Hey Guys,   I'm in the market for some new headphones, strictly for use with bass-heavy Electronic Dance Music so the Ultrasone Pro 900s look like a good solution.  From what I have read, these headphones will benefit from an amp but I'm not sure if an amp or an amp and DAC will make much of...

If not, how about openback IEMs? (other than Stax srs-002)

Hello new friends, This is my inaugural post, having only recently started my foray into serious headphone technology.   So, I started with Audio-Technical ATH-M50s headphones (yeah, just a starter)... I know, not balanced, electrostatic, nor ortho.   Next, I bought the HRT iStreamer...

Anyone else using this combination?   I would be interested in reading your experiences.   I have been enjoying this rig in the office feeding Beyerdyamics DT770 Pro 80's.   Though, admittedly, I am a newbie in this HiFi headphone endeavor.   I would also be interested in rolling...

I am looking for a portable amplifier to replace a Meier XXS (between an iPod Classic 160GB and GR07s), and am considering the P4. I was just wondering, however, whether the amplifier section of the more expensive models (D6 and D12) sounds better, is more powerful, or whether the amp is the...

Hey Guys,  I'm going to be getting a portable amp for Christmas but I'm not sure which amp is better. Is the P4 worth the extra $70? I can't seem to find a complete review on either one. I'll be using my Ipod Classic 160gb and Ultrasone Pro 900's which I understand don't really need an amp...

I have recently taken delivery of an iBasso P4 "Warbler". I am using it with the stock op-amp configuration, and with gain set to "low" (to drive GR07 IEMs). Whilst it sounds excellent (particularly in terms of soundstage and dynamics), the battery performance has been less than stellar! In...

I recently received a new Ibasso P4 and fully charged it as soon as i got it. I have been burning this in for the past 2 days on the initial charge but i went to plug it in today after about 30 hours of use and the charge lever on the back will not stay up in the charge position. The P4 did not...

Hi,everyone here! I want to buy a new amp for my DT1350 and TF10. Now I 'm considering on these two amps and I also have some questions about these amps. I know the ibasso PB2 is a balanced amp,will it be more better than the P4 if I just use the normal Aux in and 3.5mm phone out? And...

Was curious if anyone had suggestions or a favorite configuration with the stock opamps that come with the P4 and the HD600. So far i like the AD797 in L/R and the  wideband buffers which i got from CJG888 in another thread but would like a little more bass. Also if anyone happens to have a...

So I was looking for a portable amp that might be able to stand a chance against powering a pair of 600 ohm headphones. From what I gathered ,although intimidating at first, dt 990s are not as hard to drive as one might expect. Well, the amp I was using at the time, the fiio e11, would do a...

Hi Guys,   i have Sennheiser HD 25 I-II with Cowon J3 and i am looking head amp to boost the performance. after looking for headamp available in my town i considering 2 options, Ibasso PB2 or Ibasso P4. could you give me input on which one is best for my gear ? i mostly listen to jazz...

Guys have decided on these 2 amp to purchase. But can't decide on which one. Some professional advice from owners or these two amps please. Ty

WILL THE P4 BE A BIG JUMP IN POWER AND SQ VS THE D4 ? AND I HAVE THE SAMSUNG P3 BUT LOOKING FOR  A  NEW PLAYER TO  PAIR WITH THE P4 ANY HELP ON THE NEW PLAYER  I CAN SPEND LIKE $300.00 

can someone help me? im noob! thx :)   for ultrasone pro 900 and sennheiser hd598

I am extremely limited but want something to use instead of builtin Mac speakers.  I have to keep cost to no more than $200 right now so the Audioengine A2's came to mind.  I know the amp + speaker combo is closer to $400 but could just buy the amp now and the speakers later.  Total is higher I...

Receiving my P4 tomorrow and I was reading the manual...     There's a charge on/off switch on the back, I was wondering what's the point in ever having this switch in the off position?   Is it okay to always have it ON and use it from the wall outlet?   I plan on using this...

Hello. What is the best PORTABLE Headphone Amp for the Ultrasone Signature Pro ?.  ( For Train..)  There are many..     Thanks    Andy

I want to bypass both the iPhone's amp and the E17's amp.   Goal: From iPhone (bypass amp) > go to the Fiio E17 Alpen as DAC only (bypass amp) > iBasso P4 Warbler amp > headphones.   I thought that using the Fiio L7 attachment to the E17 would help; but I realize that it wants a...

Well, I'm really trying to decide between the P4 and the D6 or D12, but then I'm trying to decide between the D6 and D12.  I just need help. lol Any input is appreciated. I don't REALLY need a DAC, but it would be nice. I like the amping ability of the P4, but I kinda want a DAC also.  Not...

i am going to be using an ibasso p4 amp fed by the d12 dac/amp. Just wondering whther its better to feed the p4 from the d12's headphone socket or aux out socket? tx.

I wondered if anybody could assist in me choosing a new portable amplifier???   My set up:   Iphone4 (not s) - music is lossless or 320kbp's, dance, pop, etc   Sennheiser hd 25 1 ii's - stock cable   LOD - silver plated copper   I did (until last week) have the fiio e11...

Hi guys out there, I have an iBasso P4 amp and I am considering purchasing an AK120 in the near future to bring my music enjoyment to the next step. I know that the P4 is a very good amp for its high quality components and versatility, but I've also heard that the AK120 is very picky with amps...

I've been doing some recording (guitar) with a Mac and an Ipad and I'm tired of using cheap headphones. I've got an old pair of 600 ohm K240's that I used to record back in the eighties and I would like to get an amp so I could use them again. I need an amp that has 3.5mm ins and outs and enough...

Hello, I am looking for portable amp suggestions to use for my itouch with my Ultrasone Pro 750's. I would be using LOD since my itouch's headphone jack is slowly going out. Truth be told, I was also thinking of getting a usb DAC down the line so here is what I have been thinking about...