More 'Audiophile' bullsh*t

[dudleybloke]

Iv asked the national grid if they plan to fit all the HV pylons with bamboo feet.

Not heard back yet.

[qube_TA]

TonyRPH said:

Yet more...

£237 buys you a pair or cylinders probably containing little more than a capacitor and resistor - possibly an inductor too.

But I'm betting they are nothing more than a low pass filter.

If they're removing the 'noise floor' then they're more likely to be high pass filters.

[FredClogs]

"Holographic Sound" - Nice!

[Chimune]

Bradgate said:

Chimune said:

Someone just sent me a link to this 13A fuse ...:

www.russandrews.com/product-Russ-Andrews-13A-Super...

That may be a superior fuse, but the sound will still be inherently compromised if the quality of the electricity going through the cables, fuses and plugs is sub-optimal.

Some power stations generate electricity by burning poor quality imported coal. This combusts with considerable thermal inconsistency, and those cyclic fluctuations can be transmitted into the end product, the power which runs your system, thereby reducing your listening pleasure.

This problem can be eliminated by choosing power generated by burning 100% pure Yorkshire anthracite, the finest electricity on the market, and the clear choice of the hi-fi purist.

We can supply this superior power source direct to your home for only £99 per KW/h, plus fitting and VAT.

Why compromise?

Hehe - I posted on that minithread too (Clarkson avatar ).... some funny responses there - love idea of plating the wife in silver!

[TonyRPH]

qube_TA said:

TonyRPH said:

Yet more...

£237 buys you a pair or cylinders probably containing little more than a capacitor and resistor - possibly an inductor too.

But I'm betting they are nothing more than a low pass filter.

If they're removing the 'noise floor' then they're more likely to be high pass filters.

High pass means they would likely provide attentuation in the audio band, which you wouldn't want surely.

By "low pass" I meant that they will pass audio frequencies and attenuate above say 30kHz.

As for removing / improving the 'noise floor' - well I think we all know that's not really going to happen, unless they are used by someone living directly adjacent to a LW transmitter! (In which case you'll want a low pass filter).

[qube_TA]

TonyRPH said:

qube_TA said:

TonyRPH said:

Yet more...

£237 buys you a pair or cylinders probably containing little more than a capacitor and resistor - possibly an inductor too.

But I'm betting they are nothing more than a low pass filter.

If they're removing the 'noise floor' then they're more likely to be high pass filters.

High pass means they would likely provide attentuation in the audio band, which you wouldn't want surely.

By "low pass" I meant that they will pass audio frequencies and attenuate above say 30kHz.

As for removing / improving the 'noise floor' - well I think we all know that's not really going to happen, unless they are used by someone living directly adjacent to a LW transmitter! (In which case you'll want a low pass filter).

'Noise floor' sounds like low frequencies to me, like the 'rumble filters' you use to use on old turntables. So attenuating <50Hz (thus high pass), anything higher you'd notice a loss of bass.

It's unlikely an regular amplifier would output anything as high as 30KHz anyway to be able to filter.

[TonyRPH]

qube_TA said:

TonyRPH said:

qube_TA said:

TonyRPH said:

Yet more...

£237 buys you a pair or cylinders probably containing little more than a capacitor and resistor - possibly an inductor too.

But I'm betting they are nothing more than a low pass filter.

If they're removing the 'noise floor' then they're more likely to be high pass filters.

High pass means they would likely provide attentuation in the audio band, which you wouldn't want surely.

By "low pass" I meant that they will pass audio frequencies and attenuate above say 30kHz.

As for removing / improving the 'noise floor' - well I think we all know that's not really going to happen, unless they are used by someone living directly adjacent to a LW transmitter! (In which case you'll want a low pass filter).

'Noise floor' sounds like low frequencies to me, like the 'rumble filters' you use to use on old turntables. So attenuating <50Hz (thus high pass), anything higher you'd notice a loss of bass.

It's unlikely an regular amplifier would output anything as high as 30KHz anyway to be able to filter.

I think the idea is that these devices try to prevent HF ingres into the amplifier (and hence it's feedback loop) via the speaker leads.

If you play SACDs, it's likely you will see harmonics at 30kHz + too, so a (wideband) amplifier will be quite capable of outputting ultrasonic frequencies.

Poorly designed DACs can also be responsible for HF noise.

But any filtering is better done at the input to the amplifier, as at that point it is still low in amplitude, and will not place any excessive load on any preceeding stages.

However, filtering on the output is never a good idea, as that's a very quick way to overload an amp, although the Zobel network (if one is present) would usually destroy itself in the the presence of high amplitude HF signals.

ETA: I just re-read your post and I see what you're getting at now - so the devices that are the subject of the original post could have a capacitor in series, to roll of the LF response (and hence high pass!)

I misunderstood you - sorry.


ETA (again) looking at your profile - you used to work with my son Keith - I kind of know you lol.

Edited by TonyRPH on Friday 22 August 19:48

[Mr2Mike]

qube_TA said:

'Noise floor' sounds like low frequencies to me,

The noise floor of a system is simply the sum of all the relevant noise sources within that system. In a simple analog system, signal levels that fall below the noise floor are not audible. The spectrum of the noise floor will depend entirely on the noise sources, you can't say that it is dominated by low frequency noise without further information.

[S6PNJ]

Whilst looking for some headphones, I came across a website offering a 13A fuse for a standard plug - only £59.99! I'll take a dozen and do the whole house! http://www.analogueseduction.net/category-699/syne... and they use quantum tunnelling!

[FredClogs]

S6PNJ said:

Whilst looking for some headphones, I came across a website offering a 13A fuse for a standard plug - only £59.99! I'll take a dozen and do the whole house! http://www.analogueseduction.net/category-699/syne... and they use quantum tunnelling!

I'm pretty sure there must be laws against this sort of stuff?.

I might knock out a strongly worded email to trading standards.

[gizlaroc]

FredClogs said:

I might knock out a strongly worded email to trading standards.

Jesus wept!!!

[Zod]

I'm just amazed that they haven't yet come up with canisters of specially treated air to improve the purity of the sound waves on their path from speaker to ear. Surely that is a huge gap in the market.

Damn, I've given away a money-spinning idea!

[probedb]

FredClogs said:

I'm pretty sure there must be laws against this sort of stuff?.

I might knock out a strongly worded email to trading standards.

I'm pretty sure some cable companies have been taken to TS and had to change their adverts. 'Audiophile' companies just try to get away with whatever.

[itannum990]

Zod said:

I'm just amazed that they haven't yet come up with canisters of specially treated air to improve the purity of the sound waves on their path from speaker to ear. Surely that is a huge gap in the market.

Damn, I've given away a money-spinning idea!

Surely the answer is to seal the listening environment with air doors, keep the area at a constant temperature, humidity level and air pressure and work out an ideal macro for the proportion of components of air to allow for undiluted audio quality whilst still allowing life.

Come to think of it, this might actually work. And looking at the prices for some of the st of this thread, so fkers might actually stump up!

Partnership Zod?

[Crackie]

Zod said:

I'm just amazed that they haven't yet come up with canisters of specially treated air to improve the purity of the sound waves on their path from speaker to ear. Surely that is a huge gap in the market.

Damn, I've given away a money-spinning idea!

Spiked listening shoes are the way forward..........

[jmorgan]

Crackie said:

Spiked listening shoes are the way forward..........

Golfing gear has a use?

[Mr2Mike]

itannum990 said:

Surely the answer is to seal the listening environment with air doors, keep the area at a constant temperature, humidity level and air pressure and work out an ideal macro for the proportion of components of air to allow for undiluted audio quality whilst still allowing life.

And then wait for it to fill up with audiofools before sucking all the air out...

[ladderino]

Zod said:

I'm just amazed that they haven't yet come up with canisters of specially treated air to improve the purity of the sound waves on their path from speaker to ear. Surely that is a huge gap in the market.

Damn, I've given away a money-spinning idea!

I'm actually a bit surprised that I haven't yet seen a similar magic spray to improve wireless internet, audio streaming, etc.

Presumably the compression used for transmitting wireless signals means it's suitable for those of us with cloth ears only.

[THX]

I recently put my sixty quid Sony in-ears through the wash, killing them (they'd actually survived a couple of previous washes)

So now I'm having to make do with my forty quid Sony's.

In all honesty, the difference is... Actually massive. The cheaper pair sound ste; same volume but screams at you, no clarity, poor bass response.

Just to offer some balance to this thread. I'm a big fan of putting down audio snobs, but when it comes to inner-ear headphones, there's a real difference.

Oh and BTW... My sixty quid Sony's sounded a st ton better than my £300 Shure's. Which currently reside in a box under the spare bed. Waste of money.

[Bullett]

ladderino said:

Presumably the compression used for transmitting wireless signals means it's suitable for those of us with cloth ears only.

You mean some sort of hi-fi-wi-fi?