• Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair
  • Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair

Markaudio Alpair-7MS 4" Full Range Woofer Matched Pair

The advanced design Alpair 7MS (mono suspension) is a radical departure from previous models. The 7MS is completely new, utilising many new design components and manufacturing processes. The two main features are the patent-pending Negative Camber Cone an
Article number:
Alpair-7MS Grey
Delivery time:
Delivery time: 1-4 business days
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In stock (2)
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Buy 2 for €163,83 each and save 5%

€172,45 .
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Woofer Series: Alpair Series
Woofer Type: Full-range
Nominal Diameter: 4"
Power Handling (RMS): 15 Watts
Power Handling (max):
Continuous Program Power:
Impedance: 8 ohms
Sensitivity: 86.3 dB 2.83V/1m
Frequency Response: 70 to 30,000 Hz
Voice Coil Diameter:
Magnet Weight:
DC Resistance (Re): 7.2 ohms
Voice Coil Inductance (Le):
Resonant Frequency (Fs): 75 Hz
Mechanical Q (Qms): 2.35
Electromagnetic Q (Qes): 0.74
Total Q (Qts): 0.57
Diaphragm Mass Inc. Airload (Mms): 3.3g
Moving Mass Of Diaphragm (Mmd) :
Mechanical Compliance of Suspension (Cms): 1.384 mm/N
Surface Area of Cone (Sd): 50.27 cm²
Volume of Displacement (Vd) :
BL Product (BL): 3.9 Tm
Compliance Equivalent Volume (Vas): 0.175 ft.³
Maximum Linear Excursion (Xmax): 4.5 mm
Driver's Mechanical Losses (Rms) :
Cone / Diaphragm Material:
Surround Material:
Voice Coil Wire Material:
Voice Coil Former:
Dual Voice Coil:
Basket / Frame Material:
Magnet Material:
Shielded:
Overall Outside Diameter: 4.41"
Overall Depth : 2.44"
Baffle Cutout Diameter: 3.90"
Bolt Circle Diameter:
# Mounting Holes: 5
Mounting Hole Diameter:
Bolt Circle Diameter :
Sealed Volume:
Sealed F3:
Vented Volume:
Vented F3:

The advanced design Alpair 7MS (mono suspension) is a radical departure from previous models. The 7MS is completely new, utilising many new design components and manufacturing processes. The two main features are the patent-pending Negative Camber Cone and Mono suspension system. Other key features include a custom designed, gas-flowed glass-fibre chassis and dedicated ultra light voice coil.

 

Highlights

  • Two colour choices, gun-metal grey and classic gold
  • The run-in time for the 7MS is significantly reduced compared to previous models. Ten hours of light music at moderate volumes is sufficient for the suspension to reach its optimal operating pattern.
  • An Arrestor (as deployed in previous Alpair models) provides an audible warning of accidental excess excursion.
  • The low-mass coil has a vented former and the motor employs custom made copper plating to reduce distortion.
  • The MS7 is a bass capable audio driver with comparable performance to light-medium load traditional mid-bass units of the same size.
  • Sold as matched pairs

 

Product Details

After releasing the Pluvia range of drivers, which have been well received, Mark set about the next design evolution. As some of you will know Mark’s design ethos is mechanical efficiency, adding lightness and simplifying where possible. In these new drivers Mark has managed to achieve much more with much less.

The advanced design Alpair 7MS (mono suspension) is a radical departure from previous models. The 7MS is completely new, utilising many new design components and manufacturing processes. The two main features are the patent-pending Negative Camber Cone and Mono suspension system. Other key features include a custom designed, gas-flowed glass-fibre chassis and dedicated ultra light voice coil.

The 7MS cone is an ultra shallow design affording a wide dispersion pattern. The outer section of the cone profile is angled backwards creating a +180 degrees emittance pattern to help optimise stereo imaging. Vocals from quality sources sound more natural and detailed as the central cap and cone profile are geometrically close-aligned.

Much technical research has been done to balance the driver’s powertrain (cone, cap, coil and suspension) between its axis of travel and the corresponding centre of gravity. The new negative-camber cone facilitates the repositioning of the coil to avoid the need for a traditional rear suspension (spider). Mark’s new mono suspension design frees the coil from having a restrictive spider bonded to it, improving the transfer of energy from the driver’s motor to its cone. The new suspension employs an all new custom mix of four synthetic materials, resulting in improved linearity under low frequency loads.

The various slopes and rounded angles help improve sound wave emittance. Custom extended terminals are provided for push-on connectors or light-soldering for cables up to 1.5mm diameter.

The 7MS is an audio driver designed for the dedicated music lover and High-Fidelity enthusiast. Attention to design detail along with an close tolerance manufacturing standard to +/- 0.05mm on most component alignments make this new generation of Markaudio transducers stand out from the crowd.

 

PRODUCT SPECIFICATIONS

Nominal Diameter

4"

Power Handling (RMS)

15 Watts

Power Handling (max)

- Watts

Impedance

8 ohms

Frequency Response

70 to 30,000 Hz

Sensitivity

86.3 dB 2.83V/1m

 

THIELE-SMALL PARAMETERS

Resonant Frequency (Fs)

75 Hz

DC Resistance (Re)

7.2 ohms

Mechanical Q (Qms)

2.35

Electromagnetic Q (Qes)

0.74

Total Q (Qts)

0.57

Compliance Equivalent Volume (Vas)

0.175 ft.³

Mechanical Compliance of Suspension (Cms)

1.384 mm/N

BL Product (BL)

3.9 Tm

Diaphragm Mass Inc. Airload (Mms)

3.3g

Maximum Linear Excursion (Xmax)

4.5 mm

Surface Area of Cone (Sd)

50.27 cm²

 

MOUNTING INFORMATION

Overall Outside Diameter

4.41"

Baffle Cutout Diameter

3.90"

Depth

2.44"

# Mounting Holes

5

 

R R. Posted on 20 December 2018 at 17:54

I am listening to the New 11ms in a Twin Frugal Horn XL Cabinet in one set up. These new mone suspension drivers are going to be a game changer !
Building a Hybrid Horn Cabinet for the 7MS.
Thank you !

Ben v. Posted on 14 December 2018 at 11:56

Na ontvangst heb ik de A7's in de Frugal hoorns gemonteerd en gemeten. Enige correctie bleek nodig. Na wat meten en luisteren en aanpassen van de serie RCL-kring kwam ik uit op 0,68 mH / 6,8 Ohm / 5,6 microfarad, parallel geschakeld. De meting ziet er nu goed uit en de meetruis klonk zonder accenten. De weergave bevalt me, wat beter nog dan die van de A7 gen3. Ruimte en atmosfeer worden door geen enkele van mijn meerwegspeakers zo realistisch gepresenteerd, ook niet door een Kef Reference.

5 stars based on 2 reviews Add your review
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