The Alpair 7 Gen. 3 represents a large step forward in the design and production of “extended” fullrange audio drivers. The usable range now extents to 32-kHz above 80dB, thatʼs higher than many tweeters!
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
|Alpair 7M – Parameters|
|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)||Spl= 85.20 dB (rear cover removed)||Pwr= 20w Nom.|
|Xmax= 4.2 mm 1 way||Coil= Dia 20-mm||Main tolerance= +/- 1.5 Hz on mean Fo|