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Duke40

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  1. Item: Vinnie Rossi UltraCapacitor Power Supply Pure-DC-4EVR ; 19V (220V Input) Location: Australia Price: $AUD 1000 Item Condition: Excellent Reason for selling: Surplus Payment Method: Paypal Extra Info: 19V at 2.5A continuous output current (max), 5A transient current delivery (< 1 sec.) 220V to 240V Input. Condition is excellent. Vinnie Rossi DC to banana plug cable will be included, (120cm length), the DC cable has the centre pin as positive + , 5.5mm / 2.5mm barrel plug. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Below is extract of benefits and specifications from the manual ... MINI PURE-DC-4EVR (“MINI”) is the world’s first patent-pending, isolated ultracapacitor power supply with super-regulated DC output voltage. Your MINI replaces the stock “wall-wort” AC-DC power adapters that are commonly used to feed products that take a DC input voltage. [For example: the Sonore microRendu and other small computer modules, USB cards, dacs, preamps, headphone amplifiers, and even small amplifiers and other products &amp; DIY projects requiring fairly low DC voltage(s)] MINI provides isolated, pure DC power with very low output impedance, high bandwidth and excellent transient response characteristics. Just like with our revolutionary LIO modular audio platform, our patent-pending PURE-DC-4EVR circuitry utilized two banks of ultracapacitors. While one bank of ultracapacitors is feeding isolated DC current to the linear super-regulated output, the other bank is charging. The bank feeding the output is NEVER connected to the charging ultracapacitor bank and is 100% isolated from the AC mains at all times. This revolutionary design by Vinnie Rossi provides dramatic performance and durability advantages over every other power supply technology available - whether it is AC (linear or SMPS) or battery power! Each MINI PURE-DC-4EVR is hand-built and factory configured to meet your specific input and output voltage requirements. It also includes a built-in linear regulated charging circuit for the ultracapacitor banks. MINI PRODUCT FEATURES Output voltage is set at the factory to any value from 3.3Vdc to 12Vdc * 2.5A continuous output current (max) / 5A transient current delivery (&lt; 1 sec.) Custom Belleson “SPVR-X” (Super Power, Vinnie Rossi, X = adjustable setting) ‘super-regulated’ output, featuring patented state-of-the-art regulator technology (&lt; 5uV RMS output noise voltage). Built-in linear-regulated charging circuit (no SMPS or DC-DC converter circuits used anywhere) Totally silent switching (SS) of the ultracapacitor banks Fully isolated output voltage to feed your product Red illuminated push-button ON/OFF switch on front panel Banana/Spade/bare wire type output terminals (Red = positive [+], Black = Negative [-] ) Fused IEC power input jack. Internal fused output feed to the SPVR-X regulator. Black aluminum enclosure with power switch on the front panel * Output voltage can be later changed (within the 3.3V to 12Vdc range) with a free factory upgrade to original customers (requires a firmware update and minor hardware change). For second-hand owners, we will still offer this for a service fee. Size: Approx. 6” wide x 7” deep x 3.5” tall Approx. 8 lbs.
  2. Item: Vinnie Rossi UltraCapacitor Power Supply Pure-DC-4EVR ; 12V (220V Input) Location: Australia Price: $AUD 900 Item Condition: Excellent Reason for selling: Surplus Payment Method: Paypal Extra Info: 12V at 2.5A continuous output current (max), 5A transient current delivery (< 1 sec.) 220V to 240V Input. Condition is excellent. Vinnie Rossi DC to banana plug cable will be included, (90cm length), the DC cable has the centre pin as positive + , 5.5mm / 2.5mm barrel plug. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Below is extract of benefits and specifications from the manual ... MINI PURE-DC-4EVR (“MINI”) is the world’s first patent-pending, isolated ultracapacitor power supply with super-regulated DC output voltage. Your MINI replaces the stock “wall-wort” AC-DC power adapters that are commonly used to feed products that take a DC input voltage. [For example: the Sonore microRendu and other small computer modules, USB cards, dacs, preamps, headphone amplifiers, and even small amplifiers and other products &amp; DIY projects requiring fairly low DC voltage(s)] MINI provides isolated, pure DC power with very low output impedance, high bandwidth and excellent transient response characteristics. Just like with our revolutionary LIO modular audio platform, our patent-pending PURE-DC-4EVR circuitry utilized two banks of ultracapacitors. While one bank of ultracapacitors is feeding isolated DC current to the linear super-regulated output, the other bank is charging. The bank feeding the output is NEVER connected to the charging ultracapacitor bank and is 100% isolated from the AC mains at all times. This revolutionary design by Vinnie Rossi provides dramatic performance and durability advantages over every other power supply technology available - whether it is AC (linear or SMPS) or battery power! Each MINI PURE-DC-4EVR is hand-built and factory configured to meet your specific input and output voltage requirements. It also includes a built-in linear regulated charging circuit for the ultracapacitor banks. MINI PRODUCT FEATURES Output voltage is set at the factory to any value from 3.3Vdc to 12Vdc * 2.5A continuous output current (max) / 5A transient current delivery (&lt; 1 sec.) Custom Belleson “SPVR-X” (Super Power, Vinnie Rossi, X = adjustable setting) ‘super-regulated’ output, featuring patented state-of-the-art regulator technology (&lt; 5uV RMS output noise voltage). Built-in linear-regulated charging circuit (no SMPS or DC-DC converter circuits used anywhere) Totally silent switching (SS) of the ultracapacitor banks Fully isolated output voltage to feed your product Red illuminated push-button ON/OFF switch on front panel Banana/Spade/bare wire type output terminals (Red = positive [+], Black = Negative [-] ) Fused IEC power input jack. Internal fused output feed to the SPVR-X regulator. Black aluminum enclosure with power switch on the front panel * Output voltage can be later changed (within the 3.3V to 12Vdc range) with a free factory upgrade to original customers (requires a firmware update and minor hardware change). For second-hand owners, we will still offer this for a service fee. Size: Approx. 6” wide x 7” deep x 3.5” tall Approx. 8 lbs.
  3. It is mentioned earlier in the RMAF Reader Reports thread ... just quoted the relevant Brooklyn DAC+ info from the post below.
  4. Brookyn DAC+ becomes available on the 16th, so it is about a week away. May be worthwhile waiting and then compare the Brookyn with this new + version. just a thought
  5. Tom, i have not received a note from iFi yet (still curious about the iDSD black label, but losing a bit of interest in the tour solely due to work commitments ... Sydney has a Hi-Fi show in 2 weeks, maybe i could find one at the show for a quick demo).
  6. AMR/iFI Audio ... any updates available for this tour ? thanks
  7. Oppo bdp-103 bluray player has Tidal app, i own this and tested playing Tidal, it works. a less expensive and higher quality option for just music would be the Auralic Aries Mini. It has a dac inside and you could output to your pre-amp using RCA cables. I own the Auralic Aries which is the next model up. Aries can be used via wifi or ethernet connection to your router. You can use a iphone or ipad to control the Aries software which is called lightning ds ... you can use Tidal from within this lightning ds software. Amazingly just using airplay to stream Tidal from my iPhone to the Aries sounds excellent, no resampling from 44 to 48 khz is done. Can be a bit fiddly to setup, though this has improved as it has an automatic setup routine now. For FM reception i think you will need a seperate tuner
  8. Yes, my experience includes using IT's, Balanced Power supplies (up to 3000W), LPS (HDPlex 100W and Zerozone el cheapo's from eBay), Supercapacitor supplies (VR MINI, 12V and 19V), power regeneration (PS Audio P300), DIY AC and DC cables ... and I'm still learning / experimenting . The best improvements/tweaks I have experienced, have been upgrading power quality to my HiFi, then vibration/resonance control tweaks. For tweaking in other areas ... I also think that the original REGEN was superb for the money, so the ISO REGEN and LPS-1 will likely be next thing for me. TL;DR This has been a very interesting thread to follow, so I'm learning things from people like you, Mozes, Austinpop. Thank you. Yes, DC noise choosing different paths feels a bit "herding cats" sometimes.
  9. Your welcome Rajiv. Yes, IT+HDPlex 100W is a great combo. Of the the three devices listed below, I would rank them with (1) being most important; (1) IT (2) iFi DC iPurifier (3) HDPlex The IT is essential. iFi DC iPurifier was ranked 2nd because it is great bang for buck. So, another option, is IT+SMPS + iFi DC iPurifier or IT+ iFi Power.
  10. Yes, it is an excellent site, reading it now. Have been interested in optimising power to my HiFi for just over 10 years and I'm still learning things. I think I really needed that DC Blocker Trap filter back when I owned a PS Audio P300, that thing used to hum like a banshee. I always wondered if it was DC causing this, or the wide AC voltage swings that I experienced at the time (not disrespecting PS Audio products, they make quality products and there P10 does interests me, there was just a lot of construction happening nearby when I owned the P300, the voltage swings were very ... wild, extreme). At least the DC Blocker could have ruled out DC being the problem or if it was the wild voltage swings. Thanks again for the link, will keep it in mind.
  11. @Cornan Thank you, I will have a read now of those links. My IT's used to be a bit susceptible to hum sometimes, I think this is due to DC riding onto the AC input. Was considering a DC blocker, but the hum problem disappeared with the reducing of SMPS in the room.
  12. TL:DR I'm not sure if it is floating secondary or grounded secondary, though I do wish I knew. I was curious and did have a quick peel under the lid (lifted the lid a few cm), though saw all these different size capacitors, one the size of a small can of Coke (200ml), and thought, mmm, there's probably stored energy in there to zap me seriously, or even something more final. Not going enjoy music if I am no longer breathing, that is, I decided to be sensible and so, left well enough alone. 10 years ago I got a couple of these (along with some high wattage Balanced Power Supplies) from HiFi store, they are no longer manufactured, called DBA RC-300, all I know about them is below; "These units isolate, regulate and reshape the mains via a choke-capacitor circuit. The RC-300 boasts a 3% variation at the output at rated power for a 15% variation on the mains input. When under loaded the regulation is better still and the sonic improvements are remarkable. The RC unit also offers considerable protection from large spikes and brown outs. A fused IEC power inlet is provided and six high quality surface mounted power outlets. RRP AU$1500. Weight : 25 Kg Specifications : Input 240VAC +/- 15 % = 240 VAC out +/- 3% . 300 Watt capable of withstanding 150% overload and still maintain output voltage.. High CMRR, response time immediately to slow changes and 30mS to abrupt changes. Harmonic distortion <3% @ full load."
  13. I too had a similar experience with experimenting with powering modem, I also went crazy and tried my 12V VR MINI on my modem and it improved my Tidal streaming. Ranking options from best (1) to worst (6) for powering my ISP supplied modem ; (1) VR MINI (2) Isolation Transformer > 100W HD-Plex > iFi DC iPurifier (3) Isolation Transformer > Modem's SMPS > iFi DC iPurifier (4) Isolation Transformer > 100W HD-Plex > (5) Isolation Transformer > Modem's SMPS (6) Modem's SMPS (1) is clearly the best, option (2) is a close 2nd and is what I am currently doing (though I am thinking of getting a VR MINI for this purpose, maybe later in the year). Both of these provided a significant improvement, that is I did not have to do much critical listening to determine improvements. Then a continuous decrease in SQ , as I made my way down the list above. Later I got a combined Modem/Router, D-Link Taipan. Repeated the options (1) to (6) in the experiments above ... same results. Just wish my Modem/Router only needed 7V (instead of 12V) and less current , a LPS-1 would be a great low cost tweak to get some isolated super capacitor power. The VR MINI is more than double the cost, and requires a bit more consideration before going that path for powering the modem, I'll probably do it, though a ISO-Regen & LPS-1 will likely be my next experiment later in June. TL;DR I'm very impressed by both companies, UpTone Audio and Vinnie Rossi. John
  14. Chris, is it possible to increase the size of the green dot (or star, if you have commented in a thread) , make it larger ? Or even move it to the right hand side of someones avatar ? (When viewing CA on a mobile device). Like to click on this to get to the last unread message, maybe it's just me, but I sometimes miss clicking correctly as it is a bit small (specifically when using mobile devices), end up either clicking the avatar (above the dot) or users name (under the dot). I wonder if it is just me or if others also are having trouble. Your thoughts ?
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