Markaudio MAOP-7.2 White 4″ Full Range Woofer
The Mark Audio wide band drivers MAOP (Micro Arc Oxidation Process or Plasma Electrolytic Oxidization) have been made in extremely small production runs and are extremely collectable by the local customers.
- Impedance (Z)
- 6 Ω
- Power Handling (RMS)
- 15 Watts
- Frequency response
- 75-25.000 Hz
€129.95
10 in stock
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SKU:
MAOP-7.2 white
Categories: Audio components, Woofers, Full-range woofer
Description
Highlights
- Every pair is matched
- Micro Arc Oxidation Process
- Crystalline oxide cone
- Wide band driver
Product details
Markaudio MAOP-7.2 White 4″ Full Range Woofer | Each two drivers are sold as a matched pair.
The uniqueness of Markaudio lays on their matching pairs of drivers. Each driver is tested and paired with another driver that shows the closest matching frequency response measurement. In order to respect this philosophy and added value to these great products, we at SoundImports, recomend you to purchase them as pairs.
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.
Specifications
| Article number | MAOP-7.2 white |
| EAN | 0691046947857 |
| plus | Natürlicher Klang |
| min | Begrenzte Belastbarkeit |
| Article number | MAOP-7.2 white |
| EAN | 0691046947857 |
Additional information
| Woofer Series | Markaudio MAOP series |
|---|---|
| Woofer Type | Full-range woofer |
| Nominal Diameter | 4″ |
| Power Handling (RMS) | 15 Watts |
| Impedance (Z) | 6 Ω |
| Sensitivity (SPL at 1m / 2.83V) | 85.8 dB |
| Frequency response | 75-25.000 Hz |
| Voice Coil Diameter | 22 mm |
| DC Resistance (Re) | 5.4 Ω |
| Voice Coil Inductance (Le) | 0.02 mH |
| Resonant Frequency (Fs) | 76.5 Hz |
| Mechanical Q (Qms) | 1.98 |
| Electromagnetic Q (Qes) | 0.6 |
| Total Q (Qts) | 0.465 |
| Diaphragm Mass Inc. Airload (Mms) | 3.88 g |
| Mechanical Compliance of Suspension (Cms) | 1100 µm/N |
| Surface Area of Cone (Sd) | 50.2 cm² |
| BL Product (BL) | 4.09 Tm |
| Compliance Equivalent Volume (Vas) | 3.96 Liters |
| Maximum Linear Excursion (Xmax) | 2.25 mm |
| Surround Material | Rubber |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Aluminium |
| Basket / Frame Material | Plastic |
| Magnet Material | Ferrite |
| Overall Outside Diameter | 122.3 mm |
| Overall Depth | 71.5 mm |
| Baffle Cutout Diameter | 100 mm |
| Bolt Circle Diameter | 112 mm |
| # Mounting Holes | 5 |
| Mounting Hole Diameter | 3.1 mm |
Shipping & Delivery
USPS Fast Shipping
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