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#81
06-06-2011, 09:49 PM
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Thanks guys. I leave Multiwave engaged as well. Just did a Clean Wave. The listening continues....
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HAROLD... Pioneer Elite 7.1 Rcvr, (2)MC402 Power Amps, MC58 Multi Channel Amp, Vienna Beethovens and Oratorio Center, Boston Surrounds, (3)Outlaw Subs,(2)PS Audio PPP, Panasonic LCD Proj, Oppo Blu-ray, AppleTV, WireWorld Silver Electra Power Cords. 
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#82
08-07-2011, 12:47 PM
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Switched Power Supply and PPP
Hi all,
I am a newbie at AudioAficionado.org and have become an eager reader of the comprehensive PS Audio thread. I noticed that this forum is one of the most substantial sources of information in the web concerning PS Audio's PPP. Thank you for various contributions! I have been a confident user of the PPP (European version, 230 V) since January 2010. It is the piece of equipment which has been convincing from the very first note of music playing - the buying incentive was initiated immediately.  I feed all my gear via PPP. However, I have started to use a Mac Mini as a source for uncompressed music - transmitting the digital data via Halide Bridge into my Accuphase DP-67 (used as a DAC). Why I am telling this? Since the Mac Mini (with its integrated switching power supply!) came in, I realized a severe degradation of sound quality with noticeable distortion which translates into sinewy, harsh heights. If I bypass the PPP and use a separate wall receptacle for the Mac Mini in the same room the harshness is almost gone but also the major sonic improvements of the PPP. One approach was to reduce the output voltage. At my place, the PPP had to add 7-8 Volts at an average. After reducing the output voltage, the PPP does not reach 230 Volts anymore but has only 1-3 Volts to add. I imagine that this has lowered the audible distortion a bit whiteout removing the cause in principle. Has anyone of you made some similar experiences as switching power supplies become more and more common also in high end audio equipment? Are there any means to avoid this audible distortion (e.g. shielded cabling, insulation or the like)? I was wondering if issues like this might be also one reason for PS Audio to come up with two news models - being closer to the former power plants and moving away from switching power supplies - as far as I understand the technical concept… I am thankful for any advice!!! Best regards Michael -- My system consists mainly of: Verity Audio Parsifal Encore speakers, Octave HP 500 SE hybrid pre amp, Gamut D-100 solid state power amp, Accuphase DP-67 CD-player, Restek Scalar tuner, Stax SRS 4040 earphones, Transparent interconnects and speaker cables and Eupen / Lapp power cables.
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#83
08-07-2011, 12:55 PM
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Laubsauger.......Michael, welcome to Audio Aficionado.
__________________
Dan  STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A
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#84
08-11-2011, 04:19 PM
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Thank you Dan - I really appreciate having contact to other Audio Aficionados!
Michael
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#86
08-11-2011, 11:23 PM
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Laubsauger... Welcome!
__________________
Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES
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#88
08-12-2011, 08:29 AM
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Welcome Laubsauger
I am a bit confused on you post. How do you reduce the output voltage on the PPP? The unit does this automatically. I understand we can adjust the "readout" of the PPP to match both the incoming (wall) and outgoing (backpanel) values, but I was not aware we could change what the PPP is doing. Is is possible for you to run a separate line from your panel to the room for the mac-mini to plug into. You could them try put an inexpensive filter between the mini and the wall. Just a suggestion. Jim
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#89
08-12-2011, 10:31 AM
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Welcome Laubsauger!
__________________
HAROLD... Pioneer Elite 7.1 Rcvr, (2)MC402 Power Amps, MC58 Multi Channel Amp, Vienna Beethovens and Oratorio Center, Boston Surrounds, (3)Outlaw Subs,(2)PS Audio PPP, Panasonic LCD Proj, Oppo Blu-ray, AppleTV, WireWorld Silver Electra Power Cords.
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#90
08-12-2011, 10:47 AM
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Quote:
With all four of my PPP's, that was the first adjustment I made ti ensure the output voltage was a true 120 volts. Then I measured the wall receptacle voltage, and using the display calibration procedure I adjusted the display to be accurate with the wall voltage. Finally, I adjusted the display output voltage reading to reflect the true 120 volt output of the PPP. What I have noticed with the PPP's is the output voltage remains a very stable 120 volts, but the display will occasionally display one volt above the PPP's output. I attribute this to temperature instability in the IC that generates the front panel display reading. 
__________________
Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A Last edited by jdandy; 08-12-2011 at 10:56 AM.
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