And speaking of Cymbacavum acoustic measurements, here's Mr. T telling it like it is, re: LH Labs Verb earphone:
“When shipments of the Verb began going out to the general populace in March last month, however, the tide began to shift. While there were positive reviews of the product from individuals largely unknown to the veteran enthusiast community for IEMs, quite a few experienced listeners began coming out in droves to complain about poor sound quality in the Verb. Our very own shotgunshane was one of these backers.
He received his LH Labs Verb and immediately remarked (internally to us at CYMBACAVUM) that it “sucks” and was “muddy, bassy, veiled, and with crappy resonances all over”. We were genuinely surprised. Those of you who have been readers of CYMBACAVUM know that most of us lean toward a more neutral sound signature, but we can appreciate a high-performance bassy signature when it is presented to us, and shotgunshane assured the rest of us that this was not merely a bass issue. Apparently, on top of sloppy bass, it had no midrange and bad ringing in the treble region.
Meanwhile, more troubling revelations came to light about a possible spurious origin to the Verb. Whilst LH Labs has maintained that the Verb was designed and developed exclusively for their own company, the Xuma PM73, a low-cost, mass-produced IEM sold at New York based Photo/Video superstore B&H for about $25, is a near identical product to the Verb, and had come out years before the Verb was even released.”
Source: LH LABS VERB: INDEFENSIBLY BAD