Markaudio MAOP 11 Full Range Driver

Priced As A Pair

These 2 pair of MAOP11 drivers have never been used. They are new in the box units. I am getting out of the speaker building business. :)

These drivers are very smooth and have surprisingly good dispersion. I made a pair of sealed bookshelf speakers with another set of MAOP11, and  placed a Dayton ND20FA 3/4" dome tweeter on the rear of the enclosure with a 1st order crossover at 8khz. The rear firing tweeter did a fantastic job at creating a more ambient  presentation.

As the MAOP 11 driver is identical physically to the Alpair 11, Alpair 11MS and Pluvia 11 Markaudio drivers, it can be used as an upgrade in cabinet kits like the Frugel horn XL, and Pensil speakers that are designed with those drivers in mind.

The MAOP series sits at the top of the Markaudio range and is aimed at audiophiles seeking the ultimate in full range speaker drivers. Due to the complex manufacturing and testing processes used to build these drivers, they are produced in small quantities. These drivers are popular in Asia, and hence when they are available, very few find their way this far West.

The Magnetic Arc Oxidisation Process is done at extremely high temperature in a flux bath that is prone to differential temperatures (hot/cold spots) which can warp the cones. The process is 10 times the cost of normal cone production, at least half are scrapped as it does render cones unusable if they are warped even slightly. The MAOP process involves a chemical conversion where the cone material is converted into its crystalline oxide. The crystal grows both inward into the substrate and outward. As such the new coating is not a deposited coating; it is part of the original structure which gives excellent adhesion. The large crystal structure provides excellent stiffness and resistance to damage. The crystalline structure also encapsulates microscopic voids. It is supposed that it is the blend of microscopic voids and stiff structure that lend the cone the audio properties of both the metal cone and the paper cone, accuracy and a listen-all-day quality.

After construction, each driver is individually measured in the anechoic chamber at the Markaudio factory and pair matched based on that data to within, 0.5% tolerance.  Each pair is supplied with individual electrical and acoustic measurements.