Alpair 7p
These drivers are no longer made, this page is for reference only.
Please refer to the spiritual replacement – Pluvia 7PHD
Description
The Alpair 7P is an audiophile grade paper and glass strand re-enforced coned driver. Along with its sisters drivers, 6P,10P and 12P, the Alpair 7P is designed for the Serious music listener. The 7P’s relatively flat-wide response is designed to deliver a neutral sound. The high range life response is moved to begin its elevation above 17kHz.
Particular attention is paid to the stability of the light-thin cone with bonding re-enforcement being deployed on the inner contour of its profile. The 7P’s moving mass is a light-weight 3grams, yet it retains a long throw operation @ 4mm (1 way limited by Arrestor).
An all-new computer controlled assembly bonding process is deployed on this driver, delivering ultra tight tolerances in critical parts of the 7P’s power-train assembly.
The 7P can be used as a single-point source driver in purist Full-Range applications, or to partner with the Alpair 12PW, a bass-wide version of the Alpair 12P. The marriage between 7P and 12PW promises much in the way of deep rich bass and fine mid-high range detail.
| ReVc | 5.4 Ohms |
| F0 | 73.412 Hz |
| Sd | 50.270 cm² |
| Vas | 5.587 Ltr |
| Cms | 1.557m M/N |
| Mmd | 2.814m Kg |
| Mms | 3.019 g |
| BL | 3.525 TM |
| Qms | 2.824 |
| Qes | 0.605 |
| Qts | 0.498 |
| Levc | 16.780u H |
| No | 0.353 % |
| Spl Spl |
87.500 dB |
| X max | 4 mm 1 way |
| Coil Dia | 20-mm |
Additional information
| Weight | 2 kg |
|---|---|
| colour | Gold, Grey |
| BL | 3.83 g/CM |
| CMS | 1.27 uM/N |
| FS | 70.9 Hz |
| LE | 21.3 uH |
| MMD | 3.75 g |
| MMS | 3.94 g |
| QES | 0.65 |
| QMS | 3.07 |
| QTS | 0.54 |
| RE | 5.4 Ohm |
| SD | 5.02 K mm/2 |
| SPL | 85.8 dB (cover on) 85.2 dB (cover removed) |
| VAS | 4.58 Lts |
| X MAX | 4 mm (one way) |
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