iBasso DX300 Qualcomm Snapdragon 660 Octa-core 6GB RAM ******NEW Firmware 2.00 Android 11******
Jan 12, 2021 at 9:30 AM Post #1,742 of 14,596
Should the dx300 be able to power headphones such as the hd6xx?
 
Jan 12, 2021 at 9:32 AM Post #1,743 of 14,596
Jan 12, 2021 at 9:43 AM Post #1,744 of 14,596
Should the dx300 be able to power headphones such as the hd6xx?

I think should.

When the DX160 and DX220 can, why shouldn't the DX300?

Powering is one thing, properly driving with full dynamics, mids body, enough tight and fast bass slam when needed is something else. So they can power them but not drive to their full potential. But MAX can and DX300 also should.
 
Jan 12, 2021 at 9:52 AM Post #1,745 of 14,596
I think should.



Powering is one thing, properly driving with full dynamics, mids body, enough tight and fast bass slam when needed is something else. So they can power them but not drive to their full potential. But MAX can and DX300 also should.
When i trust a table from this forum, you would need 199mW at 300Ohm to drive the HD600 and 167mW at 300Ohm to drive the HD650 (HD6XX) properly.
The DX300 would only deliver 132mW at 300Ohm on balanced output, when i am not wrong.
 
Last edited:
Jan 12, 2021 at 9:58 AM Post #1,746 of 14,596
When i trust a table from this forum, you would need 199mW at 300Ohm to drive the HD600 and 167mW at 300Ohm to drive the HD650 (HD6XX) properly.
The DX300 would only deliver 132mW at 300Ohm on balanced output, when i am not wrong.

OK, my bad. I didn't check the numbers properly.
 
Jan 12, 2021 at 10:23 AM Post #1,747 of 14,596
When i trust a table from this forum, you would need 199mW at 300Ohm to drive the HD600 and 167mW at 300Ohm to drive the HD650 (HD6XX) properly.
The DX300 would only deliver 132mW at 300Ohm on balanced output, when i am not wrong.

That is one weird part where I read some impressions from people who enjoy listening to their HD600/650 driven directly from sources that have fraction of the DX300 output power, but maybe they are referring to driving them loud enough instead of to its full potential. But then, "full potential" is subjective since everybody hears things differently. For the record, I don't have either HD600/650, I'm more IEMs vested :)

Just from my own personal experience, specs on paper doesn't always align with what I'm hearing. But if we are after the paper spec, iBasso has AMP11 with the following:

1610464842995.png
 
Jan 12, 2021 at 10:27 AM Post #1,748 of 14,596
When i trust a table from this forum, you would need 199mW at 300Ohm to drive the HD600 and 167mW at 300Ohm to drive the HD650 (HD6XX) properly.
The DX300 would only deliver 132mW at 300Ohm on balanced output, when i am not wrong.

I'm getting different results from those using 2 online tools and they give me the same results from one another:

1610464927165.png


Here:
https://www.headphonesty.com/headphone-power-calculator/
http://www.digizoid.com/power.php

That is for 300ohms, 103db/1Vrms (not more common db/1mw)

Seems to me the DX300 will be more than capable to drive the HD6XX with some headroom since it able to put up 7.1Vrms with more than enough current.
 
Jan 12, 2021 at 10:31 AM Post #1,749 of 14,596
That is one weird part where I read some impressions from people who enjoy listening to their HD600/650 driven directly from sources that have fraction of the DX300 output power, but maybe they are referring to driving them loud enough instead of to its full potential. But then, "full potential" is subjective since everybody hears things differently. For the record, I don't have either HD600/650, I'm more IEMs vested :)

Just from my own personal experience, specs on paper doesn't always align with what I'm hearing. But if we are after the paper spec, iBasso has AMP11 with the following:

1610464842995.png
They are talking about this , but what I am curious about is about their tables of howmuch power is needed for a headphones.....
DE4AF9A1-2B11-4AD2-8909-981C35DF3D13.jpeg
 
Jan 12, 2021 at 10:46 AM Post #1,750 of 14,596
They are talking about this , but what I am curious about is about their tables of howmuch power is needed for a headphones.....
DE4AF9A1-2B11-4AD2-8909-981C35DF3D13.jpeg

I talk about this table:

Prompted by the higher than expected sensitivity of the HD800, I spent some time creating a spreadsheet of headphones output power required at different level, using their official sensitivity spec to scale with. I thought it was quite interesting after looking at the results, so I'm going to share.

The list of values is based on:

-Power required to reach 120db. (Note, some headphones cannot actually reach this level because it exceeds their max power capability. This is just theoretical.)

-nominal impedance value. (some headphones change impedance depending on frequency, so it wouldn't be accurate in those cases. example: HD800 goes from 300 to almost 650 ohm, so the voltage required to hit the required power output is over 11v in that case, not just the 7 something in the list)


Ordered by Power Required:
HE5 - 1995 mw - 282 ma - 7.06v rms
K204DF - 1585 mw - 51ma - 30.84v rms
K701 - 510 mw - 91 ma - 5.62v rms
HD800 - 210 mw - 26 ma - 7.94v rms
HD600 - 199 mw - 26 ma - 7.74v rms
HD650 - 167 mw - 24 ma - 7.08v rms
RS1 - 158 mw - 70 ma - 2.25v rms
ER4S - 100 mw - 32 ma - 3.16v rms
RE0 - 100 mw - 39 ma - 2.53v rms
T1 - 63mw - 10 ma - 6.15v rms
SRH840 - 63 mw - 38 ma - 1.67v rms
Westone3 - 20 mw - 26 ma - 0.77v rms
E4C - 13 mw - 21 ma - 0.60v rms
GR8 - 1.6 mw - 3.6 ma - 0.44v rms
UE-18 Pro - 2.7 mw - 11 ma - 0.24v rms
Triple-Fi 10 - 2 mw - 7.9 ma - 0.25v rms
SE530 - 1.3 mw - 6 ma - 0.213v rms
ES3X/UM3X - 0.4 mw - 2.7 ma - 0.15v rms

Ordered by Current Required:
HE5 - 1995 mw - 282 ma - 7.06v rms
K204DF - 1585 mw - 51ma - 30.84v rms
K701 - 510 mw - 91 ma - 5.62v rms
RS1 - 158 mw - 70 ma - 2.25v rms
RE0 - 100 mw - 39 ma - 2.53v rms
SRH840 - 63 mw - 38 ma - 1.67v rms
ER4S - 100 mw - 32 ma - 3.16v rms
HD600 - 199 mw - 26 ma - 7.74v rms
HD800 - 210 mw - 26 ma - 7.94v rms
Westone3 - 20 mw - 26 ma - 0.77v rms
HD650 - 167 mw - 24 ma - 7.08v rms
E4C - 13 mw - 21 ma - 0.60v rms
UE-18 Pro - 2.7 mw - 11 ma - 0.24v rms
T1 - 63mw - 10 ma - 6.15v rms
Triple-Fi 10 - 2 mw - 7.9 ma - 0.25v rms
SE530 - 1.3 mw - 6 ma - 0.213v rms
GR8 - 1.6 mw - 3.6 ma - 0.44v rms
ES3X/UM3X - 0.4 mw - 2.7 ma - 0.15v rms

Ordered by Voltage Required:
K204DF - 1585 mw - 51ma - 30.84v rms
HD800 - 210 mw - 26 ma - 7.94v rms
HD600 - 199 mw - 26 ma - 7.74v rms
HD650 - 167 mw - 24 ma - 7.08v rms
HE5 - 1995 mw - 282 ma - 7.06v rms
T1 - 63mw - 10 ma - 6.15v rms
K701 - 510 mw - 91 ma - 5.62v rms
ER4S - 100 mw - 32 ma - 3.16v rms
RE0 - 100 mw - 39 ma - 2.53v rms
RS1 - 158 mw - 70 ma - 2.25v rms
SRH840 - 63 mw - 38 ma - 1.67v rms
Westone3 - 20 mw - 26 ma - 0.77v rms
E4C - 13 mw - 21 ma - 0.60v rms
GR8 - 1.6 mw - 3.6 ma - 0.44v rms
Triple-Fi 10 - 2 mw - 7.9 ma - 0.25v rms
UE-18 Pro - 2.7 mw - 11 ma - 0.24v rms
SE530 - 1.3 mw - 6 ma - 0.213v rms
ES3X/UM3X - 0.4 mw - 2.7 ma - 0.15v rms

Summary:
This list gives the trend that headphones that we know improve greatly with an amp are near the top of at least one, if not all lists. It also shows that a great amp must be able to at least both deliver high current and high voltage. Otherwise there are headphones that cannot reach their potential. That HE5 is a monster to drive!

On the other side of the spectrum, you can see IEMs so sensitive to the slightest voltage, thus picking up all kinds of noise in the system. And you can clearly see how the ER4S and RE0 behave much like full size headphones, probably devoid of "hiss" problems other IEMs suffer through. This also shows how they don't work so well in headphone jacks of portable players, they do require much power capabilities than other IEMs.
 
Jan 12, 2021 at 1:11 PM Post #1,753 of 14,596
Bloom Audio is the best. Actually going to compare the DX300 with the ifi Signature Dac/amp and decide on which one works best with my LCD-3. Haven’t found a DAP yet that does well with it.

Do let us know how it goes, will you :) ?
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
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Jan 12, 2021 at 1:25 PM Post #1,755 of 14,596
You are everywhere , aren’t you :)? Glad to see active reps like you are

Well, Sauron is my reference and his large demonic eye saw pretty much everything :)
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
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