Got a second hand Director for £225, which I think is really a steal. The first impression about the sound is natural and balance. The sound is a little warm but not too much. Great transparency and a little sweetness. The sound signature is definitely more musical than analytical. I like it very much! But to be honest, sound quality wise, I didn't think it is worth £450, until I borrowed an Aqvox usb power supply from my friend. This combo just blew me away. There are improvements in every aspect. Darker background, wider soundstage, better extension at both high and low frequency, more 3D image and smoother. If you want to quantify this improvement, I would say, about 25%. But that is just my own opinion. Now, it is the best sub-£1000 DAC I 've ever listened to.
I have ordered an ifi iusb power supply as well, which should arrive tomorrow. I will do a AB comparison between those two to see if I can hear any difference. Would like to share that experience with you guys here.
The weak point of my system is dynamic. When playing some fast rhythm music, the instruments seemed to be out of control and the extensions were not that good as slow music was played. I don't know it is more due to Director, or due to my amp.
My system is 2011 iMac - Supra USB cable - Meridian Director (with Aqvox USB Power Supply) - Earmax Pro Headphone Amp - Grado RS1i / HD800. Software wise, I use Audirvana Plus + itunes.
Although the amp can not drive HD800 very well, it is still enjoyable. Very musical and sweet mid frequency. HD800 is borrowed from same friend again, who is on 10-day holiday soon. He is using Chord Red Reference 3 as sound source. When he is back, maybe we can do a comparison between this super expensive CD player (£14000) and Director. But I am not too sure if we have time. We shall see.
Add: Director does not work with my iPad air via apple camera kit. A warning like not enough power was shown, although Director was powered by Aqvox.