Get rich sound from these compact bookshelf speakers

Don't let the StudioMonitor 450s' size fool you — these compact bookshelf speakers belt out big bass that adds depth and richness to your movie soundtracks and stereo music. Each has a 6-1/2" woofer and an 10" bass radiator that extends their low-frequency response down to 24 Hz. A 1" aluminum dome tweeter provides smooth highs that blend beautifully with the mids and lows.

Grille off shot

Solid build for impressive sound

tweeter

The pure aluminum dome tweeter produces sparkling, clear highs.

The StudioMonitor 450s 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 450s 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 450s with Definitive's C/L/R2002 center speaker, ProMonitor 800 surrounds, and SuperCube III or ProSub 800 for big home theater sound.


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Product Highlights:

  • video-shielded to prevent magnetic distortion on tube TVs
  • frequency response 24-30,000 Hz
  • sensitivity 90 dB
  • 8-ohm impedance
  • handles up to 225 watts
  • 1" pure aluminum dome tweeter
  • 6-1/2" woofer
  • 10" passive bass radiator
  • keyhole slots
  • 5-way binding posts
  • high-gloss piano black finish
  • 8-3/8" W x 13-1/8"H x 11-7/16"D
  • warranty: 5 years
  • Our 60-day money-back guarantee

Why choose bookshelf speakers?

Bookshelf speakers may be small in size, but they can deliver surprisingly big sound. Some ultra-compact models even fit on a desktop. Most are right at home in tight spaces like shelves, so they're usually good choices for your home theater's rear channels. For the best performance, try placing bookshelf speakers on solid speaker stands to help the sound really "open up." If you want full bass impact, add a powered subwoofer and enjoy punchy sound that's as deeply satisfying as that of floor-standing speakers.

Hands-on research

What's in the box?

Download owner's manual

  • 2 Black bookshelf loudspeakers
  • 2 Mounting brackets
  • 4 Mounting screws
  • Owner's Manual
  • Online Product Registration card

Product Research

Overview: The Definitive Technology StudioMonitors are compact bookshelf loudspeakers designed for use in audio/video entertainment systems. Because the StudioMonitors are true full-range speakers with extended low-frequency response they deliver superb performance both as stand-alone speakers and when combined with separate subwoofers. Due to their compact size, wide-range, high power handling, and natural articulate clarity, they are ideal for use as front, center, or surround speakers in a home theater environment. The StudioMonitor 450 loudspeakers feature a high-definition 6-1/2 inch bass/midrange driver with cast magnesium basket pressure-coupled to a 10-inch low bass radiator for outstanding bass response, and an annealed pure aluminum 1-inch dome tweeter for smooth highs. The StudioMonitor 450s use a non-resonant monocoque cabinets featuring elegant piano-gloss black lacquer end cap and wraparound grille cloth styling.

Driver Technology
Enclosure Design
Connections
Mounting Options

Driver Technology

Pressure Coupled Radiator Design: The StudioMonitor bookshelf loudspeakers provide clear, high-definition sound by pressure-coupling a 6-1/2 inch driver to an 10-inch low bass radiator cleverly placed on the side of the speaker's cabinet. This technique increases the lower-midbass radiating area of the speaker without increasing the size of the enclosure. The result is a warm and life-like sound.

High-Definition Cast-Magnesium Basket Drivers: Each StudioMonitor 450 utilizes a 6-1/2 inch high definition cast basket bass/midrange driver for significant performance advantages in the areas of bass reproduction, lifelike midrange clarity and dynamic range. This bass/midrange driver incorporates a deeply drawn mineral-filled polymer cone, combined with butyl rubber surround and dust-cap, a high temperature vented voice coil, and a massive magnet structure. This combination of features assures high definition, superb transient response, high efficiency, high power handling and extended bass response. In addition, they are assembled utilizing an aerodynamically designed, magnetically inert, cast-magnesium basket to minimize internal reflections off the back of the cone and preserve structural and magnetic integrity under all conditions.

Moving Coil Pure Aluminum Dome Tweeters: Each StudioMonitor 450 utilizes a specially annealed pure aluminum 1-inch dome tweeter, suspended by a silk surround and acoustically loaded by a precisely configured phase plug/lens, as well as engineered to assure perfectly controlled, linear movement. This results in smooth extended response (beyond 30 kHz), greatly reduced distortion, improved transient response, wider dispersion and notably higher definition. Magnetic fluid damping is incorporated for ultra high power handling.

Phase-Coherent Linkwitz-Riley Crossover Networks: The sophisticated Linkwitz-Riley crossover network design used in the StudioMonitor 450s equalizes the drivers for linear phase and frequency response. This preserves the phase coherence, transient response and dynamic integrity of the signal for lifelike music and home theater reproduction in your home.

Break-In Period: The StudioMonitor loudspeakers will sound good right out of the box; however, an extended break-in period of 20-40 hours or more of playing is required to reach full performance capability. The break-in period allows the suspensions to work in and results in full bass, a more open midrange, and smoother high frequency reproduction.

Enclosure Design

Non-Resonant, Low-Diffraction Cabinet: The monocoque cabinets are constructed of high-density medite with 1" thick front and rear baffles, foam damping pads and internal braces. This virtually eliminates resonant cabinet coloration which could otherwise interfere with the pure sound produced by the high definition drivers. The design of the StudioMonitor's cabinets reduce diffraction to an absolute minimum by flush mounting drivers on extremely narrow baffles with radial edges, which are covered by a "frameless grille sock".

Connections

Connections: Each StudioMonitor 450 is equipped with a pair of gold-plated, 5-way binding posts to attach your receiver's speaker wire.

Mounting Options

Placement: The StudioMonitor 450 loudspeakers are mirror images of one another, with the side-mounted, pressure-coupled woofers located on the opposite sides, so they may be set-up with both woofers facing in or both woofers facing out. Facing the woofers in or out will vary the sound somewhat and which way is best will vary with your room. The StudioMonitor 450 loudspeakers can also be position either vertically or horizontally. If it is used horizontally, make sure the pressure-coupled woofer is facing up. There should be at least 1 to 2-inches of clearance between the speaker's side-mounted woofer and the wall.

Mounting: The StudioMonitor 450s can be simply placed on a bookshelf, table-top, or speaker stand. They can also be hung on the wall using the supplied keyhole brackets.

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.

Definitive Technology StudioMonitor 450 Reviews

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Definitive Technology StudioMonitor 450

Written By Mark, Wheaton,Md on Friday, August 21, 2009

These speakers sound great! They have a very clear midrange.The bass is warm and tight. They sound much better than bookshelfs I heard at three times this price! All genre of music sounds terrific. Classical,Jazz and Rock.

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