Hi both! I have an external Mytek Brooklyn DAC which I *insist* on using with my Transporter, despite the scorn heaped upon me by the "experts" on this forum, because it most definitely sounds better to me than using the built-in DAC which was "magic" (per Sean Adam's own marketing hype in 2005 when I was a young man of 50, at least according to my birth certificate... :D - the *-real-* truth is that I have ALWAYS BEEN HERE since the dawn of time, just waiting for you good folk to show up!!). ;)
That aside, my DAC has a word clock out, intended of course for syncing multi-channel playback, but which allows me to follow Mr Adams' preferred connection using the XLR balanced digital output from the Transporter, but with the clock set by the DAC using a BNC cable to lock the Transporter's word clock in to the DAC's word clock out (I have posted about this elsewhere in this section of the forum, if anyone missed Sean's recommendation I'm sure that I can dig it out & stick it on this thread as well. One needs to slave the Transporter to an external clock using "Logitech" - read "Slim Devices!" :) - Media Server settings & then set the desired sampling frequency manually on the DAC itself which is the only downside. This is the reason that Sean put a word clock input on the Transporter in the first place... ). Being an avatar of The Dark Lord, I naturally still have "golden ears" which permit me to discern the difference, lol. This however is *-still -*not the point of this thread: I hope that you're still with me. MY MYTEK BROKKOLY (inspired nickname copyright Wombat!!) DAC ALSO HAS A 12V (NOMINAL) DC POWER INPUT, WHICH ENABLES ONE TO USE A SEXY EXTERNAL POWER SUPPLY WITH IT. I'm advised that anything between 7&14V DC will actually work, it's the ability to deliver dollops of current as required which is the important thing... Well, some of the "recommended" external PSUs come in at a cool £700 a pop! That has to be a *-lot-* of dealership margin, I mean how hard can it really be to design & construct a heavy-duty stabilised PSU?? SO, I had a think & concluded that if you want DC, you can't really beat a native DC source. For half the price of the aforesaid external mains PSUs, I have acquired a 24Ahr LiFePo4 rechargeable battery pack (which contains 4 x 3.2V cells, giving a nominal output voltage of 12.8V: this is comfortably within the 7-14V window). For safety's sake, I have a slow trickle- charger for it which will do the whole 9 yards from flat to fully charged in 8 hours overnight under my cooker extractor fan (even though it's a sealed unit & *-shouldn't-* emit any gas... ) overnight with a timer switch to turn off the charger after 2, 4, 6 or 8 hours. The real kicker is that this little beastie (intended for powering an electric golf buggy, lol) has a continuous current rating of 30A, & a transient rating of 90A - clearly it is a very GOOD IDEA to triple-check the polarity when rigging up the 2.5mm power plug required by the Brooklyn (incidentally, I haven't been able to source one of those rated above 5A although I do have one with screw terminals on the back... ). I've got a lot of sh*t on just atm fighting City Hall & the like, but just as soon as I get a "round tuit", I shall report back!! Dave :cool: ------------------------------------------------------------------------ Golden Earring's Profile: http://forums.slimdevices.com/member.php?userid=66646 View this thread: http://forums.slimdevices.com/showthread.php?t=108895
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