Difuzor MarkAudio Alpair-12P

  • Difuzor MarkAudio Alpair-12P
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The Alpair 12P is the largest full-range driver produced by Markaudio. This driver is a development unit following on from the original metal coned Alpair 12 produced in 2009/2010. Several major design changes make this Alpair radically different from the original in terms of its operation and performance.

Highlights

  • Custom paper cone
  • Synthetic rubber surround
  • Special voice coil and spider
  • Power train suspension structure

Product Details

MarkAudio Alpair-12P 8 Paper Cone Full Range

The Alpair 12P is the largest full-range driver produced by Markaudio. This driver is a development unit following on from the original metal coned Alpair 12 produced in 2009/2010. Several major design changes make this Alpair radically different from the original in terms of its operation and performance.

Markaudio Alpair series drivers are completely custom designed and built. All components (apart from the magnet) are individually designed and engineered with their own tooling and mould making sets. Alpair drivers are made by highly skilled engineers; they are not “mass produced”.

The change to a custom paper cone with a shallower profile reduces mass and increases dispersion performance. The new cone is only 21-mm deep compared to the metal unit at 26- mm. The 12P employs a new custom CCAW coil with an aluminum/paper wrap, vented, low mass thin-walled body. The spider is particularly special. Designed by Matsubara San, it employs a new long throw profile set together with a ribbed body to maintain linearity. The front suspension remains the same as the previous model; designed by Lu Yi Ping, its ultra-thin wall doesn't support the cone. In terms of mechanical load performance, the 12P remains a single semi-free to air driver, possibly a unique design in its class (see description and picture below).

The 12P remains pure to designer Mark Fenlon's current criterion which is to make purist, single cone drivers that are full-range capable without the use of phase plugs, co-axial center tweeters or whizzers. The 12P is 92dB efficient (1w/m2), operating to 22-kHz (-3dB) and having a resonance frequency of 42Hz (+/- 2Hz). The 12Pʼs power-train (cone, cap, coil and suspensions) is mechanically efficient and linear, requiring only modest powered amps to make it perform well. This driver is aimed strictly at the “audiophile” end of the market. Its cone is highly-resonance sensitive so clean low-distortion amplification and source components are advised.

For those listeners who value absolute detail, dynamics and clarity, the Alpair 12P is an excellent candidate. I'd like to thank all those who assisted in the design and development process, especially existing Markaudio driver users, whose feedback was instrumental in the 12Pʼs final incarnation.

Specificatii Difuzor MarkAudio Alpair-12P

Specificatii PRODUCT SPECIFICATIONS

Nominal Diameter

8

Power Handling (RMS)

30 Watts

Power Handling (max)

- Watts

Impedance

8 ohms

Frequency Response

- to - Hz

Sensitivity

89.3 dB 2.83V/1m

Voice Coil Diameter

-



THIELE-SMALL PARAMETERS

Resonant Frequency (Fs)

46 Hz

DC Resistance (Re)

7 ohms

Mechanical Q (Qms)

1.45

Electromagnetic Q (Qes)

0.42

Total Q (Qts)

0.32

Compliance Equivalent Volume (Vas)

0.8 ft.³

Mechanical Compliance of Suspension (Cms)

0.75 mm/N

BL Product (BL)

8.75 Tm

Diaphragm Mass Inc. Airload (Mms)

15.8g

Maximum Linear Excursion (Xmax)

9 mm

Surface Area of Cone (Sd)

143.14 cm²



MOUNTING INFORMATION

Overall Outside Diameter

-

Baffle Cutout Diameter

-

Depth

-

# Mounting Holes

-
Tip Echipament Full Range
Diametru 8.0 inch / 20.0 cm

MarkAudio

Intr-o epoca in care foarte putini producatori de difuzoare inca mai fac toate componentele in propria fabrica, MarkAudio se afla pe locurile superioare ale clasamentului acestei  minoritati producand cele mai performante difuzoare, cu o reputatie mondiala absoluta.

MarkAudio este o ramura a Markimage Limited, o companie care proiecteaza si fabrica produse HIFI, cu sediul in Hong Kong. Incepand cu anul 2000, Markimage Limited a realizat componente audio si produse finite pentru branduri din industria audio-video din intreaga Europa. Producerea componentelor OEM se situeaza in capatului superior al preferintelor pietei din acest segment, in special pentru articolele realizate la comanda.

Cu peste 11 ani de experienta, MarkAudio a avansat de la furnizarea de componente audio pentru marile brandurile europene, la producerea unei game proprii de difuzoare audio si accesorii pentru pasionatii audiofili. 

Infiintata initial de Mark Fenlon, inginer mecanic de proiectare cu portofoliu impresionant realizat in cei 30 ani de proiectare si fabricare a componentelor audio, compania a crescut pentru a atrage un numar impresionant de specialisti in acustica.

Pentru ca filozofia companiei este una de imbunatatire continua, MarkAudio face toate produsele sale in-house, unde difuzoarele MarkAudio sunt proiectate si realizate de designerul britanic Mark Fenlon, care gestioneaza personal echipa de o inalta calificare, pentru ca fiecare difuzor ce paraseste linia de productie sa fie perfect echilibrat, reproducand sunetul in cel mai fidel mod.

Toate difuzoarele Markaudio exceleaza cu fiecare parametru masurat si functioneaza optim in fiecare incinta in care este amplasat. Orice audiofil va asculta cu eufonie, detaliile sunetului, combinate cu acuitate si control dinamic.

Auditiile realizate cu ajutorul difuzoarelor MarkAudio sunt un lux pentru urechile oricarui cunoscator, pantru ca fiecare componenta care poarta marca MarkAudio atinge cele mai inalte standarde de calitate.

Designul si functiile operationale ale difuzoarelor MarkAudiosunt direct influentate de contributia unor experti audio si a unor designeri mecanici, astfel incat sunetul redat de aceste difuzoare este incredibil, rafinat, perfect echilibrat.

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