakers. They mention that it is solidly built, sturdy, and difficult to damage. The metal is thick and strong, and the speaker has weathered very little.

"...Great speaker at a great price...well worth it. It is also very heavy duty an can see it work great on commercial/fleet vehicles." Read more

"...So far, so good. It is EXTREMELY loud, weighs a ton and seems to be built very well...." Read more

"This speaker is really loud and very durableThe metal is thick and strong mounting was easy and stayed put.Bolts stayed together..." Read more

"...It is a very rugged speaker and would be difficult to damage. I have an amplifier in my vehicle that uses this external speaker...." Read more

14 customers mention12 positive2 negative

Customers like the performance of the speakers. They say it works well, is plenty loud, and has no issues so far. Some mention that the stationary test seemed to go well.

"...heavy rainstorms and driving through a very real hurricane it works perfectly and does not seem muffled at all. As I said, so far, so good." Read more

"...Weathered very little look almost new still andStill works like new since 2012" Read more

"...on Firetrucks and Military vehicles, and I must say, It looks pretty Epic on my car. I have it wired to a Whelen Siren/PA system...." Read more

"Small and compact. Mounted with out issue and hooked up with ease. Works well. is plenty loud. some people reviewed it had not holding up...." Read more

8 customers mention8 positive0 negative

Customers find the speakers easy to install. They mention that the metal is thick and strong, making mounting simple. Some say the speakers sound great and are plenty loud.

"...The metal is thick and strong mounting was easy and stayed put.Bolts stayed togetherWeathered very little look almost new still and..." Read more

"Small and compact. Mounted with out issue and hooked up with ease. Works well. is plenty loud. some people reviewed it had not holding up...." Read more

"...For a small package it was pretty heavy. Its easy to install too which is a good plus" Read more

"I found the speaker to be very heavy duty and easy to install...." Read more

8 customers mention8 positive0 negative

Customers appreciate the value of the speaker. They say it is a great product at a reasonable price.

"...Great speaker at a great price...well worth it. It is also very heavy duty an can see it work great on commercial/fleet vehicles." Read more

"...Price was good but not good when you factor in the life of unit. I think I will go back to buying Code 3 speakers." Read more

"its loud compact and a great price, have had mine for a year now and its runs really well no complaints" Read more

"...Way better than the $25 other speaker I had. Worth the money for a better product." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the fit of the speakers. They mention that it fits behind the grill of their Wrangler, and that the quality of the product is good.

"...and it was a perfect fit...." Read more

"Small and compact. Mounted with out issue and hooked up with ease. Works well. is plenty loud. some people reviewed it had not holding up...." Read more

"Works great. Fits behind the grill of my Wrangler." Read more

"...FIRST MIND WILL TELL YOU THAT THE QUALITY OF THE PRODUCT IS GOOD REGARD WINGS PRODUCT DIMENSIONS ARE ACCURATE THE SHIPMENT HAD BEEN VERY WELL..." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the weight of the speakers. They mention that it's pretty heavy for a small package, and that it works perfectly.

"...So far, so good. It is EXTREMELY loud, weighs a ton and seems to be built very well...." Read more

"When paired with a Whelen 100W PA it was not as loud as expected. Very heavy and seems to be well made...." Read more

"...For a small package it was pretty heavy. Its easy to install too which is a good plus" Read more

"this siren was a good deal. price was good. very heavy speaker. works perfectly. no problems. mount is user friendly, simple to install" Read more

Top reviews from the United States

S. Joseph
5.0 out of 5 stars SOUNDS AWESOME, COMPACT& HEAVY DUTY!
Reviewed in the United States on January 14, 2013
Verified Purchase
I got this PA speaker for my 01 Yukon Denali. with the provided mounting bracket, I was able to mount it behind the grill(i like things looking as clean and stock as possible) and it was a perfect fit. I also painted it black so it can't really be seen but can definitely be heard!!! I have it hooked up to my cobra 29 lx cb radio that has a PA speaker outlet. You do need a mono plug to connect the speaker wires to so it will be accepted by the cb radio output. It is definitely loud and clear. Instead of having to buy noise makers, just download an app on your phone and play it through the mic. Great speaker at a great price...well worth it. It is also very heavy duty an can see it work great on commercial/fleet vehicles.
7 people found this helpful
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Lucas D'Angelo
5.0 out of 5 stars So far, so good. Very happy with this speaker
Reviewed in the United States on August 25, 2014
Verified Purchase
I have this speaker installed in my truck as the speaker for a Whelen Air Horn/Siren unit. It's mounted semi behind my license plate up front so while somewhat protected it is still exposed to the elements. So far, so good. It is EXTREMELY loud, weighs a ton and seems to be built very well. Conveniently enough, water does not collect in it as I thought it would, and even after several heavy rainstorms and driving through a very real hurricane it works perfectly and does not seem muffled at all. As I said, so far, so good.
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Kim Lewis
3.0 out of 5 stars Wolo 100 watt speaker
Reviewed in the United States on May 28, 2013
Verified Purchase
We mounted these on our park ranger atv's. Siren quality is excellent. PA quality is marginal. When trying to get the attention of hikers or people who have traveled out of bounds the pa feature is important to us. Most people report that they cannot understand the words we are speaking. However, the siren aulity is great
One person found this helpful
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Chris Kringle
5.0 out of 5 stars Extremely loud
Reviewed in the United States on December 23, 2013
Verified Purchase
This speaker is really loud and very durable
The metal is thick and strong mounting was easy and stayed put.
Bolts stayed together
Weathered very little look almost new still and
Still works like new since 2012
5 people found this helpful
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Larry Horner
5.0 out of 5 stars Wolo 4003 Compact 100 Watt High Performance Speaker
Reviewed in the United States on February 21, 2014
Verified Purchase
This device works great in all kinds of weather. I have this speaker mounted on my winch mount. It is a very rugged speaker and would be difficult to damage. I have an amplifier in my vehicle that uses this external speaker. It provides a loud horn tone and allows you to transfer audio from your commercial radio to this external speaker, additionally acting as a PA. I highly recommend this speaker for any environment. There are no cons for it.
One person found this helpful
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Tice
5.0 out of 5 stars Just what I needed
Reviewed in the United States on November 29, 2012
Verified Purchase
I love this thing! It's very heavy duty! I've seen them on Firetrucks and Military vehicles, and I must say, It looks pretty Epic on my car. I have it wired to a Whelen Siren/PA system. The Siren is loud and authoritative, and the PA transmits my voice clearly. Couldn't be happier.
2 people found this helpful
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M. W. C.
4.0 out of 5 stars it is a good deal. I drive a diesel truck so for ...
Reviewed in the United States on March 7, 2015
Verified Purchase
Just installed this is my vehicle for my CB radio. It seems much louder than my previous PA horn, but not as loud as I was expecting. Beware, it is very large. It took me a long time to find a feasible location for the installation. I would say for the money, if you want a little additional sound, it is a good deal. I drive a diesel truck so for me I need the little extra. If you don't need that additional sound, go for a cheaper PA horn it will work just fine and will be easier to install in the engine compartment.
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Capt Chris
5.0 out of 5 stars so far its doing just fine, no issues (3 months so far)
Reviewed in the United States on August 1, 2014
Verified Purchase
Small and compact. Mounted with out issue and hooked up with ease. Works well. is plenty loud. some people reviewed it had not holding up. so far its doing just fine, no issues (3 months so far)
2 people found this helpful
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