An observation
- TheMadMick
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An observation
When I finish a listening session or "She who must be obeyed" calls before the end of a CD, I simply leave it in the drawer - saves thinking about which CD to warm up with. However, starting the next session with that CD seems to give an improved sound quality. I've often thought why this should be and with the increased quality LS6, BMU and silver solids have brought, it is getting even more obvious.
The only thing that occurs to me is that the CD warms a little to, say, 30C in the warm CD player which makes the polycarbonate expand (plastics typically have a large coefficient of expansion). That makes it easier for the laser to read the pits in the CD pressing thus the error correction doesn't have to work so hard. That should result in improved quality?
Anyone heard this or have an explanation?
The only thing that occurs to me is that the CD warms a little to, say, 30C in the warm CD player which makes the polycarbonate expand (plastics typically have a large coefficient of expansion). That makes it easier for the laser to read the pits in the CD pressing thus the error correction doesn't have to work so hard. That should result in improved quality?
Anyone heard this or have an explanation?
Blusound Vault 2, P50SA, A80's, BMU, TIS, LS7, MA PL200, Meridian 506 (18 bit).
- Dr Bunsen Honeydew
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Re: An observation
Mmmm CD warmers - FFS don't rell Russ Andrews or MCRU.
Brains or Gazzer or Ali Tit Baber will be shilling the MCRU ones on AoS like £100 fuses
Brains or Gazzer or Ali Tit Baber will be shilling the MCRU ones on AoS like £100 fuses
- CN211276
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Re: An observation
Main System
NVA BMU, P90SA/A80s (latest spec), Cube 1s, TIS, TISC(LS7)
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NVA P20/ A20, Cubettes, LS3, SSP, SC
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Headphones
Grado SR325e/Chord Mojo, Beyerdynamic Avetho/AQ DF Colbat
RIP Doc
NVA BMU, P90SA/A80s (latest spec), Cube 1s, TIS, TISC(LS7)
Sonore OpticalRendu, Chord Mscaler & Qutest, Sbooster PSs
Network Acoustics Eno, ifi iPurifier3, AQ JB FMJ, Cisco 2940 & 2960
DH Labs ethernet, BNC & USB cables, Farnells cat 8 ethernet cable
Second System
NVA P20/ A20, Cubettes, LS3, SSP, SC
Sonore MicroRendu, Chord Mojo 2 MCRU PSs, AQ Carbon USB cable & JB FMJ
Headphones
Grado SR325e/Chord Mojo, Beyerdynamic Avetho/AQ DF Colbat
RIP Doc
- TheMadMick
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Re: An observation
Oddly, I suspect they have done that already but when I put the idea to one of the staff he was very "off hand" about it. Interestingly, I can't find it on his web pages any more. Another product that has come and gone?Dr Bunsen Honeydew wrote:Mmmm CD warmers - FFS don't rell Russ Andrews or MCRU. SNIP
Blusound Vault 2, P50SA, A80's, BMU, TIS, LS7, MA PL200, Meridian 506 (18 bit).
Re: An observation
I mostly take my cd's out unless I know I will listen again after a short interval. Will take more notice next time I have a listening session after leaving the cd in the player. I know my brothers' manufacturer recommends removing the cd after every listening session, don't know why.
- Fretless
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Re: An observation
Do you turn the CDP off or leave it on ?
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- TheMadMick
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Re: An observation
It's got valves so it stays on 24/7 and matched sets of Nu Vistors are hard to get.Fretless wrote:Do you turn the CDP off or leave it on ?
Blusound Vault 2, P50SA, A80's, BMU, TIS, LS7, MA PL200, Meridian 506 (18 bit).
Re: An observation
I always thought you switched off valves to save the life in them. I know Audio Research and VTL amps should be switched off, are cdp's different. My Project is left on 24/7. My brothers cdp is put on standby.TheMadMick wrote:It's got valves so it stays on 24/7 and matched sets of Nu Vistors are hard to get.Fretless wrote:Do you turn the CDP off or leave it on ?
- TheMadMick
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Re: An observation
I am told that the main strain on a valve is switching it on. The advice I had from MF was, confusingly, to leave the player on and to switch the amplifier off. I leave the CD player on most all the time and switch off the amp when I'm away for a week or more. Seems like a sensible compromise and is consistent with advice from John Sampson who upgraded both.Antonio66 wrote:SNIP I always thought you switched off valves to save the life in them. I know Audio Research and VTL amps should be switched off, are cdp's different. My Project is left on 24/7. My brothers cdp is put on standby.
Bottom line - you pays your money and stocks up on spare valves (yes I have spares - valve rolling is fun as well) - it's worth it for the sound quality. My Nu Vistors must be about 20 years old and have been switched on and off no more than 20 times I'd guess.
Blusound Vault 2, P50SA, A80's, BMU, TIS, LS7, MA PL200, Meridian 506 (18 bit).