hi rob,simon and bottleneck and others, what i have in mind is for us at ZG to make and design a unique pre-amp that has both facilities , tone controls that can be activated as used or by-passed, and i have diagrams on circuit devices, then if we can come together to create this beast we can market it as "THE ZERO GAIN REFERENCE" vews please, i think we can, no DO NOT CONTACT THE MENTAL HEALTH SERVICE"
Crazy But Not So Crazie Idea.......
- Thread starter nando
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Sounds good as long as you remember that a camel is a horse designed by a committee!
This has tone controls, and it would take a lot of work to come up with something as good.
http://www.cambridgeaudio.com/summary.php?PID=286&Title=Azur+840E+pre+amplifier
http://www.cambridgeaudio.com/summary.php?PID=286&Title=Azur+840E+pre+amplifier
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simon, that is a toy,think of a mega pre-amp with seperate dual psu capable of powering both tone section and pre-amp by-pass in such specs as let's say maximum output voltage 32 vms,
thd: plus noise 20hz to 20khz,
0.0035% typical
signal to nise ratio >119 db
overload margin 31db, with an output inpidance of 600 ohns plus, let's sayfrequency response from 5hz to 50khz with out slope on tone controls?
simon, that is a toy,think of a mega pre-amp with seperate dual psu capable of powering both tone section and pre-amp by-pass in such specs as let's say maximum output voltage 32 vms,
thd: plus noise 20hz to 20khz,
0.0035% typical
signal to nise ratio >119 db
overload margin 31db, with an output inpidance of 600 ohns plus, let's sayfrequency response from 5hz to 50khz with out slope on tone controls?
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The best pre-amp is no pre-amp, they do nothing but get in the way of the music.
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think of this richard, a pre-amp that has both outputs valve and s.s. and as you know from recording studius has also a panorama control, after all people out there would like to listen to music how they wish to in the way they will enjoy, i think we can do it do you not think so? however if no one comes onto this crazy project i will do so,
think of this richard, a pre-amp that has both outputs valve and s.s. and as you know from recording studius has also a panorama control, after all people out there would like to listen to music how they wish to in the way they will enjoy, i think we can do it do you not think so? however if no one comes onto this crazy project i will do so,
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I like the idea and would be interested in ZG kit in my rack
RobHolt
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I think it depends what you want.
If you want the cleanest transfer then a simple passive has the best chance of delivering that so long as the rest of the system allows it to work, so low source impedances, high load impedances, plenty of amplifier sensitivity and low capacitance screened interconnects. In that situation passive is superb - and I mean simple pots and attenuators, not transformer devices.
But if you want something more universal and something that can suit a wide variety of equipment, perhaps you need some gain, variable input and output options and like tonal control then active is clearly the way to go. Then make it the best circuit possible.
Not sure a forum should put its name on equipment - though 'ZeroGain' as a brand does have a nice look to it
It certainly isn't difficult to recreate a Quad style 'tilt' unit at passive line level, perhaps with a switchable buffer stage. I have a circuit here that was published in HFN many years ago.
If you want the cleanest transfer then a simple passive has the best chance of delivering that so long as the rest of the system allows it to work, so low source impedances, high load impedances, plenty of amplifier sensitivity and low capacitance screened interconnects. In that situation passive is superb - and I mean simple pots and attenuators, not transformer devices.
But if you want something more universal and something that can suit a wide variety of equipment, perhaps you need some gain, variable input and output options and like tonal control then active is clearly the way to go. Then make it the best circuit possible.
Not sure a forum should put its name on equipment - though 'ZeroGain' as a brand does have a nice look to it
It certainly isn't difficult to recreate a Quad style 'tilt' unit at passive line level, perhaps with a switchable buffer stage. I have a circuit here that was published in HFN many years ago.
good rob, let us create the knights of the round table, i have all the diagrams on all designs to make it happen it is not going to be a picknick neither a quick doing , it will take most of our minds together to create this MASTER PIECE, i think we can do it,what do you think? i have both schematics on slope para mets on co-ordination to conbine a third ussuable pre-amp, it is not going to be small, it can not be, phono stage will be sepeate,
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simon, parametrics eq's have to be in a different unit i.e. via loop, a third of an octave wave cut in all frequencies will need a very little but large box unit of it's own ,k like the old goodmans galaxtron,
simon, parametrics eq's have to be in a different unit i.e. via loop, a third of an octave wave cut in all frequencies will need a very little but large box unit of it's own ,k like the old goodmans galaxtron,
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A pre-amp is unnecessary extra clutter in the signal path, all you need is a volume control and maybe a rotary switch if you have few inputs. The extra gain can be put in the power amp or in the source.
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You don't enjoy music by polluting it and FF'ing it up.
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Why do you think it would be a master piece, have you heard it, if not you cannot judge by the circuit what it will sound like.
