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The very first product to receive the THX Select seal of approval, the MK Sound 750THX loudspeaker system gives music and home cinema enthusiasts the opportunity to experience the reference-quality sound that has made MK Sound the choice of well over 100 professional audio, film, and video studios.
Designed for music and theatre systems in small to medium size rooms, MK Sound's THX Select Sound System delivers delicate sonic transparency combined with tremendous dynamic capability resulting in minimal coloration and effortless handling of voices, percussive effects, and musical instruments with life-like impact
After taking the professional audio world by storm, as an ever-increasing number of major names in cinematic audio select MK Sound speakers as their preferred reference monitors, MK Sound has applied nearly 40 years of experience at the forefront of professional loudspeaker design to a home surround system that is destined to become a classic.
Proprietary technologies and innovative thinking ensure that both music and movies alike are reproduced with accurate tonal rendition, harmonic integrity, extreme dynamics, natural vocal articulation, and rock-solid three-dimensional imaging.
MK Sound's THX Select Sound System is comprised of the following timbre matched components:
The LCR-750 THX Select 2-Way Bookshelf Loudspeaker utilises a 1" polymer coated silk soft-dome, ferrofluid cooled neodymium magnet tweeter and dual 5¼" mineral-filled polypropylene cone, magnetically shielded cast basket woofers.
The 750 front speakers incorporate MK Phase-Focused crossover design for ideal driver response and dispersion characteristics. Flat on-axis and off-axis response is achieved by careful analysis of the speaker’s response in both the time and frequency domains at various angles in both the vertical and horizontal planes.
Dual mid-bass drivers double power handling and double efficiency compared to a single unit, resulting in a four-fold gain in terms of possible dynamic range.
Even when extreme volume levels aren’t required, the enhanced dynamic range and efficiency of the 750THX system ensure reduced dynamic compression even at moderate to high listening levels.
The high-performance soft-dome high-frequency driver mounted at a 4.7° angle combines with the stylish, high-tech curved metal mesh grille and Phase-Focused crossover to form the MK High Frequency Prism System. The system provides optimum imaging on-axis and off-axis by shaping a very smooth and extended flat high-frequency response over a very wide listening area.
The SUR-55T THX Select Tripole Surround / Rear Loudspeakers with forward firing two-way array utilising a 1" polymer coated silk soft-dome, ferrofluid cooled neodymium magnet tweeter and a 5¼" mineral-filled polypropylene cone, magnetically shielded cast basket woofer, is combined with two side firing 3¼" coated pulp cone, magnetically shielded full range drivers.
Featuring two 3" paper mid-tweeters on each side of the speaker oriented in dipole fashion, the dipole configuration emits diffused sound throughout the room.
Combined with the front-mounted 1" soft-dome tweeter and 5.25" polypropylene mid-woofer direct radiating configuration (the same drivers as in the LCR-750 and Center 750), the Tripole design provides even distribution of sound throughout the listening area with pinpoint accuracy and an enveloping soundfield, allowing listeners to experience superior imaging and surround quality.
The LCR-750C Center is a high performance two-way, bookshelf size loudspeaker utilising a 1" polymer coated silk soft-dome, ferrofluid cooled neodymium magnet tweeter and dual 5¼" mineral-filled polypropylene cone, magnetically shielded cast basket woofers.
The SB-1250 THX Select 250W 12" Active Subwoofer design has exceptional sonic quality and a conservative power rating of 250 watts continuous output.
To facilitate easy connection and ideal system integration, the SB-1250 has inputs and outputs for line-level phono and speaker level signals. Separate controls allow you to set bass level and upper roll-off frequency between 40 – 200 Hz, with a bypass for using the filter in a home theater receiver.
Stereophile - by Michael Fremer - January 2000
Using both THX and non-THX receivers, I found that blending the subwoofer with the satellite speakers was very easy to accomplish, thanks in part to M&K’s outstanding instructions.
The first THX-approved speaker system in my home theater proved to be one of the most agreeable and accomplished – and probably the best-behaved – of any system I’ve reviewed. If a speaker system’s job is the opposite of a child’s – that is, to be heard and not seen – the M&K 750THX system’s department is exemplary.
The L/C/R array opens a broad, seamless window at the front of the soundstage, and the speakers never give away their individual locations. Image focus and size are ideal, creating a much larger sonic image than such compact speakers would seem able to produce.
Yet image specificity was exceptional – especially given the cramped quarters in my room – and perhaps as good as I’ve heard from any speaker system in my home theater.
The blend between the woofers and tweeter in each speaker also proved superbly accomplished, as evidenced on both voices and pink noise. The THX spec demands wide, smooth dispersion, and the 750THX system delivers it. The sound remains timbrally consistent over a wide horizontal arc, as does the overall SPL.
Every seat in the house gets the same high level of dialogue intelligibility. In fact, my wife and I agreed that the 750THX’s center channel is among the most effective we’ve heard – timbrally neutral, free of chestiness and excess sibilance, and possessing a tonal balance that remained remarkably consistent across our living room.
Probably thanks to the tweeter’s wide, smooth dispersive pattern, the direct-radiating Surround 550THX speakers create a broad, unobtrusive, and reasonably large surround picture that never fixes itself to the speaker boxes, even on highly directional surround signals.
The 750THX system manages to get out of the way, effectively delivering the goods both on movie soundtracks and surround-sound music.
Most smaller, inexpensive systems can sound slightly metallic and "peaky" in the upper midrange/lower treble region, or somewhat lumpy in the mid- bass. The 750THX system exhibits neither of these problems – and no serious problems at all.
In my small room, this relatively small system played much bigger than it looks, and without strain even when pushed to high SPLs. It strikes a nice tonal balance between detail and pleasing warmth. The seamless blend of woofer and satellites is easy to achieve; once it was set, I never felt the need to mess with it.
Dynamically, I can’t fault the 750THX system – thanks, in part, to the sub- woofer’s outstanding performance ... the 750THX’s many sonic strengths and lack of glaring weaknesses make this system a remarkable value for the money and an easy recommendation.
LCR-750 THX Select 2-Way Bookshelf Loudspeaker
Frequency Response: 80 Hz - 20 kHz ±3dB
impedance: 4 Ohms
Power Handling: 150 Watts RMS
Sensitivity: 90.5dB
Dimensions (H x W x D): 40.8 x 17.8 x 22.3 cm
Weight: 6.9 kg
SUR-55T THX Select Tripole Surround / Rear Speakers
Frequency Response: 87 Hz - 20 kHz ±3dB
impedance: 4 Ohms
Power Handling: 100 Watts RMS
Sensitivity: 85dB
Dimensions (H x W x D): 25.9 x 17.8 x 22.1 cm
Weight: 4.7 kg
750C THX Select Centre Loudspeaker
Frequency Response: 80 Hz - 20 kHz ±3dB
impedance: 4 Ohms
Power Handling: 150 Watts RMS
Sensitivity: 90.5dB
Dimensions (H x W x D): 17.8 x 40.8 x 22.3 cm
Weight: 6.9 kg
SB-1250 250W 12" Active Subwoofer
Frequency Response: 20 Hz - 200 Hz ±3dB
Low-pass Filter: 40 Hz-200 Hz, continuously variable, or Bypass
Rated Power: 250 Watts RMS
Dimensions (H x W x D): 45.7 x 38.7 x 58.4 cm
Weight: 20.4 kg