Phil Leigh;210238 Wrote: > Which rather begs the question, why then did he not improve the PSU of > the retail TACT? > > I'm very sceptical of this since I just did an experiment by > inserting/removing my TACT from the digital chain and can detect no > audible difference when the TACT is in or out (in RC bypass mode > obviously!) of the SPDIF chain. And before you ask - I'm not deaf and > have a system capable of resolving plenty of detail (e.g. STAX phones, > Linn Aktive system) - also I have my own master recordings as reference > and I know exactly what they are supposed to sound like, since I made > them that way... > > I'm not saying PSU's aren't important (they are!)...just that I find no > audible issues with the TACT in fully digital mode.
Generic power supplies have "built in" world wide compliance. These supplies can take all countries house hold voltages. Some of these supplies can be powered by 90vdc. This benefit the manufactures in many ways. It save alot of dough and time, for a manufacture to enter its product in to a given country. Plus have one product to accept any voltage is icing on the cake. Even though a manufacture knows he can design a power supply of a linear design that performs way better than a SMPS, they will never admit it will be better in sound quality. Ironic, A quality Linear PS, has less parts and can cost less, but depending on current demands, They use larger / heavier transformers that can raise the cost beyond a SMPS. If you take a look at Spec sheets, for example, The AKM Dac Used in the Transporter, these specs are measured feeding the chip lab quality power. Many manufactures tend to use these specs of the chip, as the specs for thier Product. Meanwhile the design of the curcuit, the quality of the associated parts, and the quality of the power supply can have deverse effects in the measurments of the spec. in a end product. A good question to ask yourself, would be: What makes one components sound better than the other? Take the answer and implement than answer to another component. What whould you have? Your findings with your system, by removing the TacT In and out of your system, I trully agree with you. I have repeated the same results on my end. Now if you take a highly refined TacT unit, and do the same test, you will notice a huge improvment of sound quality with the TacT in place in bypass. The effect is similar to a Big Ben, if you ever tried one, between the SB3 and TacT. These result has been duplicated many times by myself and my customers. Yes, I know, you would figure less is best... but this is not the case. One thing you may want to try, are you using the SPIDF or Toslink connection? did you compare both? AP -- aberdeencomponents ------------------------------------------------------------------------ aberdeencomponents's Profile: http://forums.slimdevices.com/member.php?userid=1234 View this thread: http://forums.slimdevices.com/showthread.php?t=26306 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
