[linuxworks]

pic of the AMB gamma1 driving my PPA v1

(alphabet soup, both in english AND greek!)

the green bat handle on the mode switch is very cute and shows 'oper status' of the incoming signal.

 

[linuxworks]

another angle (compare shot) of the bantam dac and gamma1 dac:

hey, can I make quadraphonic sound from having 4 channels of output?

 

[fordgtlover]

Nice work and very nice pictures.

 

[nsx_23]

I wish I could build something like that....

 

[fordgtlover]

^

The outcome is worth the practice

 

[Heady]

Quote:

Originally Posted by linuxworks /img/forum/go_quote.gif another angle (compare shot) of the bantam dac and gamma1 dac:

Aren't you going to put on record your opinions of the sound quality from both?

 

[ShinyFalcon]

Oh wow, a fully built γ１! It looks very nice... can't wait to scrounge up another $100 or so. Hurry up and give us your impressions!

 

[Fred_fred2004]

I don't think I can get any smaller, including input and output sockets,

Next I'll etch one on the head of a pin should have it done by April 1st

Anybody wants the layout drop me a PM I'm happy to share the insanity

 

[TzeYang]

wow that looks cool.

 

[linuxworks]

Quote:

Originally Posted by Heady /img/forum/go_quote.gif Aren't you going to put on record your opinions of the sound quality from both?

as is sometimes said, "I dont speak audiophile"

what I can say is that I'm quite happy with the sound of the gamma1. its hard to compare the two since I rarely use usb-audio for anything 'serious'. when I'm near my computer, its rarely a 'serious' sitting and listening situation and I also have the noise from the computer to distract me. I wish there was an easier way to a/b the 2 of them and even if I a/b compared the usb sides of things, that isnt' as valid since the gamma1 (in my config) goes from usb to the pcm chip (to create spdif) and then onto the xtal chip to convert to i2s and then FINALLY onto the dac. the bantam has only 1 chip and does not 'convert and convert' like this one does.

one thing I noticed is that linux can see the mixer (vol control) on the bantam and yet linux can't see the vol control on the gamma1. probably a linux bug, though

both do sound very clean and I might find it hard to tell them apart.

if I needed ONLY usb-audio the bantam was cheaper and actually easier to build (less parts and less soldering). but the gamma1 is a full featured dac that is my first choice when I have to feed the spdif output of my popcorn hour or slimserver box.

in short, I'm not sure there is much to complain about on either dac! they are both excellent sounding with no 'issues' that I can point to, sound-wise.

 

[linuxworks]

Quote:

Originally Posted by Fred_fred2004 /img/forum/go_quote.gif I don't think I can get any smaller, including input and output sockets,

excellent effort! I like that quite a lot

 

[cobaltmute]

Quote:

Originally Posted by Fred_fred2004 /img/forum/go_quote.gif I don't think I can get any smaller, including input and output sockets, Next I'll etch one on the head of a pin should have it done by April 1st Anybody wants the layout drop me a PM I'm happy to share the insanity

Looks about the size of the Master's ( b, c, d )

And he did it without SMD on perfboard.

 

[sandbasser]

Quote:

Originally Posted by linuxworks /img/forum/go_quote.gif pic of the AMB gamma1 driving my PPA v1 (alphabet soup, both in english AND greek!) the green bat handle on the mode switch is very cute and shows 'oper status' of the incoming signal.

Is the "green bat handle" is VERY COOL!!! Is it part of the std BOM or something you added - if you added it, would you care to share a PN etc.

Most excellent!

 

[Beefy]

Quote:

Originally Posted by sandbasser /img/forum/go_quote.gif Is the "green bat handle" is VERY COOL!!! Is it part of the std BOM or something you added - if you added it, would you care to share a PN etc.

Standard BOM. Taken from the Headwize thread:

Quote:

SW1D / NKK G13JVCF bicolor illuminated toggle switch / Digikey 360-1772-ND; Mouser 633-G13JVCF-RO; RS 453-7893 * The selector switch SW1D is a bi-color illuminated miniature toggle. It serves as the power-on indicator as well as CS8416 status. Normally, it glows green. If the datastream is not audio, or if there are errors, then it changes to red. The status is taken from the NV/RERR and -AUDIO pins of the CS8416, and the NOR gate chip U8D plus two 2N3904 transistors (Q1D, Q2D) drive the two LEDs in the switch.

 

[linuxworks]

Quote:

Originally Posted by cobaltmute /img/forum/go_quote.gif Looks about the size of the Master's (

INSIDE a battery (container) !

pure genius. just amazing.