The Alpair 7 Gen. 3 represents a large step forward in the design and production of “extended” full-
range audio drivers. In its size class, this Alpair 7 currently delivers the widest frequency range*. The
usable range now extents to 32-kHz above 80dB, thatʼs higher than many tweeters

This Alpair 7 has an advanced damping systems such that it delivers a “near flat” response across its
range. The 7 employs a rear ring-clamped suspension system and a new torque loaded rear
suspension (spider). Both these components add pre-tension to the power-train. The result is improved
linearity and damping on the moving components.

The rear magnet cover can be removed. The covers magnetic attraction keeps it attached to the main
driver body. Simply pull away from the driverʼs main body, no tools are needed to do this job. Removal
help those box makers who design shallow cabinets or wish to optimise internal box volumes. The
performance change with the cover removed is small, so the installation choices for the end user is
optimal. The frameʼs front cover is also made removable. While we recommend its use, the frameʼs
diameter is minimised to 130-mm, helping box those who want to make slimmer box designs.

The acoustic performance of this driver is solidly placed in the “purist-audiophile” category. Its cone and
power-train are the most micro-resonance sensitive made by Markaudio to date. With the rear and front
covers attached, the driver has a SPL of near 86dB while retaining an X-max of +4-mm available for
peak non-rhythmic bass loads. In a optimised box design, the system can be made capable of
operating from 40-Hz to 32-kHz, possibly a unique performance for a simple cone driver in its size and
class. The off axis responses and central stereo image emitted from this Alpair 7 are possibly best in
class. Its cone profile and under-hung front suspension allow for a clean wide acoustic image making it
easier to optimse box positioning in most listening environments.

The Alpair 7 Gen. 3 is near unique (if not totally unique). Its range, near flat response and special
design features set it apart from other full-range driver of similar size.

*Extensive research on the available drivers of similar size, found none offering the wide range delivery of the Alpair 7 Gen. 3 -
June 2011.

Alpair 7 Gen. 3
Data (with cover)
REVC     5.4 Ohm
Fo     70.90 Hz
Sd     5.02 K mm/2
Vas     4.58 Ltrs
Cms     1.27 uM/N
Mmd     3.74 g
Mms     3.95 g
BL     3.83 T*M
Qms     3.07
Qes     0.65
Qts     0.54
Levc     21.30 uH
No     0.24%
Spl     85.80 dB (with rear cover)
85.20 dB (rear cover removed)
Pwr     20w Nom.
X max     4.2 mm 1 way
Coil Dia 20-mm
Main tolerance +/- 1.5 Hz on mean Fo

Speaker Specifications
Nominal Size (mm) 70
Nominal Impedance (Ohms) 6
Power Rating (W) 20
Sensitivity 1W/1M (dB) 85.8
Resonant Frequency (Hz) 70.9
Qts 0.54
Qms 3.07
Qes 0.65
Vas (Litres) 4.58
Re (Ohms) 5.4
Xmax (mm) 4.2
Freq Response Min (hz) 70
Freq Response Max (hz) 15000

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Mark Audio Alpair 7M - Gold

  • Brand: Mark Audio
  • Product Code: Alpair 7M Gold
  • Availability: 10
  • AUD$111.00

Tags: full range, paper, alpair

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