Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp
New Posts  All Forums:Forum Nav:

Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp - Page 75

post #1111 of 9226
1/28/08 at 5:25am
<removed>
Reply
post #1112 of 9226
1/28/08 at 7:52am
Just another question, how do you change the opamps? Does it involve advance stuff like soldering or is it just more like changing RAM on a PC motherboard plug n' play?
Reply
post #1113 of 9226
1/28/08 at 8:02am
<removed>
Reply
post #1114 of 9226
1/28/08 at 9:40am
Thread Starter 
Quote:
Originally Posted by charley phogg View Post
Yes, thanks for the explanation. I guess I have always assumed that since it had a DAC on board the amp would use it.... we all know what assuming gets you .
Ya, my favorite is ASSuming.
Reply
post #1115 of 9226
1/28/08 at 9:43am
Thread Starter 
Quote:
Originally Posted by magnetiq View Post
quick question, can you use the RCAs to connect to the source and still use it as a headphone amp?
Nope, sorry. The RCA's are DAC output only. There is no by-pass. So this makes the Zero a "digital only" on inputs, which fits the majority of user's needs. Have a good one!
Reply
post #1116 of 9226
1/28/08 at 9:47am
Thread Starter 
Quote:
Originally Posted by Gaco View Post
Just another question, how do you change the opamps? Does it involve advance stuff like soldering or is it just more like changing RAM on a PC motherboard plug n' play?
snip
The Opamps are in sockets, so you pull one out, push one in. Very easy.
Reply
post #1117 of 9226
1/28/08 at 10:03am
Thread Starter 
Thank you for fixing this! and lets get on talking about the Zero's!
Reply
post #1118 of 9226
1/28/08 at 10:06am
Quote:
Originally Posted by Penchum View Post
The Opamps are in sockets, so you pull one out, push one in. Very easy.
Oh... :/

Damnit I should payed more attention to your extensive talk about the opamps, didn't know it was that easy!!

Btw is the opamps used in the DAC, amplifying or pre-amp process? Man I truly an a noob at this still
Reply
post #1119 of 9226
1/28/08 at 10:10am
Thread Starter 
Quote:
Originally Posted by ptiJean View Post
<removed>
Thanks very much ptiJean! PM me and let me try to help with your situation, Ok? Thanks!!
Reply
post #1120 of 9226
1/28/08 at 10:13am
Quote:
Originally Posted by Penchum View Post
Thanks very much ptiJean! PM me and let me try to help with your situation, Ok? Thanks!!
You're a nice guy, I respect that!
Reply
post #1121 of 9226
1/28/08 at 10:13am
Thread Starter 
Quote:
Originally Posted by Gaco View Post
Oh... :/

Damnit I should payed more attention to your extensive talk about the opamps, didn't know it was that easy!!

Btw is the opamps used in the DAC, amplifying or pre-amp process? Man I truly an a noob at this still
Actually, I'm not sure which "term" is used, because some of them have a pretty high output. I'm going to guess pre-amp process. Can someone correct me, if needed?
Reply
post #1122 of 9226
1/28/08 at 10:32am
Thread Starter 
Quote:
Originally Posted by Gaco View Post
You're a nice guy, I respect that!
Thanks! I PM'd you too.
Reply
post #1123 of 9226
1/28/08 at 11:53am
Oh forgot to ask how many opamp slots are there? Just two right? Otherwise the amount of combinations would explode exponentially, that wouldn't be nice =/
Reply
post #1124 of 9226
1/28/08 at 12:09pm
Thread Starter 
Quote:
Originally Posted by Gaco View Post
Oh forgot to ask how many opamp slots are there? Just two right? Otherwise the amount of combinations would explode exponentially, that wouldn't be nice =/
There is one Opamp for the DAC section. There are two Opamps in the Headphone board, L&R. We discovered some time ago that changing the DAC Opamp will change the sound of the DAC output and the headphone output.
If you change Opamps only in the headphone board, it will change only the output at the headphone jack.

So, when I was trying different combinations, I was indeed trying different combinations. That chart represents the better part of a long day! But, I think it will help some folks.
Reply
post #1125 of 9226
1/28/08 at 12:20pm
Quote:
Originally Posted by Penchum View Post
There is one Opamp for the DAC section. There are two Opamps in the Headphone board, L&R. We discovered some time ago that changing the DAC Opamp will change the sound of the DAC output and the headphone output.
If you change Opamps only in the headphone board, it will change only the output at the headphone jack.

So, when I was trying different combinations, I was indeed trying different combinations. That chart represents the better part of a long day! But, I think it will help some folks.
Ok. But since your chart shows combinations of two opamps at once, one DAC one Amp, you must have held one constant on the headphone board if it had two slots?
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › Review: ZERO 24 BIT/192KHz DAC/Headphone Amp/Pre-Amp