When we replaced 6 op-amps with Burson discrete ones, oscilloscope showed some noise. So, initially we thought of power supply. Frankly, the guy who did the mod had some available (dedicated toroidal power supply + super regulators), but after he installed it (to feed op-amps) he could not see the benefits (noise remained)
The outcome of this test showed us that the power supply of Transporter is very good (no similarities to SB3 at all). Few days after we tested modded Transporter against EMM Labs XDS1 player (one of the most expensive on the market and considered to be one of the best) - http://www.emmlabs.com/html/audio/xds1/xds1.html Rest of the system was on par with this machine, such as Von Schweikert VR-7 speakers.. We listened for five hours via Transporter digital output AES/EBU fed to EMM input, EMM CD source, and Transporter modded analog output. While Transporter's analog output was close to EMM's (small difference was mainly in the high-frequency area, Transporter was more extended), digital was the same. We did switching between preamp inputs every few minutes.. No difference.. And we all have (we were group of three people) 'audiophile' ears :-) So, I would not perform digital-only mod.. -- michael123 ------------------------------------------------------------------------ michael123's Profile: http://forums.slimdevices.com/member.php?userid=23745 View this thread: http://forums.slimdevices.com/showthread.php?t=76496 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
