Alpair 12PW
140mm Widerange drive unit 
8ohm    single ferrite magnet
- Variation on Alpair 12P optimised as widerange midbass
 - 7in natural blue uncoated reinforced paper cone
 - Operating range to 10KHz
 - Very low-profile multiform cone for broad directivity pattern
 - Advanced low-distortion motor design
 - Long-stroke hybrid mono-suspension with arrestor and progressive-rate spider
 - Self-damping reinforced polymer basket
 
Description

The Alpair 12PW is a audiophile grade paper and glass strand re-enforced coned bass-mid driver. Along with its Full-Range sisters drivers, 6P,10P and 12P, the Alpair 12PW is designed for the Serious music listener. The 12PW’s relatively flat response is designed to deliver a neutral sound. The mid-high range gradually falls away above 10kHz.
The development of this driver follows its Full-Range sister unit, the Alpair 12P. Both drivers are Semi-Free-To-Air designs, relying solely on their rear suspensions for mechanical operation. The Alpair 12PW has a re-enforced rear suspension and a new coil to enable handling of typical audiophile low frequency loads (not constant low frequency loads).
The 12PW has a long mechanical throw, limited by its Arrestor to 8.5mm (1 way). This driver is a low-mass design, its power-train has a moving mass of 11.7 grams yet delivers a Vas of 45 litres with a total Q of 0.39, making it ideal for larger scale purist box designs.
An all-new computer controlled bonding process is deployed on this driver, delivering ultra tight tolerances in critical parts of the 12PW’s power-train assembly. !
The 12PW is primarily designed to be partnered with the Alpair 7P yet will also be a excellent partner for many tweeters. The marriage between 7P and 12PW promises much in the way of deep rich bass and fine mid-high range detail.
| RE | 5.4 Ohms | 
|---|---|
| FS | 38.4 | 
| SD | 147.410 | 
| VAS | 45.3 | 
| CMS | 1.468m M/N | 
| MMD | 10.658 g | 
| MMS | 11.687 g | 
| BL | 5.308 T/M | 
| QMS | 1.440 | 
| QES | 0.541 | 
| QTS | 0.393 | 
| LE | 49.3 uH | 
| SPL | 88.6 dB | 
| POWER (NOMINAL) | 40 Watts | 
| X MAX | 8.5 mm (one way) | 
| COLOUR | Paper | 
Additional information
| Weight | 2.6 kg | 
|---|---|
| Dimensions | 45 × 45 × 25 cm | 
| RE | 5.4 Ohms  | 
		
| FS | 38.4  | 
		
| SD | 147.41  | 
		
| VAS | 45.3  | 
		
| CMS | 1.468m M/N  | 
		
| MMD | 10.658 g  | 
		
| MMS | 11.687 g  | 
		
| BL | 5.308 T/M  | 
		
| QMS | 1.44  | 
		
| QES | 0.541  | 
		
| QTS | 0.393  | 
		
| LE | 49.3 uH  | 
		
| SPL | 88.6 dB  | 
		
| POWER (NOMINAL) | 40 Watts  | 
		
| X MAX | 8.5 mm (one way)  | 
		
| colour | Paper  | 
		
							
						














Reviews
There are no reviews yet.