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B.M.C. The Pure USB I Cable - what is it?


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While audiophile USB cable generally try to limit transmission losses and noise by material tuning, B.M.C.'s PureUSB 1 provides a better solution: An active electronic circuit restores and reshapes the digital USB signal just before entering the DAC. Beside this it filters the noise on the USB power supply.

 

An active high grade USB interconnection which enhances the sound quality of modern USB DAC amazingly.

 

This solution provides a better USB signal and ultimately sounds better.

Another advantage is the reduction of length sensitivity. The cable is allowed to be longer without causing losses, so 5m sound virtually the same compared to 2m.

 

B.M.C.'s PureUSB 1 is available in 2m and 5m.

 

B.M.C. Audio

 

Anyone have any idea what this actually is/does? If so, what do you think?

Main listening (small home office):

Main setup: Surge protector +_iFi  AC iPurifiers >Isol-8 Mini sub Axis Power Conditioning+Isolation>QuietPC Low Noise Server>Roon (Audiolense DRC)>RPi4 (dietpi)>Kii Control>Kii Three >GIK Room Treatments.

Secondary Listening: Server>Matrix Element i Streamer/DAC (XLR)>Kii Three .

Bedroom: SBTouch to Cambridge Soundworks Desktop Setup.
Living Room/Kitchen: RPi 3B+ running RoPieee to a pair of Morel Hogtalare. 

All absolute statements about audio are false :)

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While audiophile USB cable generally try to limit transmission losses and noise by material tuning, B.M.C.'s PureUSB 1 provides a better solution: An active electronic circuit restores and reshapes the digital USB signal just before entering the DAC. Beside this it filters the noise on the USB power supply.

 

An active high grade USB interconnection which enhances the sound quality of modern USB DAC amazingly.

 

This solution provides a better USB signal and ultimately sounds better.

Another advantage is the reduction of length sensitivity. The cable is allowed to be longer without causing losses, so 5m sound virtually the same compared to 2m.

 

B.M.C.'s PureUSB 1 is available in 2m and 5m.

 

B.M.C. Audio

 

Anyone have any idea what this actually is/does? If so, what do you think?

 

I just got a weird look for laughing out loud at work. This belongs on the DiyAudio "Funniest Snake Oil" Thread:

Funniest snake oil theories - diyAudio

Flac audio (MBP) to miniDSP 10x10 running REW and active crossovers to ADCOM GFA 555 and 2 QSC GX5's (Tri Amped). Using Paradigm Studio 100 V.2 Speakers modded for the Active Crossover and stereo Velodyne HGS12 subwoofers.

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Whether it sounds better or not, certainly one could have an active buffer, galvanic isolation, and some other things to reduce noise on the thing. So it is plausible it does something real. Of course one could buy those monoprice USB extenders for a pittance which are also active. And may or may not do something similar. They certainly allow you to get the computer well away from the rest of your system as they are available in lengths up to 82 ft.

 

The extenders must improve the signal somewhat. They work even in the long lengths while conventional unimproved USB is limited to 5 meters. Sometimes will work a bit longer, but nothing like 82 ft.

And always keep in mind: Cognitive biases, like seeing optical illusions are a sign of a normally functioning brain. We all have them, it’s nothing to be ashamed about, but it is something that affects our objective evaluation of reality. 

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  • 2 years later...

 

I just got a weird look for laughing out loud at work. This belongs on the DiyAudio "Funniest Snake Oil" Thread:

Funniest snake oil theories - diyAudio

Your jokes don't help in this case. I've tried the BMC cable and it works fine at 5 meters. It sound a little better than a cheaper usb cable I have here, but then again they all sound a bit different, if they are made different.

Tarq

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Whether it sounds better or not, certainly one could have an active buffer, galvanic isolation, and some other things to reduce noise on the thing. So it is plausible it does something real. Of course one could buy those monoprice USB extenders for a pittance which are also active. And may or may not do something similar. They certainly allow you to get the computer well away from the rest of your system as they are available in lengths up to 82 ft.

 

The extenders must improve the signal somewhat. They work even in the long lengths while conventional unimproved USB is limited to 5 meters. Sometimes will work a bit longer, but nothing like 82 ft.

BMC is a reputable company with very good engineers. They are a high end product manufacturer, so their products are not cheap in comparison.

There are many other products on the market now that address noise on the 5 volt line. I tried the the Audioquest Jitterbug which worked well on my $79.00 computer speaker, but degraded the sound somewhat when used on the BMC usb cable.

 

Another product is the USB Disruptor by another company. This is a low noise power supply which plugs in to the usb inlet on a receiving component, then your usb cable plugs into it. This one clarified the music, a small but noticeable amount when used with the BMC usb cable. Their price is fairly low at $79.00. I've seen more elaborate ones for $300+

Tarq

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B.M.C. has a bad reputation in Europe with many faulty amplifiers and other components.

Hence many European dealers and distributors got away with bmc.

 

Although bmc had good ideas; quality control is poor.

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BMC is a reputable company with very good engineers. They are a high end product manufacturer, so their products are not cheap in comparison.

There are many other products on the market now that address noise on the 5 volt line. I tried the the Audioquest Jitterbug which worked well on my $79.00 computer speaker, but degraded the sound somewhat when used on the BMC usb cable.

 

Another product is the USB Disruptor by another company. This is a low noise power supply which plugs in to the usb inlet on a receiving component, then your usb cable plugs into it. This one clarified the music, a small but noticeable amount when used with the BMC usb cable. Their price is fairly low at $79.00. I've seen more elaborate ones for $300+

 

You implying Monoprice isn't a reputable company? I bet they have sold more extenders than BMC has sold products. They work too. Even in the long lengths you get no errors.

And always keep in mind: Cognitive biases, like seeing optical illusions are a sign of a normally functioning brain. We all have them, it’s nothing to be ashamed about, but it is something that affects our objective evaluation of reality. 

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