Think as said earlier theres many different ways of getting there. Not every way suits everyone or there would only be one manufacturer. Sure Jez would insist it be him;)
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Think as said earlier theres many different ways of getting there. Not every way suits everyone or there would only be one manufacturer. Sure Jez would insist it be him;)
Maybe we need a quantum attenuator - when you listen there's sound, when you don't there isn't...
That's my point.... Give it 10 years and it will be here.... Gain when a sensor merely looks at it...
I thought you'd bowed out of this thread and were avoiding it from now on?
Give it rest, FFS, and practice what you preach.. We all know your position *loud and clear*. Any more comments like that from you on this thread or anywhere else will result in a week's holiday.
I've had enough - and you've had MORE than enough chances to comply with what's required here!
Marco.
It's ok Marco, science (alchemy) was once hailed as witchcraft and look where we are now - the polar opposite view.
As an update I've been listening all afternoon, Cohen Some like it Darker (holy crap what a voice), FSOL, Yello Toy, Touch, One Second.
Two things, liquidity is back! This may be for two reasons, the new Cardas golden presence interconnect between Vida and Truth has burned in some, or the Truth has burned in some.
That later option seems a little strange as with no components in the signal path surely nothing can change? But the maker and users say that it does improve with use though he doesn't understand why. I guess it might be to do with power supply. scratch.
And the second thing... I've been using the Yello albums as a reference for electronica and have used them often this last week with the truth and heard many new things compared to the Slagles.
Well, tonight there's even more! Newly defined leading edges, subtle infections in vocal backing tracks, extra texture.
I remember a review (Salvatore) saying it had the power to surprise. Yes, it does.
My journey is at an end (for linestage at any rate!)
This week the Hashimito SUT arrives... What will that bring to the mix....
Those devices in the pictures sure look like LDRs to me.
The maker says he uses "photocells", and also says he doesn't use optocouplers.
Anyway, those devices in the pictures sure look like LDRs to me.
I'm still trying to work out what the clever concept is. It looks like buffer-attenuator-buffer, which is very ordinary. Ok, the attenuator uses an LDR, but that isn't new. Ok, the buffers are video buffers, but that doesn't qualify as a clever concept for me.
The Truth is active. And all active linestages will give less than unity gain if you turn the volume control down a bit.
There's loads of stuff in the signal path - a buffer, an attenuator and another buffer. Each of those buffers will contain so many active devices that you would look at a circuit diagram of its internals like this :stalks:
It's a very big world and there are so many people making audio equipment that it's extremely difficult to stand out from the crowd and get any sales at all, so I understand if someone tries to create some mystique about their unique circuit. Just take it with a pinch of salt, particularly any ideas about having nothing in the signal path.
With any luck this thread will have piqued somebody's interest enough to take a punt and in a month or so will be able to give their 'subjective' opinion. Then I won't feel so alone in my findings. I emailed the maker tonight and told him straight that after putting in another 7 hours listening today there was no f*cking way this was ever going back to him. I'm very very very happy right now and don't care what technology it uses, a rubber band and pixie dust, I don't care - it's just given me 7 hours of the most pleasurable listening I can remember.
It's easy ... no more confusion / obfuscation please.
Photocells have
2 legs, because the light source an LED making up the other two legs is not integral with the photocell.
There is no attempt at encapsulation removing interference ( other than the casework ) from outside light sources
Little overview of their audio characteristics very much related to the led/ photocell distance having to be manually set
Fail to have low resistance capability, hence require buffer circuits to function in an audio circuit.
Typically find use in street lamps and checkout counters, but extraordinarily are used here in an apparent good sounding
audio device.
LDR's (also known as Audiohm - for the very reason you present ) have
4 legs
LDR's are encapsulated meaning they are impervious to outside light interference and human touch or chemical degredation over time
LDR's also precisely define the light source LED distance to the resistive element
LDR's have a audio frequency and audio characteristic optimised photocell
LDR's have well tabulated audio performance characteristics including distortion measured
with the best circuit the manufacturer could provide about 10 years ago, ( subsequently IMO, I have realised far better )
resistance being from 40 ohms NSL32SR2( S)
-60 ohms NSL32SR3 and in the other direction NSL32SR2 5 mega ohms, to 20 mega ohms NSL32SR3
the NSL32SR2(S) similar to NSL32SR2
Ed, what is the current you are running to the photocell anode ? and what is the LED forward voltage - colour
As a peace offering, my own circuits use 7.5ma
Cheers / Chris