{"product_id":"mackie-hr824-mk2","title":"MACKIE HR824 mk2","description":"\u003cdiv lang=\"en\"\u003e\n\n  \u003cp\u003e\u003cstrong\u003eMackie HR824 MK2\u003c\/strong\u003e is a two-way \u003ca href=\"https:\/\/wrdtunes.com\/collections\/studio-monitors\"\u003eactive studio monitor\u003c\/a\u003e with an 8.75\" low-frequency driver and a 1\" titanium dome tweeter, bi-amplified by the Twin FR Series system: 150 W for the woofer and 100 W for the tweeter. A free-field frequency response of ±1.5 dB from 37 Hz to 20 kHz and THX pm3 certification place the HR824 MK2 in the segment of monitors built for critical mixing and mastering work in both stereo and multichannel configurations. Rather than a bass-reflex port, the design uses a passive radiator — a 6\" x 12\" mass-loaded elliptical piston — extending bass response to -3 dB at 35 Hz without the group delay distortion typical of ported enclosures at the frequency extremes.\u003c\/p\u003e\n\n  \u003ch3\u003eZero Edge Baffle and waveguide — diffraction eliminated at the source\u003c\/h3\u003e\n\n  \u003cp\u003eThe front baffle is a single-piece aluminum casting with precisely curved edges (Zero Edge Baffle), eliminating the wave diffraction that occurs at sharp MDF corners and generates delayed energy that blurs stereo imaging. The integrated exponential aluminum waveguide controls tweeter dispersion without off-axis SPL loss, maintaining a wide and consistent sweet spot while keeping the on-axis response linear. The active Linkwitz-Riley crossover at 24 dB\/octave with a 1,900 Hz crossover point maintains phase coherence between the drivers. Three Acoustic Space Control positions — Full Space (flat), Half Space (-2 dB shelf at 50 Hz) and Quarter Space (-4 dB shelf at 50 Hz) — compensate for boundary reinforcement from walls and corners without external EQ.\u003c\/p\u003e\n\n  \u003ch3\u003eThree inputs, LF and HF trim, multi-stage protection\u003c\/h3\u003e\n\n  \u003cp\u003eThe rear panel provides two balanced inputs (XLR and 1\/4\" TRS) and one unbalanced RCA, allowing simultaneous connection of an audio interface and a consumer source. Maximum input level is +20 dBu. The three-position LF filter switch sets the high-pass cutoff at 37 Hz (normal), 47 Hz or 80 Hz — the last position prepares the monitor for integration with a subwoofer in a satellite\/sub configuration. The HF shelving EQ at ±2 dB at 10 kHz corrects for room brightness or darkness without affecting the midrange. The protection system includes independent LF and HF overload detection, automatic thermal shutdown and a 5-second output mute on power-up.\u003c\/p\u003e\n\n  \u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e8.75\" LF driver — die-cast magnesium frame, 1.6\" voice coil, fully shielded ferrite magnet\u003c\/li\u003e\n    \u003cli\u003e1\" titanium dome tweeter, ferro-fluid cooled, neodymium magnet, 1\" voice coil\u003c\/li\u003e\n    \u003cli\u003e6\" x 12\" mass-loaded elliptical passive radiator — bass extension to -3 dB @ 35 Hz\u003c\/li\u003e\n    \u003cli\u003eBi-amplification: 150 W (LF) + 100 W (HF), FR Series Class AB\u003c\/li\u003e\n    \u003cli\u003eFree-field frequency response: ±1.5 dB, 37 Hz – 20 kHz\u003c\/li\u003e\n    \u003cli\u003eActive Linkwitz-Riley crossover, 24 dB\/oct @ 1,900 Hz\u003c\/li\u003e\n    \u003cli\u003eZero Edge Baffle — single-piece aluminum casting, diffraction minimised\u003c\/li\u003e\n    \u003cli\u003eAcoustic Space Control: Full \/ Half \/ Quarter Space (-4 dB or -2 dB shelf @ 50 Hz)\u003c\/li\u003e\n    \u003cli\u003eLF filter: -3 dB @ 37 Hz \/ 47 Hz \/ 80 Hz (switchable)\u003c\/li\u003e\n    \u003cli\u003eHF EQ: ±2 dB @ 10 kHz, shelving\u003c\/li\u003e\n    \u003cli\u003eInputs: balanced XLR, balanced 1\/4\" TRS, unbalanced RCA\u003c\/li\u003e\n    \u003cli\u003eMaximum input level: +20 dBu\u003c\/li\u003e\n    \u003cli\u003eTHX pm3 certified for surround sound applications\u003c\/li\u003e\n    \u003cli\u003e19 mm MDF cabinet with piano-black gloss finish\u003c\/li\u003e\n    \u003cli\u003eWeight: 15.7 kg\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eType: active studio monitor, 2-way, bi-amplified\u003c\/li\u003e\n    \u003cli\u003eLF driver: 8.75\" (222 mm), 1.6\" (40 mm) voice coil, die-cast magnesium frame, 4 Ω nominal, 91 dB SPL sensitivity (2.83 V \/ 1 m)\u003c\/li\u003e\n    \u003cli\u003eHF driver: 1\" (25.4 mm) titanium dome, 1\" (25.4 mm) voice coil, neodymium magnet, 6 Ω nominal, 91 dB SPL sensitivity (2.83 V \/ 1 m), range 1.6 kHz – 22 kHz\u003c\/li\u003e\n    \u003cli\u003ePassive radiator: 6\" x 12\" (152 x 305 mm) elliptical mass-loaded piston\u003c\/li\u003e\n    \u003cli\u003eLF amplifier: 150 W rated, 350 W burst, THD \u0026lt; 0.035%, S\/N \u0026gt; 102 dB, Class AB\u003c\/li\u003e\n    \u003cli\u003eHF amplifier: 100 W rated, 210 W burst, THD \u0026lt; 0.035%, S\/N \u0026gt; 102 dB, Class AB\u003c\/li\u003e\n    \u003cli\u003eCrossover: modified Linkwitz-Riley, 24 dB\/oct @ 1,900 Hz\u003c\/li\u003e\n    \u003cli\u003eFree-field frequency response: ±1.5 dB, 37 Hz – 20 kHz\u003c\/li\u003e\n    \u003cli\u003eFrequency range: -3 dB @ 35 Hz (low) \/ -3 dB @ 22 kHz (high)\u003c\/li\u003e\n    \u003cli\u003eMaximum SPL (pair): 120 dB @ 1 m\u003c\/li\u003e\n    \u003cli\u003eReference SPL: 100 dB @ 1 m (-7.5 dBu balanced input)\u003c\/li\u003e\n    \u003cli\u003eResidual noise: \u0026lt; 8 dB SPL @ 1 m (max gain, 20 Hz – 20 kHz)\u003c\/li\u003e\n    \u003cli\u003eInput impedance: 20 kΩ balanced \/ 10 kΩ unbalanced\u003c\/li\u003e\n    \u003cli\u003eMaximum input level: +20 dBu\u003c\/li\u003e\n    \u003cli\u003eAcoustic Space Control: A (-4 dB @ 50 Hz shelf) \/ B (-2 dB @ 50 Hz shelf) \/ C (flat)\u003c\/li\u003e\n    \u003cli\u003eLF filter: -3 dB @ 37 Hz (2nd-order transitional HPF) \/ 47 Hz (4th-order Chebyshev) \/ 80 Hz (4th-order Butterworth)\u003c\/li\u003e\n    \u003cli\u003eHF EQ: ±2 dB @ 10 kHz shelving\u003c\/li\u003e\n    \u003cli\u003eInputs: XLR balanced, 1\/4\" TRS balanced, RCA unbalanced\u003c\/li\u003e\n    \u003cli\u003ePower consumption: 8 W (standby) \/ 18 W (idle) \/ 135 W (musical program)\u003c\/li\u003e\n    \u003cli\u003ePower supply: 120 V AC 60 Hz \/ 240 V AC 50 Hz\u003c\/li\u003e\n    \u003cli\u003eCertification: THX pm3\u003c\/li\u003e\n    \u003cli\u003eCabinet: 19 mm MDF, piano-black gloss finish\u003c\/li\u003e\n    \u003cli\u003eDimensions: 42.5 cm (H) x 27.3 cm (W) x 35.1 cm (D)\u003c\/li\u003e\n    \u003cli\u003eWeight: 15.7 kg (34.6 lbs)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Mackie","offers":[{"title":"Default Title","offer_id":53436405514577,"sku":"1253","price":645.84,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/MACKIEHR824mk21.jpg?v=1775571286","url":"https:\/\/wrdtunes.com\/de-fr\/products\/mackie-hr824-mk2","provider":"Wired Tunes","version":"1.0","type":"link"}