[wal]

Hello chaps,
Thanks for the replies.
I've heard zilch from Headway. If they don't get in touch with me soon, I may digress further on the 'little arrangement' they came up with regarding their product and my well propagated website reviews!!

Since I sorted out the problems with the EDB-1, I have been quite pleased with it. Though it is a tad noisy still. I do think that they should have gone with 072s or better op-amps rather than the low currant 062s, though it probably wouldn't have been a battery powered unit. But there again, I suspect that not many users like the idea of having to use two 9v batteries either! I'm also not to keen on the included (noisy) switched-mode wall wart PSU!.. Like many things in life, I've found that the best way to do it, is to do it yourself.. I managed to design and hand build a clean (and quiet) 072 op-amp hi z preamp design to run from phantom power or battery at +- 4.3 volts, complete with a TI rail splitter to maintain a very symmetrical balanced output, even at low battery level, with plenty of headroom for those piezos which incidentally, can generate several volts if the bridge is banged against something! (a voltage clamping diode is required!). As Texas Instruments were kind enough to send me some free samples (including free priority UPS delivery from Thief River Falls, Minnesota), I also built the same design with a superb TI Burr-Brown OPA 2342. But this had to be powered from a battery, as the pitifully low currant provided by phantom power is not enough. Hats off to Baggs for designing the Para DI to run off phantom. But I'm guessing that this too, must be full of those noisy, low currant 062 op amps?
Regards to all,
Wal...