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PostPosted: 16 Oct 2012, 06:31 
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Location: Montreal, Canada
mwhouston wrote:
With the equipment stated above but replace the retro-34UL with the Silver Dragon, I had another serious listen to the Bruckner 9, download from Apple and up-converted to 24B/96K WAVs and played direct from HD on the Oppo BDP-95. On another post I didn't show a lot of enthusiasm for the tracks.

Based on his second listen I am now a convert. Bruckner 9 by Simon Rattle with the Berlin Phil. is a monstrous work. I'm not sure I "get it" 100% but I sure are enjoying it. The Silver Dragon took me there. Better than trying to fit the Berlin Phil, in my humble listening area.


Instead of downloading songs from Apple which are usually 256kbps max and up-convert them..do yourself a favor and simply go to http://www.hdtracks.com and download real 24B/96Khz wav file...your ears will thank you. :headphones:

How does an up convert works ? Does it generates more bit to make you believe you are listening to a better and more accurate recording ?? I never understood that, it's like using a crappy 128 kbps mp3 and up-converting to a 16B/44.1KHz wav and saying it sounds better...

Can someone explain how these up-converter work ?

Thanks,
Iso

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DIY SS Amp : LM3875 GC | TA2024 | TA2020 (AMP-6) | TA2022 | Amp Camp Amp | JLH
DIY Tube Amp : RH84 SE | 6V6 SET | 13FD7 SET (Chinook) | 807 UL SE | 6BQ5 Class A PP UL | 6LR8 SE
DIY Spkrs : Cyburgs Needle | MLTL (FE206E) | CSS EL70 BR | Open Baffle (Alpha 15A + FE206En) (in process...)
DIY Pre-Amp : MooseFET.
To come : MLTL (CSS enabled EL70) + more tube amp...


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PostPosted: 16 Oct 2012, 07:03 
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Location: Australia
We can't purchase from HDtraks in Australia. HDtraks claim one day we will. I do my high rez download from Linn @ 24B\192K FLACs and WAVs. Not only me but other have heard the difference between an up converted 16B\44.1khz and standard. I have also read in Stereophile where some reviewers have done the same and claim the sound is much better.

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Website: retro-thermionic


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PostPosted: 16 Oct 2012, 17:47 
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Location: Montreal, Canada
mwhouston wrote:
We can't purchase from HDtraks in Australia. HDtraks claim one day we will. I do my high rez download from Linn @ 24B\192K FLACs and WAVs. Not only me but other have heard the difference between an up converted 16B\44.1khz and standard. I have also read in Stereophile where some reviewers have done the same and claim the sound is much better.


Thanks Mark,

I'm not doubting you, I just wonder about the arithmetic used in the software to get a better sounding song from an ordinary recording, strange but nice to know that it can be done. I'm listening to the radio as I'm writing this and boy is hip hop songs dumb :eek:

Rgds,
Iso

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DIY SS Amp : LM3875 GC | TA2024 | TA2020 (AMP-6) | TA2022 | Amp Camp Amp | JLH
DIY Tube Amp : RH84 SE | 6V6 SET | 13FD7 SET (Chinook) | 807 UL SE | 6BQ5 Class A PP UL | 6LR8 SE
DIY Spkrs : Cyburgs Needle | MLTL (FE206E) | CSS EL70 BR | Open Baffle (Alpha 15A + FE206En) (in process...)
DIY Pre-Amp : MooseFET.
To come : MLTL (CSS enabled EL70) + more tube amp...


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PostPosted: 17 Oct 2012, 20:11 
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Location: Arizona, USA
Oh My, Mark you have strayed to the dark side.. I was just at the Rocky Mountain Audio Fest in Denver. About 500 exhibitors...guess what is the hot thing this year... PP KT120 mono blocks. There must have been at least 50 maybe 75 (I didn't visit all the amp rooms). Some really huge triodes in other rooms (30 cm or so tall). Sand amps were in the minority. Sand preamps and dacs were hot though and most exhibitors used digital sources - either hard drive or cloud based. The rooms were not really great for audio, but even allowing for that I was not impressed with most of the gear.

Good listening
Bruce

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PostPosted: 17 Oct 2012, 22:41 
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Location: Australia
It's always fun going to audio shows. I went to one here in Melbourne last year. Most gear I didn't like.

Chips are surely on the dark side. But I feel they don't give the detail I enjoy with the tubes. So fun for the moment but soon back to tubes. Also I have a few more EL34 SE ULs to make then a 6C33C. Got an order today for a 4S Universal tube preamp so I'm always up to my knees in glass.

A KT120 SE\UL hummmm... could be good. I did the bread board one but maybe time to get serious!

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PostPosted: 18 Oct 2012, 06:21 
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With the equipment as in my last entry I listened to a Diana Krell double 180gm LP set. Apart from shocking sibilance (particularly on side one) the set is excellent. The bass is heavy but tuneful and the chip amp (SynergyII\Cu) really lit-up. I was listening at a reasonable volume level and the bass was shaking the room. I could even feel it percussive on my chest.

I like the bass from the Silver Dragon (300BSE) but the chip amp was a whole new world of bass. OK I'll give up a little bit of detail for weightier deeper bass. Not so noticeable on classical stuff but on this LP set, it was great.

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PostPosted: 18 Oct 2012, 10:32 
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Yes DK is an excellent jazz singer, but the recordings seem to have a few issues. Even the SACD I have of her has some issues. The one I don't have (Live in Paris) is supposed to be the very best of her works.

Good listening
Bruce

For your SE KT120, a triode connection might be nice. Extreme inefficiency though. 50 watts in to get 5-8 out.

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PostPosted: 18 Oct 2012, 16:19 
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I'm leaning toward Pentode SE UL amps these days. KT120 SE\UL?

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PostPosted: 21 Oct 2012, 19:55 
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Hi Mark, A LT120 SE U/L is viable. Just remember it will take a goodly amount of drive voltage. I would estimate about +/- 40 volt swing should be sufficient.

Good listening
Bruce

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PostPosted: 22 Oct 2012, 03:34 
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Can we do it in a single stage or do we need a dual driver stage. And the driver tubes is...?

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