HeadRoom Micro Amp
post-1392052
Thread Starter
Post #1 of 12

RickG

Electrostatic Elvis
Joined
Aug 2, 2001
Messages
4,722
Reaction score
11
Joined
Aug 2, 2001
Posts
4,722
Likes
11
I'm thinking about ordering the HR Micro stack sometime in the near future. However, I've got a question in regard to the amp.

On the Micro Amp page...

http://www.headphone.com/products/he...-micro-amp.php

...you are given a choice of the "Micro Module" or the "Desktop Module".

What does this refer to? I can't find any other reference to these options on the site.
 
     Share This Post       
post-1392059
Post #2 of 12

mkozlows

100+ Head-Fier
Joined
Apr 12, 2005
Messages
294
Reaction score
85
Joined
Apr 12, 2005
Posts
294
Likes
85
The Desktop Module uses the same amp module that's in the Desktop Amp; it apparently sounds better, but gets about half the battery life.
 
     Share This Post       
post-1392065
Post #3 of 12

Salt Peanuts

Headphoneus Supremus
Joined
Mar 18, 2004
Messages
3,679
Reaction score
10
Joined
Mar 18, 2004
Posts
3,679
Likes
10
According to the site, Micro Amp uses AD822 as standard option while Desktop lineup uses Burr-Brown 2134.
 
     Share This Post       
post-1392074
Post #4 of 12

RickG

Electrostatic Elvis
Joined
Aug 2, 2001
Messages
4,722
Reaction score
11
Joined
Aug 2, 2001
Posts
4,722
Likes
11
Ahhh....

I missed it guy's. Thanks a million!

 
     Share This Post       
post-1392082
Post #5 of 12

S_Dedalus

1000+ Head-Fier
Joined
Jan 24, 2004
Messages
1,271
Reaction score
0
Joined
Jan 24, 2004
Posts
1,271
Likes
0
The desktop portable with dac option sounded really good. A completely different flavor, but definately in the same class as the Gilmore lite. SInce I didn't have my emu at the meet, I can only go by memory, but it seemed that the 0404 goes a little deeper into the music and has more energy, while the headroom dac is smoother and easier to sit back and relax with.
 
     Share This Post       
post-1392428
Post #6 of 12

elrod-tom

Moderator - Prefers "stereo weirdo" to "audiophile"
Joined
Jul 4, 2002
Messages
10,523
Reaction score
48
Location
I live in the midrange!
Joined
Jul 4, 2002
Location
I live in the midrange!
Posts
10,523
Likes
48
Rick,

I'm sending my Coda back and getting the desktop module installed...as soon as I get the word from Jamey that they are ready for installation.

I heard all of them at the meet, and while I like my current Coda, and enjoyed the Micro module installed in the Micro-Amp that I listened to there, I'm still going with the desktop module. I don't have any urgent need for true portability, as I use mine mostly at work with the power supplies. I'll trade battery life (it's supposed to be roughly half the Micro module's battery life of 20 hours) for performance on this amp and be glad for it.

BTW - you'll love the combo. It's a very well designed product...HeadRoom really did their homework on this one.
 
     Share This Post       
post-1392732
Post #7 of 12

RickG

Electrostatic Elvis
Joined
Aug 2, 2001
Messages
4,722
Reaction score
11
Joined
Aug 2, 2001
Posts
4,722
Likes
11
Thanks for the info S_Dedalus and Tom.

BTW, Tom, in this thread...

http://www5.head-fi.org/forums/showthread.php?t=120288

...you stated:

Quote:

Originally Posted by elrod-tom
I have the D-EJ1000, and it does a pretty nice job feeding the Overture DAC. It makes a HUGE difference over the audio output of the PCDP.


What exactly did you mean by "pretty nice job"? Are there any problems? I'll be using my Sony portables (D-EJ01 or D-NE10) with the stack.
 
     Share This Post       
post-1393346
Post #8 of 12

elrod-tom

Moderator - Prefers "stereo weirdo" to "audiophile"
Joined
Jul 4, 2002
Messages
10,523
Reaction score
48
Location
I live in the midrange!
Joined
Jul 4, 2002
Location
I live in the midrange!
Posts
10,523
Likes
48
Quote:

Originally Posted by RickG
BTW, Tom, (regarding use of the optical out on a Sony D-EJ1000 with the HeadRoom Overture), What exactly did you mean by "pretty nice job"? Are there any problems? I'll be using my Sony portables (D-EJ01 or D-NE10) with the stack.


What I mean is that it's not quite up to the level of a decent CD player/transport. I mean, it's a tiny little portable thing...it's sooooo cute!!

Seriously, the difference in sound quality with the Overture vs the line out on the CD player is like night and day. I'm very pleased, though I think that my iRiver iHP-140 optical out sounds better. I suspect it's got something to do with jitter, but that's just a guess.
 
     Share This Post       
post-1393362
Post #9 of 12

RickG

Electrostatic Elvis
Joined
Aug 2, 2001
Messages
4,722
Reaction score
11
Joined
Aug 2, 2001
Posts
4,722
Likes
11
Cool! Thanks Tom.

I placed my order for the Micro amp/desktop module and Micro DAC this morning.

The long wait is on...

 
     Share This Post       
post-1393411
Post #10 of 12

S_Dedalus

1000+ Head-Fier
Joined
Jan 24, 2004
Messages
1,271
Reaction score
0
Joined
Jan 24, 2004
Posts
1,271
Likes
0
Quote:

Originally Posted by elrod-tom
What I mean is that it's not quite up to the level of a decent CD player/transport. I mean, it's a tiny little portable thing...it's sooooo cute!!

Seriously, the difference in sound quality with the Overture vs the line out on the CD player is like night and day. I'm very pleased, though I think that my iRiver iHP-140 optical out sounds better. I suspect it's got something to do with jitter, but that's just a guess.



I spent about an hour switching between a known bit-perfect optical out, and the usb interface, and there is a difference. Its not huge, but it is there. I think the decrease in sound quality with kmixer has been exagerated, and that it really depends on what the card itself does with the signal.
 
     Share This Post       
post-1393416
Post #11 of 12

elrod-tom

Moderator - Prefers "stereo weirdo" to "audiophile"
Joined
Jul 4, 2002
Messages
10,523
Reaction score
48
Location
I live in the midrange!
Joined
Jul 4, 2002
Location
I live in the midrange!
Posts
10,523
Likes
48
Quote:

Originally Posted by S_Dedalus
I spent about an hour switching between a known bit-perfect optical out, and the usb interface, and there is a difference. Its not huge, but it is there. I think the decrease in sound quality with kmixer has been exagerated, and that it really depends on what the card itself does with the signal.


I would tend to agree with this - the optical input (from either a PCDP or HDP) is superior to the USB input. It's not by leaps and bounds, but it's there. I think this probably has as much to do with the nature of the digital signal from a PC (with it's varied and various fans and other noise-inducing components) and from an optically-driven source.

That said, I listen to my Coda/Overture with my work PC MOST of the time. It's one part convenience, one part flexibility...and it sounds pretty damn good at that.
 
     Share This Post       
post-1393420
Post #12 of 12

S_Dedalus

1000+ Head-Fier
Joined
Jan 24, 2004
Messages
1,271
Reaction score
0
Joined
Jan 24, 2004
Posts
1,271
Likes
0
Quote:

Originally Posted by elrod-tom
I would tend to agree with this - the optical input (from either a PCDP or HDP) is superior to the USB input. It's not by leaps and bounds, but it's there. I think this probably has as much to do with the nature of the digital signal from a PC (with it's varied and various fans and other noise-inducing components) and from an optically-driven source.

That said, I listen to my Coda/Overture with my work PC MOST of the time. It's one part convenience, one part flexibility...and it sounds pretty damn good at that.



I was comparing the usb connection to a bit-perfect usb soundcard's optical out. Usb is probably the best connection if the dac has drivers that bypass kmixer, like the apogee mini-dac's do. The biggest problem for usb would be ground issues, but due to the nature of usb, there should be no jitter at all until after the receiver, and then its a problem with how the dac is implemented, not the connection.
 
     Share This Post       

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top