Linear power supplies

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Comments

  • Dr_Wu
    Dr_Wu Posts: 335
    edited September 2020
    I've been very happy with TeraDak LPS. Using one with an Auralic Mini, and another with a ProJect DAC. Upgraded power cables on both. And, both connected to PS Audio regenerator. Very affordable, great customer service from kamkam on ebay, and if @DarqueKnight uses them that's good enough for me.

    As an aside, I tried a split leg USB cable from my computer to the DAC for streaming. After establishing the computer/DAC connection, you can disconnect the power leg to eliminate that source of noise. The Mini/TeraDak combination blows that away. But, also, the streaming services randomly sync to your endpoint, and during that process divert the digital stream to your hard drive for uninterrupted listening. After syncing, it attempts to re-establish streaming through the full power/signal connection between the computer and DAC. Because the power leg has been disconnected, this fails and the service drops out. It's an annoyance to have to re-connect and re-establish the stream, then disconnect the power leg again. And, there may be another sync on the way, so rinse/repeat. Dedicated streamer eliminates all of this, and sounds better, to boot.

    Post edited by Dr_Wu on
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  • Gardenstater
    Gardenstater Posts: 4,462
    edited September 2020
    I have one of these old Radio Shack Power Supplies, 13.8V, 2.5A. The thought has crossed my mind to modify it internally with a simple adjustable op amp voltage regulator to make the output 5V, perhaps with a switch on the front to swap between the two. It would be interesting to see how this compares with the typical wall wart switching mode ps that comes with most audio equipment. I might try it with the Squeezebox Touch to see if there is any improvement. Ah jeez I just created another project for myself :)

    https://www.ebay.com/itm/Vintage-Radio-Shack-Micronta-Regulated-12-Volt-Power-Supply-Cat-No-22-124A/353171444260?epid=729769670&hash=item523aa89224:g:ZHUAAOSwXmRfN~TM
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
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  • machone
    machone Posts: 1,510
    There is NO doubt in my mind that a good linear power supply will improve SQ.

    I use a Mojo-Audio Illuminati V3 (with dual outputs) to power both my 12vdc music server and 5vdc RPi player.

    I find the results outstanding and it's not going anywhere.
    Mojo Audio Illuminati v3>>Quantum Byte w/LMS>>Rpi/PiCoreplayer>> Starlight 7 USB >> Mojo Audio Mystique v2 SE>>ModWright SWL 9.0 SE Signature>>Hafler DH-500 Amp+ (Musical Concepts Fully Modded)>>
    SRS 2.3TL (Fully Modded)...Velodyne Optimum 8 subwoofer
    1KVA Dreadnought

    Marantz SA 8005
    Pioneer PLX-1000 Turntable - Shure SC35C/N35X - V15III/VN35HE
    Yamaha TX-540 Tuner...Sony BDP-S570
    Sony PS4

    Separate subpanel with four dedicated 20 amp circuits.
    1. Amplification 2. Analog 3. Digital 4. Video

    "All THAT IS LOST FROM THE SOURCE IS LOST FOREVER"
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  • machone
    machone Posts: 1,510
    V3 Internals
    659br5uoij56.jpg
    Mojo Audio Illuminati v3>>Quantum Byte w/LMS>>Rpi/PiCoreplayer>> Starlight 7 USB >> Mojo Audio Mystique v2 SE>>ModWright SWL 9.0 SE Signature>>Hafler DH-500 Amp+ (Musical Concepts Fully Modded)>>
    SRS 2.3TL (Fully Modded)...Velodyne Optimum 8 subwoofer
    1KVA Dreadnought

    Marantz SA 8005
    Pioneer PLX-1000 Turntable - Shure SC35C/N35X - V15III/VN35HE
    Yamaha TX-540 Tuner...Sony BDP-S570
    Sony PS4

    Separate subpanel with four dedicated 20 amp circuits.
    1. Amplification 2. Analog 3. Digital 4. Video

    "All THAT IS LOST FROM THE SOURCE IS LOST FOREVER"
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  • Mikey081057
    Mikey081057 Posts: 7,127
    I have a TeraDak dual 12V / 6.5A Audiophile Hifi DC-200W Linear Power Supply powering my DAC ... It is beefy/heavy and built well...
    My New Year's resolution is 3840 × 2160

    Family Room| Marantz AV7704| Usher Dancer Mini - 2 DMD Mains |Usher Dancer Mini-x DMD's Surrounds | Usher BE-616 DMD Center | SVS Ultra Rear Surrounds | Parasound Halo A21 | Parsound Halo A52+ | MIT Shotgun S3's | Dual SVS SB 4000 Ultras | Oppo UDP 203 | Directv Genie HD DVR | Samsung 75" Q8 QLED | PSAudio Stellar GCD | Mytek Brooklyn DAC+ | Lumin U1 Mini | HP Elite Slice PC | ROON'd for life |

    ManCave: HT:Polk LSiM 706VR3 LSiM 703's LSiM 702's|| Marantz AV7002 AV PrePro Sunfire TGA-7401| Sony PS4 Pro| Sony PS4 Pro|SVS PB13 Ultra| Oppo UDP 203 | Music Hall MMF 5.3se TT w/ Soundsmith Carmen | Samsung 55" SUHD TV | Sony PS4

    Patio | Polk Atrium 8's | Yamaha R-N303BL |

    Office BlueSound Node| KEF LS50 | Peactree Nova 125SE |

    Bedroom | Focal 905's | Chromecast Audio |

    Garage | Polk Monitor 5B's

    Closet Yamaha M80 | 2 Polk MP3K subs| Yaqin MC100B with Shuguang Treasures KT 88's & CV181Z's | Tesla E83CC's | Marantz 2252B | Marantz 2385 |Polk SDA SRS 2.3 | LSiM 705's |
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  • Clipdat
    Clipdat Posts: 12,934
    Thanks for all the replies, I appreciate it. I will be ordering their linear PSU if/when I make an order for the mixer.
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