[GoldenSound]

Regarding the situation that some friends mentioned that the DAM1 is empty internally, here are some answers on behalf of our engineers:

Since the DAM1 has no internal power supply, no earphones and only a pure DAC function, power consumption is very low. As a flagship DAC, the DAM1 uses the latest technology. The new electronics have resulted in significant miniaturisation of high-end materials. For example, the power supply: a 4uv noise linear regulator less than the original dozens of mv lm317 1/10 volume, and less than dozens of uv LT TO-220 1/10.

Noise relative to LM317 down nearly 10,000 times, but the volume is only equivalent to the size of two grains of rice. Not only power supplies, but also crystals and capacitors. High-performance film capacitors, previously as large as a fingernail cap, now only as small as 0805 (0.2mm) and can be SMD. For example, 22.5792MHZ crystal, now as small as 2016 size (0.5mm), but performance up to +-0.5ppm,-144 dbc/hz (1khz). Therefore, small size and high performance can be achieved.

In addition, with the multilayer PCB technology has been very mature, HIFI motherboard multilayer has been an industry trend, but some R & D engineers may not be skilled in the design of this multilayer impedance board. Multilayer PCBs have more complete ground planes and protection, as well as shorter paths, thus providing better signal quality. As a manufacturer capable of designing X86 HIFI motherboards, we are skilled in the design of these multilayer impedance boards. Due to the use of multilayer PCBs and miniaturisation of high-end components, the DAM1 does not need a large PCB at all.

DAM1 uses four layers of gold immersion, two-sided chip components, and impedance matching PCB, components are small, so the PCB is not large, it does not look like a traditional product that "uses a lot of components".

In fact, we are very careful about the choice of materials for the DAM1, perhaps audiophiles may not have noticed all of them. Here do not go into detail, only a few for reference:

The core has an 8-way level 500mA/1A, about 4uv noise reference linear power supply system. In addition to this, there are multiple dozens of uv levels of power.
DAM1 has two custom AT-cut OCXO levels with custom audio frequencies - 22.5792MHZ, 24.576MHZ high-end clocks. Heated to an accuracy of about <0.03ppm, 1khz -145dbc/hz.
We make extensive use of high performance polymer filter capacitors of less than 5 milliohms with >= 100uf capacity.
The PA1 module as well as the PLL of the Jinling DSP use two crystals, both low-noise, high-precision TCXOs.
Small package capacitors, all film capacitors when they can be used, etc.

Any chance of review units heading out anywhere? I'd be very interested to test this!

 

[soundaware]

Do the DAM1 and LPX come in black? Seeing as how there aren't color options on the site, I'm guessing the answer is no.

There is only one colour to choose from, in order to create a visually better match with other products.

 

[soundaware]

Any chance of review units heading out anywhere? I'd be very interested to test this!

Maybe we can organise a tour afterwardsOf course this requires some preparation.

 

[1laraz]

I am still wondering what is the difference between PA1-REF and other USB reclockers

 

[soundaware]

I am still wondering what is the difference between PA1-REF and other USB reclockers

PA1's optimisation of the USB module is based on signal regeneration. The original audio data signal is first converted into memory data, and then use a clean power supply, HIFI design and independent clock to regenerate, so as to generate extremely clean signals and power supply from the source, which is a more complex and costly programme. At present, many HIFI network switch is used in this type of programme, first of all, the received network data, through the switch chip stored in the switch's ARM / DSP memory, and then according to the IP memory data to regenerate network signals, forwarded to a specific host. If the switch uses a true HIFI design, at least use linear or better power supply and independent HIFI clock, while the design minimises the interference in the input signal to data process, it is possible to achieve ultra-low noise signal output.