Does anyone know much about AGI preamps?


I have had an AGI 511 pre-amp for some time and I love its supreme build quality and transparent nature. I just can't find any info on the darned thing. I know the company went out of business in the 80's, but there is not a shred of evidence of their existence on the web. I can't find any specs on the thing. I have only seen two others go for sale ever; they seem pretty rare. If anyone knows where I can get some info, or knows anything about the preamp, it would be appreciated. Thanks.
geojap
Jay, i also forgot to ask if you are taking advantage of the phono section in this preamp ??? If not, i would HIGHLY suggest investing in a GOOD yet basic TT and giving it a try. You might be AMAZED at how good vinyl sounds via a well set-up system that doesn't have to cost a fortune. Sean
>
Sean, yes, I have used two of my TT's with the AGI so far. A Technics SL-D2 and a Pioneer PL series (either a 550, 560, or 570, I can't exactly remember which I've got back there rtight now). I do very much like the way vinyl sounds on it, but I have spent more time putting together a DIY record vacuum than listening to vinyl lately. After I've cleaned a few records I'll give it a critical listen. Are there some better TT's you could recommend? I love auditioning and looking at new stuff. I've considered looking into the Thorens TD-124. Someone here in Austin who owns a hi-fi shop talks about them like they have all been touched by King Midas. Thanks very much, Jason.
Without getting into more expensive TT's, the one that comes the most highly recommended for the cash seems to be the Well Tempered system. Since i don't have first hand experience with this piece, i'm simply repeating what i've been told by people that i trust ( hardcore vinylphiles ). Other than that, you could probably step into a reasonably priced Thorens, AR, Rega for not that much and notice an appreciable difference. Just make sure that the arm is properly set up and the cartridge is a good choice for the design / mass of the arm.

Be careful here, as i've had "reputable shops" sell and install cartridges that WERE NOT compatible with the arm that was on the table. I simply followed their suggestion and left it up to them to install it. Prior to use, i read the cartridge manufacturers recommendations for proper set-up. What i found was that the cartridge that they had recommended and installed would never work properly in that arm. Needless to say, i had to return it. They were pissed to say the least, but they took it back with a $50 "labor fee". If you think that they were "pissed", they should have tried to see my point of view. After all, it was THEIR fault. They made the suggestion, they sold me the wrong component, they installed it. All i did was listen to the "self appointed" expert and "get taken" while forking over the cash. Never again...

Do you know what phono stage you have in your AGI ??? David made three different versions with various amounts of gain. If you can look inside, i can walk you through telling which one you have. You really do need to know this in order to select a cartridge with the proper output level.

You might also want to see if the previous owner had added resistors / capacitors in order to fine tune the loading characteristics for a specific cartridge. If so, you can take them out. It might help the combo that you currently have to sound even better. Sean
>
Sure, I'm game to to try looking at the phono stage. If you'd like to email me, it's geojap@hotmail.com.
Thanks,
Jason