For Violectric V800 I would like to contribute for once.
There is a great uncertainty about how it sounds for now.
Well, we have done everything that he does not sound.
Sound is a very subjective matter, the one like something that does not like the other.
Basically, we go with the design of our equipment before so that we measure first and then listen.
Only when improving the FFT spectrum can no longer are we satisfied.
And to include a "UPL" from Rohde & Schwarz and two "D-Scope III" by Prism Sound available.
There are 4 analog and 2 digital storage of Texas Instruments.
Significant differences in sound, there should be not in "good" actually DACs, marginal already.
Why is that?
If we augehen them arriving a perfect digital signal
then convert all "premium device" at a high level with the same chips.
Namely PCM1792 and AD1955 and derivatives and derivatives.
Somewhat lower quality found CS4398 or PCM1793.
Theoretically, there is still the top about it ESS9012/9018.
We have just the test and unfortunately he does not behave really better than PCM1792 ...
The transducer, it can not be the.
The analog output is the key.
Here is filtered, buffered, amplified.
And here all manufacturers work a little differently.
If this is found in the thread that you need when no line-V800 driver to operate further away boxes, it is because that has the V800 really about professional outputs.
The matches will be driven over the radio in sometimes even 300 meters cable.
This requires a very low impedance outputs that are at the V800 level adjustable and remain low. A feature which some devices in the market obviously missing.
All modern converters have power outputs, so they must necessarily use the inverting inputs of an operational amplifier. Bandwidth is not required, on the contrary, because here also still the same, the low pass is that filters out any high frequency noise of the converter.
At this point we do not have the same tension drying on the signal because of the D / A converter is only one voltage (3.3V or 5V), the analog output electronics but with + / 15 - 18 V.
A conventional D / A converter chip has an output voltage of up incidentally +8 dB = 2.5 volts.
After the filtering stage at Violectric is the level matching - unfortunately in the unit because the circuit is so sensitive that they do not like long lines.
Here Ausgangsspanungen of +24, 18, +15, +12, +6 dBu are set for the digital full scale. The above values are for the balanced output.
Because of the unbalanced output has its own independent drivers, here are always at 9 dB lower level. Next is active in the level adjustment stage the dc offset of the transducer eliminated - without Elko!
It follows the balanced output signal in the same way as we do it 100,000 times for radio, television and studios - with low resistance and excellent value for THD, frequency response, dynamics, common-mode rejection.
As mentioned above, there are before [/ url] the balancer a bran...[i]Greeting[/i]
[i]Fried[/i]
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