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

post #196 of 733
Quote:
Originally Posted by seehee2k View Post
Are you shure that won't alter its signature?
Since I absolutely can't stand the hiss, I've been using the T4 so far with an Awwan 46Ohm dongle adapter plugged in. It sounds still the same to my ears - even with ultra-picky phones like the SE530 which otherwise don't like added resistance much.

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post #197 of 733
Quote:
Originally Posted by ClieOS View Post
I don't really care about hissing cause if my IEM is so easy to drive that it can detect hiss, than I won't use an amp with it at all.
My reasoning is that because the MP3 players already hiss with these kinds of phones I want to add an amp to get rid of that. No matter if Sansa Clip, Cowon D2/X5/O2 - they all hiss with phones like the UE11, SE530, and similar. That's why I got the Headsix, and it's totally black and removes the hiss. And of course I got the T4 for the same reason, among other things. But instead of getting rid of the inherent hiss, it adds quite a bit more.

The "Made for IEMs" slogan on the T4 is very deceptive. Yes, it works for ER-4S, Phonaks, or other high-impedance, low-sensitivity IEMs, but not for the multitude of low-impedance IEMs out there.
post #198 of 733
Quote:
Originally Posted by IvanH View Post
My response from iBasso:
----
Dear Sir,
Thank you for your email.
There are two version of T4.
The first 100 units T4 uses AD8656+AD8616+Nichicon FW caps. we launched second solution after the first 100 units gone.
The second version of T4 uses AD8656+LMH6643+Elna silmic 2nd Caps.
The 1200uf 6.3V rubyycon cap are same in two versions. Your pictures just showing the top and the bottom of the same cap.
The circuit desigan of these two version are same. Just different components. The first version has better soundstage. The second version has better mid and bass response.
The hiss of there two version are both well controlled. The are in the some level.

Sincerely
iBasso Audio
----
No wonder my T4 is so warm, I got the 2nd version =( I don't want warmth added to my sound, I want fidelity.
post #199 of 733
Quote:
Originally Posted by dfkt View Post
My reasoning is that because the MP3 players already hiss with these kinds of phones I want to add an amp to get rid of that...
Good thing none of my source hiss with my IEM

Quote:
Originally Posted by sidtai View Post
I don't want warmth added to my sound, I want fidelity.
It might seen strange to you at first, but the idea of true fidelity stops once the music left the recording studio - all we do here at HF are trying to define our own meaning of the word 'fidelity'.
post #200 of 733
Quote:
Originally Posted by ClieOS View Post
Good thing none of my source hiss with my IEM
This is quite hard to believe for me, but to each his own... maybe I'm just more sensitive to background hiss, personally. I wish I knew a single MP3 player that doesn't hiss with the likes of SE530, UE11, SF5, or similar. Of course Ety, q-Jays, Phonak, etc. don't hiss... but I don't use those phones too often.
post #201 of 733
Thread Starter 
I got a new T4 with the latest opamps. I do not hear any hiss but I do hear, after a short break-in, very good sound. Amazing for the price and size. It drives my ESW10's with the iRiver H140 source and lossless files, very well. Excellent sound in my opinion. I got the all grey version, vs the grey and silver and like the grey.
post #202 of 733
Quote:
Originally Posted by jamato8 View Post
I got a new T4 with the latest opamps. I do not hear any hiss but I do hear, after a short break-in, very good sound. Amazing for the price and size. It drives my ESW10's with the iRiver H140 source and lossless files, very well. Excellent sound in my opinion. I got the all grey version, vs the grey and silver and like the grey.
Good to hear. Can you post some pics of the all-grey version?
post #203 of 733
I ordered the all-grey version, but they sent me the golden/brown one... ah well, not enough to go through the hassle of sending it back.
post #204 of 733
Quote:
Originally Posted by jamato8 View Post
I got a new T4 with the latest opamps. I do not hear any hiss but I do hear, after a short break-in, very good sound. Amazing for the price and size. It drives my ESW10's with the iRiver H140 source and lossless files, very well. Excellent sound in my opinion. I got the all grey version, vs the grey and silver and like the grey.
How about your UM2? Is there any hiss audible? My replacement should arrive next Week, hopefully it'll solve this problem for me.

seehee
post #205 of 733
Thread Starter 
No hiss on the UM2's unless I turn the gain to high and turn the volume to max, at which point I would be stupid because I would destroy my hearing.

The amp is totally quiet.

It sounds good with my UM2's. It only took about 3 years, well maybe more, to learn how to use the UM2's right.
post #206 of 733
Quote:
Originally Posted by jamato8 View Post
No hiss on the UM2's unless I turn the gain to high and turn the volume to max, at which point I would be stupid because I would destroy my hearing.

The amp is totally quiet.
That sounds perfect. Hopefully my experience will be the same.
post #207 of 733
My current use for T4.


iAudio 7/ T4/ 75 Ohm/ KSC75
post #208 of 733
I received my T4 yesterday and w/ my Yuin Ok1 and Koss KSC75 I do not hear any hiss. Very surprised at how nice this unit sounds. I showed it to vorlon1 and although the T4 had only about 14 hours of burn in we were both impressed.
post #209 of 733
Thread Starter 




T4 with drk grey top, new version of opamps.
post #210 of 733
jamato8, how hard/easy is it to open the T4. Would you please post instructions, or if you would please PM me. Thanks.
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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 . .