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Oritek OMZ DAC Sound quality check ... - Page 2

post #16 of 74
OMG, I don't realize there is a headphone jack on back panel!
So this is the new headamp unit that just recently introduced by Ori?
I thought you can use it as stand alone amp with external source connected? and where is the gain switch?
post #17 of 74
Yep, that's the unit alright I have an identical one sitting on my desk.

On the right hand side of the output RCA there's a toggle switch which has 3 positions:

High = High Gain
Middle = bypass DAC stage, uses the RCA output as input
Bottom = Low Gain
post #18 of 74
Well, all this talk has stirred me up enough to touch base with Ori to get my OMZ2.5 (rev 2) upgraded, with rev 4 output and the new headamp.

We exchanged a couple emails, and the amp sounds like it's a nice amp and can drive many a phone, to complete an incredible al-in-one package.

My other OMZ (rev 4) is based on the Zhaolu 2.0, so it doesn't have room to upgrade it with the headamp. But tha's OK, it's in a non-headphone system anyway

Looking forward to the upgrade!
post #19 of 74
How much do these cost roughly? (DAC w/ headamp)

Rather not bother Ori, he's probably really busy.
post #20 of 74
Ask him directly, he's a friendly guy
I do learn a lot from him, and I might pull the trigger, then get the DAC/Amp after I finish recabling my K701.
post #21 of 74
Oritek Audio - Zhaolu D2.5A DAC modifications page

best to email/PM him though as he does customisations too
post #22 of 74
Thanks for the link.
What is the exact naming/spec for the transformer?

I could mod one into my D2.5...
post #23 of 74
Quote:
Originally Posted by udo View Post
Thanks for the link.
What is the exact naming/spec for the transformer?

I could mod one into my D2.5...
mine is blank, has nothing written on it. i could measure the output... but that could be that he had to use a different one cos i'm on 240v
post #24 of 74
Quote:
Originally Posted by udo View Post
Thanks for the link.
What is the exact naming/spec for the transformer?

I could mod one into my D2.5...
here you go, a picture if it helps any...

post #25 of 74
Quote:
Originally Posted by d-cee View Post
mine is blank, has nothing written on it. i could measure the output... but that could be that he had to use a different one cos i'm on 240v
It's the same transformer. Ori told me that all he had to do was change one connection to change the Zhaolu from 120V to 240V.
post #26 of 74
Thread Starter 
I just put my Ori on Tripplite LC1800 Line Conditioner (Ori told me to do that) and it's MUCH better.

Dynamic, Details, soundstage (depth) it's a nice upgrade.

I will continue to test tomorrow .. so far, I am very pleased with this change ...
post #27 of 74
Can someone here who own OMZ v4 with new Headamp unit, write a short review about the amp? I need confirmation before I make a purchase
post #28 of 74
hm..... mine comes without the internal amp (therefore no volume control knob). Guess mine is Version 3 ?

post #29 of 74
I'd like to know if someone experienced improvements in sound between the v2 and the v4 DAC-only unit.
post #30 of 74
I currently have the headroom microdac and was wondering if there is any noticeable improvements with the OMZ v4, if so, how much and is it worth looking into replacing?
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