The Sub-$100 Portable Amps Shootout – 10(+1) amps compared - Page 5

Quote:

Originally Posted by ClieOS 


I do like the ZO2.3 I have and actually use it for bass boost more than I use E11 as amp. The problem is it hisses with some of my low impedance, high sensitivity IEM so I can't use all of them with ZO2.3. As an amp, it isn't the best around; but as a bass booster, it is great. That's why I only recommend ZO2.3 for those who want a bass boost first and an amp second.
Haven't heard the D7, and likely won't as I have little use for another USB DAC for now. When it comes to iBasso, my attention is on their ultra-portable amps.
Do note, capable of driving a headphone and driving it well are two different things, especially if you put synergy into the mix.

ah yes, its not really an amp - but it does bring a different sound signature :)

I had loads of hissing with the E11 - 0 with the ZO2

?

Hi All,

Was doing a little research on the PA2V2 and was asking Gary about the overcharging issue...his response was as follows:

"RECHARGING THE BATTERIES

Once the batteries are installed inside Pocket Amp 2, you will not have to open the amp up for about 500 to
1000 recharging cycles, which should easily amount to three or four years of normal use. Pocket Amp 2 has
a built in recharging circuit. When the AC adpater is plugged in, the batteries will automaticaly begin to
recharge, whether the amplifier is in the ON or OFF position. If the AC adapter is connected, and the amp is
ON and being used, the batteries will not be overcharged. However, if the amplifier is OFF, the AC adapter
should not be plugged in for periods longer than eight hours to avoid overcharging."

You can also now adjust the gain using two screws in the unit.

He is also putting them out using clear plastic at the moment as the red plastic he was using has gone off the market:

www.electric-avenues.com/pa2v2_clear.jpg

Hi ClieOS,

Sorry about that...I copied and pasted the wrong post contents :)...silly me...below is his response regarding the issues with charging...

"The information on the Opertation Instructions page is a little outdated. The website is currently being remade and will be ready in one more month.

The good thing with the amps today is that when the batteries inside get full, the charging rate slows down to a point where it is just keeping them topped up (no matter if the amp is on or off). So it is not possible to overcharge the batteries."

So he has updated the units to actually never overcharge, thus eliminating the need to watch the unit if it isn't on and being used while charging.

While there isn't specific info on hardware updates, Gary has made a few changes to PA2V2, like how all amps with serial numbers #8000 and beyond have better EMI shielding, and from #5000 there were a few parts updated, but I'm not in on that specific update.

I have two PA2V2 amps, both previous to #8000 but already having gain switches, and curiously while my first amp did have rather noticeable EMI, my second one (almost near #8000) did have less EMI, while still having it though.

Does your casing have markings or is it all black?

Quote:

Originally Posted by ClieOS 

All black.

All the casings with markings have better EMI shielding, while the all black ones are supposed to have the same shielding, but I can't confirm that all do.

How severe is EMI with yours?