2 mega dacs for sale - Cullen modded PS Audio & Jolida Mk2 spruced

[Open Door]

2 mega dacs for sale - Cullen modded PS Audio & Jolida Mk2 spruced

Each at £590 incl U.K. post - take your pick

1) Jolida Mk2 with sweet upgrades - sounds great!
Mods:
•Output RCA’s silver plated
•Output caps straight to output RCA’s bypassing board traces and joints
•Output caps now Mundorf Supreme
•Fuse an AMR Gold
•Acousti Feet (firm)
•Output tube Raytheon CK5755 and adapters for use as a 12AX7
•High voltage power supply caps upgraded to Nichicon and Panasonic. DC block now a Mundorf Evo in Oil.
•Low voltage power supply caps to Nichicon and Audio note - bypass caps upgraded to Wima types
•Resistors on power supply board upgraded to Kiwane and higher wattage
•Big upgrade in that the 12V and 5V voltage regulators are now NewClassD Mk2 types

No original box or manual but will be well packed.

2) PS Audio Digital Link with Cullen Stage IV Signature Mods

In addition to the Cullen mods, this dac has these extra upgrades:
•Power supply capacitors bypassed with Vishay film caps
•Audio Magic Black Out Paint applied to some internal chips and capacitors
•Fuse now a HiFi Tuning Hold Classic
•Some chassis damping
•Feet now Acousti Feet Soft
•3x voltage regulators upgraded. Both the 15v and -15v are NewClassD Mk1 types, and the 9v is a NewClassD Mk2. This was a big sonic upgrade to an already superb dac.

Cullen Circuit mods:
•The biggie upgrade is the clock modification board that replaces two stock clocks with a Cullen designed clock for ultra low hitter. Both to the clock and CODEC.
•28 signal path resistors upgraded to Dale Rn55d copper leaded types
•11 electrolytic capacitors upgrades to Nichicon Muse types
•8 FET’s in the output (no caps in signal output) to hand matched low noise parts.
•3x RCA sockets upgrades to WBT NexGen 210 types - nice!
•ERS Suppression cloth added (a little in key area)

[Firebottle]

Are the NewClassD regs linear? (Bit of a saft name for linear regs IMO)

What D/A chip is used in the PS Audio?

[Open Door]

I did not swap out the LM317 in the PS, only the 78XX’s and 79XX. Jolida is 78XX.

Details on the Mk1 in the link at HiFi Collective and the Mk2 at NewClassD’s website.

Chip is Burr Brown 1798.

https://www.newclassd.com/index.php?page=257&hv=1

https://www.hificollective.co.uk/com...lassd_reg.html

[Open Door]

No more ��

[Kneesup]

Over the years that Open Door has been selling his wonderful upgraded DACs, has anyone ever been disappointed...? I’ve had a few of them over the years. Capacitor swopping as Rob made ever better discoveries and learning with him what a huge difference deft and sensitive component changes can make. 6 months ago I finally found something better than my latest DAC from Rob. But it cost 6 times as much. And it wasn’t so very different. I could easily have gone back. So... buy with total confidence. Robert has exceptional ears and skills. Moreover, he’s a thoroughly good bloke.

[hifinutt]

still got 2 of them and they are not going anywhere yet