Monitor 45B

SKU 1036
Two-way bookshelf loudspeaker
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The new standard for classic performance

High efficiency design in a dual-driver bookshelf size gives you more options for high performance audio. Let the 45B reveal the classic Polk sound (open, spacious and clear) in mid- to large-sized rooms (driven by even a modestly-powered amp or receiver). The 45B mounts on the wall, or on stands (available separately).

Monitor 45B Features:

  • 1-inch (25mm) silk/polymer composite Dynamic BalanceĀ® dome tweeter with powerful neodymium magnet structure delivers clear and detailed high frequency response for realistic reproduction of vocals and instruments.
  • Dual 5 1/4-inch composite Dynamic Balance drivers are lightweight and stiff with good damping for high efficiency, excellent bass and midrange clarity with lower distortion.
  • Small-diameter driver design delivers wide dispersion, better mid-range, and more detailed bass response for an open, "box-less" three-dimensional sound.
  • Non-resonant all-MDF enclosure construction with 3/4-thick baffles ensures cleaner, clearer, more lifelike sound quality.
  • Crossovers use mylar bypass capacitors for more detailed high frequencies.
  • 5-way binding post connectors, allowing for more secure hook-up options.
  • Monitor Series speakers are modern living accessories that make a stylish statement in either black or cherry wood grain finish, with Titanium faces.
  • 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.
Dimensions - Product Weight (each) 16.00 pounds
Dimensions Cabinet Dimensions - Depth 12 (30.48cm) "
Dimensions Cabinet Dimensions - Height 15 3/4 (40.01cm) "
Dimensions Cabinet Dimensions - Width 7 (17.78cm) "
Driver Complement Midrange - Diameter 5 1/4 (13.34cm) "
Driver Complement Midrange - Quantity 2
Driver Complement Midrange - Type Dynamic Balance bi-laminate composite cone driver
Driver Complement Tweeter - Diameter 1 (2.54cm) "
Driver Complement Tweeter - Quantity 1
Driver Complement Tweeter - Type Dynamic Balance silk/polymer composite dome
Electrical - Efficiency 89 dB
Electrical - Inputs 5-way binding posts
Electrical - Lower -3dB Limit 57 Hz
Electrical - Nominal Impedance 8 ohms
Electrical - Recommended Amplifier Power 20-125 watts per channel
Electrical - Total Frequency Response 47Hz-25kHz
Electrical - Upper -3dB Limit 24 kHz
Shipping - Total Shipping Weight tbd pounds
Shipping - Unit of Measure pair
Warranty - Speaker Warranty 5 years parts and labor (original purchaser)

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