Custom-built Objective2/ODAC vs Schitt Magni/Modi!!!

JoePilot

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NO RULES.
NO MERCY.
NO HOLDS BARRED.


Who will win, and who will be destroyed in this brutal cage fight?


1FAvV7T.jpg

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jjyo1Fk.jpg


STAY TUNED!!!! :D

(SORRY FOR THE CRAPPY PICS!=:p)

Custom Objective2/ODAC courtesy of yours truly
Schiit Magni/Modi courtesy of Airekris (thanks bro!)
Tested with HD598, Monoprice 8320
 
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JoePilot

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SUMMARY:

Both emerged winners. =:p
Gender-wise, the custom O2/ODAC is a guy. The M&M is a girl. Why? Read on!

OBJECTIVE COMPARISON:
This custom O2/ODAC has DAC RCA line-out and 3.5mm analog line-in. The M&M only has RCA to RCA to connect the DAC with the amp. Which means the O2/ODAC is more versatile when it comes to multiple sources. For the M&M, if you want to switch to an analog source, you will have to unplug the RCA cables on the Magni.

The M&M is fixed 5x gain.
O2/ODAC has switchable 2.5x/6.5x gain.

M&M takes up slightly more deskspace, and twice the height of the custom O2/ODAC.

Using Monoprice 8320 IEM, with nothing playing, the O2 is totally silent at max volume 2.5X gain. At 6.5X gain noise can be heard once the volume knob is past 2-3 o'clock.
For the M&M (5X gain), noise can be heard at 12-1 o'clock.
(Realistically, this won't be a factor during normal listening, esp if using full-size cans).

Also, there was crackling noise when the M&M volume knob is transitioning a certain spot near the maximum (I think it might be a bad pot?).
O2's knob is very very smooth. MM knob has a tiny rotational play.

SUBJECTIVE COMPARISON
Subjective listening tests are...subjective.
We didn't have the setup required for blind A/B testing, so Airekris and I decided right from the start that we won't be doing a subjective listening test that was likely to be subject to subjective bias. :s13:
So, we went ahead to have fun with both amps!

Looks-wise, the M&M is the clear winner. It looks stylish, it looks more expensive, and personally I prefer the cool blue LEDs. It has more sex appeal, with all the rounded edges.
The custom O2/ODAC, with its sharp edges and lines, looks masculine. I would describe it as clean, minimalist, even industrial. It's a machine, not a statement.
Airekris aptly described thus: The O2 is a guy, the MM is a girl.
(And girls/wives/girlfriends/sisters likes to make noise! :s13:)
 
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freewayfight

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Hahaha. Cage fight and royal rumble also ah. Just throw in all the brutal wrestling terms.
 

Phen8210

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u r going to abuse them n see which 1 more solid?
 

racoiaw

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drive car over see which one more solid?

aesthetically wise, the MM look so much better
 

alamakazim

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actually MM ... is spray coated...

they don't look that great in reality...
 

ZackZhou

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depends on the spray job. Mine looks good, mainly because of its build also.

i just dont like the side part of joe's o2, where its uneven surface. If its smooth i think it will look so much nicer. :s13::s13:
 

JoePilot

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depends on the spray job. Mine looks good, mainly because of its build also.

i just dont like the side part of joe's o2, where its uneven surface. If its smooth i think it will look so much nicer. :s13::s13:

Agree. :vijayadmin:
 

Shadow04

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i just dont like the side part of joe's o2, where its uneven surface. If its smooth i think it will look so much nicer. :s13::s13:

I agree with this. Also, I think if the light on Joe's o2 is white like M&M, it will be much nicer, red looks kinda out of place in that aluminium chassis.

From pictures, M&M does look much better doesn't it, but Joe's o2 also bue pai la. =:p
 

JoePilot

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POWER CONSUMPTION:

O2: 1.5W (max) (tested, documented by NwAvGuy)

Magni: 4W (specs)
That explains the vent holes on the Magni.
 

ZackZhou

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maybe can try some aluminium casing such as these? It looks similar to yours and have relatively smooth surfaces.





not costly too. around SGD20 only. :s13::s13:
 

ZackZhou

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SUMMARY:

Both emerged winners. =:p
Gender-wise, the custom O2/ODAC is a guy. The M&M is a girl. Why? Read on!

OBJECTIVE COMPARISON:
This custom O2/ODAC has DAC RCA line-out and 3.5mm analog line-in. The M&M only has RCA to RCA to connect the DAC with the amp. Which means the O2/ODAC is more versatile when it comes to multiple sources. For the M&M, if you want to switch to an analog source, you will have to unplug the RCA cables on the Magni.

The M&M is fixed 5x gain.
O2/ODAC has switchable 2.5x/6.5x gain.

M&M takes up slightly more deskspace, and twice the height of the custom O2/ODAC.

Using Monoprice 8320 IEM, with nothing playing, the O2 is totally silent at max volume 2.5X gain. At 6.5X gain noise can be heard once the volume knob is past 2-3 o'clock.
For the M&M (5X gain), noise can be heard at 12-1 o'clock.
(Realistically, this won't be a factor during normal listening, esp if using full-size cans).

Also, there was crackling noise when the M&M volume knob is transitioning a certain spot near the maximum (I think it might be a bad pot?).
O2's knob is very very smooth. MM knob has a tiny rotational play.

SUBJECTIVE COMPARISON
Subjective listening tests are...subjective.
We didn't have the setup required for blind A/B testing, so Airekris and I decided right from the start that we won't be doing a subjective listening test that was likely to be subject to subjective bias. :s13:
So, we went ahead to have fun with both amps!

Looks-wise, the M&M is the clear winner. It looks stylish, it looks more expensive, and personally I prefer the cool blue LEDs. It has more sex appeal, with all the rounded edges.
The custom O2/ODAC, with its sharp edges and lines, looks masculine. I would describe it as clean, minimalist, even industrial. It's a machine, not a statement.
Airekris aptly described thus: The O2 is a guy, the MM is a girl.
(And girls/wives/girlfriends/sisters likes to make noise! :s13:)


Initially, My stack has the same problem as your testing set. "For the M&M (5X gain), noise can be heard at 12-1 o'clock. Also, there was crackling noise when the M&M volume knob is transitioning a certain spot near the maximum (I think it might be a bad pot?)"

However, after 1 week+ of 18 hours a day burn in and i reposition it (nearer to my laptop), there is no sound coming out from stack with both my 535 and 215s. This i do not know the reason thou. :s13::s13:

Joe's Diy o2+odac takes up much lesser space then M&m stack i believe, as Joe's do not need to have the rca to rca connection. Even he cables are 15cm long and bended, they still takes up space at the back thou. :D:D
 

JoePilot

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NEXT UP: DROP TESTS FROM 1m HEIGHT















Nah...u wait long long=:p
 

Airekris

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Initially, My stack has the same problem as your testing set. "For the M&M (5X gain), noise can be heard at 12-1 o'clock. Also, there was crackling noise when the M&M volume knob is transitioning a certain spot near the maximum (I think it might be a bad pot?)"

However, after 1 week+ of 18 hours a day burn in and i reposition it (nearer to my laptop), there is no sound coming out from stack with both my 535 and 215s. This i do not know the reason thou. :s13::s13:

Joe's Diy o2+odac takes up much lesser space then M&m stack i believe, as Joe's do not need to have the rca to rca connection. Even he cables are 15cm long and bended, they still takes up space at the back thou. :D:D

Eh Zack you use Laptop not noisy meh.... from what i know USB from laptop very noisy 1
 
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