Anyone familiar with ART DI/O...?

I'm awaiting the return of my fully modified Di/O, which should make it's way home soon. I've heard a few fully modified Di/O's and I have to admit that the modified unit could be stuffed into a better looking chassis and be sold for much more.

I haven't the experience as Mike does with other high end DAC's, being new to the digits game. I can tell you that as a guy that listens primarily to master dub reels on a fully modified Scully 270, that I'm impressed with the modified Di/O and that the mod'ed unit is completely different.

Hi Albert,

I got the full modification for $140.00, complete with op-amp change to LT 1365, Schottky diodes, installing sockets for the op-amps (so future op amp changes are done easily), changing the digital input resistor from 100 ohm to 75 ohm, output cap by-pass, RCA jacks, padding down the output from 7 volts to 2 volts, etc., (the works). (By the way, I may be forgetting some of the mods). I will give the gent's info once he has stocked up on parts, which should be within a week or less. (I promise).

I have NO monetary income by mentioning this, I'm just passing along info on decent mods at a great price. Some well known guys are charging $179.00 just for RCA's and diodes! Others that I've found, $250.00 to $350.00 for the full set of mods, minus the output padding.

I have heard the fully modified unit, and the improvement is huge. If you buy the unit from www.fullcompass.com for $122.00, then pay $140.00 for mods, your into it for less than $300.00 with shipping to your house, to get mods, and back.

One mod that I had forgot (included in the $140.00 mod mentioned above), included a socket for the D to A chip also, so that the chip may be removed during playback only, thus isolating the A to D circuit. That way, the digital outputs don't need to be shorted, etc. It also would reduce the amount of power supply drain to that circuit, which may have an effect on the power supply available for the DAC circuit.

Hello Sedond,

I've shorted out the analog inputs, internally, the day that I got the unit. I had mentioned disabling the A to D entirely by disabling the chip, (removing it). Everyone knows that they need to remove the tube for playback (allowing more P.S. for the playback, DAC), this just takes it one step further. No need to feed the chip that you aren't using for playback.

Why short out the circuit and drain the PS, when you can cut the source without? Might mean more PS available to the DAC circuit?