This is a powerful midsize speaker. I still use a couple in my setup but don’t need this one anymore. The reason the price is low that I believe that the woofer occasionally makes a flap sound. It is not often and only at certain low frequencies. Everything else works as it should. I’m not even entirely sure it is a problem with the speaker or just source material / receiver. Please see the photos for its condition, which is overall very good except a few small tears in the speaker cloth. Feel free to make an offer.

Speaker has a crack in the plastic on the corner as shown in photos. Speaker works without issues. This is for this one speaker.

Working Condition: ExcellentCosmetic Condition: Poor. Either these arrived in this condition (dont remember) or were roughed up by my son. There are scuffs, scratches, bulges, breaks in the vinyl. See pics - I tried to provide enough detail that buyers are able to judge fairly.Tobacco Exposure: NoService History: NoneMSRP: $398Included: Speaker pair, Factory packaging, Double boxed (2 single factory boxes in one)Shipping: FedEx Ground (CONUS only)Notes: I bought these used on eBay in 16 for my son after I was impressed with them in my little studio rig. We both ran them with a Squeezebox Touch and a little Dared hybrid tube amp. Pretty great tiny rig! Love these speakers for their efficiency, dynamics, and tight punchy lows; but due to health issues must sell all but a couple prized pieces that will go to kids. My son is getting upgraded! hehe Stereophile review:https://www.stereophile.com/content/definitive-technology-studiomonitor-45-loudspeaker Specs:Description: Two-way, port-loaded, stand-mounted loudspeaker. Drive-units: 1 aluminum-dome tweeter, 5.25 woofer. Frequency range: 35Hz–30kHz. Nominal impedance: 8 ohms. Sensitivity: 90dB/W/m.Dimensions: 11 11/16 (297mm) H by 6¾ (172mm) W by 11 11/16 (297mm) D. Weight: 12 lbs. Price: $398/pair.

Brand new still in box never used, only opened once just to take a picture of the back otherwise all wrapped up as new in box.

Very good condition as you can see in the photos. The sound is clear and powerful. Experience superb audio quality with these Definitive Technology StudioMonitor 45 (SM45) bookshelf speakers. Designed meticulously to deliver exceptional sound and a sleek design, these speakers are perfect for any home entertainment system. With wired connectivity, these speakers are easy to set up and use, providing an immersive listening experience for all your audio needs.

Very good condition as you can see in the detailed photos. Both speakers play beautifully.

Condition: Both speakers work and sound great. One speaker has some fabric damage in the corner and the top is a little loose. Nothing that impact sound or function. Potent sound from compact bookshelf speakers Definitive Technology's StudioMonitor 350s deliver deep, rich bass that you wouldn't normally expect from bookshelf speakers. Each has a 5-1/4 woofer and an 8 bass radiator that extends their low-frequency response down to 26 Hz. A 1 aluminum dome tweeter provides smooth highs that blend beautifully with the mids and lows. Solid build for impressive sound tweeter The pure aluminum dome tweeter produces sparkling, clear highs. The StudioMonitor 350s use some of Definitive's best technologies for lifelike upper and midrange clarity. Flush-mounted drivers deliver high and low frequencies to your ears at the same time, for even, realistic sound. Advanced crossovers ensure that each frequency makes it to the right driver, so you hear all the detail and depth of your favorite music and movies. And Definitive Technology clearly paid attention to these speakers' looks — high-gloss black end caps and wraparound grille cloth give them a sleek, modern style. Building a system The StudioMonitor make excellent front left and right speakers in a surround sound or stereo music setup. You can place them on shelf or mount them on your wall using optional brackets. Pair the 350s with Definitive's C/L/R2002 center speaker, ProMonitor 800 surrounds, and SuperCube III or ProSub 800 for big home theater sound. Got wire? Most speakers don't include any. Learn about choosing and installing speaker wire at the Crutchfield Learning Center. Shop our selection of speaker wire. Product highlights: video-shielded to prevent magnetic distortion on tube TVs frequency response 26-30,000 Hz sensitivity 90 dB 8-ohm impedance handles up to 200 watts 1 pure aluminum dome tweeter 5-1/4 woofer 8 bass radiator keyhole slots 5-way binding posts high-gloss piano black finish 6-15/16 W x 10-7/8H x 9-3/4D

No shipping, pickup only in Tacoma WA 98445. Used, very good working condition. Tested with Onkyo receiver.Please watch a video. Some minor scuffs around, speaker cones in excellent condition. One speaker cover/grill has a small plastic tab broken.This video was recorded on my phone, so you cannot hear actual sound quality, but they sound amazing. Speakers work excellent Pickup in Tacoma WA 98445 Please contact John 253 495 4429

Very good condition as you can see in the photos. The sound is clear and powerful. Experience superb audio quality with these Definitive Technology StudioMonitor 45 (SM45) bookshelf speakers. Designed meticulously to deliver exceptional sound and a sleek design, these speakers are perfect for any home entertainment system. With wired connectivity, these speakers are easy to set up and use, providing an immersive listening experience for all your audio needs.

Very good condition as you can see in the detailed photos. Both speakers play beautifully.

Brand new still in box never used, only opened once just to take a picture of the back otherwise all wrapped up as new in box.

Local pickup only. Original owner, extremely well-kept, zero blemishes. These are efficient speakers with an even frequency response and strong bass from the side radiators for their size. After years listening on these, they have often surprised me at how good they can sound. They sound good on a desktop and in a medium room for TV and movies. Mine are easily the cleanest pair of these speakers I’ve seen for re-sale. They’ve been stored in their original box for the past 3 years or so. I’m only selling these since upgraded to several different speakers. Included are the two speakers, no accessories or original packaging. Specs found on Crutchfield here: https://www.crutchfield.com/S-tEJE4iLD9o2/p_735SM450/Definitive-Technology-StudioMonitor-450.html

Condition: Both speakers work and sound great. One speaker has some fabric damage in the corner and the top is a little loose. Nothing that impact sound or function. Potent sound from compact bookshelf speakers Definitive Technology's StudioMonitor 350s deliver deep, rich bass that you wouldn't normally expect from bookshelf speakers. Each has a 5-1/4 woofer and an 8 bass radiator that extends their low-frequency response down to 26 Hz. A 1 aluminum dome tweeter provides smooth highs that blend beautifully with the mids and lows. Solid build for impressive sound tweeter The pure aluminum dome tweeter produces sparkling, clear highs. The StudioMonitor 350s use some of Definitive's best technologies for lifelike upper and midrange clarity. Flush-mounted drivers deliver high and low frequencies to your ears at the same time, for even, realistic sound. Advanced crossovers ensure that each frequency makes it to the right driver, so you hear all the detail and depth of your favorite music and movies. And Definitive Technology clearly paid attention to these speakers' looks — high-gloss black end caps and wraparound grille cloth give them a sleek, modern style. Building a system The StudioMonitor make excellent front left and right speakers in a surround sound or stereo music setup. You can place them on shelf or mount them on your wall using optional brackets. Pair the 350s with Definitive's C/L/R2002 center speaker, ProMonitor 800 surrounds, and SuperCube III or ProSub 800 for big home theater sound. Got wire? Most speakers don't include any. Learn about choosing and installing speaker wire at the Crutchfield Learning Center. Shop our selection of speaker wire. Product highlights: video-shielded to prevent magnetic distortion on tube TVs frequency response 26-30,000 Hz sensitivity 90 dB 8-ohm impedance handles up to 200 watts 1 pure aluminum dome tweeter 5-1/4 woofer 8 bass radiator keyhole slots 5-way binding posts high-gloss piano black finish 6-15/16 W x 10-7/8H x 9-3/4D

Very good condition as you can see in the photos. The sound is clear and powerful. Experience superb audio quality with these Definitive Technology StudioMonitor 45 (SM45) bookshelf speakers. Designed meticulously to deliver exceptional sound and a sleek design, these speakers are perfect for any home entertainment system. With wired connectivity, these speakers are easy to set up and use, providing an immersive listening experience for all your audio needs.

Very good condition as you can see in the detailed photos. Both speakers play beautifully.

Definitive Technology StudioMonitor 45 (SM45) Bookshelf Speakers. I worked in home theater installation and Im clearing out our storage. These speakers are in great condition. We have 4 and they are sold as singles with their original box and literature.High Performance Shelf/Stand Monitor LoudspeakerBDSS™ mid/bass driver with Linear Response Waveguide™ for micro-detail and 3D imagingSecond-generation pure aluminum dome tweeter for clearer high frequenciesHigh-gloss anti-diffraction baffle and shaped enclosures for open, spacious imagingCrossover network with oversized inductors and Mylar capacitors for amazing sound qualityQty Included 1Orientation VerticalHeight 11.69 (29.69 cm)Width 6.75 (17.15 cm)Depth 11.69 (29.69 cm)Weight 12.95 lbs (5.87 kg)Recommended Amplifier Power Per Channel 20 watts ? 150 wattsTotal Frequency Response 35 Hz ? 30,000 HzNominal Impedance 8 ohmsOne 5 1/4 BDSS bass/midrange driver in vented enclosureOne 1 aluminum dome tweeter

Very good condition as you can see in the photos. The sound is clear and powerful. Experience superb audio quality with these Definitive Technology StudioMonitor 45 (SM45) bookshelf speakers. Designed meticulously to deliver exceptional sound and a sleek design, these speakers are perfect for any home entertainment system. With wired connectivity, these speakers are easy to set up and use, providing an immersive listening experience for all your audio needs.

Very good condition as you can see in the detailed photos. Both speakers play beautifully.

One pair. There is damage on one woofer but it actually still works and sounds fine. The other one looks and works great. They sound good for a stereo pair and I did not even know this was damaged until I went to take pics for selling cause they sound fine. They sell new woofers on ebay and I am charging for the price of one and you can pick up an extra woofer later and easily replace. If you use these as surround you can probably getting away without replacing the woofer. Experience high-quality sound with these bookshelf speakers from Definitive Technology. These universal speakers are made of wood and come in a sleek black color. They have audio inputs for hard wire connectivity and boast polypropylene surrounds and an impedance of 8 Ohms. With a 200W RMS power, these speakers are perfect for any home audio setup. The Studio Monitor 350 model delivers a rich and clear sound that will enhance your listening experience.

Upgrade your home audio experience with these high-quality Definitive Technology Studio Monitor 350 Main/Stereo Speakers. Designed to deliver clear and powerful sound, these speakers are perfect for any music lover or home theater enthusiast. With a brand like Definitive Technology, you can trust that you are getting a top-of-the-line product. These wired speakers have a RMS power of 180W and are ideal for front right and left positions. The Studio Monitor 350 model provides an immersive audio experience that will enhance your favorite movies, music, and games. Add these speakers to your home theater setup or use them to amplify your music listening experience. Tested excellent working condition

Definitive Technology StudioMonitor 350 speaker drivers for one speaker. Tested with ohm meter and all good. Includes passive radiator, 5 1/4 woofer and magnetic shielded tweeter. Sold as - is.

SM45 Bookshelf speaker Both speaker are in excellent shape cabinet is perfect only 1 mark on cloth grill but not noticeable.Speakers look better without grills on and sound great n work perfectly