Posted by GM [ 4.137.211.204 ] on December 16, 2005 at 11:19:34:
In Reply to: Re: How much do the harmonics matter? posted by Bob Brines on December 16, 2005 at 09:13:31:
Greets!
Straight ML-TLs are two summed resonant structures of which one is a 1/4 WL and the other a 1/2 WL resonator, so there's an unbalanced number of both even and odd order harmonics, ergo the system is non-harmonic in its passband, comb filtering with the driver's harmonics, screwing up its response until the vent's output has decayed to ~ -25 dB.
GM
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