Crazy But Not So Crazie Idea.......

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"

 

Sounds good as long as you remember that a camel is a horse designed by a committee!

 

of course, i have done it before for well known manufacturers, this is not a trojan horse, a commitee we are all equal to the project,

 

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

 

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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?

 

input sensitivity for full output 8 volts+

 

The best pre-amp is no pre-amp, they do nothing but get in the way of the music.

 

not enjoying music? how do you amplyfie music? the only thing that gets in the way of music it's 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,

 

I like the idea and would be interested in ZG kit in my rack

 

good, so would i, i will just wait as to who will venture in to this project, if everyone can so can we at ZG,

 

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 I were to buy a new pre-amp today I'd want it to have a super good DAC built in, as well as parametric EQ. Since I only use digital sources though, it's pointless to me so I'll continue using the DEQ2496.

 

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,

 

Why do they have to be in a different unit? 2 PEQ seem the perfect thing for sorting out room mode problems.

 

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.

 

You don't enjoy music by polluting it and FF'ing it up.

 

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.

 

i have a prototype without tone controls and it does not **** up music, it creates a musical atmostphere, how ever richard we are all boys playing with toys,