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Geek Pulse: Geek desktop DAC/AMP by Light Harmonics

Oct 3, 2015 at 5:24 AM Post #9,422 of 13,808
miceblue said:
I'm not really getting the whole "missing a lot of bass" thing. You make it seem as if the DAc/amp has a -20 dB roll off at the bass frequencies or something. XD

I don't really notice any serious lack of bass compared to anything else I've heard minus the Yggy or warm amps/DACs.
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I don't think it is a serious lack compared to some other DACs I did find it paired better with warmer headphones, so I believe it if people think there is something less warm about it than some other DACs.

The difference is not huge, but at this level even a minute difference tends to be exaggerated right (eg, according to the Innerfidelity tests only one person out of all the people who did the double blind AB tests on Tyl's rig could tell the difference between the Yggy and a ToTL delta sigma DAC to any statistical degree of significance).

So even a difference that is so.small that cannot be rwliably distinguished in ABX testing is a HUGE difference.
 
Oct 3, 2015 at 1:33 PM Post #9,424 of 13,808
Thanks to infinity Im a SACD ripper now!
Until 2 weeks ago I really did not care much about the topic "DSD to PCM via software transcoding" until Ive decided to listen to true DSD recordings and OMG 
basshead.gif

I don't know if its the infinity or the DSD std but OMG! Amazing experience.
 
Oct 3, 2015 at 7:15 PM Post #9,426 of 13,808
chefano said:
Thanks to infinity Im a SACD ripper now!

Until 2 weeks ago I really did not care much about the topic "DSD to PCM via software transcoding" until Ive decided to listen to true DSD recordings and OMG :basshead:
I don't know if its the infinity or the DSD std but OMG! Amazing experience.
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Yep! I had the same experience myself with my GO450! And I expect an upgrade when I get my Infinity! Hopefully before month's end.
 
Oct 3, 2015 at 7:39 PM Post #9,427 of 13,808
Any advice on DSD ripping? Have a few SACDs, what else so I need? I have bought done hi rez from various sites. Is that it?
 
Oct 3, 2015 at 8:25 PM Post #9,429 of 13,808
For me is the same. I know it is in the mastering.. Everything is mastering!! At a moment notice, converting a dsd to pcm on jriver and sending it to dac was very enjoyable... But when i got to listen native dsd, I was like, "ok there is something different here"..

But It is hard to pin down. But technically... Sending a delta sigma signal to the to a delta sigma DAC like the Pulse, bypasses the TCM/FRM filters...since those are for PCM signals at the moment of upsampling for DA convertion...so it could be argued that it is a more pure audio signal... Since all is done to is get it through a low pass filter to protect your tweeters

That's my appreciation... Others are welcome to correct me on technical details.. In the end, i am very excited to get the chance to listen to dsd256 music on my Pulse Infinity!!
 
Oct 4, 2015 at 12:53 AM Post #9,430 of 13,808
doctorjazz said:
Any advice on DSD ripping? Have a few SACDs, what else so I need? I have bought done hi rez from various sites. Is that it?
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From everything I have ever read about it, a Playstation 3 with a really old firmware version is required. Unfortunately I do not believe you can back-rev firmwares on a PS3, so that makes finding one prior to that firmware hard, and expensive.
 
If you find another way to do it I would definitely be interested in reading about it.
 
Jody
 
Oct 4, 2015 at 3:27 AM Post #9,432 of 13,808
If you look in the comments section of the Pulse Indiegogo campaign there is a person who has their Infinity 2.0 in hand.
 
Oct 4, 2015 at 12:04 PM Post #9,434 of 13,808
I didn't feel like waiting for all the versions to complete ( a wave lesson) so I went basic. In really liking it as it burns in. It's becoming very natural sounding with the he560. The vibro does not seem to have great synergy with it. It's a very energetic sound with those . Not what I like from that headphone . The details and imaging are great but the bass seems to be cowering behind the presence region. 180 from where it began. So maybe the next 50 hours will turn again for the vibro. As I said the 560 loves this amp/dac. Sounds remarkably like the Gov2 with them. (With more headroom and finer micro detail in the soundstage.) Oddly the ZMF also loves the gov2 but the signature has remained pretty steady there after 100 hrs.
 
Oct 4, 2015 at 3:33 PM Post #9,435 of 13,808
tvnosaint said:
I didn't feel like waiting for all the versions to complete ( a wave lesson) so I went basic. In really liking it as it burns in. It's becoming very natural sounding with the he560. The vibro does not seem to have great synergy with it. It's a very energetic sound with those . Not what I like from that headphone . The details and imaging are great but the bass seems to be cowering behind the presence region. 180 from where it began. So maybe the next 50 hours will turn again for the vibro. As I said the 560 loves this amp/dac. Sounds remarkably like the Gov2 with them. (With more headroom and finer micro detail in the soundstage.) Oddly the ZMF also loves the gov2 but the signature has remained pretty steady there after 100 hrs.
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Have you tried playing with the gain or filter settings?
 
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