Many reviews available on line, I've attached, one of them. This is a wonderful dac especially if you have a Mac Mini. There is nothing else included with the dac.$700 plus actual shipping from 55417, approx. 7 lbs. https://darko.audio/2010/11/dblabs-tranquility-usb-dac-signature-edition/ This unit also has the Gold level mod's Silver Level Modifications ($395 introductory price) - - Removal of the entire voltage regulation system.
- Regulation replaced with a specialized much higher current ultra low noise regulator system and six full stages of unique filtration!
- Output stage capacitance and voltages and bias all changed to new settings optimized for the many modifications.
- Stock output capacitors replaced with exotic German capacitor with pure copper leads and interleave internals layout.
- The sonic improvements from the Level 1 modifications yield a better noise floor, better bass delineation and power structure and further refine all soundstaging and harmonic extraction. All of the music detail and inner harmonic structure are improved throughout. The "jump factor" of dynamic capabilities are much more refined. Noise floor is lowered. With the output stage modifications and the exotic German pure copper capacitors give a very nice sense of liquidity to the sound altogether. Think - more refined sound at all levels. Gold Level Modifications ($595 intro price) - - All Silver Level modifications listed above are included (Reg with six stage filtration, output bias re-optimzation and top level German caps).
- Diodes are replaced with a unique diodes new to the electronic industry (proprietary, not being used by any other audio company I know).
- Each junction of noise paths at over a dozen circuit areas have filtration stages added.
- The original DAC chip is replaced with a first generation chipset that was manufactured to the highest die specifications (most NOS chips are "copies" made from unknown generations, these are original "mask" die chips).
- Specialized cryo'd wires are installed to replace the original bent wire leads connecting the RCA jacks.
- Select dampening compound is applied to the power supply filter capacitors and output devices.
- The changes from the Level 2 modifications yield all the Level 1 sonic improvements plus additional harmonic extraction and details top to bottom Musical micro-details are better fleshed out with more precision at every frequency. Extra information deep "within the soundstage layering" are further extracted. In a nutshell, there is a more liquid and detailed presentation and experience overall. (the NOS DAC chipset replacement extracts more of everything).Think - more sonic refinement, better imaging and music details further realized.
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