So I believe Ralph was referring to impedance compatibility between many ARC and Pass models as being marginal. Of course, "marginal" probably means that a reasonable case could be made both for and against.
Regards,
-- Al
Esoteric C03 preamp or Mark Levinson 326S preamp- ANY and ALL FEEDBACK / HELP PLEASE
Magico S5 Loud Speakers
Bricasti M1 Special Edition DSD DAC
Pass Labs X350.5 Balanced Stereo Amplifier
PS Audio P10 Power Plant Regenerator
Kubala-Sosna Emotion 2.5M Speaker Cables
Assorted IC's Balanced and Single ended.
Digital PC based front end that I have been tweaking and evolving:
Transport: microRendu 1.4 and Full Suite of UpTone Audio Premium Power Supplies (2)x LPS-1 and (1) JS2 LPS - (2) Regens - the new ISO and an Amber and all powered with premium/custom Canare / Oyide DC cables for all power supplies plus the great Tellurium Q Black Diamond Reference USB cable and a Curious Regen Link USB Cable.
Really appreciate any help you can provide on these 2-preamps. If you would like more info please let me know - all comments and feedback are most welcome and deeply appreciated :)
Thanks guys/gals
I suspect that Ralph’s statement about ARC preamps being "at their limits working with the Pass Labs amps" refers to the fact that most ARC preamps and line stages have a recommended minimum load impedance of 20K, as can be seen in the specs for a great many of their models that are posted at arcdb.ws. Although ARC's specs don't make clear if that recommendation applies to balanced or unbalanced interconnections, or both. While many Pass amps have input impedances spec’d at 20K unbalanced/30K balanced (although the input impedances of most or all of the latest Pass models are much higher). So I believe Ralph was referring to impedance compatibility between many ARC and Pass models as being marginal. Of course, "marginal" probably means that a reasonable case could be made both for and against. Regards, -- Al |
A good customer bought the Esoteric C03 and after listening to it in his system thought it actually broken b/c it lacked air, dynamics and just had no life. He brought it to my place and it collapsed the soundstage and he was right it took the life out of the music. Based on this he sent it back to Esoteric to verify everything was fine with the unit, got it back and no change in sound. So based on using this pre-amp in 2 different systems I would not recommend it although it does get excellent reviews. I too use the Bricasti M1SE and also an Atmasphere MP1 but full disclosure I'm a dealer for each but have found no better YMMV. Have never heard the ML 326S. (Dealer disclaimer) |
sksos1 thanks for the information. I have heard from more than a few people the C03 can be a great preamp but many think it is sort or bright, etched and can be flat if there is nothing else in the chain to round out the lower mid-bass ie, tubes, warm cables,etc. Glad to hear from a fellow Bricasti owner. The only thing I have had left over from my old system that I have no desire to change at all. There may be better out there but each change I have made in my system it has advanced with this being my source. It seems to have no ceiling or at least at the level I am operating at. I am sure there are many that have much better systems than me and for them maybe they expect more but I have been extremely happy with my Bricasti from day 1. So I a deciding on a new preamp on Monday and basically everyone on here has told me they think the Mark Levinson 326S is the unanimous choice. Anyone else. I have until tomorrow when I am going to decide so would love any/all feedback between now and then. No matter how little or whatever info is really appreciated. |
There are two newer versions of the C03, being C03x and later C03xs. Sound stages & Sound stages Ultra reviewed these units as well as the C02, which is a higher up model. from what I remember, one of the reviewers in replying to letters stated that these units have a "lovely romantic sound", but that they don't have that oomph for the bottom end. since your Amp is a Pass, have you considered the Pass preamps like P20 or P10? They may have better synergies together... if you're in Europe then there were a few of the Passes for sale on different boards just recently, and if in Asia then one or two units out of Hong kong on the bay... I looked at the 326 for my Levinson amp and all the reviews were all good, however there wasn't that much enthusiasm about it which I suspect was due to it's relatively high cost at the time it first came out ($10k circa 2006)...so I guess this to be a very good unit especially if you can get it at a good price... still I'd suggest, if at all possible, to listen to anyone of these before purchase to make sure they match the rest of your system, and think twice about the synergies of the Pass preamps... Good luck |