Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › The Official Grado 325i Owners Club.
New Posts  All Forums:Forum Nav:

The Official Grado 325i Owners Club. - Page 230

post #3436 of 3450
Quote:
Originally Posted by rage3324 View Post
 

I am considering the Schiit Modi. I am just not sure if it offers a noticable improvement over the macbook

 

The MacBook has a pretty good internal DAC, but I can hear a difference between listening to iTunes through the headphone port, or through USB > FiiO external dac/amp.

post #3437 of 3450
Try the jds o2. Considering their popularity I think you can get an used pair easily. I haven't tried the Schitt so I can't really offer any opinion, but the o2 has made day-and-night different on anything I have, from headphones to speakers system
post #3438 of 3450
Quote:
Originally Posted by lehoang15tuoi View Post

Try the jds o2. Considering their popularity I think you can get an used pair easily. I haven't tried the Schitt so I can't really offer any opinion, but the o2 has made day-and-night different on anything I have, from headphones to speakers system


Is the o2 a dac+amp? If so, how do I bypass the amp?

post #3439 of 3450
Quote:
Originally Posted by rage3324 View Post
 


Is the o2 a dac+amp? If so, how do I bypass the amp?

 

If you need only the DAC, You can just get the ODAC. It's around $150. But O2+ODAC is a good combination for a reference sound (transparent) and should have no problems driving all headphones in your list (provided you have the right gain options).

 

But I can see you are into tubes. So you may not like the transparency the ODAC (and/or) brings.

post #3440 of 3450
An equally competent alternative for portable use is the iFi nano iDSD ($200).
post #3441 of 3450

Sorry I meant the ODAC. When I plug the Little Dot I+ into my ODAC the sound is still very smooth and warm. I have not tried any tube DAC except for the Aune T1, but IMO it might be an overkill to own both a tube DAC and a tube amp.

post #3442 of 3450

I prefer a DAC that is not USB powered. What are my options then? SHould that even be a concern?


Edited by rage3324 - 12/3/14 at 2:30pm
post #3443 of 3450
No love in here for the iFi nano iDSD? It's an integrated DAC + amp. 1.65Vrms. With my fetish interchangeable digital filter (2 options--standard/linear and minimum phase filters). Minimum Phase filter=best digital filter IMO. I'm sure you will like the iFi house sound quality. I did. And this is portable, btw, but doesn't sound like the stereotypes on portables (vs desktops).
post #3444 of 3450
Quote:
Originally Posted by rage3324 View Post

I prefer a DAC that is not USB powered. What are my options then? SHould that even be a concern?

What makes you not considering a DAC powered by USB?
post #3445 of 3450
Quote:
Originally Posted by headwhacker View Post


What makes you not considering a DAC powered by USB?

 

I have concerns about jitter but maybe I am just crazy?

post #3446 of 3450
Quote:
Originally Posted by rage3324 View Post
 

 

I have concerns about jitter but maybe I am just crazy?

 

If properly designed and implemented it should not be a problem. It has been well documented. ODAC is a very good example.

post #3447 of 3450
Quote:
Originally Posted by headwhacker View Post
 

 

If properly designed and implemented it should not be a problem. It has been well documented. ODAC is a very good example.

I agree on rage3324's concerns.

 

Haven't heard the ODAC, but I believe that there must be galvanic-isolation of the USB power signal. The difference is audible, at least for me. The sound becomes more "digitally" to me.

 

The iFi micro iDSD has this; so even if you power from USB using it, the "unwanteds" from electricity are filtered/not there anymore. Plus you can use the micro using just the battery as power source, which in this case the issue here becomes a non-issue. This is why I highly recommend the iFi nano iDSD as its purely battery powered, plus it is not expensive.

 

No love for iFi nano or micro iDSD's in here?

 

Cheers.

post #3448 of 3450
Quote:
Originally Posted by diamondears View Post
 

I agree on rage3324's concerns.

 

Haven't heard the ODAC, but I believe that there must be galvanic-isolation of the USB power signal. The difference is audible, at least for me. The sound becomes more "digitally" to me.

 

The iFi micro iDSD has this; so even if you power from USB using it, the "unwanteds" from electricity are filtered/not there anymore. Plus you can use the micro using just the battery as power source, which in this case the issue here becomes a non-issue. This is why I highly recommend the iFi nano iDSD as its purely battery powered, plus it is not expensive.

 

No love for iFi nano or micro iDSD's in here?

 

Cheers

 

 

 

 

Like I mentioned, it's about implementation. I did a quick comparison of O2+ODAC with the Centrance Hifi-M8. Not ABX type yet, but I used a switch box to quickly switch between M8 and ODAC. Level-matched using my Beyer T1. Other that the click of the switch I can't hear any auduble difference. It just sound like listening to exactly the same source.

 

I haven't seen anyone yet mentioned the M8 sounded digital. 

post #3449 of 3450
Quote:
Originally Posted by headwhacker View Post


Like I mentioned, it's about implementation. I did a quick comparison of O2+ODAC with the Centrance Hifi-M8. Not ABX type yet, but I used a switch box to quickly switch between M8 and ODAC. Level-matched using my Beyer T1. Other that the click of the switch I can't hear any auduble difference. It just sound like listening to exactly the same source.

I haven't seen anyone yet mentioned the M8 sounded digital. 
To my ears, all DACs with decent implementation sound the same with the same digital filter.
Edited by diamondears - 12/5/14 at 5:46pm
post #3450 of 3450
Before I ordered the leatherette ear pads from U.S I bought some from China on eBay for the princely sum of £1.66, they arrived yesterday so went about fitting them, bearing in mind they were not intended for Grado's, in fact I don't know what phones they were meant for. I kept the foam pads in place and stretched the faux leather pads over them. They have a two layer material that covers the drivers and sounded very muffled so I cut holes in them and now they sound excellent with deep bass and nice treble. When my 325's were standard and I cupped my hands over the grilles the bass disapeared and they sounded very thin and strange, since changing to the wood shells this no longer happens. Is this usual?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphones (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › The Official Grado 325i Owners Club.