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The iBasso T4, tinier than the T2 and better . . with more new images page 1,5, 14 . . - Page 12

post #166 of 733
12/29/08 at 9:33pm
I just wanted to comment on the hiss issue. I've given my T4 75+ hours to settle. With my ER4P I get absolutely zero noise at full volume in high or low gain with no source connected. With my i7 connected with music paused and with volume on i7 at full ( 40/40) I hear noise creeping in at volume setting on T4 at 7 in low gain.

I find that I prefer BBE on my i7 set at 1 which softens the upper mids it seems and in general gives a smoother sound.
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post #167 of 733
12/30/08 at 5:08am
Quote:
Originally Posted by GreatDane View Post
I just wanted to comment on the hiss issue. I've given my T4 75+ hours to settle. With my ER4P I get absolutely zero noise at full volume in high or low gain with no source connected. With my i7 connected with music paused and with volume on i7 at full ( 40/40) I hear noise creeping in at volume setting on T4 at 7 in low gain.

I find that I prefer BBE on my i7 set at 1 which softens the upper mids it seems and in general gives a smoother sound.
hmmmm ibasso t4, icon mobile, or replace broken 4gb clip with 8gb clip.
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post #168 of 733
12/30/08 at 8:04am
There is a coupon code that you can use at shopsansa.com that will bring the 8 GB Clip down to $79 ish shipped. As much as I like amping my portable stuff, a new DAP is always best IMO. For the price, I do believe the T4 is worth it though.
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post #169 of 733
12/30/08 at 1:42pm
Quote:
Originally Posted by RAQemUP View Post
There is a coupon code that you can use at shopsansa.com that will bring the 8 GB Clip down to $79 ish shipped. As much as I like amping my portable stuff, a new DAP is always best IMO. For the price, I do believe the T4 is worth it though.
Nah, i think I'm digging the d2, and maybe ill buy a t4 later. I think an E5 right now will suffice, I just have the wait till its back in stock at Head-direct.
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post #170 of 733
1/1/09 at 9:35pm
I ordered my T4 about a month ago and got it about 2 weeks before Christmas. I can't use it yet because it is going to be a birthday present (Jan 7th) and after reading all 17 pages, I am totally psyched to open it.

I listened to it for about 2 minutes before I put it up and it sounded "ok" (didn't burn it in) and once I try it with my Touch and Super.fi 5's, then I'll post a review thing up here.
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post #171 of 733
1/1/09 at 9:47pm
Quote:
Originally Posted by Young Spade View Post
I ordered my T4 about a month ago and got it about 2 weeks before Christmas. I can't use it yet because it is going to be a birthday present (Jan 7th) and after reading all 17 pages, I am totally psyched to open it.

I listened to it for about 2 minutes before I put it up and it sounded "ok" (didn't burn it in) and once I try it with my Touch and Super.fi 5's, then I'll post a review thing up here.
You should have made a small hole in the box for power and line in...set it on top of a CDP and let that baby burn in.
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post #172 of 733
1/1/09 at 10:33pm

Inside Pictures

Quote:
Originally Posted by Rav View Post
Large images so i'll link them...

http://www.snatchbank.co.uk/filehost/raven/t4a.jpg

http://www.snatchbank.co.uk/filehost/raven/t4b.jpg

http://www.snatchbank.co.uk/filehost/raven/t4c.jpg

I am constantly amazed at how much technology can be shoehorned into such a small space.
How can it be that the components inside of ibasso T4 are different in these pictures:
スパイラル物置: iBasso T4

4 x 10v 100uf and
AD8616
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post #173 of 733
1/1/09 at 10:48pm
Quote:
Originally Posted by IvanH View Post
How can it be that the components inside of ibasso T4 are different in these pictures:
スパイラル物置: iBasso T4
Please explain the differences.
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post #174 of 733
1/1/09 at 10:55pm
The components you see in the links from the quote, are different than the components you see in the pictures from my link.
4 x 10v 100uf vs 4 x 10v 47uf and
"AD8616" vs "74RA LMH66"
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post #175 of 733
1/1/09 at 11:03pm
Very interesting find, IvanH. I wonder why they swapped the opamps, National vs. Analog Devices?

That might be among the reasons why my T4 hisses and some other people claim theirs don't. If that's the case I'm seriously pissed off.

Here's mine, National opamp and 47µF caps:



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post #176 of 733
1/2/09 at 2:00pm
Notice that the print layout is also different, under the 6,3v 1200uf.

I have written a message to iBasso, and asked
why there are 2 different print layouts and different components.
What the advantages / disadvantages are between the two and
Which one I will get if I order one.

I will post the answer as soon as I get it.
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post #177 of 733
1/2/09 at 2:04pm
I'd speculate the National/47µF design is cheaper to manufacture than the AD/100µF... Maybe they started with the AD/100µF version but cut costs with newer T4s?
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post #178 of 733
1/2/09 at 3:56pm
I believe your right about the price consideration. But I also think that the expensive version might be for the chinese (east) market and the cheap version for the rest of the world (only my thoughts).

What practical difference do you think the 47uf / 100uf would make?
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post #179 of 733
1/4/09 at 4:38pm
Quote:
Originally Posted by IvanH View Post
I believe your right about the price consideration. But I also think that the expensive version might be for the chinese (east) market and the cheap version for the rest of the world (only my thoughts).

What practical difference do you think the 47uf / 100uf would make?
Nope, I live in Hong Kong and my T4 comes with 47uF capacitors.
I just received my T4 a few days ago and what I noticed is the T4 warms up my music by a noticable amount. Although I really like its portability I don't like the idea of an amp coloring the sound coming out of my headphones. My beloved ES7 loses its sparkle when paired with the T4. I'd rather listen to the headphone out from my zune.=(
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post #180 of 733
1/4/09 at 4:51pm
Thread Starter 
The Silmac caps are supposed to be very good. The different opamp is supposed to be also, very good but the AD8616 is noted for low distortion and just good sounding. I have been familiar with the 8616 for some time and it has always, when done right, produced very good sound. I got a very early T4 and get zero hiss so can only assume that mine is the 8616 and 100uf caps, well in fact I know it has the 8616 opamp. I didn't realize they had changed anything.
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Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › The iBasso T4, tinier than the T2 and better . . with more new images page 1,5, 14 . .