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So, the Objective2 headphone amp - designed entirely around the measurements? (PLEASE READ RULES... - Page 3  

post #31 of 1042
Quote:
Originally Posted by Willakan View Post

Whilst a point to point circuit hugely simplifies things in some ways, there are still various concerns to deal with (parasitic capacitance ect) but it is a relatively simple design and you seem to know exactly what you're doing.

You have to measure it after you're done thoughwink_face.gif


Somewhat critical in a direct coupled amp, but not so much in the O2 with it's caps left right and center. tongue.gif

 

Ahahah I don't have any fancy measurement gear, but I'll be sure to do what I can when it's done. wink.gif

post #32 of 1042

I think it sounds like a pretty tempting design, and for a similar price as a CMOY design, or some of the Fiio amps that have been pretty well reviewed I'll probably plan to make one once the boards are available.

post #33 of 1042

i also will get one of these built since i have no experience with DIY.  i was looking for an amp that i can just turn on and go with.  warming up tubes and how hot it gets in my room is not something i want all the time... just almost all the time.

post #34 of 1042

I will definitely be building one of these.

post #35 of 1042

Funny that this thread is in "sound science". It's where unwanted things go to die here usually, no? I thought a regular amp with inputs, outputs, and volume control would go in a less shunned section of the forums.

 

Either way, I'm looking forward to building my own.


Edited by dfkt - 8/8/11 at 6:16pm
post #36 of 1042
Quote:
Originally Posted by dfkt View Post

Funny that this thread is in "sound science". It's where unwanted things go to die here usually, no? I thought a regular amp with inputs, outputs, and volume control would go in a less shunned section of the forums.

 

 

The designer is apparently not very welcomed here.  /not saying more

--

 

It got moved!

post #37 of 1042

It was posted by the OP in Sound Science originally. It's a DIY amp so I moved it to DIY.  You guys need to try harder with your conspiracy theories. evil_smiley.gif

post #38 of 1042

No conspiracy theories there. Pure (objective!) facts. wink_face.gif

post #39 of 1042
Thread Starter 

The DIY forum is where I should have probably posted this initially. Let's not go over the top.

Anyways, PCB and front-panel files should be released this week (Weds). Anyone planning on getting their own board made?

post #40 of 1042

Interesting design... are there really 2 channels of an opamp running in parallel for each of the 3 channels in the design, including ground?! That's a first. :P

 

Cool regulated power supply design.

post #41 of 1042
Quote:
Originally Posted by FallenAngel View Post

Interesting design... are there really 2 channels of an opamp running in parallel for each of the 3 channels in the design, including ground?! That's a first. :P

 


There is no ground channel. 

 

Jan meier did the paralleled opamp thing a long time ago with his 50W all opamp amp. the CHA-47 is also kind of similar. 

http://gilmore2.chem.northwestern.edu/projects/showfile.php?file=meier3_prj.htm

 

I dont really see how this amp measures significantly better than a pimetaV2, so why do we need new? if the point of a measurements first amplifier is measurements first... shouldn't they come first?

post #42 of 1042
They came first.
post #43 of 1042

Can you build those for 30 bucks tho?

post #44 of 1042

 

Quote:
Originally Posted by Satellite_6 View Post

Can you build those for 30 bucks tho?


Excluding the cost of the enclosure and not populating the ground channel? probably. 

post #45 of 1042

I should really get into DIY then!


Edited by Satellite_6 - 8/9/11 at 1:34pm
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