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Author Topic: Monoprice 9927 / 8320 IEM Measurements  (Read 4274 times)

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Marvey

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Monoprice 9927 / 8320 IEM Measurements
« on: March 28, 2013, 04:43:53 PM »
Monoprice 9927 / 8320 IEM Measurements



Pre-measurement subjective impressions:
  • I wish there was more bass. Could have a warmer presentation. I wouldn't say it's thin, but more bass to lower mids would help out.
  • Sounds cheap - not great at technicalities, but balance is OK, that is no upper mid/lower treble nasties.
  • OK at low volumes.
  • At moderate to high volumes, seems like there is a ~4k peak?
Measurement notes:
  • Yep, that's a driver imbalance. Changed tips, re-measured, re-seated, re-measured, etc. x3. Same result.
« Last Edit: March 28, 2013, 05:51:35 PM by purrin »
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Marvey

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Re: Mystery IEM Measurements
« Reply #1 on: March 28, 2013, 04:53:00 PM »
Burst decays
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Marvey

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #2 on: March 28, 2013, 06:04:22 PM »
8320 (the silver one)
  • Much better matching
  • Little bit more of a peak at 3k
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donunus

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #3 on: March 28, 2013, 06:14:56 PM »
I really dont understand how these translate to real life. How do those sound vs full size cans? Is the peak before the dip really really real soundwise? Those must sound like shit.
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Marvey

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #4 on: March 28, 2013, 06:16:31 PM »
Harmonic distortion. 90db SPL/A

Actually not bad for an IEM.

Compare to others:
(FYI, BA type drivers tend to have interesting HD characteristics)
http://www.changstar.com/index.php/topic,740.msg17003.html#msg17003
http://www.changstar.com/index.php/topic,437.msg7518.html#msg7518
« Last Edit: March 28, 2013, 06:41:01 PM by purrin »
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Marvey

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #5 on: March 28, 2013, 06:17:23 PM »
Quote from: donunus on March 28, 2013, 06:14:56 PM
I really dont understand how these translate to real life. How do those sound vs full size cans? Is the peak before the dip really really real soundwise? Those must sound like shit.

For $7, they sound OK.
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donunus

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #6 on: March 28, 2013, 06:20:37 PM »
ahh 7 bucks ok now it makes sense :)
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Marvey

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #7 on: March 28, 2013, 06:35:52 PM »
The ER-4S have a similar FR, but the upper mid / lower treble lift is not as strong: http://www.changstar.com/index.php/topic,436.msg7511/topicseen.html#new

A little bit more warmth and less peakage at ~4k would make this IEM more listenable.
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donunus

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #8 on: March 28, 2013, 06:50:15 PM »
You know I havent listened to the etys. i am not much of an iem person. I wonder though if these can even kill the ksc75s. When coupled with plantronic pads on top of the stock pads, those koss cans gains bass like a teenager discovers his first cumshot hahahaha
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Anaxilus.

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Re: Monoprice 9927 / 8320 IEM Measurements
« Reply #9 on: March 28, 2013, 08:19:50 PM »
Quote from: purrin on March 28, 2013, 06:35:52 PM
The ER-4S have a similar FR, but the upper mid / lower treble lift is not as strong: http://www.changstar.com/index.php/topic,436.msg7511/topicseen.html#new

A little bit more warmth and less peakage at ~4k would make this IEM more listenable.


Tips!  I think you mentioned the silvers were a bit bassy w/ the tips I had on them.


One thing these have that even megabuck IEMs don't, openness!  As long as isolation isn't important, they are incredibly open sounding.  Plus they have a coherent signature that makes sense and doesn't screw up your music unlike some $500+ IEMs.


I'm disappointed w/ the QC on the black one, I'll have to measure the other black set I have.  If the OC is too inconsistent that's going to mess w/ my experiments.
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