or Connect
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps ›  iBasso D42 "Mamba" with dual dacs! !! Hey Hey! Improved Starting on Page 76 .
New Posts  All Forums:Forum Nav:

iBasso D42 "Mamba" with dual dacs! !! Hey Hey! Improved Starting on Page 76 . - Page 8

post #106 of 1153
Quote:
Originally Posted by HiFlight View Post
I must say that the dual DACs really sound fine, even right out of the box with only an hour or so of use. While the amp can be powered by USB or battery power when using a USB signal input, the amp can only be used with battery power when using the Aux input.

I really like the 9v internal contacts...real contacts, not the cheap snap-in connector used by most 9v components.

After just a brief audition of the stock opamps, of course I just had to roll to the D4 Topkit!

I am using 9.6v 230mah PowerEx rechargeable cells, now I need to see what the run time is when using only the aux input/amp. BTW, the battery can be changed is less than a minute by just removing 2 thumb nuts.

It looks to me at this point as if iBasso has another real winner!
How bout a comparison with the D10? Edit - found the comparison

What's your top kit?
post #107 of 1153
Quote:
Originally Posted by vkvedam View Post
I've sent an email to iBasso about the release of D11. Got a response advising that they have no intention of releasing something like a D11, but in the next 6 months there would be an improved version of the D10.
Any details?
post #108 of 1153
Quote:
Originally Posted by vkvedam View Post
I've sent an email to iBasso about the release of D11. Got a response advising that they have no intention of releasing something like a D11, but in the next 6 months there would be an improved version of the D10.
In the next iteration, iBasso should make the housing bigger for the BG caps.
post #109 of 1153
Okay, really confused with the power requirements with the Mamba. It can be either powered by USB (5v) or a 9v battery, I understand. Is the amp section still accessible when connected via the USB? If that's so, how odes it sound compared to the 9v option?

Thanks!
post #110 of 1153
They haven't given me any details about the future D10.
post #111 of 1153
The way I understand it is the DAC is always powered from the USB, 5vdc. If there is no 9vdc battery inside, the amp will also draw power from the USB, 5vdc. If there is a 9vdc inside, the amp will always draw power from the 9vdc battery. Is this correct?

If the 9vdc battery is drained and cannot provide power to the amp, does it draw power from the USB 5vdc?
post #112 of 1153
I have a straight forward question regarding the d4 -- 1/4 or 1/8th? it doesn't say in the product info on the ibasso website, and I can't really tell form the pictures because there is no point of comparison. I figured it would be 1/8th since it's marketed toward the whole portable world but I would like to be sure.
post #113 of 1153
Quote:
Originally Posted by wuwhere View Post
The way I understand it is the DAC is always powered from the USB, 5vdc. If there is no 9vdc battery inside, the amp will also draw power from the USB, 5vdc. If there is a 9vdc inside, the amp will always draw power from the 9vdc battery. Is this correct?
Not quite correct. When the USB input is active, the power to the amp is selectable via the rear switch. One can select 5v or 9v for the amp. The DAC is always powered by the USB. If the 5v position is selected, no power at all is used by the battery. In fact, the switch does not even need to be on in order for the pass-thru DAC output to be used.

Without USB, the amp can only be used with the selector switch in the 9v position.
post #114 of 1153
Quote:
Originally Posted by akdmx View Post
I have a straight forward question regarding the d4 -- 1/4 or 1/8th? it doesn't say in the product info on the ibasso website, and I can't really tell form the pictures because there is no point of comparison. I figured it would be 1/8th since it's marketed toward the whole portable world but I would like to be sure.
Both Headphone output and Aux In/Out are both 1/8".
post #115 of 1153
Quote:
Originally Posted by HiFlight View Post
Not quite correct. When the USB input is active, the power to the amp is selectable via the rear switch. One can select 5v or 9v for the amp. The DAC is always powered by the USB. If the 5v position is selected, no power at all is used by the battery. In fact, the switch does not even need to be on in order for the pass-thru DAC output to be used.

Without USB, the amp can only be used with the selector switch in the 9v position.
Thanks, I forgot about the switch at the back.

USB selected = amp is powered from USB 5vdc.
Battery selected = amp is powered from 9vdc battery.
Battery selected and no battery = amp is dead.
Battery selected but battery is drained = amp is dead.

Is this correct?
post #116 of 1153
Adding to that, is there any audible difference in the 5vdc from the 9v battery outputs?
post #117 of 1153
Thread Starter 
Quote:
Originally Posted by wuwhere View Post
Thanks, I forgot about the switch at the back.

USB selected = amp is powered from USB 5vdc.
Battery selected = amp is powered from 9vdc battery.
Battery selected and no battery = amp is dead.
Battery selected but battery is drained = amp is dead.

Is this correct?
Yep.
post #118 of 1153
Thread Starter 
Quote:
Originally Posted by jjsoviet View Post
Adding to that, is there any audible difference in the 5vdc from the 9v battery outputs?
Depending upon what you are driving but I do hear a slight difference with the JH13 Pro IEM's. With the 9 volt selected I hear a little cleaner highs and that could be the battery vs DC from the USB.
post #119 of 1153
Oh. My phones are pretty hard to drive, the K518 and the HD 238. I hope they really benefit from either power option.
post #120 of 1153
I may have to replace my D2 Boa with one of these...
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Headphone Amps
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps ›  iBasso D42 "Mamba" with dual dacs! !! Hey Hey! Improved Starting on Page 76 .