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Mini Box e+ - Page 2

post #16 of 89
Thread Starter 

Minibox e + Gain

I think that the Ptos is the gain.

I have to use it in different positions for the PK1s and the Etys.

Regards
post #17 of 89
There are portable amps that have both a 75ohm thingy (PtoS equivalent) and a Gain setting. The XM5 for example.
post #18 of 89
Can someone post the pictures of the internals?
post #19 of 89
The PtoS puts a low value resistor in series with the output for low impedance IEM use. Some think it improves the sound (it does seem to improve just perceptably my ew9s), it also reduces the output level.

The MiniBox does not need a gain switch because the level control and the noise floor of the amp are perfectly adiquate.

The bass boost is quite mild (+5dB at 30 HZ and what looks to be a 6dB per octave slope) and just gives a slight low end increase weight. But this is probably not enough to compensate for very bass deficient phones.

A couple of pictures of the original version are attached (the + looks virtually the same appart from the battery and the led next to the charging socket.



post #20 of 89
Quote:
Originally Posted by bobloblaw View Post
$169 in the US is pretty solid, too. As silly as it is, though, I have a hard time with the dial volume control. Looks a little cheap, IMO.
Actually the knob is a nice feature. Easy to manipulate in ones shirt pocket. Recessed enough not to be accidently bumped. No knob in the way when plugging/unplugging.
post #21 of 89
How does this amp compare with the Ibasso P2? I am between this two amps to go with my ipod classic.
post #22 of 89
Quote:
Originally Posted by mrarroyo View Post
I had a MiniBox-E and a MiniBox-E+ is on its way.

I enjoyed the MiniBox-E tremendously and IMO it beats amps costing not only more but amps which many think of highly. If you look at the comparison I made of 33 portable amps you will see this baby ranked quite high.
Where is the review of the "33 portable amps"??? I'm aware of Skylab's "32" portable amp review, but I haven't come across yours. Please point me in the right direction, so I can e-du-ma-kate myself. ,-)

much thanXs,

angel
post #23 of 89
Quote:
Originally Posted by ammatos View Post
Where is the review of the "33 portable amps"??? I'm aware of Skylab's "32" portable amp review, but I haven't come across yours. Please point me in the right direction, so I can e-du-ma-kate myself. ,-)

much thanXs,

angel
Heres the link to "33 portable amps review" by mrarroyo

http://www.head-fi.org/forums/f5/33-...review-250223/
post #24 of 89
Quote:
Originally Posted by dle4e_2005 View Post
Heres the link to "33 portable amps review" by mrarroyo

http://www.head-fi.org/forums/f5/33-...review-250223/

many thank you'z,

angel
post #25 of 89
Does anyone try to use other opeamps such like OPA627 instead of AD8610?

My first MiniBox-E+ that is producted at Dec. 2007 has been dead due to over-discharging. After it I have recieved the replacement that is producted at Jan. 2008.

I think two MiniBox-E+s are different on sound tendency. Whereas the Dec. version tends to be tight, the Jan. tends to be wide. Is this my illusion?
post #26 of 89
I have received my MiniBox-E+ and it is such a wonderful amp. Mine has about 120 hours of burn in and I hope to due an in depth review soon.

For those on the fence do not hesitate, as you have read above it is a fantastic unit, very compact and the op-amps are socketed. I sure hope to due some op-amp rolling in the near future.
post #27 of 89
Can't wait Miguel, I've been wanting to ask you how the new E+ was compared to your original E!!

I'm pretty sure of the outcome that is why the E+ is my next amp to purchase.

This will bring my count on portables up to 3, got the Toma first, Headsix (That darn Rob was no help on this choice :-0) LOL

The E+ should give me my 3rd amp and lots of choices to run them in different configs (DAPS,LODS & Cans):-)
post #28 of 89
Hmm, the same thing happened with my E+ that I purchased in november 2007; it died of over-discharging.

I noticed that the soundstage was more compressed with my older amp as opposed to the replacement I recently received . It also seems as if the overall signature is much more neutral as it doesn't add quite as much of its own 'flavour'. Then again, I still in the process of burning in (< 50 hours).
post #29 of 89
Doppler, I need you and 4U to break down over-discharging for me as I have full knowledge of over-charging but over-discharging is a new one 4 me!

I thought when a unit runs out of juice it's time to re-charge. (are ya'll getting some kind of run time out of your E's once the juice has run out and by what degree?) or are you just talking you have charged it so many times it no longer holds a very long charge ala the iPod which IMHO eat rechargeable batteries for what they are designed for. HBO
post #30 of 89
Perhaps over-discharge iwould be an incorrect term for my problem. My amp, even though it was fully charged, would not turn on. After emailing Fang, he said it was a problem with my battery so I sent it back for a replacement.

Anyhow, when I plugged the ac adapter into the amp without connecting it to an outlet, the red LED on the adapter would turn on. I'm assuming then that the battery was fine however, there was something wrong with the circuitry.
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