Thanks all, for the kind words! To answer your questions...
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Originally Posted by FunkFaker what price point are we looking at? |
Eisen Audio prices are discussed
here. I quote custom modules upon request. If building your own, one or two at a time, the total parts cost per channel can vary quite a bit. New discrete op amps range from $45 to $85 USD each, new input transformers from $20 to $75, and new output transformers, if you use one (you can run the output unbalanced instead), from $15 to $70 USD. In any case the cost of accompanying passive components (resistors and capacitors) shouldn't exceed $5 per channel. Brad McGowan's average of $250 per channel sounds about right when you factor in the
minimal kit and shipping costs from various vendors.
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Originally Posted by not_so_new I think there is a big market for a DIY 500 series mic pre but I think there is an even bigger market for an EQ. EQ would be my first call anyway, any chance of that happening? |
I admit, I started working on this project a year ago and am a little late to the table. I felt it was becoming trivial to try and differentiate, commercially, between so many 500 mic pres all (except for the biz and the buzz) sharing essentially the same design. This particular circuit is so simple (only one op amp!), why not just offer a universal template to be completed any way you please?
Equalizers, on the other hand, have the potential to be much more complicated (and expensive!), containing up to 6 active stages and the plethora of passive components that follow. Granted, I think I'd have a difficult time trying to offer an open-ended DIY EQ, especially something as easily accessible.
However,
designing a 500 Series EQ is part of my long-term agenda and
I'd love to hear your specific suggestions. I suppose once a concrete design was settled on, it would not be difficult to offer complete, user-assembled kits. Is this what you're all asking for? In the mean time, I need to finish my discrete op amp and transformer designs so that Eisen can offer complete mic pre kits.