因为买的时候没有去细心了解AQ线各系列的功能。今天刻意去了
http://www.audioquest.com/ 看过。
先谢谢楼上的价格参考。我的SR15/4确实买贵了，但是现在也不确定是否真品。
但是以官方的设计，SR系列是比FLX系列高一点点的。在官方下载的pdf看到这段话。
The SR cable series is most unusual because each cable has a 100% coverage shield. Each conductor is
tightly held in high temperature PVC and the overall cable is jacketed in a slippery high temperature PVC
jacket. This outer jacket is abrasion and heat resistant, and can be used in a variety of harsh environments.
The SR-16/2 and SR-16/4 cables sound better than the FLX 16/2 and FLX 16/4, have lower resistance,
and are shielded. A tape under the jacket of SR cables is printed with sequential feet numbers.
大意是，SR是SHIELDED ROUND的缩写，意思是屏蔽的圆柱。
所以SR系列比起FLX系列有屏蔽性，耐热，耐磨的特性，所以是比flx系列贵的。
也去过国外的电子商务网站，FLX都买￥44-50美元的。这个很不解。国外卖这么贵。
AudioQuest FLX 16/4 uses 4 of the same conductors found in FLX 16/2. The 4 conductors
are separately color coded so that they may be used with two conductors tied
together (13 awg, 2.27sq. mm) to carry a single channel signal, or separately so one
cable can carry two signals.
一位国外的网友这样对比这两款线：
Just upgraded to the SR (Shielded Round) 15/4 series. Very nice and a better more silky treble compared to the FLX16/2 I was using earlier. Needs a wee bit more bass though but since these cables are sponsored I'm not complaining The SR15-4 consists of 4 X 15 LGC (long Grain Copper) awg wires and can be used for bi-wiring. When used for std setup 2 wire are combined into a 12 awg wire. Only downside I can think of is price and the size (diameter) of the cable. The large diameter makes it more difficult to route through tight areas.
http://www.audioquest.com/pdfs/custom_install/sr_series.pdf Logged
看来SR 5/14这款线不会至于我这个情况，要查查线的真伪。
