jazzwave wrote: > I'm looking up-grade PS for my SBT, linear Power Supply (PS) was in my > radar. But the good one (as informed in some forum) with >$300 price. > After read this thread , I decided to buy iPower 5V before jump to $400 > linear power supply > > Received iPower 5V last night, replaced the original SBT power supply. > I can hear the different compare to OEM, more quite, vocal more clear > and enjoyable. No impact to soundstage, still same. > But I have to turn amp volume higher to have same level with OEM ps > (suspected OEM deliver 3A and iPower only 2.5A) > > > Not bad for $49 solution...:cool: > So far I'm happy with this solution and save my money > > ~ron~
. April First has long passed so please don't post such incorrect rubbish based on your perception that your ears are somehow calibrated test equipment! Output volume is NOT affected one bit by excess current, it is neither louder or lower output. And since the 2.5 Amp is close enough to spec (especially for the analog op-amp section), you aren't hearing any differences whatsoever! More over, the SBT has multiple internal switching supplies inside the unit so changing the external power supply as ABSOLUTELY NO EFFECT on the Touch performance as long as said PS delivers the minimum required voltage and current while being designed to use with audio equipment (clean enough). The Touch is NOT an audio amplifier driving speakers where available excess PS current is used to aid dynamic headroom! The only way to even remotely improve the output specs of the SBT is to disable the internal switching power supplies and feed those circuits directly with the proper DC voltage from battery sources. I have accomplished this and measured the improvement with actual test equipment, it however is not even remotely worth the time and expense to do this when one can just feed a high end DAC for a much better result using the Touch only as a file transport! I would not have done it if Caleb hadn't sent me a box full of "beyond bothering to repair" Squeezebox units! Simple way to prove this is to buy a 6VDC battery and feed your Touch with it! Zero ripple, zero noise, zero feedback, zero hum, zero ground loop, nothing but perfectly clean power with all the reserve current one can image if you use a 6VDC 10Ah rechargeable battery! You will not hear any difference unless the actual AC power supply you are currently using is DEFECTIVE! Linear Power Supplies are a useless addition to a Touch as well as a waste of money with the SBT. No real improvement is possible (other then a slight improvement from using a battery as the external power source, especially if ones mains are really dirty with the switcher passing that onto the Touch). *iPhone* Media Room: ModWright Platinum Signature Transporter, VTL TL-6.5 Signature Pre-Amp, Ayre MX-R Mono's, VeraStarr 6.4SE 6-channel Amp, Vandersteen Speakers: Quatro Wood Mains, VCC-5 Reference Center, four VSM-1 Signatures, Video: Runco RS 900 CineWide AutoScope 2.35:1, Vandersteen V2W Subwoofer Living Room: Transporter, ADCOM GTP-870HD, Cinepro 3K6SE III Gold, Vandersteen Model 3A Signature, Two 2Wq subs, VCC-2, Two VSM-1 Office: Touch with Vandersteen VSM-1s Kitchen: Touch in-wall mount w/ Thiel Powerpoint 1.2s Bedroom: Squeezebox BOOM Bathroom: Squeezebox Radio Around the House: SliMP3, SB1, SB2, SB3 Ford Thunderbird: SB Touch, USB drive Ford Expedition: SB Touch, USB drive ------------------------------------------------------------------------ iPhone's Profile: http://forums.slimdevices.com/member.php?userid=13622 View this thread: http://forums.slimdevices.com/showthread.php?t=82648 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
