Increase Performance of your Diablo as you step up from the Toroidal Supply to the ‘Never Connected’ PSU
There are two options available to power the Diablo – the Toroidal AC supply and the ‘Never Connected PSU’ DC supply.
As you go up from the AC supply to the ‘Never Connected’ you benefit by a major increase in audio performance.
Both power supplies are in separate boxes to keep noise and hum levels as far away as possible from the sensitive audio circuits and are available in the following options:
- 230V operation with UK or European mains plug
- 115V operation with USA style mains plug
Toroidal AC Power Supply
The Toroidal Power Supply option is provided as a low cost introduction.
Performance level will be more than adequate for many users, but you can upgrade at any time to the ‘Never Connected’ PSU.
The ABS molded housing of the Toroidal power supply contains an in-line low noise 40VA transformer. AC current is fed to the Dino where it is rectified to DC and regulated with two high performance, wide bandwidth Super Regulators.
The Ultimate Power supply for the Diablo – the NCPSU
The NCPSU (Never Connected Power Supply Unit) has completely different electronics to any conventional dc power supply. Instead of an over sized toroidal transformer, there is a PCB mounting variety followed by the revolutionary noise reduction circuitry that is called ‘Never Connected’.
Although the regulation circuit is physically connected to the incoming mains, it is disconnected electronically. A monitoring circuit detects the portion of the sine wave that is charging the first of a pair of electrolytic capacitors. Once this first capacitor is fully charged, the diode bridge rectifier turns off and a MOSFET switching circuit transfers the charge from the first cap to the second. This cycle is repeated continuously.
At no point in time is the regulation circuitry electrically connected to the incoming rectified mains – hence the term ‘Never Connected’. The overall result is a large and measurable reduction in mains borne noise.
This dramatic reduction of mains borne noise enables the Diablo phono circuit to give of its very best.