{"product_id":"mackie-hr624-mk2","title":"MACKIE HR624 mk2","description":"\u003cdiv lang=\"en\"\u003e\n\n  \u003cp\u003e\u003cstrong\u003eMackie HR624 MK2\u003c\/strong\u003e is a two-way \u003ca href=\"https:\/\/wrdtunes.com\/collections\/studio-monitors\"\u003eactive studio monitor\u003c\/a\u003e with a 6.7\" low-frequency driver and a 1\" titanium dome tweeter, bi-amplified at 100 W (LF) + 40 W (HF) in Class AB. A free-field frequency response of ±1.5 dB from 49 Hz to 20 kHz, a 6\" x 9\" elliptical passive radiator and THX pm3 certification establish the HR624 MK2 as the smaller sibling of the HR824 MK2 — built for situations where footprint and weight matter without sacrificing the Zero Edge Baffle architecture, active Linkwitz-Riley crossover and Acoustic Space Control shared across the HR MK2 family. At 10.6 kg it is a practical choice for mobile setups, post-production suites and project studios where desk space is limited.\u003c\/p\u003e\n\n  \u003ch3\u003eZero Edge Baffle and 3 kHz crossover — same engineering, smaller format\u003c\/h3\u003e\n\n  \u003cp\u003eThe single-piece aluminum Zero Edge Baffle eliminates wave diffraction at cabinet corners, which in standard MDF enclosures generates delayed energy that degrades stereo imaging. The integrated exponential aluminum waveguide maintains consistent off-axis dispersion from the tweeter across the operating range. The active Linkwitz-Riley crossover at 24 dB\/octave crosses at 3 kHz — higher than the HR824 MK2's 1.9 kHz — reflecting the 6.7\" woofer's smaller excursion capability and its usable range up to 6 kHz. The 6\" x 9\" mass-loaded elliptical passive radiator extends bass response to -3 dB at 45 Hz without the group delay distortion of a ported enclosure at the frequency limits.\u003c\/p\u003e\n\n  \u003ch3\u003eTwo-position LF filter, HF EQ and Acoustic Space Control\u003c\/h3\u003e\n\n  \u003cp\u003eThe LF filter offers two positions: 49 Hz (normal) and 80 Hz for satellite operation with a subwoofer. The 80 Hz setting configures the HR624 MK2 for THX pm3 surround systems — 5.1 and 7.1 configurations with a dedicated bass management unit. The HF shelving EQ at ±2 dB at 10 kHz corrects for room brightness or darkness without touching the midrange. Acoustic Space Control's three positions (-4 dB or -2 dB shelving at 50 Hz, or flat) compensate for boundary reinforcement from walls and corners — essential in small home studios and project rooms where speaker placement relative to room boundaries is rarely ideal. Protection includes independent LF and HF overload detection, automatic thermal shutdown with auto-reset 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\u003e6.7\" LF driver — die-cast magnesium frame, 1.25\" voice coil, shielded ferrite magnet, range 45 Hz – 6 kHz\u003c\/li\u003e\n    \u003cli\u003e1\" titanium dome tweeter — neodymium magnet, 1\" voice coil, range 1.6 kHz – 22 kHz\u003c\/li\u003e\n    \u003cli\u003e6\" x 9\" mass-loaded elliptical passive radiator — bass extension to -3 dB @ 45 Hz\u003c\/li\u003e\n    \u003cli\u003eBi-amplification: 100 W (LF) + 40 W (HF), Class AB, 140 W total\u003c\/li\u003e\n    \u003cli\u003eFree-field frequency response: ±1.5 dB, 49 Hz – 20 kHz\u003c\/li\u003e\n    \u003cli\u003eActive Linkwitz-Riley crossover, 24 dB\/oct @ 3 kHz\u003c\/li\u003e\n    \u003cli\u003eZero Edge Baffle — single-piece aluminum casting\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 @ 49 Hz (normal) or 80 Hz (subwoofer\/satellite mode)\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\u003c\/li\u003e\n    \u003cli\u003e19 mm MDF cabinet with piano-black gloss finish\u003c\/li\u003e\n    \u003cli\u003eWeight: 10.6 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: 6.7\" (170 mm), 1.25\" (32 mm) voice coil, die-cast magnesium frame, 4 Ω, 89 dB SPL sensitivity (2.83 V \/ 1 m), range 45 Hz – 6 kHz\u003c\/li\u003e\n    \u003cli\u003eHF driver: 1\" (25.4 mm) titanium dome, 1\" (25.4 mm) voice coil, neodymium magnet, 6 Ω, 91 dB SPL sensitivity (2.83 V \/ 1 m), range 1.6 kHz – 22 kHz\u003c\/li\u003e\n    \u003cli\u003ePassive radiator: 6\" x 9\" (152 x 228 mm) elliptical mass-loaded piston\u003c\/li\u003e\n    \u003cli\u003eLF amplifier: 100 W rated, THD \u0026lt; 0.035%, S\/N \u0026gt; 101 dB, Class AB, parametric servo feedback\u003c\/li\u003e\n    \u003cli\u003eHF amplifier: 40 W rated, THD \u0026lt; 0.035%, S\/N \u0026gt; 93 dB, Class AB\u003c\/li\u003e\n    \u003cli\u003eCrossover: modified Linkwitz-Riley, 24 dB\/oct @ 3 kHz\u003c\/li\u003e\n    \u003cli\u003eFree-field frequency response: ±1.5 dB, 49 Hz – 20 kHz\u003c\/li\u003e\n    \u003cli\u003eFrequency range: -3 dB @ 45 Hz (low) \/ -3 dB @ 22 kHz (high)\u003c\/li\u003e\n    \u003cli\u003eMaximum SPL (pair): 115 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: 2nd-order Butterworth @ 49 Hz (normal) or 80 Hz (subwoofer mode)\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: 12 W (standby) \/ 20 W (idle) \/ 105 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, internal volume 8.2 litres\u003c\/li\u003e\n    \u003cli\u003eDimensions: 33.3 cm (H) x 21.9 cm (W) x 31.9 cm (D)\u003c\/li\u003e\n    \u003cli\u003eWeight: 10.6 kg (23.4 lbs)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Mackie","offers":[{"title":"Default Title","offer_id":53436405481809,"sku":"1252","price":465.72,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/MACKIEHR624mk21.jpg?v=1775571302","url":"https:\/\/wrdtunes.com\/en-fr\/products\/mackie-hr624-mk2","provider":"Wired Tunes","version":"1.0","type":"link"}