MAOP 11

Description

110mm Fullrange drive unit. Single ferrite magnet.

8ohm Nominal impedance

Low-profile, micro-arc oxodsied multiform cone for broad directivity pattern

All MAOP drive units are custom measured in our anechoic chamber: data here published as a sample for general guidance.

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.

 
 
FS 44.3146 Hz  
VAS 18.4481 L  
RE 6.8 Ω  
QMS 2.0043  
QES 0.3523  
QTS 0.2996  
BxI 8.0545 Txm  
dBSPL 88.618  
SD 0.0111 m ²  
CMS 1.0680 mm/N  
MMS 12.0624 g  
RMS 1.6767 WM  
CAS 1.32E-7 m5/N  
MAS 97.51 kg/m4  
RAS 13555 WA  
CMES 185.9346 mF  
LCES 69.2877 mH  
RES 38.6909 W  
RAT 90680 WA  
RMT 11.2171 WM  
MMD 11.3985 g  
ZMIN 8.5707 W  
ZMAX 45.4909 W  
ZAVG 16.2322 W  
h0 0.44%  
L1kHz 0.3671 mH  
L10kHz 0.1202 mH  

 

 

Additional information

Weight 5 kg
Dimensions 30 × 30 × 30 cm

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