I wanna buy a kit but cannot build it. HELP!

[dwdrummer0]

Hey guys. Im planning on buying 4 N72's , 2 A12's and 2 J99's. Im really excited about it and cant wait to set everything up but theres one thing... I have noo idea how to build it and what exactly to get. I am a definate beginner and my worst fear is that I would buy everything and ruin it by trying to build it myself. If anyone knows someone that would build the pres I could do the rest (looks like your puttin a computer together..kind of). One other thing is that what is a om-amp and what pres would I need to buy them with.

[tele_player]

I don't see the problem - 7th Circle offers all the preamps completely assembled. It costs about $175 per channel plus $200 for the chassis/power supply assembly, on top of the kit prices (last time I checked).

So, I just totalled up what you'd need on the 7th Circle order page and it comes to $3946 (plus shipping and tax, if applicable). This would include everything except op amps for the J99 modules. I'd use Hardy 990c modules, which are $50 each direct from Hardy. Two per J99, so that's $200. Grand total: about $4146. The op amps for the A12's are included in this price, and no op amps are used on the N72's.

Of that total, $1600 is assembly.

What is an op amp? Well, the term refers to an 'operational amplifier', which means the transistors, resistors and capacitors required to produce a working gain stage, requiring only input, output and power hookups. (This is a slightly simplified explanation, but close enough)

Solid state op amps can be divided into two basic categories: discrete, where the module is made up of individual components, usually assembled in a small package (about 1.5" square), or monolithic IC, where all the parts are done in silicon (or something similar), assembled in a much smaller package that looks like a computer chip.

The A12 and J99 use discrete op amps. Seventh Circle sells one that's appropriate for the A12; Hardy sells the 990c which is appropriate for the J99.

[dwdrummer0]

The thing is that I cant afford the $1600 they charge for installing everything. Thats why I wanna do it myself. Trust me If I had the money, Id have them install everything.

[Sean Halley]

Then - technically - your post should have read:

"If anyone knows someone that would build the pres FOR FREE then I could do the rest, etc"



See? Different post.


You say you "wanna do it yourself", but you really want someone else to do it for you.

Save up for the assembled kits and call it good - you'll be happier.

S..

[cominginsecond]

I was a complete newbie and I did an A12. It was definitely doable.

Do some research on the web on soldering and then take the plunge. You won't regret it.