Lowering the noise floor


I am coming to the conclusion that success in home audio reproduction is largely about lowering the noise floor. There are so many different types of “noise”, from so many different sources, that we only really “hear” by their absence.

Those components, cables, accessories and tweaks that SUCCEED at lowering the noise floor, can, and do, dramatically increase sound quality. Sometimes the type of “noise” dealt with is controversial, or not (yet) widely recognized as being a problem. Sometimes the explanation of how a product works is dubious. Sometimes the way it is marketed reeks of “snake oil”. Sometimes the reviews singing its praises go over the top. While these things will certainly put off some prospective purchasers, they do not negate the audible results that are there for anyone open to hearing them.
tommylion

Showing 7 responses by ivan_nosnibor

I have spent more than $10k on treating both my home and system to reduce all types of contributors to the "noise floor": shot noise, EMF/RFI (from land, sea or air), EMR, grounding issues and so on (all Alan Maher Designs). My system only cost me $6.5k, but that $10k was spent gradually over the last 8 yrs, starting off very slowly and only progressing in price as confidence increased accordingly. But, for me, it just goes to show how important the role of this kind of problem does in fact play in music reproduction. I kept pursuing these solutions because I kept finding the ones I that I was using were working...if they didn't I would've given up on all that long ago. Everything improves. The modest $6.5k system I have is certainly modest no longer.

I could have spent that $10k on better gear, but it actually, I think, would've been a mistake, really. Sure, I could have had the inherent *potential* for better sound, but I would still be dealing with all the usual suspects that everyone else seems to be dealing with: EQ that doesn't really work well enough to truly solve problems, digititis, ss sound, "harsh" or "bright" recordings, best listening only at 4 a.m., upgraditis, insufficient timbre, tonal color, presence or sound staging, dependency on things like $$$ cables, critical speaker positioning, room peaks and nulls/room treatments...it even tamed how noisy that fridge is...all of that and much more has been either greatly reduced or eliminated. And that doesn't even take into account the transformational gains in both sound quality and presentation, all the way around.

Finding a way through this particular issue, for me, has proven to be the single biggest factor in finding that actual point at which I'm truly done with changing system hierarchy - exit strategy without compromise. I believe something like that might be the missing link for a lot of people. I suspect for most people that if they fail to investigate this aspect of music reproduction in their room space, they may be subject to the need to continually upgrade - and in vain perhaps because they might have reached their goals with less expensive gear, as I did - not by settling or compromising, but by finally solving all the right problems that were the ones that were actually standing in the way all along - and that would have continued to even after upgrading.

I think it's just possible we don't Rilly need the 'latest and greatest brand X', we just may need to focus more on what the longstanding audio problems actually are and how they can be fixed and what it might take to do that. Not for everybody for sure, but I can say that it was well more than worth it for me. No going back here. 

Cheers,
John
Ok then, let's talk specs. 

Alan Maher Designs:

"AQUA EMI Wrap Specifications:
Filter Frequency: 0Hz to 200+ GHz (max frequency of our test equipment)
Noise Suppression: 95% to 98% based on 120/240v incoming electrical service
Noise Floor Reduction: Greater than -200db max suppression of the entire frequency range (max of our test equipment)
Power Factor Correction Stabilization: 72 Hours (the fastest EMR correction to date from this product line – normally its 200 hours). 

Installed at the meter, AQUA is capable of neutralizing magnetic frequency below earth all the way down to 0Hz. What makes AQUA special compared to the other models we have offered in the past, AQUA is the first of its kind to extend frequency past the 5G wireless band. In actuality, AQUA extends the frequency band more than 2.5x the max FCC approved 5G spectrum past in 2014 (radio: both outdoor and indoor scenarios in the 28, 38, 60 and 72–73 GHz bands were published in 2014; multimeter: up to 90 GHz)." - Alan Maher  

Application: a thin paper-like material (roughly 24" x 6") that is wrapped around the pvc pipe at the incoming power path a few inches below the meter...a legal app in all 50 states. Weatherproof and seals with electrical tape. About $200.
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Fuses: 

"The Quantum TDT Fuse is the first of its kind to be released for the audio / video market. The Quantum TDT Fuse is essentially a miniature power conditioner built into a fuse application. Check out the specs:

Volume resistivity of 0.0001 Ohm per cm
Temperature Extreme: -58 to 257 degrees Fahrenheit

RF/EMI Attenuation:
10 to 100 kHz - 84 dB to 89 dB
100 kHz to 1 MHz - 82 dB to 93 dB
1 MHz to 10 MHz - 56 dB to 79 dB
10 MHz to 100 MHz - 51 dB to 70 dB
100 MHz to 1 GHz - 70 dB to 81 dB
1 GHz to 10 GHz - 62 dB to 83 dB
10 GHz to 18 GHz - 48 dB to 70 dB
18 GHz to 50 GHz – 70 dB to 45 dB

As you can see you’ll have a hard time finding a power conditioner with better noise suppression specifications." - Alan Maher

About $150 ea.

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Platforms (18" x 12" x 2.25"):

"The AQUA Active Platform is a marvel of creation. For the first time we have been able to extend the filtering bandwidth above 100 GHz with a noise suppression level below 200db across the entire frequency spectrum. The AQUA Platform is a game changer for the entire industry.

AQUA lowers the ground impedance for the entire circuit down to .001 ohms of resistance – The low impedance acts as a turbo charge for all installed AM Designs products throughout the home." Alan Maher

About $3000 ea.

I have 2 of these which I snagged on a promotional sale. Tremendous sound quality improvements.

=======================================================Alan has perhaps a hundred different products at different price levels and different apps for tackling different A/V problems, so these here are just the tip of the iceberg.

Regards,

John

What, you mean you've avoided all that by going cryo?? Not sure I get the drift here...forgive me if I'm a little slow today...battery powered headphone set up?? 
If it Is a battery powered headphone setup we’re talking about, then except for cost and audio nervosa, I’d say that you have not **completely** (to use your word) avoided all the noise issues. There is the noise from the components themselves at the very least, just for example. I’m not saying that you **have** to solve it this way, just that you could make gains with it if you wanted to. Nor am I saying that the approaches that you’ve used, or that others use generally, are somehow invalid...just that there are usually other ways to skin the audio cat (I prefer to just swing them around). From what I understand, cryo’d wire measures lower in EMR than the same untreated wire, in effect lowering resistance and increasing power efficiency.

But, as far as the icebergs go, I can only offer that you try and relax and just enjoy the cruise while it lasts. If you’re looking to guarantee smooth sailing, I’d say that you’re likely in the wrong hobby. In case you haven’t noticed, there are rather a lot of icebergs all around at any given time anyway. I’d say that we are all on that same Titanic ya know, whether we are into rearranging the deck chairs or not.

Cheers
Thanks for the explanation.

"...eliminating ANY type of Noise or Distortion would be a good thing, right?" 

Most certainly sir.
I think I understand what you’re saying with the magnetic type noise (mu metal, yes??) and also the minimized player. It’s the "...all RFI/EMI type produced or carried by the house AC, cables, fuses, power cords..." part that’s confusing me...not sure what method of noise removal here you are referring to??
I've never actually tried that, but it may be 'somewhat' worthwhile to at least look at I think. There is less noise with batteries, but from what I've gathered it never totally goes away. But, you could expect rather good results with all except most amplifiers...just not enough playing time or dynamic oomph to satisfy according to what I've seen, so going **completely** off the grid would be rather complicated and expensive, possibly to the point of being impracticable. But, with the lower wattage devices, perhaps very likely it's feasible.

Also, homes with solar power apparently often have noise problems from the cheaply made solar panel supporting electronics. Solutions have been found there too, but again, get rather pricey and specialized.