Excellent. That's what I needed to know, as I just wanted to check the application it was intended for. It certainly looks like an impressive beast, with the kind of attention to detail I admire!
Originally Posted by SW1X
I completely agree, as that's precisely what I've found when having some of my own equipment modified. *Every* electronic component imparts its own 'sonic footprint' on proceedings. There is no such thing as a 'truly transparent' anything!
Every passive and active component has a specific sound signature. That sound signature manifests itself to a different extent and is quite audible wherever I would place them in audio system be it a power supply of a hard drive or an amplifier.
That's why the goal with the best designs is to 'keep it simple' (as is possible), and use only as many components in the circuit as is necessary, and what is used is of the highest quality [read as imparts the faintest footprint/least sonic signature] on the music signal. That's what I aim for in my own system whenever anything is built or modified.
That's really interesting you should say that, as I've long considered CD players fitted with those classic Philips mechs to be amongst the best sounding ever produced, although of course there's a lot more to producing a good CDP than simply the transport mechanism used!
I have been fine tuning the sound of PSU I for the last half year in order to preserve maximum amount of dynamics and bass fullness as found in older CD player with CDM1 pick up mechanisms.
However, I agree that players featuring the use of those mechs had a certain 'analogue rightness' about them, which made the sound they produced very musically appealing.
Again, that's most interesting, as my vintage Sony DAC (DAS-R1) is full of Black Gates, after having been modified by Audiocom International, and used throughout the PSU section. The difference that made was incredible! I also agree that BGs have a unique and highly desirable sound signature.
The best results are achieved when the PSU I power supply is fully equipped with Black Gate capacitors. Unfortunately, that is not viable option for a series product as relatively large capacitance reservoir is required (at least of 20,000 uF) and those caps are neither freely available nor are affordable to many.
Ha - a man after my own heart... Experience tells me that over-specifying in that way is always beneficial and liable to pay significant sonic dividends!
The circuit design is pretty elegant minimalist consisting of only 2 diodes and 3 transistors. It is voltage regulated based on series NPN Toshiba (made in Japan) transistor, which is normally used in high end audio, high power transistor amplifiers. Everything is over- specified
- the whole chassis acts as a heat sink. The output impedance is low as it could be for series regulator standards.
It's interesting that's your sonic focus. I know where you're coming from, as the sound they produced is the complete antithesis of the thin, monochromatic din produced by much of what's made now.
Some people will laugh about the pedantism and the attention to details but I take the sound very seriously. Nothing was left to chance as every material and everything counts in audio power supplies. I can assure anybody that the R&D effort proved to be worth every penny as the sound is now pretty much as analogue (I would say more analogue and thicker sounding than the stock versions) of those vintage Philips and Marantz CD players from late 80s
Thanks. I might take you up on that sometime, but not right now. I'm just enjoying what I have at the moment
Do not take my word for it- feel free to try
"A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do". - Milan Kundera.
"Your validity or worth are not defined or determined by the views of others with their own superimposed agendas". - Pharos (on AoS)
Modified Technics SL-1210MK5G/Mike New high-precision bearing & baseplate/Mike New ETP platter/Bruil record weight/Nagaoka GL602 crystal T/T mat. Paul Hynes SR7EHD PSU (plus regulator modules)/DCSXL pure-silver DC lead. Ortofon RS-212D tonearm/'Speedy Steve' custom-made Ebony armboard. Yannis Tome 423.5 Phono Silver-Litz tonearm cable, with Furutech CF-DIN(R) and Eichmann silver Bullet Plugs. Cartridges: Denon DL-S1 in AT MG-10 headshell with AT-6106 Quattro Hybrid lead-wire. Denon DL-103C1 in '103U' headshell with AT-609 silver lead-wire. Vintage Denon DL-103AU in AT-Ti15ANV Titanium Headshell. Shure M55E in Denon PCL-300 headshell with 6N silver lead-wire. Shure original USA SC35C. Audiocom-modified Sony X-777ES/DAS-R1 transport/DAC. Raspberry Pi-3 Model B and IQaudio Pi-DAC+/Paul Hynes SR3DR-05 linear PSU/Williams Audio NAS linear PSU. Heavily-modified Croft Charisma-X preamp. Modified Goldpoint SA4M-47 passive preamp. Stereo Coffee LDR. Head-amp: Paul Hynes design/SR5 PSU. Also modified Lentek. Tube Distinctions 50W Class A P/P Copper amp with cryo-treated Tung Sol KT150s. Speakers: 'Lockwood Majors', using 15" Tannoy Monitor Golds, modified with bespoke crossovers. Also Celestion Ditton 15XRs. Stands: Mana Acoustics (non-magnetic stainless steel 'clones’). Hi-Fi Racks Podium T/T wall shelf. Sony ST-5055L tuner. Cables: Furukawa EE/F-S 2mm & 2.6mm solid-core mains leads, fitted with Furutech FI-50 IECs and FI-1363Rs. Stereo interconnects: Sommer Carbokab 225 (with silver-plated MS Audio non-metallic POM RCAs). Speaker cable: VDH 'The Wind' Hybrid II. Digital coaxial cable: 1m Trompeter Electronics Triax TRC-75-2, with MS Audio ‘Starline' silver-plated RCAs. Mains block: Mark Grant 6-way, modded with Furutech FP-1363R sockets and Furukawa cable. Tube Distinctions digital noise filter. VPI HW 16.5 record cleaner.