Sony SA-WM250 100-Watt Active Subwoofer

by Sony

Product Details

• Product Dimensions: 11 x 15 x 14 inches ; 25 pounds
• Shipping Weight: 27 pounds
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B00026KYFS
• Item model number: SAWM250
• Average Customer Review: 4.7 out of 5 stars  See all reviews (55 customer reviews)
• Amazon Best Sellers Rank: #67,510 in Electronics (See Top 100 in Electronics)

Product Description

Add some punch to your home entertainment system with Sony's SA-WM250 subwoofer. It features a built-in 100-watt amplifier and an 8" long-throw driver. The bass-reflex design provides really low bass, and the phase switch helps you get the subwoofer in the same phase as the rest of your speakers. The SA-WM250 is an inexpensive way to bulk up your system.

Customer Reviews

Most Helpful Customer Reviews

38 of 39 people found the following review helpful:

5.0 out of 5 stars This subwoofer completes music and movie audio, November 9, 2005

By 

Douglas H. Haden (Ridgecrest, CA United States) - See all my reviews

Amazon Verified Purchase

This review is from: Sony SA-WM250 100-Watt Active Subwoofer (Electronics)

I bought the Sony SA-WM250 subwoofer to augment my Sony STR-DE998 7.1 Channel Surround Sound Audio/Video Receiver and Bose speakers.
I had some trouble getting the 250 to work but the problems were in the receiver and the operator, not the subwoofer. If you use the 998, you have to both activate the subwoofer and use a sound mode that uses a subwoofer. Most of the huge number of the 998's sound modes will drive a subwoofer, but you can waste a vexing afternoon trying to get it working if perchance you are testing using one of the simple modes. In addition to the hard to follow mode descriptions in the manual, you can tell whether a sound mode uses a subwoofer just by selecting a mode and looking at the little active-speaker diagram on the display. You'll see an S in a box if the mode supports a subwoofer.

I've not had a crossover-frequency control on my previous subwoofers. The 250's crossover control (one of two knobs, both on the subwoofer's back; the other is the volume control), adjusts the point at which the 250 starts subwoofing. You can have the subwoofer respond to the very lowest frequency sounds or all below whatever point you select. I found it unexpectedly useful.

My 998 receiver has a subwoofer output but you should be able to use the 250 subwoofer on most sound sources by setting the crossover control to have it do its thing with just the lower frequency sounds.

As to how well the SA-WM250 works: I am not an audiophile, but I was dissatisfied with the sounds from my five Bose speakers. Well, not at first, but voices from my videos and TV sounds were flat. The moment I had the 250 working, I knew it was just what was missing. I was even happier after I played with the crossover and volume controls.

I was slow to add a subwoofer because I don't need plaster-cracking thumps to enjoy my audio. Nevertheless, our world does vibrate us with low frequency sounds and at least my body needed some of that to complete movie and music audio. On the other hand, the 250 has enough oomph to satisfy the most demanding rocker. If you need a subwoofer to untie your shoelaces, the 250 should meet your needs. If you think you might need even more subwoofing, you could buy the 250's big brother, the Sony SAWX700 250 Watt Active Subwoofer.

Finally, something has to be said about the cost. I receive more for my dollar with the 250 than any other component of my home theater system.

29 of 32 people found the following review helpful:

5.0 out of 5 stars Amazing, January 29, 2005

By 

Sherin Emad Barsoum "70's Music fan" (Alexandria, Bulkley Egypt) - See all my reviews
(REAL NAME)   

This review is from: Sony SA-WM250 100-Watt Active Subwoofer (Electronics)

I own a 500W Home Theater system with an included passive subwoofer. I wanted to upgrade my system and found this SONY active subwoofer in Radio Shack. I decided to buy it because it's a SONY, and for its affordable price and specifications.
And WOW what a sound difference after installing it.. An amazing bulky sound with a completely different music atmosphere specially when playing 5.1 channel DVD's.
The Speaker is nicely looking, video shielded, with a volume control, and a cut frequency control. There is a phase selection knob, a monoaural jack for connecting to a digital receiver (that's the one I use), and connections to the small satellite speakers of the system. Even the monoaural cable and the speaker's cables are included. What could I wish more?
I recommend this subwoofer for anyone seeking to upgrade his sound system with an affordable price and great specifications.

10 of 10 people found the following review helpful:

5.0 out of 5 stars Amazing performance - regardless of the price - the missing link, September 12, 2005

By 

Dr. G. "Dr. G." (South Florida) - See all my reviews

This review is from: Sony SA-WM250 100-Watt Active Subwoofer (Electronics)

I have a high-end Sony A/V receiver as the foundation of my A/V system. I added this powered subwoofer to replace a passive unit from Cambridge Soundworks. The difference is stunning! The SONY adds bass information that goes unheard otherwise. On music, it creates a wonderful sense of fullness. On movies and DVDs, this is the missing link that takes you into the movie theatre. My next addition will be a pair of bass transducers to attach to the sofa and chairs.