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QSC
QSC HPR181i Powered PA Subwoofer
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QSC HPR181i Powered PA Subwoofer

If you're looking for an outstanding powered subwoofer, the QSC HPR181i rivals nearly any other 18 inch competitor models. Packed with a 18 inch low frequency driver, this sub really kicks bass. Based on the RMX series amplifiers, the power section of this unit is matched exactly to the speaker to deliver the ultimate volume to power ratio. Plus it's built to stand up to even the most unforgiving use.

SPECIAL - Shiny Irregular Finish
During a recent production run, a batch of HPR speakers were coated with non-standard shiny paint. As a result, their finish is a bit more reflective than QSC's typical flat-black enclosures.

As you'll see in the above irregular finish images, the difference is barely noticeable. Still, QSC's commitment to quality keeps them from offering these as new. The pristine sound quality remains the same, so this is your chance to save some money!

Just choose the Shiny Irregular Finish option and you'll get the reduced price. These speakers are fully covered by QSC's standard 3-year warranty, with the same free upgrade to the 6-year warranty when you register them online at QSC's website. Order today and save!

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HPR181i Specifications
  • Configuration : 18 inch powered loudspeaker
  • Transducers : 18 inch cone transducer with 4 inch voice coil
  • Frequency Response (-3 dB) 1 : 45 Hz - 95 Hz
  • Frequency Range (-10 dB) 1 : 39 Hz - 145 Hz
  • Nominal Coverage, -6 dB : 90° x 40°
  • Maximum SPL (1 meter) : 134 dB peak
Amplifier
  • Power output : 700W Class H,
  • Input impedance : 22k balanced, 11k unbalanced
  • Controls : Gain, Front LED On/Off, Power, Circuit breaker, Phase
  • Indicators :Power, Signal, Limit
  • Cooling : Convection
  • Amplifier protection : Thermal and Output Limiting, Output Short Circuit, Overtemperature Muting, Driver DC Protection
  • Current consumption at 120 VAC : (1/8 power EIA noise) 2.2A
  • Enclosure : Painted Birch plywood
  • Finish : Black textured paint
  • Grille : Powder coated 16 gauge steel
  • Connectors : Balanced female XLR line level input x 2 (L+R), Balanced male XLR full range line level throughputs x 2 (L+R) Male XLR low-cut line level outputs x 2 (L+R)
  • Dimensions : 28 H x 23.5 W x 23 inches D (711mm x 597mm x 582mm)
  • Net weight : 127 lbs. / 58 kg

 
 
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Download Rebate (PDF) 

$150 Rebate!
Receive a QSC Reward Visa Prepaid Card when you purchase a qualifying HPR loudspeaker or a PLX2 or RMX Amplifier between November 1, 2008 and January 31, 2010. Via Mail In Rebate.

User Guide 7.7 MB 

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"American Musical Supply is the best way to purchase items if you're a musician on a budget. Their Easy Payment Plan is great and it helps you get musical equipment without breaking the bank. It's a musican's dream web site." Oct '09