BMU noise
- Dr Bunsen Honeydew
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- Latteman
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Re: BMU noise
If you read the above post in isolation you can make up some interesting theories
Analogue Source -
Denon DP47f; AT-VM95SH
GL-59; ARB uni pivot; AT- Signet
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- Argon Pi4 v2; IfI iUSB 3.0, Ifi Neo idsd Dac;
Tidal / Radio Paradise
Amplification Nva 300va mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources
Denon DP47f; AT-VM95SH
GL-59; ARB uni pivot; AT- Signet
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- Argon Pi4 v2; IfI iUSB 3.0, Ifi Neo idsd Dac;
Tidal / Radio Paradise
Amplification Nva 300va mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources
- CN211276
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Re: BMU noise
I recall a magazine in the 80s saying a humidifier improved SQ.Ed345 wrote: ↑Sun Jan 20, 2019 2:22 pmRather embarrassingly, it turns out I’ve been screwing myself. I tracked down the problem to a humidifier that I hade constantly running on low setting. Great big hum on low setting, lesser hum on high setting. Inky black silence when it’s turned off.
Time to start living with dry air...
Main System
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, Lindy cat 6 US 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
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, Lindy cat 6 US 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
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Re: BMU noise
Don't laugh, it really did sort this reviewer's issue with underfloor heating set high and not readily adjustable, coupled with good double glazing. helped with static on his LP's as well - and he had thousands of records and maybe still has. I visited there regularly back then and can vouch for the humidifier in his particular situation.
Hanging on in quiet desperation is the English way...The time has gone, The song is over, Thought I'd something more to say...
- CN211276
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- Joined: Tue Aug 09, 2016 9:29 am
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Re: BMU noise
Am i correct in recalling it is James Michael Hughes who wrote in HiFi Answers._D_S_J_R_ wrote: ↑Mon Jan 21, 2019 3:25 pmDon't laugh, it really did sort this reviewer's issue with underfloor heating set high and not readily adjustable, coupled with good double glazing. helped with static on his LP's as well - and he had thousands of records and maybe still has. I visited there regularly back then and can vouch for the humidifier in his particular situation.
Main System
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, Lindy cat 6 US 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
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, Lindy cat 6 US 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
Re: BMU noise
I have built one of these after having intermittent success with the Alt Hifi. Not only does DCT03 produce inky black silence, even when switching to phono, it has doubled the improvement from my BMU. Fantastic piece of kit. Thoughrouly recommended for DC Hum from the BMU or any other audio device.keepitsimplestupid wrote: ↑Wed Jan 16, 2019 10:10 pm and if you have more DC than that simple two cap unit can deal with try one of these, he does bare pcbs as well
https://sjostromaudio.net/cart/en/mains ... -unit.html
- Dr Bunsen Honeydew
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Re: BMU noise
Jimmy Hughes liked his listening air rather humid, but others prefer dry air. Sound certainly propagates differently with humidity I understand, but the main thing where the dratted vinyl is concerned is temperature, as many cartridges have temp sensitive suspension parts, which can play havoc with tracking ability and high frequency response. Speakers too have massive changes with room temperature, I suggest those with rubbery suspensions and lowish damping. Maybe tightly suspended speakers and foam surrounds aren't affected the same?
Hanging on in quiet desperation is the English way...The time has gone, The song is over, Thought I'd something more to say...