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Re: Why Do TEF Systems read 3-5 dB high ?



The second “Blue”  graph shows the upper end of the NYC sub shootout to show the difference between the TH-115 and the EV-2181. The EV appears to be about 1 dB higher at 100 Hz.


Your graph shows the TH-115-8  as 5 dB higher than the EV-2181 at 100 Hz.


I made a mistake in the post, saying if the published specs are correct, the TH-115 should be around 6 dB higher, I forgot to account for the difference in impedance (8 ohm vs 4 ohm) so the TH-115 should show  2 dB more level than the EV-2181, but it shows 1 dB less, a 3 dB difference.