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Monoprice Monolith Liquid Platinum - By Alex Cavalli
Mar 12, 2019 at 2:52 PM Post #1,846 of 5,240
@atomicbob - I know you're doing a lot of measurements, and wonder if you have experience with attenuators such as the ones @Wes S found (post # 1846) ?
 
Mar 12, 2019 at 4:09 PM Post #1,847 of 5,240
Harrison Labs 12 dB attenuator comprises the following based on data available from the internet:

20190312 Typical unBalanced fixed passive attenuator.png


That is as simple as it gets. Attenuation is actually 12.24 dB.

If Nobsound would actually change the NS-05P from a 50K Alps to a 10K Alps pot, that would be the better solution. I had seen the spec change on Amazon from 50K to 10K a short while ago and acquired another one only to find present stock still has 50K pots. They are probably waiting to flush the backstock before making a change. I note spec has since been returned to 50K on Amazon.
 
Mar 12, 2019 at 4:42 PM Post #1,848 of 5,240
atomicbob said:
Harrison Labs 12 dB attenuator comprises the following based on data available from the internet:



That is as simple as it gets. Attenuation is actually 12.24 dB.

If Nobsound would actually change the NS-05P from a 50K Alps to a 10K Alps pot, that would be the better solution. I had seen the spec change on Amazon from 50K to 10K a short while ago and acquired another one only to find present stock still has 50K pots. They are probably waiting to flush the backstock before making a change. I note spec has since been returned to 50K on Amazon.
Click to expand...
Do you think, from your experience, that these 12.24 dB attenuation plugs would change the sound? In other words, for people like me who do NOT have golden ears - would I hear any drop in sound quality if I use these between my DAC and the LP?
All I want is more usable volume range from my LP volume knob, without screwing up my source quality in a noticeable way... :wink:
 
Mar 12, 2019 at 4:46 PM Post #1,849 of 5,240
kumar402 said:
anyone using Schiit Saga with LP?
Click to expand...

I have used them together, passive mode only. I may be wrong and I did not measure it but I think I heard the highs slightly rolled off. Was using 3ft LC1 cables and modi multibit. I thought I could hear a slight difference. I don't really need more volume play on the LP since I just use HD6xx for now and 90% of the stuff I listen to is DR8 or more so it helps. I used saga so I could use mimby on my speakers as well, but then realized the LP has that sweet passthrough so I actually run OUT of the LP to saga. I prefer the mimby going right into the LP.
 
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Mar 12, 2019 at 4:47 PM Post #1,850 of 5,240
Zachik said:
Do you think, from your experience, that these 12.24 dB attenuation plugs would change the sound? In other words, for people like me who do NOT have golden ears - would I hear any drop in sound quality if I use these between my DAC and the LP?
All I want is more usable volume range from my LP volume knob, without screwing up my source quality in a noticeable way... :wink:
Click to expand...
i would love to know this, too.
 
Mar 12, 2019 at 5:12 PM Post #1,852 of 5,240
Zachik said:
Do you think, from your experience, that these 12.24 dB attenuation plugs would change the sound? In other words, for people like me who do NOT have golden ears - would I hear any drop in sound quality if I use these between my DAC and the LP?
All I want is more usable volume range from my LP volume knob, without screwing up my source quality in a noticeable way... :wink:
Click to expand...

Wes S said:
i would love to know this, too.
Click to expand...
Please look at the blue line in the 12 dB attenuation graph in this post:
https://www.head-fi.org/threads/gol...-technical-measurements.899382/#post-14761029

With 2 feet of a low capacitance cable, Belden 1800F, high frequency roll-off was less than 0.125 dB at 20 KHz. Use Blue Jeans LC-1 or AudioBlast HQ-1 cables for single ended connections.
 
Mar 12, 2019 at 5:53 PM Post #1,853 of 5,240
atomicbob said:
Please look at the blue line in the 12 dB attenuation graph in this post:
https://www.head-fi.org/threads/gol...-technical-measurements.899382/#post-14761029

With 2 feet of a low capacitance cable, Belden 1800F, high frequency roll-off was less than 0.125 dB at 20 KHz. Use Blue Jeans LC-1 or AudioBlast HQ-1 cables for single ended connections.
Click to expand...
Thanks as always for the info! I might give these a try, as i dont need much more range with pot. I actually have pair in hand, as well as Blue Jeans LC-1 in 1ft length, and may give them a try soon.
 
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Mar 12, 2019 at 5:56 PM Post #1,854 of 5,240
atomicbob said:
With 2 feet of a low capacitance cable, Belden 1800F, high frequency roll-off was less than 0.125 dB at 20 KHz.
Click to expand...
Is that a scientific way to say: "No audible change to sound at least up to 20KHz" ? :wink:
 
Mar 13, 2019 at 2:40 AM Post #1,855 of 5,240
Burn in....

Was reading the manual for the LP and it says after around 100 hours of play the sound characteristics of the amp will settle in.

Are any of you able to describe how the sound of LP changes during and after burn in? Very curious on what direction my LP is heading in while I put in the hours.
 
Mar 14, 2019 at 1:01 PM Post #1,856 of 5,240
VintageAudio said:
Burn in....

Was reading the manual for the LP and it says after around 100 hours of play the sound characteristics of the amp will settle in.

Are any of you able to describe how the sound of LP changes during and after burn in? Very curious on what direction my LP is heading in while I put in the hours.
Click to expand...
I guess manufacturer suggest burn in of amp for tube used to be properly burned in. If you buy any good NOS tube they would suggest something like 100 hrs and up of burning in.
I don’t feel non NOS tube need 100 hrs. But NOS tubes do sound smoother after burn in
 
Mar 14, 2019 at 1:03 PM Post #1,857 of 5,240
Mar 14, 2019 at 1:11 PM Post #1,859 of 5,240
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