#11
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I've just found that you need to try different types of footer solutions under dfferent components or devices, there's no one "perfect solution" for every thing or every application. This is because there is a lot of variation with respect to different components, their function or the functional responses they produce, and how vibration or mechanical energy may impact that specific function in particular. And, as well, how the component is constructed and the materials it's made from, what it's resting on, etc. The clocks in digital devices, in particular, are very sensitive to vibration, for example. First time I put a set of EVPs under my REL sub, it was a revelation because it made...the room itself significantly quieter. Quote:
So..you have to be a scientist. You have to do controlled experiments and keep a lab notebook. You have to try things and also examine, sometimes, multiple factors at once that interact. If you look at the panel at the lower left of this graphic, entitled "Interaction Profiles", which is a DOE I did to optimize integrating my sub to my 2-channel mains, you can see there is an interaction between sub gain and crossover, because the red and blue lines are converging. *–Interactions are common in science and engineering, yet students are never taught to consider them in their OFAT approach. An interaction that is particularly common in chemistry and engineering is...the Time*Temperature interaction. Wanna bake some cookies? Well, the Time*Temperature interaction is what results in a properly baked cookie. Not time, not temperature, the INTERACTION is what is important. ☨–when I refer to noise factors here, I'm referring to "statistical noise", factors that shift the functional reponse (mediated by a transfer function) off the mean or median, or add variance, or add both. All functional responses have some level of "noise" as there are no perfect transfer functions in the real world. Cheers, Pete!
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. Last edited by Puma Cat; 02-06-2022 at 02:53 PM. |
#12
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In my experience with Stillpoints footers, the real estate mantra applies: Location, location, location.
The natural inclination to place the footers in a symmetrical three- (equilateral triangle) or four-footer (rectangular) configuration seems to work in most instances. But I've found that the weight distribution and/or power transformer location of some components renders asymmetrical placement more effective in maximizing audible improvements in noise reduction, detail retrieval, and soundstage presentation. This is true of Ultra Mini placement under my TEAC UD501 DAC (replaced by a UD505) and Ultra SS positioning under my c-j MF2500. Symmetrical placement of four footers under the 501 "thinned out" the sonics. In view of the 501's "off-balance" distribution, I spent some time determining where best to place three footers (yes, doing this can be a PITA) and hit sonic paydirt with an asymmetrical configuration that rendered the DAC a different, far more pleasant animal. With the MF2500, I stuck with four Ultra SS, but given the amp's power transformer location and resultant "cockeyed" weight distribution, it was evident that rectangular footer placement wasn't going to cut it. Playing with footer configurations under the 56-pounder (all the while dodging the side-mounted heat sinks) was no picnic, but I could hear perceptible-enough differences with various footer placement schemes (I'm sure my cardiologist would have had a cow if he knew) to make the effort worthwhile. I'm of course not done. The UD505 has three stock feet with manufactuer-claimed special isolation properties. So I'll be testing that against both the Ultra Mini and the Ultra SS to see which footer and configuration profile hits the mark.
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Jim Bedroom: Aurender N150, TEAC UD-505 (AKM version), EMIA Cu Elmaformer passive line stage, conrad-johnson MF2500, Paradigm Studio 20 v5. Shunyata Delta D6, Altaira CG hub. Shunyata Alpha XC, Delta NR v2, Alpha USB, Alpha and Venom CGC/SGC. Wireworld Eclipse 8 interconnect & speaker cables. Stillpoints footers, Butcher Block Acoustics maple platforms. Stillpoints and GIK acoustic panels. Home Office:Windows 11 PC/JRiver 31, TEAC UD-501, Luminous Audio Technology Axiom II Walker Mod passive, conrad-johnson Sonographe SA-250, Paradigm SE-1. Shunyata Hydra (Original Version), Venom 10 NR. Wireworld Eclipse 7 interconnects. Blue Jeans speaker cable. Living-Dining Room: Windows 11 Laptop/JRiver 29, Oppo BD-83, TEAC UD-501 DAC, SOTA Sapphire TT, Graham Slee Era Gold V, Ortofon 2M Black, McIntosh MR-77, c-j Sonographe SC-25, c-j MF2500, Paradigm SE-3. Wireworld 8 IC, Blue Jeans SC. Shunyata Hydra 8 v.2, Shunyata Delta NR, Venom NR. GIK 244 bass & scatter-plate panels. |
#13
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Shown here, data plotted in JMP measuring vibration as Imparted Power, RMS using VibSensor.
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#14
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A few notes: my first toe dip into Stillpoints waters was buying two quads from an AAer at a price too low to mention. I intended to put them under my speakers but unfortunately it was one of the rare cases Ivan couldn’t get an adaptor for. So the first quad went under my PS Audio P5 (since semi-retired for a Shunyata Hydra Sigma S12). I can tell you the Stillpoints and PS Audio regenerators are a great match and work very well together. I got cleaner sound and darker background. After a couple of months I put the other quad under my PrimaLuna integrated amp and that just magnified the effect, all for the positive. Since then I have added minis under my sources. I just got an Uptone EtherRegen and after reading this string I am going to unretire some Herbie’s Tenderfeet I have to try under it.
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Office/Music Room Dynaudio Heritage Special. Uptone Audio EtherRegen Ethernet Switch. Akasa NUC 10i7 with Roon Rock. Bryston BDP-3 Digital Music Player (with 4 Tb Internal SSD and Synology DS920+ NAS)-->Holo Audio May Kitsune Edition DAC-->Shunyata Sigma USB—>Gryphon Diablo 120 Integreted Amp w Transpatent XL PC. Oppo BDP-105D and BDP-203. Power: Shunyata Hydra Sigma S12 PD. Additional Cabling: WW Silver Electra PC, WW Electra PC, Shunyata Venom 3 PC. Digital: WW Starlight Ethernet, WW Gold Starlight AES-EBU, WW Platinum Starlight USB. IC and Speaker: WW Eclipse 8. Bedroom System Ipad with MusicStreamer App-->Schiit Jotunheim DAC/Amp—>Audeze LCD-XC, Focal for Bentley Radiance HO, Massdrop E-MU Teak HP. AK SE 200 DAP. Mobile Survival Kit Astell & Kern SP1000M. Noble Kaiser Encore IEM with Double Helix Balanced cable, Westone W80 IEM w ALOaudio Ref 8 cable, Westone W60 IEM, Shure se535 Ltd with Westone Bluetooth Wireless cable-amp. Mark Levinson No. 5909 Wireless HP. |
#15
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Gentlemen....thanks for all the input. Quite a bit to digest, but briefly:
Stephen....the vibration app looks interesting. Is it only available for iOS? Also I agree with your comments about quieting the room itself rings true. I need more time to study everything you posted. Jim...yes, I've heard that experimenting with placement can have benefits. With my MC501 amps this isn't very practical given the weight of the amps and how they are situated. I'm using the threaded adapters as well. I'm more than thrilled with the results. I may do some experimenting with the placement of my ultr minis under my MCD1000 and MDA1000, I'm using 4 on each unit, using the "conventional wisdom" that 4 are more effective than 3. robfine...thanks for your input re using Stillpoints with PS Audio re-generators. I'm becoming more and more interested in trying this. I'm thinking maybe ultra minis would be the ticket with my P12.
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Pete No. 35 Main System: VPI Prime Signature TT in Rosewood, Ortofon Cadenza Black, Stillpoints LP1 V2, McIntosh: MP100, MR78, MCD1000 Transport on Stillpoint Ultra Minis, MDA1000 D/A Converter on Stillpoint Ultra Minis, MS750 Music Server, C40, MC501's (3), Soundcraftsmen: DC2215 Eq/AS1000 Real time analyzer, DBX 3BX II, Carver C9, Nakamichi Dragon, Crown SX724, Crown D-75A (as headphone amp), Sony XBR55X900E 4K TV, JBL L220A's, JBL B460, Sumo Delilah active crossover, WireWorld Silver Eclipse audio interconnects, WireWorld Starlight and Silver Starlight Coaxial Digital interconnects, Wireworld SuperNova 7 Toslink digital interconnect, WireWorld Aurora 7 and Silver Electra Power cords, Wireworld Silver Eclipse 8 speaker cables, Terk AF-1 Powered Antenna, Oppo UDP-205 4K Blu-Ray Player, Bryson BUC-1 USB Converter, Wireworld Gold Starlight XLR Digital interconnect, PS Audio Direct Stream Power Plant 12 on Stillpoint Ultra Minis, PS Audio Dectect, FuruTech Flux-50 NCF Inline Power Filter, Add-Powr Wizard EM Field AC Line conditioner; Stillpoint Ultra SS's under (3) McIntosh MC501 Amplifiers Florida Room/Art Studio System: Harmon Kardon T60 TT/Ortofon 2M Black, McIntosh: MR77, C32, MC2205; Crown Power Line Four, Wyred for Sound DAC-2 Digital to Analog converter, Soundcraftsmen AE2000 Eq, JBL 4313B's, JBL 2241-based Sub, JBL BX63A Active Crossover, Oppo BDP-105D Blu-Ray Player, Samsung 5500 Series 32" Smart TV, Terk AF-1 Powered Antenna Master Bedroom System: McIntosh: MX120 Theater processor, MC206 6-channel amplifier; MR74 AM/FM Tuner, Oppo UDP-203 4K Blu-ray player, JVC HM-DH40000U D-Theater Digital VHS, Phase Technology PC80 Towers (now used as stands), (2) JBL 4401's, (1) JBL Studio 6IW speaker, (2) JBL Studio 6IC speakers, Sony XBR-49X900E UHD TV, Panamax 1000 Line Conditioner, (2) JL Audio E110 Subwoofers, Wireworld Solstice speaker cables, Wireworld Aurora Power cords, Wireworld Equinox and Solstice speaker cables and various other flavors of Wireworld and Audioquest cabling Office System: Marantz 150 Tuner, Crown DL 2, Crown EQ 2, Crown SA 2, Crown D-75A (as headphone amp), McIntosh MCD7009 (as transport), DBX 3BX Series II, Oppo BDP-103 Blu-ray player, JBL 4401's, JL Audio E112 Subwoofer, Samsung 5500 series 32" Smart TV, Wire World Oasis audio interconnects, Wire World Solstice speaker cables, Wyred for Sound DAC-2 DSDse Digital to Analog converter, Wireworld Starlight Coaxial Digital Interconnect, Sennheiser HD800 Headphones, Sennheiser HDVA600 Headphone amp, Wireworld Silver Eclipse Balanced Interconnects, Wireworld Platinum Starlight USB Cable, Add-Powr EAU-2 AC Harmonic resonator High Resolution Source: HP Omen 17" Gaming Laptop |
#16
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Also available for Android... https://download.cnet.com/VibSensor/...-78370653.html
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#17
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Pete,
Very nice write up - some of Dan is channeling through you. One knock I have on VPi turntables are their isolation feet, or lack there of. I had terrible audio feedback through my Aries 3 x 3D table. Ivan worked with me to help solve this nagging issue. Between the Ultra 5s and HRS platform my table (audio room is on a second floor - suspended no less) I have nothing but audio bliss. When I spoke to MFremer about my headaches with vinyl playback he knew one of the culprits were the mini-HRX feet on my Aries 3. I can now listen as loud as I want with no feedback/rumble nightmares. It was by no means a cheap fix.
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“Life is what happens to you while you’re busy making other plans” |
#18
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Pete No. 35 Main System: VPI Prime Signature TT in Rosewood, Ortofon Cadenza Black, Stillpoints LP1 V2, McIntosh: MP100, MR78, MCD1000 Transport on Stillpoint Ultra Minis, MDA1000 D/A Converter on Stillpoint Ultra Minis, MS750 Music Server, C40, MC501's (3), Soundcraftsmen: DC2215 Eq/AS1000 Real time analyzer, DBX 3BX II, Carver C9, Nakamichi Dragon, Crown SX724, Crown D-75A (as headphone amp), Sony XBR55X900E 4K TV, JBL L220A's, JBL B460, Sumo Delilah active crossover, WireWorld Silver Eclipse audio interconnects, WireWorld Starlight and Silver Starlight Coaxial Digital interconnects, Wireworld SuperNova 7 Toslink digital interconnect, WireWorld Aurora 7 and Silver Electra Power cords, Wireworld Silver Eclipse 8 speaker cables, Terk AF-1 Powered Antenna, Oppo UDP-205 4K Blu-Ray Player, Bryson BUC-1 USB Converter, Wireworld Gold Starlight XLR Digital interconnect, PS Audio Direct Stream Power Plant 12 on Stillpoint Ultra Minis, PS Audio Dectect, FuruTech Flux-50 NCF Inline Power Filter, Add-Powr Wizard EM Field AC Line conditioner; Stillpoint Ultra SS's under (3) McIntosh MC501 Amplifiers Florida Room/Art Studio System: Harmon Kardon T60 TT/Ortofon 2M Black, McIntosh: MR77, C32, MC2205; Crown Power Line Four, Wyred for Sound DAC-2 Digital to Analog converter, Soundcraftsmen AE2000 Eq, JBL 4313B's, JBL 2241-based Sub, JBL BX63A Active Crossover, Oppo BDP-105D Blu-Ray Player, Samsung 5500 Series 32" Smart TV, Terk AF-1 Powered Antenna Master Bedroom System: McIntosh: MX120 Theater processor, MC206 6-channel amplifier; MR74 AM/FM Tuner, Oppo UDP-203 4K Blu-ray player, JVC HM-DH40000U D-Theater Digital VHS, Phase Technology PC80 Towers (now used as stands), (2) JBL 4401's, (1) JBL Studio 6IW speaker, (2) JBL Studio 6IC speakers, Sony XBR-49X900E UHD TV, Panamax 1000 Line Conditioner, (2) JL Audio E110 Subwoofers, Wireworld Solstice speaker cables, Wireworld Aurora Power cords, Wireworld Equinox and Solstice speaker cables and various other flavors of Wireworld and Audioquest cabling Office System: Marantz 150 Tuner, Crown DL 2, Crown EQ 2, Crown SA 2, Crown D-75A (as headphone amp), McIntosh MCD7009 (as transport), DBX 3BX Series II, Oppo BDP-103 Blu-ray player, JBL 4401's, JL Audio E112 Subwoofer, Samsung 5500 series 32" Smart TV, Wire World Oasis audio interconnects, Wire World Solstice speaker cables, Wyred for Sound DAC-2 DSDse Digital to Analog converter, Wireworld Starlight Coaxial Digital Interconnect, Sennheiser HD800 Headphones, Sennheiser HDVA600 Headphone amp, Wireworld Silver Eclipse Balanced Interconnects, Wireworld Platinum Starlight USB Cable, Add-Powr EAU-2 AC Harmonic resonator High Resolution Source: HP Omen 17" Gaming Laptop |
#19
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Stillpoints....Audio crack?
Hi Kevin, I would talk to Ivan. While I am pretty sure the P12 falls within the weight range of the Minis, if it is anything like the P5 in weight you might want to think about going with the Ultras. I can’t say they wouldn’t be as good but to my eye, and I have both Minis and Ultra SS here, it has never occurred to me to switch out the SS for the Minis. I would be very curious to hear what Ivan says. No science behind my comment except that the PS seems to weigh what some floorstander speakers do and I wouldn’t think of using minis under a floorstanding speaker. On the other hand I have the minis under my Halo May KTE dac and it is over 40 lbs so maybe…
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Office/Music Room Dynaudio Heritage Special. Uptone Audio EtherRegen Ethernet Switch. Akasa NUC 10i7 with Roon Rock. Bryston BDP-3 Digital Music Player (with 4 Tb Internal SSD and Synology DS920+ NAS)-->Holo Audio May Kitsune Edition DAC-->Shunyata Sigma USB—>Gryphon Diablo 120 Integreted Amp w Transpatent XL PC. Oppo BDP-105D and BDP-203. Power: Shunyata Hydra Sigma S12 PD. Additional Cabling: WW Silver Electra PC, WW Electra PC, Shunyata Venom 3 PC. Digital: WW Starlight Ethernet, WW Gold Starlight AES-EBU, WW Platinum Starlight USB. IC and Speaker: WW Eclipse 8. Bedroom System Ipad with MusicStreamer App-->Schiit Jotunheim DAC/Amp—>Audeze LCD-XC, Focal for Bentley Radiance HO, Massdrop E-MU Teak HP. AK SE 200 DAP. Mobile Survival Kit Astell & Kern SP1000M. Noble Kaiser Encore IEM with Double Helix Balanced cable, Westone W80 IEM w ALOaudio Ref 8 cable, Westone W60 IEM, Shure se535 Ltd with Westone Bluetooth Wireless cable-amp. Mark Levinson No. 5909 Wireless HP. |
#20
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Pete No. 35 Main System: VPI Prime Signature TT in Rosewood, Ortofon Cadenza Black, Stillpoints LP1 V2, McIntosh: MP100, MR78, MCD1000 Transport on Stillpoint Ultra Minis, MDA1000 D/A Converter on Stillpoint Ultra Minis, MS750 Music Server, C40, MC501's (3), Soundcraftsmen: DC2215 Eq/AS1000 Real time analyzer, DBX 3BX II, Carver C9, Nakamichi Dragon, Crown SX724, Crown D-75A (as headphone amp), Sony XBR55X900E 4K TV, JBL L220A's, JBL B460, Sumo Delilah active crossover, WireWorld Silver Eclipse audio interconnects, WireWorld Starlight and Silver Starlight Coaxial Digital interconnects, Wireworld SuperNova 7 Toslink digital interconnect, WireWorld Aurora 7 and Silver Electra Power cords, Wireworld Silver Eclipse 8 speaker cables, Terk AF-1 Powered Antenna, Oppo UDP-205 4K Blu-Ray Player, Bryson BUC-1 USB Converter, Wireworld Gold Starlight XLR Digital interconnect, PS Audio Direct Stream Power Plant 12 on Stillpoint Ultra Minis, PS Audio Dectect, FuruTech Flux-50 NCF Inline Power Filter, Add-Powr Wizard EM Field AC Line conditioner; Stillpoint Ultra SS's under (3) McIntosh MC501 Amplifiers Florida Room/Art Studio System: Harmon Kardon T60 TT/Ortofon 2M Black, McIntosh: MR77, C32, MC2205; Crown Power Line Four, Wyred for Sound DAC-2 Digital to Analog converter, Soundcraftsmen AE2000 Eq, JBL 4313B's, JBL 2241-based Sub, JBL BX63A Active Crossover, Oppo BDP-105D Blu-Ray Player, Samsung 5500 Series 32" Smart TV, Terk AF-1 Powered Antenna Master Bedroom System: McIntosh: MX120 Theater processor, MC206 6-channel amplifier; MR74 AM/FM Tuner, Oppo UDP-203 4K Blu-ray player, JVC HM-DH40000U D-Theater Digital VHS, Phase Technology PC80 Towers (now used as stands), (2) JBL 4401's, (1) JBL Studio 6IW speaker, (2) JBL Studio 6IC speakers, Sony XBR-49X900E UHD TV, Panamax 1000 Line Conditioner, (2) JL Audio E110 Subwoofers, Wireworld Solstice speaker cables, Wireworld Aurora Power cords, Wireworld Equinox and Solstice speaker cables and various other flavors of Wireworld and Audioquest cabling Office System: Marantz 150 Tuner, Crown DL 2, Crown EQ 2, Crown SA 2, Crown D-75A (as headphone amp), McIntosh MCD7009 (as transport), DBX 3BX Series II, Oppo BDP-103 Blu-ray player, JBL 4401's, JL Audio E112 Subwoofer, Samsung 5500 series 32" Smart TV, Wire World Oasis audio interconnects, Wire World Solstice speaker cables, Wyred for Sound DAC-2 DSDse Digital to Analog converter, Wireworld Starlight Coaxial Digital Interconnect, Sennheiser HD800 Headphones, Sennheiser HDVA600 Headphone amp, Wireworld Silver Eclipse Balanced Interconnects, Wireworld Platinum Starlight USB Cable, Add-Powr EAU-2 AC Harmonic resonator High Resolution Source: HP Omen 17" Gaming Laptop |
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