So when it comes to fighting of the competition how does its fair? Well at 800 pounds sterling there is little or nothing to touch it at the price, but spend £300 - £400 more and it starts to get a bit out of its depths. In a recent magazine review it came second place in a £1000 CD super test.

Despite its superb engineering and sophistication it is not all things to all men, accused of sounding possibly boring, the 840C never quite manages to stir enough excitement and can sound lacklustre, softly defined, and vague around the edges. While the bass quantity is aplenty it is at times ponderous, even bloated.

With such technology, there are masses of untapped sound to be had from the 840C’s clever circuits. Rid the player of its dozens of general purpose capacitors, replace the stock oscillator with an ultra-low jitter clock partnered with a dedicated power supply and revamp the analogue filter & line stage and the player catapults forward in sound and slipstreams way ahead of the competition.

Audiocom have the recipe to transform the 840C into a stunning CD spinner. We have 2 levels of modifications, the level-1 upgrades installs 21 new components including the Superclock 4-S ultra-low jitter clock, & the superb AD825 op-amps on Brown Dog adapters for the line buffer stage. The comprehensive level-2 upgrade installs 67 new components that include Sanyo OS-CON & Rubycon ZA capacitors for various digital de-coupling stages, and additional AD825 op-amps on Brown Dog adapters for the analogue filter stage.

Cambridge Audio AZUR 840C Level-1 Upgrades.

1x Superclock 4-S Ultra-low jitter master clock
1x Panasonic FC power supply reservoir capacitor.
4x IR Schottky diodes for digital PCB servo power supply.
2x Rubycon ZL regulator bypass capacitors.
7x Rubycon ZA analogue regulator bypass capacitors.
4x Sanyo OS-CON analogue regulator bypass capacitors.
2x AD825 op-amp modules to replace OPA2134 for line buffer stage.
WBT 4% Silver solder used throughout.

Cambridge Audio AZUR 840C Level-2 Upgrades.

1x Superclock 4-S Ultra-low jitter master clock
1x Panasonic FC power supply reservoir capacitor.
4x IR Schottky diodes for digital PCB servo power supply.
2x Rubycon ZL regulator bypass capacitors.
7x Rubycon ZA analogue regulator bypass capacitors.
4x Sanyo OS-CON analogue regulator bypass capacitors.
2x AD825 op-amp modules to replace OPA2134 for line buffer stage.
8 x Sanyo OS-CON capacitors for upgrading digital processing.
6x Rubycon ZA/ZL capacitors for upgrading digital processing.
8x IR Schottky diodes for Upsampling /DAC PCB digital power supply.
10x Rubycon ZA digital regulator bypass capacitors.
6x Sanyo OS-CON digital regulator bypass capacitors.
6x Sanyo OS-CON digital de-coupling capacitors.
2x AD825 op-amp modules to replace OPA2134 for filter stage.
WBT 4% Silver solder used throughout.

This modification has been discontinued.