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Portable Amps item created by lllee, Jun 4, 2010
Pros - Excellent customer support, good value for entry amp, incredible battery life
Cons - Inverts phase, low-end distortion, not enough voltage for high-impedance cans, DC-offset on output when turned off, channel volume imbalance
I owned two PA2V2 and while it's good value amp, it had far too many flaws to my liking.
Gary however provided excellent customer support throughout the whole time.
Ended up with O2 and I'm happy so far.
Pros - sound quality, unbelievable value for the price, battery life
Cons - no bass adjustment
current use is for watching movies / series on netflix on a nexus 7 tablet , though occasional use with a vintage sony 818 mp3 player.
utterly spectacular analog-sounding output via koss porta-pro´s , which makes a match to rival much more expensive stuff - at least the porta-pro´s beat my other headphones , namely shure 530 , and sennheiser 280, which despite similar specs sound thin and lifeless , and gary explains why, and i quote him from an email (one of many always courteous, patient, prompt, unfailing) : "The copper wire that is used to wind the coil for the driver, they picked the right type of copper, thickness, and number of windings for the wire. The mylar material they used for the driver, (titanium coated mylar in later versions) much have been light weight enough yet still rigid to reproduce accurate audio. The holes in the back of the driver were enough to let the right amount of air pass through. Everything seems to have worked out pretty good with the Porta Pros, especially for the price. [ditto for the amp ! (my comment)] " .
my wish for a bass adjustment is so that finicky headphones like my above-mentioned might be thus ass-kicked to produce decent sound
Pros - Great neutral sound, nice detail and wide soundstage, great battery and price
Cons - Bass boost would be welcome, slightly bulky
This amp has really sound quality , neutral side and wide soundstage . It could have a little more bass with bass boost switch but no complains here since i do prefer a neutral sound to get the natural performance from my iems. Battery is great , i still haven't charged it yet . I like the volume knob it is very easy to adjust . The output could be a little easier to use. For example when using my pk1 it demands some force to put it , and get it out of output . The size is portable but could be less bulkier. These are just very minor details but the conclusion is that for the money , this amp has amazing sound quality , amazing battery life and best of all the best support you can get with Gary being a very friendly persons that offers lifetime warranty for his product , either if it is your fault or not
Honestly what else could you ask for ?
Very happy customer here
Pros - Strong minimal efficient amp with long battery life.
Cons - No options to alter the sound (tone control, bass/highs control)
Have had this small amp for a year or two and I use regularly with good sound quality, ample amplification, and satisfying listening through it. Gary, who builds these amps by hand is always ready to answer any query, and that is very re-assuring. Have also other portable amps, such as the JDS Objective O2 (which is my top amp and my very favourite), the Fiio E11, and the Little Bear 2.
However, even though the Objective O2 is my favourite for its clean sound, I never have any regrets when listening to the Electric Avenues PA2V2, as it has a very satisfying sound for its asking price, is strong and sturdy, and, at least in my opinion, quite good looking.
Battery life seems to be phenomenal, the batteries are easily rechargeable, and even when the batteries die out through frequent recharging (which will take quite some time, say years) they are easily replaced by new rechargeable batteries without any difficulty whatsoever.
The adjustment screws inside the amp are also very helpful to adjust its output according to what headphones you are using. Have used by AKG550 and Philips Fidelio X1 (both having relatively low ohm resistance) on this amp with good results - even though they both do not really require any amplification from my MP3 players, the sound does benefit and gain more punch and authority from utilising this amp.
So definitely highly recommended by me as I find it to be an enjoyable and not too expansive amp.
Pros - Excellent Bass, Easy to Use, Minimal Hiss/Interference
Cons - Edit: A little hard to tell where the battery life is, although it lasts forever.
First and foremost, let me say that Gary (the owner of Electric-Avenues) is seriously the friendliest, most helpful guy I have spoken to in a long while. He was so helpful throughout the question/ordering process. He made sure to answer every question I had very quickly, and even preset the gain on this amp for my Grado SR-80s (great pairing, btw). As for the sound quality, I can not describe it as well as others who have reviewed this amp here, but I can second everything they have said. This amp does an amazing job of bringing out the detail and resolution in music; I have listened to classical, jazz, techno, vocal, and it has performed quite well with each (through SR-80s AND ATH-M50s). I encourage you to read through these reviews of the PA2V2, and if you have any questions whatsoever, just email Gary! Overall, this is a great amp, and, at $70, you can't beat it.
delete this review. sorry
Pros - Build, audio, portability
Cons - gain adjustments inside, could use a big brother
The PA2V2 is an ideal candidate for a portable headphone amp. It works extremely well for my low impedance, inexpensive cans. And once I figured out the gain control adjustments (blue screws inside), it also works equally well for my high impedance, expensive cans. I listened to jazz, female vocals, crooners, classical, rock, country and new age and found it handled all. I don’t miss a DAC or sleek design.
One odd thing: I listened to it without batteries and heard noise in the background. I put batteries in and no more noise. I found out this is a known issue that fixes itself.
So, try it. For $60 it’s wonderful. The proof? The smile on your face when you turn it on with your fav headphones.
Pros - Small and light, punchy bass, long battery life.
Cons - Rather flimsy feeling power switch.
The PA2V2 was my very first experience with any headphone amplifier. I was not expecting it to make any difference, because the concept of an amp sounded silly to me. My ATH-M50s sounded fine running right out of my laptop, or my iPhone! After just a few minutes, the PA2V2 showed me just how wonderful amplifiers are. I have been rocking the PA2V2 for two months now, and I never leave my house without it.
BUILD & DESIGN: To start off, the build is fantastic. The plastic feels incredibly tough, and can definitely handle months of abuse. The only part I was worried about was the power switch on the top. It doesn’t feel weak or loose, but it’s much thinner than any part on the body, and sticks out very far. The PA2V2 is small enough to put into any backpack or laptop bag, and it’s so light that you’ll never feel it. Unfortunately, it’s too thick to slip in your back pocket. The design of the PA2V2 is exceptionally boring. It’s just a black box. I’m not saying it’s ugly, but it’s definitely not something that takes your breath away from the first sight.
SOUND: The first thing I noticed in the PA2V2 was the colorful bass and lows. It eliminated the muddy “womp womp womp” sound of the iPhone’s headphone jack, and allowed the bass to open up and really shine. Bass drums were punchy, synthesizers tickled your eardrums, and bass guitars were incredibly clear. The bass was punchy and fun to listen to, but never overpowering. The mids were very impressive, and brought out clarity in my music that my laptop could never do. I could hear fingers sliding down strings, loud slams coming from floor toms, and very rich vocals coming from almost any song. The highs were slightly disappointing. They still sounded great, but sounded as if they were coming directly from the iPhone jack. The soundstage was improved, but it would have been great to see the sound opening up a little more.
FINAL THOUGHTS: I could go on-and-on about every small detail about the PA2V2 and scrutinizing every aspect as carefully as possible, but I see no reason to. The PA2V2 a fantastic amp for the price, it’s that simple. I highly recommend the PA2V2 to anyone who owns headphones that cost over $100, you’ll never regret purchasing it.
Pros - Good build quality ,small....warm sound stage.
Cons - None
I contacted Gary,the owner of Electric Avenue,and had many,many questions for him,as I am new to head-fi,and using headphones .
He guided me through all I should need to know,and answered all my questions promptly.
One of the forum members suggested I get the Fiio e-10,which I did,,as it also has a dac feature,and a bass switch.....I still use it occasionally,when I/m listening to the internet radio.
The main amp though, is the PA2v2..it just seems to have a sound quality ,that is a little warmer,and stronger.
If anyone is considering a portable amp,I urge you to contact Gary at Electric Avenue,he makes a great product, and is a pleasure to deal with.