Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp - Page 593

Hi guys i haven't posted on this thread in ages! I thought id share my thoughts on the Audio GD op amps. I ordered the earth, moon and sun to try out in other amps i have. I must say, i tried them in the dac section of the zero and the sound is much better than the opa 627's on browndog i was using. So far i think my favorite is the moon op amp. I'm a big fan of valve amps and to me this sounds the smoothest and valve like. It is very hard for me to pick one over the others, they all sound way better than the 627 and even the lm4562. The only downside is fitting it in the case, they are a bit big.

How and where did everyone else ground theirs? I might just drill an new hole for it. Has anyone else modded any other bits to go with the op amps? Please excuse me if its mentioned before in one of the previous 590+ pages. I don't want to go searching through them all, i will be here for days :0)

Good deal. Get 200mm Extension wires from Audio-GD.

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How many of the Audio GD HDAMs would I need, and which one should I get?

1) Need for what?

2) Read

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i want to ask, since i have a Musiland Md-10 running for my headset and this came with raving reviews i was wondering

how woulud this fit in my system now? is my musiland as good as this lol (i doubt considering the reviews that go with this now)

owh im going to use HD650's

Right, finally received my Zero today (despite it being Easter monday.....)

First impressions of the unit is that it looks well built. Quit a bit of heft to the unit, and everything feels pretty good. Power switch seems to get stuck when trying to turn it off, but nothing major.

Listening through my Pro 900s and my Computer (Connected via the included USB to optical converter), the sound is a bit harsh and unrefined at the moment, but I'll let it burn in for a little while. Nice, lively vocals, deep bass and a rather good soundstage.

Can't wait to swap in some op-amps and experiment

I have the LT1364 in the headphone amp and LM4562 in the DAC section.

Is it ok if they run a bit warm? The LT in particular seems to be a bit warm to the touch, but its not burning hot.

The Headamp rns hot, that's why it has the vents in the case. That Chip is the hotter of the OPAmps. It's all good...

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Awesome, just making sure I haven't stuffed anything up.

The LT1364 + LM4562 combo is excellent. Very musical, but not overly bright for long listening sessions.

Hello,
I have bought mine with HDAM on ebay on November.
Yesterday I was listening musing, then suddenly no sound.
Nor on headphone and line out.
I can ear the relay click when input signal is detected but no sound.

Any idea of what is the problem ?
Coul it be the Hdam that is out of order ? or something more serious ?

Thanks for your help

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Do you still have the original opamp? That'd be a good way to test...

Yep, I have it and same problem...
I don't know if Lawrence will accept to send me another mainboard....
I have a little electronical skills, but without knowing exactly what part to change I can't repair myself...

Yep, I have it and same problem...
I don't know if Lawrence will accept to send me another mainboard....
I have a little electronical skills, but without knowing exactly what part to change I can't repair myself...

Yep, I have it and same problem...
I don't know if Lawrence will accept to send me another mainboard....
I have a little electronical skills, but without knowing exactly what part to change I can't repair myself...

We heard you the first 2 times!

Do you have a set of PC speakers or another headphone amp?

Try to Run off the DAC output to see if it is the Head amp or the DAC that has the problem.

Are you using a Sound Card, make sure it works, your headphone works, etc. Have you done anything to the Zero recently?

It seems strange you would ask if you had done anything wrong, got an answer, then something goes wrong??

Are you telling us EVERYTHING?

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