Bare undrer; noen forsterkere brummer og suser, mens andre er helt tyste. På samme nett/forutsetninger. Er det slik at noen produsenter har gjort seg bedre flid her? Og f.eks Red Wine audio eliminerte støy helt ved å loope inn batteridrift?
Selv har jeg nå Isotek strømkabel på Månen. Hører ingen forskjell på musikken, og støy har jeg hverken med eller uten. Men MÅ jo bare ha det..
Red Wine er nå Vinnie Rossi. Og bruker annen teknologi.Skriver:
Ultracapacitor Power Supply
LIO’s patent-pending, ultracapacitor power supply (“PURE DC-4-EVR”) isolates audio circuitry from the noise and voltage fluctuations of AC mains power – without the need for an external power conditioner. Music flows from LIO in the most natural way, free of grain and background noise. Its vanishingly low output impedance ensures the highest possible current to deliver stunning transient attack with bass that is extended and impactful, yet tight and well defined. Now featuring our Silent Switching technology!
Learn more >>
http://www.vinnierossi.com/lio-technology/
Pure DC-4-EVR Ultracapacitor Technology
The AC power that comes into your home to power your audio system is prone to voltage fluctuations and to picking up noise from household appliances. Both get in the way of maximum audio performance. Many audiophiles use expensive “power conditioners” to reduce the problems – but not eliminate them entirely. We have a better way.
Both LIO and VR120 feature an all-new, patent-pending power supply design that isolates all audio circuitry from the AC mains power.
“PURE DC-4-EVR” technology employs ultracapacitor banks in place of conventional AC power or batteries. While one bank of ultracapacitors is feeding isolated DC current to the audio circuits, the other bank is charging. The audio circuitry is NEVER connected to the charging ultracapacitor bank and is isolated from the AC mains. This approach provides dramatic performance and durability advantages over every other power supply technology – whether AC or battery powered.
Compared to traditional AC powered components:
LIO / VR120’s audio circuits are isolated from the AC mains.
AC hum and noise is rendered negligible for a “black” background from which the subtlest musical information emerges with clarity.
No need for expensive power conditioners, “audiophile” power cords or dedicated power lines.
High current supply – as there is no AC to DC conversion inside the component, so LIO/VR120 has no transformers or bridge rectifiers that choke instantaneous current and make noise. You will enjoy greater dynamics with tight, precise bass response along with more open and extended treble.
Compared to battery powered components:
Super-fast charging time.
Lifespan rated at 1,000,000 cycles (compare that to 2,000 cycles for the best Lithium battery topologies), so you will never need to replace the ultracapacitors.
Higher current output to run LIO / VR120’s MOSFET power amplifier.
Environmentally friendly – uses no heavy metals and has no disposal issues.
Maintenance free.
Ultra-low internal resistance of < 0.003 ohms per cell – our cleanest, highest-current DC power supply yet!
No memory effects