Mackie HR824 Studio Monitors Mackie HR 824 - the STANDARD in reference Monitors!! Start Price USD 500.00 Current Price USD 500.00 Time Left - Bid Count 0 Buy It Now Price USD 750.00 Reserve Price - Start Time Monday, October 06, 2008 End Time Thursday, October 09, 2008 Location Syracuse, IN See more about 'Mackie HR824 Studio Monitors' Description I am the original owner and have never moved these out of my home studio studio.  They have never been exposed to any outdoor elements or indoor smoke.  They are in absolute MINT condition...not a scratch on them!  Included in the price are a pair of balanced 2 meter Monster XLR to TRS (1/4") extreme high quality audio cables (a $60 value).  I do not have the original boxes but they will be shipped with extreme care!  Please, only buyers with PayPal approved accounts and no bidders or buyers with zero or negative feedback!! Below are the specs for the HR824: Enclosure Materials and Construction 3/4-inch (19mm) thick MDF construction with 1-inch (25.4mm) thick MDF front panel with radiused edges to minimize diffraction. Proprietary exponential wave guide for controlled, wide dispersion from high-frequency driver. Internal "H" brace adds to cabinet stiffness. Open cell adiabatic "foam fill" acoustic damping material absorbs internal reflections, preventing delayed sound coloration. Flush-mount connector system allows monitor to be placed against a wall without need for connector clearance. Transducers Low-frequency driver 8.75-inch (222mm) die-cast magnesium frame, mineral-filled polypropylene cone, oversized magnet structure, and over 16mm cone excursion. High-frequency driver 1-inch (25.4mm) viscous edge-damped aluminum dome with ferrofluid-cooled voice coil. Passive Radiator 6-inch x 12-inch (152mm x 305mm) elliptical flat cone composed of aluminum honeycomb/phenolic with variable thickness filleted edge neoprene surround, mass-loaded, acoustic insulated. Crossover Section Crossover Type Modified Linkwitz-Riley, 24 dB/octave @ 1800Hz Sensitivity 0 dBu nominal Input Impedance 20k ohm, balanced bridging Compressor Independent high and low frequency overload detection Equalization Acoustic Space Equalization (at 40Hz) A = -4dB / B = -2dB / C = flat Roll Off EQ -3 dB@37Hz, 2nd order transitional high-pass filter-3 dB@47Hz, 4th order Chebyshev high-pass filter-3 dB@80Hz, 4th order Butterworth high-pass filter High Freq. EQ ± 2 dB @ 10kHz, shelving Acoustic Section Free Field Frequency Response ±1.5 dB, 39Hz to 20kHz Lower cutoff frequency -3 dB @ 37Hz Upper cutoff frequency -3 dB @ 22kHz Sound Pressure Level at 1 meter, -7.5dBu into balanced input 100dB SPL @ 1m Maximum peak SPL per pair 120dB SPL @ 1m Maximum short term SPL on axis, half space 80Hz to 2.5kHz 111 dB SPL @ 1m Residual noise (maximum gain, 600 ohms source, 20Hz-20kHz bandwidth) < 8dB SPL @ 1m Low-frequency amplifier: Rated power output 150 watts, 4 ohm load Burst power output: 350 watts Distortion THD < 0.035% SMPTE IMD < 0.035% DIM 100 < 0.035% Slew Rate > 35V/µs Signal-to-Noise Ratio > 102 dB, referenced to 150 watts into 4 ohms High-frequency amplifier: Rated power output 100 watts, 6 ohm load Burst power output 210 watts Distortion THD < 0.035% SMPTE IMD < 0.035% DIM 100 < 0.035% Slew Rate > 35V/µs Signal-to-Noise Ratio > 102 dB, referenced to 100 watts into 6 ohms General Power Consumption 135 watts with musical program, loud mix 18 watts quiescent (idle) 8 watts in Standby mode AC Dropout Voltage 120V AC versions 80V AC 240V AC versions 160V AC Weight 32.5 lb. (14.77 kg) Place a Bid!