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Post by MartinT on Dec 8, 2019 3:26:31 GMT
I've now sold my Pass preamp and said goodbye to classic preamps in my system. The Burson buffer has been a surprising success, with the LKS on volume duty, and the sale of the Pass has allowed me one more major upgrade. I decided some time ago that I could cast yet more attention on the power side of things.
On its way is a brand new PS Audio P3 regenerator, courtesy of David at MCRU. My thinking is to split regenerator duties into source components fed from the P3 (a newer very low noise and distortion design), and the power amp fed from the P10. The combined source components will barely total 100W, giving the P3 lots of headroom and keeping it cool. Meanwhile, the Belles power amp idles at under 100W and the P10 can provide up to 1.5kW dynamic peaks, this no longer affecting the delicate source components. Dedicated split power.
I have a few things to tidy up: my Coherent interconnects feeding the power amp need to be modified for XLR to phono operation (so that I can remove the adapters). I have a spare MCRU power cable but will think about upgrading to a Coherent power cable for the P3 at some point. I need to experiment with SR fuses and have asked for an Orange to feed the P3. Finally, I need to listen to Tony's modified Mutec and decide on whether to have those mods done to mine. These are all minor things, no need to rush into them.
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Post by jandl100 on Dec 8, 2019 7:42:29 GMT
Right, I've moved all the unnecessary unrelated loblox off of my thread. Damn. I'm doing catchup on this thread and I am wondering what I missed! I've found the same with my modded MF X10v3 buffer as you with the Burson, Martin. I now use the volume control on my Audiobyte DAC and it sounds great.
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Post by MartinT on Dec 8, 2019 16:38:02 GMT
I've just checked my idle power consumptions for interest.
Combined streamer/reclocker/DAC/buffer consumption: 63W (P3 maximum continuous 300W) Power amp idle consumption: 50W (P10 maximum continuous >1kW)
It means both regenerators will have more than ample headroom for best performance.
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Post by mattspl on Dec 8, 2019 19:19:20 GMT
Sounds like a great upgrade plan you have. I look forward to hearing how the P3 helps things further.
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Post by MartinT on Dec 9, 2019 15:01:14 GMT
Sod it, I asked DB to include two SR Orange fuses in the deal. Might as well put the best into both regenerators. I can then move my SR Blue to the power amp, SR Reds on all other cables.
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Post by Deleted on Dec 9, 2019 15:30:12 GMT
I will be interested in how the grounding works out with two separate 240V supplies feeding the system, as in the PD between the two separate conditioners?
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Post by MartinT on Dec 9, 2019 15:41:26 GMT
Yes, so will I! Given it some thought, unable to come to a conclusion.
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Post by SteveC on Dec 9, 2019 19:55:16 GMT
Sod it, I asked DB to include two SR Orange fuses in the deal. Might as well put the best into both regenerators. I can then move my SR Blue to the power amp, SR Reds on all other cables. Tony put an Orange SR fuse in the BD power cord I bought from him on Saturday! I've moved the Blue SR fuse that was in the BD to a the PC feeding the DAC (as recommended by Tony)!
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Post by MartinT on Dec 10, 2019 7:04:17 GMT
Last night my system had improved further. How can this be? I haven't touched anything for a couple of weeks and the power cycling has been the norm for me (source components left on, power amp switched on 30 mins before listening). I guess the Burson is still settling in.
I was listening to Room 335 by Larry Carlton and it sounded quite different. The sense of space in the recording was strong while that bass just oozed power. Meanwhile, the attack in the drums had noticeable snap.
I should receive the new PS Audio Stellar P3 regenerator today and I'm going to be careful to perform one change at a time, with the least disruption to the other components.
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Post by brian2957 on Dec 10, 2019 7:10:36 GMT
Didn't know SR had a new fuse out Martin . I take it it's above the Blue in the pecking order . I'll be interested in your opinion on those .
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Post by MartinT on Dec 10, 2019 7:20:37 GMT
I take it it's above the Blue in the pecking order . I'll be interested in your opinion on those . Yes, the SR Orange is new and the top of the line fuse, above the Blue. I'll let you know as I'll swap one into the P10 regenerator before doing anything else and have a listen. If you want to know why, this is Synergistic Research's explanation (please don't ask me questions about it)...
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Post by brian2957 on Dec 10, 2019 8:29:23 GMT
Thanks Martin , I'll just take their word for it Anyway , the opinions of real people matters more to me than technical explanations .
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Post by The Brookmeister on Dec 10, 2019 19:22:17 GMT
Thanks Martin , I'll just take their word for it Anyway , the opinions of real people matters more to me than technical explanations . Which rock have you been hiding under Brian (lol) Orange is the new blue. Maybe its lemon next who knows.
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Post by brian2957 on Dec 10, 2019 19:43:14 GMT
Hello David , hope you are well A big Scottish one it seems LOL . Can't afford such fripperies I'm afraid , so I don't bother looking .
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Post by MartinT on Dec 10, 2019 21:34:57 GMT
Tonight I made the following changes. I placed the new P3 regenerator above the P10 on the left-hand middle shelf. It's powered by an MCRU No. 9 cable with Furutech gold plug and an SR Orange fuse. The P3's rear panel fuse is stock at the moment, which slightly spoils the goodness of the Orange fuse but I'll deal with that later. I moved the QP-1 PSU (powering the Asus and Mutec), the LKS DAC and the Burson buffer to the P3, switching all sockets to regeneration. The total power consumption is a little over 60W and the P3 runs barely lukewarm. I then switched the P10 regenerator's Coherent BD cable to an Orange fuse and moved the Blue fuse to the Belles power amp Coherent 6D cable. Again, the P10 rear panel fuse is an SR Red, so not getting the best out of that Orange either at the moment. The P3 sits on Black Ravioli Big Pads, as does the P10, and has a granite mat on top (leaving most of the air vents free). There appears to be no issue whatsoever wth powering different components in the system from two different regenerators. No mechanical noise, no electrical nasties. The idea I had been mulling over for a while was to split the power duties between two regenerators, leaving the older P10 to handle the power amp with its huge reserves of power, and the newer lower noise P3 to handle the source components. Both are set for sinewave output. I moved the ifi iPurifier from the previously vacant socket to one in the electricity cupboard on the same radial, next to an IsoPlug. The photo shows all displays on - I usually have them all off. I left everything warming up (a relative term as everything runs cool, the DAC probably getting the warmest of the lot). To summarise my listening evaluation, this setup has exceeded any expectation I might reasonably have had for system improvements. Across a whole gamut of different genres, there was more music coming through than I had heard from mostly familiar material. Instruments in the stage were more firmly fixed in position, the drums in Carlton's Room 335, for instance, not just sounding like drums but aurally appearing as a drum kit. Impact from the sticks was greater and the bass had developed a menace in its growl. The stick work in Patitucci's Messiaen's Gumbo was even more startling. The soundstage in Emmylou Harris' Goodbye was wider, deeper and the subsonic bass air waves at the start even more obvious. Yello's Tied Up had bongos that now jumped out of the mix while the hand clapping in Alhambra was vivid and attention grabbing and that descending bass note in Junior B really had the room shaking. Everything I played had more 'shape' in the soundstage, had more potent bass and sharper dynamics. Things left to do: have Tony re-make my Coherent interconnects from Burson to power amp with XLRs at the Burson end, to remove the Chinese adapters; eliminate all rear panel fuses which double up with the ones in the plugs; consider another Coherent power cable for the P3; consider more Orange fuses for the other cables.
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Post by The Brookmeister on Dec 10, 2019 22:09:30 GMT
Your rack seems to be standing on spikes on the hard floor correct?
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Post by MartinT on Dec 10, 2019 22:13:46 GMT
Your rack seems to be standing on spikes on the hard floor correct? Not spikes, RDC Cones. I modified it some years ago. No spikes in my system at all.
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Post by jandl100 on Dec 11, 2019 6:01:40 GMT
A very impressive looking setup, Martin. Congrats.
Have you considered trying 'floating' any of the gear in a similar way to the speakers on their Townshend Podiums? Or do the BRs have the same effect?
But ... Aw, shucks - the 3 components on top have got little hats on! I think I'd have problems with that.
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Post by MartinT on Dec 11, 2019 6:20:28 GMT
Thanks, Jerry.
The Solid Tech system rack used to float on sprung feet but I found it too floaty and difficult to rest level. I then converted it to take RDC Cones for feet and they do a great job. The top source components are further isolated on Electric Beach shelves and everything rests on Black Ravioli or RDC Cones or both.
The 'hats' are just large sorbothane feet for further damping on top of the granite coasters.
The flash photo is very stark, it doesn't look nearly as garish in real life and the cables don't show as badly. However, aesthetics are a lot less important to me than sound.
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Post by MartinT on Dec 11, 2019 6:27:52 GMT
Just to explain component positioning:
- Signal flow is from the router (out of shot) via the Tinker Board S at top-centre, over to the right and down to the power amp.
- DC power flow is from the QP-1 at top-left, to the top-centre Tinker Board S and Mutec at top-right.
- Source power flow is from the P3 middle-left, up and to the right.
- Main power flow is from the P10 bottom-left to the power amp bottom-right.
This arrangement satisfies my sensibilities and keeps all cable as short as they can be.
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