CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

Lobby => IEM Measurements => Topic started by: Marvey on February 09, 2013, 09:41:13 PM

Title: Heir 3ai Measurements
Post by: Marvey on February 09, 2013, 09:41:13 PM

Heir 3ai Measurements

(http://www.changstar.com/index.php?action=dlattach;topic=789.0;attach=2949;image)

Unlike the 4ai, channel imbalance is evident with the 3ai. I did not purposely move the right channel down on the graph. Measurement was retaken to confirm (took IEMs off, re-setup the micro and coupler, etc.)

Title: Re: Heir 3ai Measurements
Post by: anetode on February 09, 2013, 09:57:32 PM

Talk about v-shaped. Is the 4k dip in these heirs because of the crossover or a resonance?

Title: Re: Heir 3ai Measurements
Post by: Marvey on February 10, 2013, 01:18:43 AM

Crossover related to a specific mid/tweet driver I think. I'm sure there are more knowledgeable people than me who can chime in.

Title: Re: Heir 3ai Measurements
Post by: Sforza on February 10, 2013, 06:32:29 AM

Question for the more knowlegeable guys here; does the 3ai have the same BA driver configuration as the UM3X but with seemingly worse matching? Knowles TWFK+CI afaik.