My JT Dynamic power supply was wired by Jason with a custom power cord that eliminated the adaptor normally used for a Sensation. However, the Red Wine Black Lightning battery supply I use needs the adaptor cord to use with a Sensation. Seth once mentioned there is no difference using the adaptor, and I believe it. The sound of the two supplies is exactly as described by numerous listeners- the battery quieter and more pure, also better focus, the big AC supply more bloomy, with bigger images, though a touch noisier (but never bothersome). I normally use the JT supply, it's just more convenient for me.