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Polk Audio > 
Item#: N82E16882290276

Polk Audio Monitor Series Monitor 45B Two-Way Bookshelf Loudspeaker (Cherry) Pair

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  • Total Frequency Response: 47Hz-25kHz Upper -3dB Limit: 24 kHz Lower -3dB Limit: 57 Hz
  • 8 Ohms 20-125 watts per channel
  • 89 dB

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews


Polk's Monitor Series has been the gold standard of speakers since the 1970's. The current generation Monitor 45B features high efficiency design in a dual-driver bookshelf size giving you more options for high performance audio. Polk made the enclosures out of MDF to not resonate. They've also included ¾" thick baffles to help produce clear lifelike sound.

The 5.25" cones are made from bi-laminate composite for an optimal balance of weight and rigidity. The small driver delivers a wide open sound and exceptional responsiveness. The 1" tweeter is a fabric/polymer composite driver that responds swiftly to the high efficiency neodymium magnet. The crossovers between the drivers use Mylar bypass capacitors to let all of the details in the higher frequencies shine through.

No matter how good they sound, they have to look good too. Their contemporary look complements today's flat panel televisions and modern decorating styles.

  • newegg Exceptional Sound Quality The Polk Audio Monitor 45B boasts two 5.25" Bi-Laminate composite dynamic balance drivers and a 1" dynamic balance silk/polymer composite dome tweeter to deliver crisp highs and accurate lows for an immersive listening experience.
  • newegg Dual 5-way binding post connectors Dual 5-way binding post connectors allows for more secure hook-up options, as well as bi-wiring and bi-amping flexibility.
  • newegg Critically tuned flared port Critically tuned flared port minimizes port noise ("chuffing") for good low frequency extension with low distortion, resulting in natural, full-bodied sound with rich bass.

Learn more about the Polk Audio Monitor 45B

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Customer Reviews of the Polk Audio Monitor 45B

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  • carl w.
  • 10/10/2014 4:42:49 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsNice center channel speaker

Pros: First off sorry about the typos in my review on the 75T's.
Most people who owe Polk Audio speakers already know Polk has been around for a long time their new line of the Monitor speakers are every bit as good as the older line. I like the new look very clean build I am using the 45B,s as rear surrounds pick these up from New Egg at a great price. Also the matching center 15C very pleased with the soundstage of the whole set up. Like I stated about the 75T,s the 45B's match very well with the 75T's and the center 15C. The reviews are spot on about Polk's new Monitor line. As for New Egg's service, again outstanding and shipping was fast UPS guy was great box's where clean.

Cons: None

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  • scott l.
  • 9/25/2014 6:29:54 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSounds better than expected

Pros: They arrived in two days. Easy hook up. I'm not an audio snob so they sound good to my ear.

Cons: Could have a better finish.

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  • James G.
  • 3/19/2014 12:09:32 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat Buy! Totally Satisfied

Pros: Great Price, Great sound, Great look.
Not the best audio out there but certainly a fantastic option for a home stereo.

Cons: Maybe a bit big (check dimensions) but that's part of why they sound so good.

Other Thoughts: Not much to add that hasn't already been covered. I would recommend for great sound at home without the cost of your first born. I did also get a Polk Sub (10") to go with these. They would be fine by themselves but I'm a bit of an audiophile.

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  • jack w.
  • 2/25/2014 6:00:09 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWOW JUST WOW

Pros: If the 75T WHICH IS STILL COMING is anything as awesome as these badboys, I'm gonna be 1 happy guy. I also recieved the 25c center today. I'm driving them with an old Pioneer VSX 29TX. My Acoustic Research TSW610"s need re-foaming and it's beyond my expertice. Have waited for something to replace them that even comes close. Let me say I am extremely impressed with the center and bookshelfs I will use as surrounds, these little speakers with my PSW505 totally rock the house just on direct setting. I played around with DSP and Theater settings and now watching the voice in THX mode....Just wow..Compaired to my 1,000.00 plus 5 channel mini's. Won't mention Brand, but just these little guys blow it away..Happy shopping, will review when towers arrive from Cali..Can't imagine being dissapointed

Cons: none yet

2 out of 2 people found this review helpful. Did you? Yes No

  • Denis S.
  • 2/24/2014 2:42:18 PM
  • Ownership: 1 month to 1 year

5 out of 5 eggsGreat speakers for the price

Pros: This speakers sound quality is very good, connected to a N A D receiver the sound is clear and well balanced, you will get surprised on how much bass this speakers can play.

Cons: none

1 out of 1 people found this review helpful. Did you? Yes No

  • Stanley R.
  • 12/1/2013 11:14:57 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsgreat sound

Pros: great sound for my sons dorm room. Would be good for more of a room but that is where they are now.

Cons: none

1 out of 4 people found this review helpful. Did you? Yes No

  • Erik E.
  • 11/28/2013 12:43:28 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsLove these

Pros: Great bookshelf speakers, on sale

Cons: none

0 out of 1 people found this review helpful. Did you? Yes No

  • Brian M.
  • 11/17/2013 6:04:12 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPretty Happy

Pros: Well made, removable grill, decent sound, nice veneer finish

Cons: Very Large for a wall mount

Other Thoughts: They never claimed these could be wall mounted (but they can be). They are fairly large and heavy though. They truly are meant to sit on a shelf.

1 out of 1 people found this review helpful. Did you? Yes No

  • Andrew G.
  • 11/6/2013 5:59:23 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent value

Pros: The Polk Audio New Monitor 45B bookshelf speakers are an excellent value. These put out a nice, clean sound, and matches very well with the 65T floor-standing speakers in an attractive cherry veneer finish.

Cons: None so far.

Other Thoughts: I'm currently using these speakers for front wide channels, but I am also considering using them as front height channels, as I think that may help fill the room and provide greater immersion.

2 out of 2 people found this review helpful. Did you? Yes No

  • John S.
  • 10/11/2013 11:34:59 AM
  • Ownership: less than 1 day

5 out of 5 eggsPolk Audio Monitor 45B Two-Way Bookshelf Loudspeakers

Pros: Awesome price, well made, very fast shipping as usual and the sound quality is great for the size.

Cons: It would have been nice to have the double set of connection terminals like an older model set of mine have, for bi-wiring etc., but I'm not really complaining because the price was so good.

The grill is kind of odd because it sticks up past the speaker cabinet on the top, kind of making it look as if it doesn't fit right, but again the price was so good that it's not that big of a problem.

Other Thoughts: Those who complain about there not being enough bass are likely using a low end receiver or their source material is lacking because I had to turn my sub-woofer volume down some.

2 out of 2 people found this review helpful. Did you? Yes No

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Item#: N82E16882290276
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