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MiniDSP IL-DSP Headphone amplifier

HooStat

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#1
Has anyone used this? What kind of headphone specs would you want to see to be sure it would play well with this (i.e., impedance, sensitivity)? I have some IEMs and am looking at some regular headphones and was curious as to whether I could play with EQ with these and still get good sound quality. The plus is that I can also use the mic for Zoom meetings.

https://www.minidsp.com/products/plate-amplifiers/il-dsp-headphone-amp
 

bobbooo

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Aug 30, 2019
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#4
Unfortunately this device seems to have issues with incorrect implementation of the EQ filters which can lead to clipping, and bizarrely for a mobile device it has no app so you have to connect it to a PC to make any changes to the EQ, which severely limits its utility. A better portable device with parametric hardware EQ, controllable via an app, optional LDAC Bluetooth connectivity, and much higher output (up to 4V balanced) would be the Qudelix 5K.
 
OP
H

HooStat

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Thread Starter #5
Wow. That device looks great! I just bought an RME ADI DAC, but will get that too and play around with it. It might work great with my IEM for conference calls, and for travel!
 

samysound

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#7
Has anyone used this? What kind of headphone specs would you want to see to be sure it would play well with this (i.e., impedance, sensitivity)? I have some IEMs and am looking at some regular headphones and was curious as to whether I could play with EQ with these and still get good sound quality. The plus is that I can also use the mic for Zoom meetings.

https://www.minidsp.com/products/plate-amplifiers/il-dsp-headphone-amp
no mic but the more sufficient power output, better processing and nicer DAC
https://www.minidsp.com/products/plate-amplifiers/ha-dsp-headphone-amp
also triple the cost...
 

Cahudson42

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#8
If the Qudelix does not have enough oomph, as to me seems the case with my (unbalanced) HE400i, I add my NX3s ($70). Not quite as good as my Liquid Spark, but still pocketable. Chain:

LG Rebel TracFone ($29) >OTG USB 3-wire powered cable>Qudelix>NX3s>HE400i

Using Oratory 1990 Harmon PEQ for the HE400i, sounds decent to me. Qudelix app on LG Rebel, simultaneously active to control Qudelix via bt. (No android app for IL-DSP rules it out for me.)
 
Last edited:

AnalogSteph

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#9
Unfortunately this device seems to have issues with incorrect implementation of the EQ filters which can lead to clipping,
No pre-gain setting? That would be a bit inconvenient for use on a mobile device in particular. Seems a bit of a silly oversight - hopefully this could be added with a firmware update.
 

Bugal1998

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#10
Has anyone used this? What kind of headphone specs would you want to see to be sure it would play well with this (i.e., impedance, sensitivity)? I have some IEMs and am looking at some regular headphones and was curious as to whether I could play with EQ with these and still get good sound quality. The plus is that I can also use the mic for Zoom meetings.

https://www.minidsp.com/products/plate-amplifiers/il-dsp-headphone-amp
I bought one a couple of months ago when I was headphone shopping... I've only used it once, because I settled on the Hd800s which the IL DSP amp can't power. I just need time to list it and it will be up for sale. I have no idea how it would perform with less power hungry headphones or IEMs.
 
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