slim.a
1000+ Head-Fier
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- Jan 8, 2009
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Quote:
BTW, does changing PLL settings bring the same results with V5 as older versions?
Is it possible to exchange the V4 against the V5, or send the V4 for a firmware upgrade?
I tried it very quicly yesterday night and it seems that changing the jumpers on the DSP1 bring the same effects on the V3 as it was the case on the V5. FauDrei has given a pretty accurate description of the effects of the DSP1 settings somewhere in this thread and they are still relevant in this case.
The only settings that are worth mentioning are:
PLL: when turned off, there was an increase in soundstage and in (fake or real?) resolution. However, I didn't like the sound and I felt that something was off like the whole reproduction lacked coherency.
Passband settings: Those who feel that representation of the V5 is too glossy or too pristine, can probably try the -90db and -50db settings. With those lower settings, the representation was smoother, less processed, more "analog like" but there was a definite loss in the sense of focus and 3D imaging.
I ended up returning to the stock settings very fast as it was the most neutral and balanced representation to my ears. I understand that with different preferences and with different gears, people might end up with different settings, but to my ears, the DSP1 V5 in its stock setting just sound right and fun to listen to with a wide variety of music.
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I just received an email from Audio-GD which will disappoint a lot of us - they will not upgrade existing DSP modules - so what you've got is it.
Presumably they may still sell you a completely new module = bigger profit.
On Tweak-fi, there is a thread on modding the DSP module - it should gain a lot of momentum with this news.
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I've just ordered a V5 board yesterday because I got the same reply. Pity I can't upgrade my V4, it'll end in the For Sale section here, if somebody wants it.
Too bad they are not offering an upgrade for those who already have DSP1 boards. Maybe that modding the older boards (as discussed here) will be the most cost effective solution?
As a more general observation, and because of the generalization of Computer as a transport, we should probably look for NOS/filterless DACs that can accept very high sample rates (24/384 or even 32/768). That way all the oversampling/filtering could be done in software in the PC/Mac Side and we could try different filters algorithms without touching the insides of the DAC.
The maker of XXHighend (the media player) is currently working on a 32/384 capable DAC (based on PCM1704 I believe) that rely on software (their media player) for the filtering side. To me, it seems like one of the most future proof and promising DACs out there.