HiSound POPO Review

HiSound POPO Review

I would like to thank HiSound for giving me a pair of these wonderful headphones for review! As always my reviews strive to be as unbiased as possible, and I’m always welcoming suggestions on how to better organize my reviews, so if you have any comments, tips, or advice feel free to comment and let me know!

Packaging and Build

            The packaging is very bland, and does not offer much other then protection during shipping. This is one area I think could be improved, seeing as how companies like DUNU which price similarly tend to come with things like carrying pouches. It did luckily come with a package of different sized ear tips, no adapters or carrying cases here though.

            So how is the thing built? Well the wood is very aesthetically pleasing and the units themselves are very lightweight and comfortable. They have a very good fit, one of the better that I’ve tried. However one thing that does bother me is that the headphone cable picks up a lot of noise when brushed up against or touched.

Sound

           

            One thing that strikes me immediately is that these headphones have a very soundstage width that is both extensive and very controlled. There is depth to some extent but I’ve noticed that depth is often hard for IEMs (In Ear Monitor) to portray and that proves true here too.  But they’ve nailed soundstage in my opinion for an IEM in this price range!

            These, like the DUNUs, fit into the bass head category of in ear headphones. It sounds to that bass below 80 Hz is boosted and it does not bleed into the midrange at all, which is very pleasing. The bass has nice punch, but leaves a little to be desired in terms of detail. It seems a little punchier then the DUNUs house sound, with less mid bass. This results in improved vocal reproduction.

            Were these shine is in the mids and highs, which I think are very tonally correct. Female vocals come through with detail, presence, and warmth. Highs are not sibilant and are very well controlled, they don’t have shimmering detail or an airy feel to them but they are very pleasant and laid back. Frequency response is good, they seem to go down pretty far, not quite as far as they clam I think but pretty good nonetheless, upper frequency is equally well extended.

            So do I think they are worth the asking price of $90? (It can be found for less through authorized retailers) Yes I do think its worth the price, the soundstage is most impressive and possibly the best I’ve heard under $100 in the IEM market. In fact I think these are my new favorite in ear headphones that I own. The only thing I want to see changed is I would love to see it include at least a basic carrying case since most people will be using these on the go and for the price they should include something. With that said I can highly recommend these headphones!

Apex Butte Review

APEX BUTTE

A Little Information

First I would like to thank Todd The Vinyl Junkie for giving me the opportunity to review this unit. I would also like to mention that I am always honest with my reviews. If I don’t like a product I will let you know, I won’t hold back any criticism. So I hope that this review will be helpful to anyone considering the purchase of the APEX Butte headphone amplifier.

I would say that I’ve first heard about APEX audio earlier this year and I’ve been interested in hearing some of their products. Unfortunately most of their products were just way out of my price range. I believe this is one of the reasons that they produced
the Butte. The Butte is effectively a very good entry product in their line to showcase the APEX name brand and their products in my opinion. So how well has it done this? You’ll have to read to the end to find out for yourself. For testing this headphone amplifier I used the following:

 ●  Lossless Music, Some 24/96

 ●  MacBook Pro

 ●  Music Streamer II+

 ●  APEX Butte

 Burson 160 (For Comparison)

 ●  AKG K702s

 Build and What’s included

 So whats included? Well honestly not a whole lot, I would like to point out though that the packaging was very good and I can’t see it getting damaged in transport. The only thing included was the amp itself and the wall wart that goes with it. Simple and to the point I suppose, however I keep thinking about the fact that it uses a wall wart when most things in this price range would have some pretty hefty transformers in the unit itself. I suppose though that the sound quality will tell all.

So how is built? Well, I’d have to say its built pretty solidly. The case is made of good metal and I believe the front panel is made of wood but don’t quote me on that. The knobs and buttons could feel a little more solid though. They are not bad but they are not like a Burson either. It is a very small, low profile case and that might work extremely well for those with smaller desk or spaces.

Connectivity and Power

One other thing to note is that unlike most amplifiers this one has two separate inputs, however that’s where some of the troubles start. One of the inputs is a set of RCA inputs and the other input is a 3.5mm jack for connecting things like iPods I suppose. As others have mentioned there is bleed over from the other inputs when they are not selected. I don’t hear any noise when the other one is off and I don’t get any buzzing or weird noises like others have reported though. This problem does make the two inputs a

little less useful if you start having ground issues or one of your sources need to remain powered on. I’d still count it as a plus as many of us have more then one source for our amps.

How much power does it have to drive those hungry headphones of yours? Well 750mW into 33 Ohms according to the official site and I believe it, I never had to go past 11 O’clock with my 702s. Well, I would say it likely has more power then you’ll ever need for conventional headphones, the only ones you might have problems with are some like the HE-6 or K1000s but for general use it has more then enough power. In fact it might be a little too powerful for in ear monitors, I felt that when using IEMs that the attenuator was a little too touchy.

Sound

The first thing I noticed when I started listening was how much impact bass notes hit with. I feel that the bass with this amp is rather odd. It almost sounds like it starts rolling off just ever so slightly below about 40Hz as another user has also observed. However even with this slight roll off of lower frequency it has more impact then a lot of other amps I’ve heard. It tends to really kick and punch out those notes, doing so with a decent, but not amazing amount of detail.

Another thing I noticed is how neutral and uncolored it sounded. Its one of the most neutral amps I’ve heard and yet not exactly a what goes in comes out kind of deal either. It has a very smooth sound that tends to make poor recordings sound a little better due to its forgiving nature. No one frequency seemed to stick out from the rest, everything blended together very coherently.

One thing this amp does lack in my opinion is detail. Maybe its bit harsh to compare it right up against the Burson but it seems fair to me, both being near the same price range and both being solid state. The Butte tends to be smooth sounding as mentioned but I find that this is so at the cost of detail. The detail is present but seems to take a backstage to things rather then presenting it to you in a proper manner. This seems to hold true across the frequency spectrum.

The smoothness I mentioned earlier also gives this amp a euphoric “Fun” sound.. I don’t know how they accomplished to both be neutral and fun at the same time but apparently its possible. If you listen to a lot of trance or anything that you might zone out on, this would be a very fun listen. It sort of just lets you transport yourself into the music.

The Butte definitely does sound-stage well, but different from a lot of amps. It has a pretty good width to the sound-stage but where it really shines is depth. It has a really accurate and large sound-stage depth for a amp in this price. I would go so far as to say that the depth is larger and more well controlled then the Burson however the width is not as wide or controlled as the Burson, so it has its trade offs.

Transparency is very good and you can clearly distinguish different instruments.

You can really notice this when there is natural reverb, you can distantly and clearly hear the separation from the actual singing and the reverb of the singer. The transparency is truly great.

You will never have to worry about fatigue with this amp. The treble is very mellow and a little laid back which means you’ll never have your ears pierced by screechy highs or peaks in the frequency. Honestly this has almost a tube like sound to the upper frequencies very musical, but well extended.

Pros

• Very well balanced Forgiving
• Non fatiguing
• Good sound stage depth Powerful
• Neutral but fun
• Bass Impact and slam Small physical footprint

Cons

• Lacks detail when compared to Burson 
• Slight bass roll off below 40Hz
• Sound bleeding from multi inputs 
• Sound-Stage width not as controlled as Burson 
• Volume Pot too sensitive for some IEMs

Conclusion

This amp does a lot of things very right in my opinion. For the price I don’t think there are any amps that I’ve heard that can compete. I’ll admit I was skeptical of how this would sound seeing the wall wart and no large capacitors inside (looking at Tyll’s pictures) but wow was I impressed. It has a very different sound from the Burson 160 amp that I have and some my like it and some might not. Its more fun sounding, then the Burson yet at the same time retains extreme neutrality. Its not quite as revealing as the Burson but that can be good on poorer recordings, this is why its such a forgiving amp. Besides some slight roll off below 40Hz, the neutrality is something to be admired, not to mention the amount of impact bass notes can hit with, truly astounding. The impact is rivaled only by much more expensive amps such as some of the Eddie Current stuff. I’ve not heard a ton of amps but I’ve heard quite a few and this stacks up well agents a lot of them I’ve heard, its very unassuming from the size of this unit.

Its not all peaches in cream however there are a few things I would really like to be resolved in the next version or in a update to the production units. I would love to see the multiple inputs fixed. As it stands if you want to leave two devices plugged into

it you will definitely hear them even when that input is not selected. I would also like to see a hi and low gain switch on the front for more control over the volume when using IEMs. But all said and done this is magnificent amp and gets a 5/5 from me!

HIFIMAN/HeadDirect RE 272 Review

HIFIMAN/HeadDirect RE 272

A Little About Myself

I am very honored to have been one of the many chosen that were able to review this unit and I want to thank HeadDirect and HIFIMAN for putting this together. I don’t have a lot of experience with IEMs and so this has been very fun and interesting. I would say I have decent experience with over the ear headphones I have heard many headphones and on a lot of different amps which I hope will allow my review to be a little more informative and useful. I am not down with all the audio terms, so I can only hope that someone will find this review useful. Thank you again and happy listening!

Packaging

When I received this unit I was surprised by how nicely the case looked, the pictures don’t do it justice and everything is packed nicely in the box. However it looked like it was already opened I don’t know if you guys test them before sending them out or not? But everything appears in great condition and the headphones themselves are very appealing to the eyes.

Sound (With Burson 160 - MS II+)

Pros

The highs are well done, not too bright, musical and a little forgiving, this works great for jazz music and classical as well as older rock. I’ve found that it has a good center image with a lower mid field type soundstage it seems to be very dynamic in its soundstage though. One moment it can be very close and intimate if the music calls for it and on other tracks can have a pretty decently large soundstage, for the most part however it seems to sit in the lower midfield to me. Very smooth,detailed, and well balanced mids very good for vocals like Norah Jones,Patricia Barber, even male vocals sound astonishing, such as Tom Waits Etc. One other area that this does well in is classic rock, despite that it could use for a little more bass the handling of the highs is done so well that I still think its great for classic rock. Generally I think that the highs are to bright or sibilant on most headphones but despite not being petite or shy in any means these manage to sound good on tracks that would normally sound too bright to my ears. Trumpets are rendered near perfect and saxophones sound amazing, cymbals are very defined and not grainy at all.

Cons

I thought the bass had a great balance as well as good detail however some may find it a little petite and in some older rock I found my self wanting a little more bass. Another thing is that despite its great overall balance I felt that it lacked a little warmth, if you like warmth or tube like sound then these might not be for you but if you can pair them with a tube amp as I did you will be rewarded.

WIth Little Dot MK III - MS II+

When I used it with my Little Dot MK III I thought it brought some of the warmth and bass that lacked in the Burson however at the cost of detail. I really think that these headphones prefer tubes which is odd for IEMs or at least I think thats odd. Despite the lack of detail the already wonderful mids now have a very nice and silky presence. With this amp the soundstage was pushed back a tad making it sound a little wider as well. These IEMs really do change quite a bit with different amps. Rock with these headphones and this amp sounds godly, very soft highs and more low mids and bass make this a absolute winner for classic rock! One song “Gypsy Wine” from Paper Garden is really bad on most headphones due to the annoyingly bright sound but on these its listenable which is saying a great deal!

Directly out of iPod Nano 5th Gen

Direct out it lacked the soundstage that it is capable of, it lacked detail and the highs lost its magic. I don’t blame the headphones for this one bit obviously the feed direct out of an iPod is not very hifi unfortunately I don’t have a portable amp or dac to test this with. Non the less it was still very good for on the go listening and would be fine for commutes or other things but if you want the best out of these headphones you need to have it hooked up to good equipment.

Comfort / Isolation

Very comfortable with tons of options for the right tip size depending on your preference and ear canal size. Lots of good and useful adapters are included which is nice. One other thing I really liked is that the connector, instead of being L shaped or straight it has a curve in it that is not only stylish but also practical. These headphones seem to block out a good amount of noise and would be good for an airplane or bus ride I can’t say how many DB it blocks but if I had to guess I would say somewhere around 20 DB. My brother actually blew a blow horn next to my door and I was unable to hear it listening at normal volume with these! The cord appears to be the perfect length to connect an iPod or other personal source without being long or cumbersome.

Extra Thoughts

Having not heard many IEMs I would say these are hands down the best I’ve heard, comparing them to full size of course is unfair but let me just say that I prefer these over all my other headphones other then my K702s which I still like a little more overall. Would I buy these? If I was looking for IEMs then yes I would definitely look at these, they do not overdue the bass like the other IEMs I’ve triad do, which is a big plus for me.  The tonality is also quite special almost a mix between the AKG and Ultrasone sound signature.

Specific Songs (test conducted on Little Dot MK III for the below)

Rock - Pink Fold - The Wall  Side A - Mother

Has a very musical sound right off the bat, non fatiguing and very natural sounding. It sounds great with this like it was meant for this song, I think this song demonstrates how well it does with classic rock. The highs are not over powering or under whelming they are simply dead perfect for this type of music. The mids are clear as ever and it renders the vocals very realistically. You can hear the guitars with great detail, every instrument is very distinct and the voice is dead center, as I mentioned before the center image is very very good on these headphones. These headphones let the song portray the emotions that were put into this recording very clearly. 

Jazz - Patricia Barber - Modern Cool - Post Modern Blues

Wow the bass! This track was mastered with too much bass IMO but other then that is a top notch recording. Most headphones will render the excessive bass muddy, however these do not! Very clear you can hear as the strings are plucked on the bass guitar and there is detail! Wonderful detail, not muddy in the least it carries the multiple note bass easily across its small drivers with deep impact. Patricia’s voice is rendered properly and very realistically as well, very smooth and relaxed and a pleasure to listen to. Very distinct instrumentation found here as well. 

Alternative - Tom Waits - Alice - Alice

Very good separation of the instruments, the saxophone on the further left is easily distinguishable from the center saxophone its like night and day separates them perhaps a little too much. It almost sounds like the left saxophone is slightly behind me which is a little odd. Tom’s voice holds a very good tone not too heavy or syrupy like some headphones can be on this song. It carries the somewhat dark texture of this song very well. The trouble sounds a little grainy but that could be the song I’m not sure. 

Metal - Marilyn Manson - Antichrist Super Star - Dried Up, Tied and Dead to the World

Perhaps as I’ve mentioned before a little bass light, but it scales well going load. I don’t play stuff as load as most but as load as I was willing to listen (also don’t want to risk damaging these haha) there were no signs of distortion. Marilyns voice is down as good as well I think that’s the key to these headphones, very good vocals and mids with highs that are forgiving. These did not get my blood going though, I think the  slight lack of dynamics on these does not suit heavy metal. Its not bad don’t me wrong but I think I’d rather use some Grados or Sony XBs for metal. 

Folk - Noble Beast - Andrew Bird - Tenuousness

The highs felt a little too forgiving on this track and the lack of a little bass made it feel a flat. I can’t say that I really like these headphones with this specific song. The guitar had good detail but felt compressed. It felt like everything just lacked dynamics. 

Electronic - Trifonic - Emergence - Emergence

Gobs of detail, fast pace and rhythm and not overly done bass! Great for electronic music that’s what I say. The drivers have a very fast response and keep up well with the fast pace. Really gets your heart going here. I keeps the smooth graduated sounds smooth, and keeps the sharp crackling sound sharp. From what I’ve heard with a lot of headphones that I have that’s very hard to do right and these do it!

Burn In

Last but not least burn in. I have about 30 hours on these and have noticed very little burn in effect. Burn in for the most part seemed complete after 10 hours. After that 10 hours very little if not nothing seemed to change.