Maximus-Ruby-Mk2
2017 Blue Moon Award winner on:
“ , dat klinkt lekker! We muttered those words simultaneously as the first tones escaping the Mark & Daniel Maximus Ruby MkII hit the room. Thatwas the most common Dutch swear word... The rest translates as "that sounds good!". In conclusion we can not renounce our initial “, Sorry but it then was and still has to be “that sounds absolutely magnificent!”We would urge all those who look for new speakers to check out a live pair of these small wonders. They won’t break the bank even with some nice stands. Mate them with other hidden treasures like XX amplifiers far more than their small size and price would suggest. You will be in heaven.”
- Marja & Henk / Reviewer-
http://www.6moons.com/audioreviews2/m+d2/1.html 
Postscript: “We’d signed up for three M&D reviews at once, each assigned to a different writer/s. Each writer had given ‘his’ or ‘her’ model top marks. Had we only done one, it wouldn’t have mattered which. An award would have been automatic. With three however, we’d have to focus down on just one since we don’t issue awards for an entire range... As the middle model of our three, it seemed to me that the Ruby Mk2 had enough bandwidth and output potential to work without a subwoofer in even larger rooms to make it the one most within reach. The Monitor Mk2..., the Mini Monitor... It’s an honour however which the other two should most fairly bask in as well!” - Srajan Ebaen, www.6moons.com Publisher - 
Other than the inherited features from our award winning Maximus-Ruby speakers, a new, superior Maximus-Ruby-Mk2 bookshelf speaker has been successfully developed featuring our modular wideband AMT driver technology, diamond-shaped enclosure design, and high quality components. Through critical research, significant improvements have been achieved with system durability and reliability over the original version. The new Ruby-Mk2 not only meets M&D’s design targets, it is also remains the most affordable, true hi-fi bookshelf speaker today, with best Cost/Performance value among the entire Mark & Daniel product line. “A Milestone in Sound Engineering” is the best description for the Maximus-Ruby-Mk2. Although this two-way Ruby-Mk2 is the smallest and most economical M&D speaker with only one 5.5” bass driver, it boasts an outstanding high output capability and provides true hi-fi sound reproduction, yielding “a huge sound” that is far beyond to its size limitations compared to any similar bookshelf speaker ever made!  
After long and painstaking research, M&D’s new modular DM-6b wideband AMT model driver is now employed in the two-way Ruby-Mk2. M&D has achieved an unprecedented audio range of more than 5 octaves, from 900Hz up to 30KHz, from this unique speaker. Audiophiles will be astounded to experience such truly extraordinary wideband frequency response and stunning sound transparency from such a compact speaker.
* See DM-6b: http://www.trade168.cn/index.asp?Proid=27&table=sdr The incorporated 5.5” woofer, with M&D patented Super Xmax technology features an amazing ±10.0mm (0.8”) linear excursion travel. Through painstaking engineering optimization, this SX5.5a-0.8 super woofer is able to provide stunning deep bass reproduction at high volume levels, enabling it to achieve deep bass down to 42Hz (over the original 45Hz) which is an unparalleled figure for a small (overall only 11 Liters, 0.39 cubic ft.) bookshelf speaker, while employing and optimizing full Q-control throughout the complete bass excursion range.
* SX woofer: http://www.trade168.cn/index.asp?ID=21&table=Phylosophy
 
The diamond-shaped design of the hand-made CAM enclosure created for the Maximus-Ruby-Mk2 speaker is not just due to aesthetic considerations; it was engineered to effectively reduce the side diffraction influence that could affect the DM-6b AMT driver for best wideband performance. We have now achieved a more flat, precise response over the most sensitive mid-range band (from 900Hz to 4KHz) to maintain true hi-fi transparency from our unique CAM cabinet material.
The Maximus-Ruby-Mk2 speaker is equipped with a metal grille on the front panel for proper protection of the woofer. Because this woofer is working only under the mid-low frequency band, and due to the high transparency of the grille, the influence the metal grille has on sound reproduction is negligible. Therefore it is not necessary to remove the speaker grille from the front panel while listening to music.
One reminder to users however：please do not overdrive the woofer (turn the volume control near maximum) while playing music with strong sub-bass content. The Maximus-Ruby-Mk2 can reproduce music down to 42Hz beautifully, yet since human ears are insensitive to sub-bass sound and users cannot see the dramatic cone movements which may already be exceeding the woofer’s excursion limit (due to the visual block of the speaker grille), it is easy to unconsciously increase the volume beyond safe limits, which may cause the woofer and/or power amplifier to be damaged.
 
The Maximus-Ruby-Mk2 is one of M&D’s new second generation speakers. All the details of their construction and materials have been reviewed and significantly improved for higher reliability, enabling superior quality control over the highly admired, award-winning version of the original Maximus-Ruby speaker. The new, tiny Maximus-Ruby-Mk2 enclosure dimensions are as follows: H 29.5cm (11.6“) x W 17.5cm (6.9”) xD 21.5cm (8.5“). The re-inforced, low resonant CAM compound marble enclosure with the diamond shaped panel is extremely solid and heavy, each unit weighs 9.2Kg (20 lbs).
* CAM enclosure: http://www.trade168.cn/index.asp?ID=9&table=faq One pair of high quality German WBT® banana posts on the speaker back plate are provided for excellent connection to your audio cables. For proper operation, a pair of good quality speaker cables connected to a high current amplifier with a minimum of 80 watts output per channel is recommended to match the Maximus-Ruby-Mk2 speaker’s impedance characteristics due to their relatively low (83dB) efficiency.  
Description: Maximus-Ruby-Mk2 Bookshelf Speaker
Reference Price: US$3,050/pair, for standard colors
Standard Colors: - Solid White
(Code: MD-1002)
- Starry Black
(Code: MD-1423)
* Special colors are under request
System Configuration: 2-Way, low crossover
Freuency Response: 42Hz-30KHz
Two-way Low Crossover: 900Hz
Nominal Impedance: 4-6 Ohms
Average Efficiency: 83dB/2.83V/1m
Power Handling: 80 Watts
Enclosure Material: Handmade CAM solid surfacing
Overall Size: H29.5 xW17.5 xD21.5cm (H11.6“ xW6.9” xD8.5”)
Weight (each): 9.2Kg (20lb) 
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