The BMU Bandits

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Fretless
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Re: The BMU Bandits

Unread post by Fretless »

The NVA Aesthetics Police will be relieved to hear that the offending white plugs have been replaced by cool-looking black ones. 8-)

Sorry, Firebug, not MCRU or RA. :dance:
NVA: P50sa - SSP - A40 - LS6 - Cube2 - BMU
DAC: TeraDak V4.5 Chameleon CD: Cambridge CXC
Digits: Acer Veriton L460 PC + Volumio + AQ Jitterbug
USB: Oehlbach XXL Masterclock > AQ Carbon USB
Ethernet: Silent Angel Bonn N8 > AQ Cinnamon
Cans: AQ NightHawk Carbon + MF XCAN v3

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Keithh
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Re: The BMU Bandits

Unread post by Keithh »

I had one of the first run and it stayed and won't be moving. The immediate effect was like having an extension to the living room as the rear wall seemed to have been moved back 6 feet - incredible. Only downside was the hum which I had from the A80s seemed to move to the BMU but that has reduced over time and I have to listen for it now.
Of all noises, I think music is the least disagreeable. - Samuel Johnson
In == Vortexbox + Raspberry Pi + BOSS DAC/ Goldring 1042 + SL-1210MK2 + Phono 1
Shaking it all about == P50SA + SP + A80s
Out == LS6 biwire + Cube 1
Bubbling under == BMU

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terrybooth
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Re: The BMU Bandits

Unread post by terrybooth »

Keithh wrote:
Fri Jun 21, 2019 2:54 pm
hum which I had from the A80s seemed to move to the BMU
Yeah, but just think of it as an old marshall/fender/vox guitar amp turned up to 11. :grin:
Pioneer PL71/DL103/ Phono2/HiFiPi/P90SA/TIS/CubixPro

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CN211276
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Re: The BMU Bandits

Unread post by CN211276 »

I got rid of the hum with a DC blocker the Doc provided a link to. Around £80.
System: DC Blocker, NVA BMU, Cisco 2960G, Sonore MicroRendu/MCRU PS, AQ Jitterbug, ifi iPurifier 3, Chord Mscaler, Chord Qutest/MCRU PS, NVA P90SA Mk2, NVA A80s Mk3, NVA Cube 1s, NVA TSCS, NVA TIS, Blue Jeans dual BNC, AQ Carbon USB, Cat 8 ethernet.
HP:Grado SR 325e, Chord Mojo.
Analogue: Rega Planar 3, Denon DL-110, NVA Phono 1, NVA SSP.
Second System:NVA P20, NVA A20, NVA Cubettes, NVA LS3, NVA SSC, Arcam Miniblink or Mojo.
Out:Oppo PM3, AQ DF Red.

RIP Doc

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scotty38
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Re: The BMU Bandits

Unread post by scotty38 »

Atlhifi is the place I think, well that's where I got mine from...

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Fretless
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Re: The BMU Bandits

Unread post by Fretless »

I've just worked out that with an extension cable I can also hook the bedroom system (Pi/DAC, Sansui amp & Cube3) up to the BMU.

Could be fun. Have to rig up the cable now.
NVA: P50sa - SSP - A40 - LS6 - Cube2 - BMU
DAC: TeraDak V4.5 Chameleon CD: Cambridge CXC
Digits: Acer Veriton L460 PC + Volumio + AQ Jitterbug
USB: Oehlbach XXL Masterclock > AQ Carbon USB
Ethernet: Silent Angel Bonn N8 > AQ Cinnamon
Cans: AQ NightHawk Carbon + MF XCAN v3

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Re: The BMU Bandits

Unread post by Fretless »

Don't often get the chance to listen to my main system during the day, but one afternoon this week (trying to escape from 33-degree heatwave) I did. The BMU was humming quite loudly - which is the first time I have heard it doing that.

Then the sun went behind a cloud and the humming stopped.
Sun came back - humming started again.

I have quite a large solar-panel array on the barn roof at the back of the house and this is obviously kicking some noise into the mains here, this is also audible via the old NVA A40 that I have in the lounge - that buzzes slightly through the speakers to let me know when the panels are starting-up.
NVA: P50sa - SSP - A40 - LS6 - Cube2 - BMU
DAC: TeraDak V4.5 Chameleon CD: Cambridge CXC
Digits: Acer Veriton L460 PC + Volumio + AQ Jitterbug
USB: Oehlbach XXL Masterclock > AQ Carbon USB
Ethernet: Silent Angel Bonn N8 > AQ Cinnamon
Cans: AQ NightHawk Carbon + MF XCAN v3

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Re: The BMU Bandits

Unread post by CN211276 »

I do not have solar panels but for some reason my BMU would usually hum first thing in the morning. This stopped when I connected it to a DC blocker.
System: DC Blocker, NVA BMU, Cisco 2960G, Sonore MicroRendu/MCRU PS, AQ Jitterbug, ifi iPurifier 3, Chord Mscaler, Chord Qutest/MCRU PS, NVA P90SA Mk2, NVA A80s Mk3, NVA Cube 1s, NVA TSCS, NVA TIS, Blue Jeans dual BNC, AQ Carbon USB, Cat 8 ethernet.
HP:Grado SR 325e, Chord Mojo.
Analogue: Rega Planar 3, Denon DL-110, NVA Phono 1, NVA SSP.
Second System:NVA P20, NVA A20, NVA Cubettes, NVA LS3, NVA SSC, Arcam Miniblink or Mojo.
Out:Oppo PM3, AQ DF Red.

RIP Doc

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Ali Tait
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Re: The BMU Bandits

Unread post by Ali Tait »

Fretless wrote:
Thu Jun 27, 2019 7:57 am
Don't often get the chance to listen to my main system during the day, but one afternoon this week (trying to escape from 33-degree heatwave) I did. The BMU was humming quite loudly - which is the first time I have heard it doing that.

Then the sun went behind a cloud and the humming stopped.
Sun came back - humming started again.

I have quite a large solar-panel array on the barn roof at the back of the house and this is obviously kicking some noise into the mains here, this is also audible via the old NVA A40 that I have in the lounge - that buzzes slightly through the speakers to let me know when the panels are starting-up.
Have you checked your mains reading? Having solar panels can add 10v or more to your mains when they are producing. If your mains is high to begin with, transformers could become unhappy with this.

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Fretless
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Re: The BMU Bandits

Unread post by Fretless »

Thanks for that tip Ali. Standard AC voltage in The Netherlands should be about 230V - I think I have a multimeter somewhere and I'll try to check it.
NVA: P50sa - SSP - A40 - LS6 - Cube2 - BMU
DAC: TeraDak V4.5 Chameleon CD: Cambridge CXC
Digits: Acer Veriton L460 PC + Volumio + AQ Jitterbug
USB: Oehlbach XXL Masterclock > AQ Carbon USB
Ethernet: Silent Angel Bonn N8 > AQ Cinnamon
Cans: AQ NightHawk Carbon + MF XCAN v3

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