Head-Fi.org › Forums › Equipment Forums › Sound Science › O2 vs TOTL
New Posts  All Forums:Forum Nav:

O2 vs TOTL - Page 32

post #466 of 582

Is it a digital or analog pot? Most inexpensive analog pots have a very slight scratchiness, which in Class A configuration (the pot before the amp) is amplified by the amp.

post #467 of 582
Thread Starter 
Quote:
Originally Posted by scootsit View Post

Is it a digital or analog pot? Most inexpensive analog pots have a very slight scratchiness, which in Class A configuration (the pot before the amp) is amplified by the amp.

analog

post #468 of 582
Quote:
Originally Posted by chrislangley4253 View Post

analog


I've even had a very faint amount of scratchiness in the blue Alps pots, short of a discrete volume knob with detents, I doubt that there is any guarantee of no scratchiness (shy of $100 or so). The scratchiness is usually only when you turn the knob, so many hardly notice it. I recently built an amp with a brand new pot from Alpha, there was a few ohm channel imbalance, and some scratchiness. People over in DIY seem to have ideas of which brands are better or worse, but I really think it's pretty unavoidable (again, aside from very expensive or detent based vol knobs). If it's bothering you, you should send it back though.

post #469 of 582

There is/are pots w/ near zero imbalance and perfectly clean adjustment.  Not cheap and you need to buy 100 of them.

post #470 of 582
Quote:
Originally Posted by Anaxilus View Post

There is/are pots w/ near zero imbalance and perfectly clean adjustment.  Not cheap and you need to buy 100 of them.


Absolutely, I wasn't suggesting otherwise. But, if you're going to build a $100 amp, you're probably not going to use those. Detents are the best, though.

post #471 of 582

http://en.wikipedia.org/wiki/Speaker_wire

 

So, the final judgment about the quality of cable on audio quality is... No effect?

 

Just hope to end my journey of searching for the answer. I hope i'm not searching for a non-existing gem inside a pile of diamond shards. No flaming intended, no flaming please. The purpose of this widely debate topic re-post here is that I've stumbled across this wiki article, and then I'd like to hear if someone experienced can shed a light to illuminate me.

 

Thanks!

post #472 of 582
Quote:
Originally Posted by autumnholy View Post

http://en.wikipedia.org/wiki/Speaker_wire

So, the final judgment about the quality of cable on audio quality is... No effect?

Just hope to end my journey of searching for the answer. I hope i'm not searching for a non-existing gem inside a pile of diamond shards. No flaming intended, no flaming please. The purpose of this widely debate topic re-post here is that I've stumbled across this wiki article, and then I'd like to hear if someone experienced can shed a light to illuminate me.

Thanks!

Correct. You run into issues with cabling that's too thin for long runs, but otherwise that's it. Just buy 12 AWG zip cord, the stuff is cheap at monoprice, and you'll be set.
post #473 of 582

Clearly there's some effect, as you even saw in the wikipedia article.  It just tends to be vanishingly small.  Whether or not it's true or important, some may say that 1% loss is not acceptable, so they will define even more stringent requirements than set there.  Some effects discussed by some are real (but may not matter); others are not.

 

The way I would phrase it is that it probably should be one of the least of your worries in a home installation, in terms of audio quality.  There are much bigger problems to tackle, unless you have a long run of woefully thin cabling.


Edited by mikeaj - 8/4/12 at 10:01am
post #474 of 582

I'm so confused. How did we get here?

 

If you're talking speaker wire, my favorite is at Lowes/Home Depot. The sprinkler wire is 2x 12. 12 gauge is probably overkill, but it's pretty finely stranded so it's soft-ish. Also, it's 50 cents per foot. It uses decent copper, it may even be OFC.


Edited by scootsit - 8/4/12 at 10:19am
post #475 of 582
Quote:
Originally Posted by mikeaj View Post

Clearly there's some effect, as you even saw in the wikipedia article.  It just tends to be vanishingly small.  Whether or not it's true or important, some may say that 1% loss is not acceptable, so they will define even more stringent requirements than set there.  Some effects discussed by some are real (but may not matter); others are not.

The way I would phrase it is that it probably should be one of the least of your worries in a home installation, in terms of audio quality.  There are much bigger problems to tackle, unless you have a long run of woefully thin cabling.

As long as the gauge is sufficient for the length you want, plain copper zip cord will sound neutral, which is the way it's intended to sound. The lengths used in home audio setups aren't enough to be concerned about. Now, if you want some bling and feel like getting boutique cables to add visual appeal, go for it. Like another member around here says, cables are like audio jewelry, and there's nothing wrong with pimping your rig a little.
post #476 of 582

Whoa - what happened to the discussion of '02 vs TOTL' ?  I found a reason to resurrect my E9 when it became apparent that the O2 doesnt work as well as a pre-amp for my Logitech gaming speakers. V should have anticipated that requirement when he designed the amp.  rolleyes.gif

 

1000

 

Whatever the measurements, the E9 wins this battle. Now all I have to do is find better speakers ......

 

1000

post #477 of 582
Quote:
Originally Posted by estreeter View Post

Whoa - what happened to the discussion of '02 vs TOTL' ?  I found a reason to resurrect my E9 when it became apparent that the O2 doesnt work as well as a pre-amp for my Logitech gaming speakers. V should have anticipated that requirement when he designed the amp.  rolleyes.gif



Whatever the measurements, the E9 wins this battle. Now all I have to do is find better speakers ......


Just get the Maggie desktop system and be done with it. They are supposed to sound amazing
post #478 of 582
Thread Starter 

V is adding preamp outs to the ODA

post #479 of 582

Good stuff. The Mini Maggies might be a tad extreme for gaming and  the odd tune while I'm vacuuming the apartment - I use headphones for everything else. I think the XS Book and a sub would be a better investment for my modest needs atm - bigger plans for 2014, but that's quite a few months away. 

post #480 of 582
Quote:
Originally Posted by chrislangley4253 View Post

V is adding preamp outs to the ODA


Glad to hear this. I want this to be a full-fledged audio product. I want all the bells and the whistles.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Sound Science
Head-Fi.org › Forums › Equipment Forums › Sound Science › O2 vs TOTL