Audiophilepure

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“The radiator works the same as a port,” explained Klipsch’s principal engineer, Roy Delgado, a 30-year veteran of Klipsch Audio Technologies who initially worked under Paul W. Klipsch himself. “Because of the smaller air volume of the box, the drone (aka passive radiator) offers the advantage of allowing us to adjust compliance. If it’s done right, the drone extends the bottom end. Basically you’re creating a Helmholtz resonator. You cause the air to resonate at a certain frequency and that extends the bottom end. A drone does the same thing.”

At a time when the US is experiencing an outbreak of measles, the Forte III remains au courant by having—you guessed it—Mumps. Literally named for the swollen salivary glands they sort of resemble, Roy Delgado’s patented Mumps are curved 1″ ridges that round off the interior corners within the throat of the K-703-M midrange horn. The goal, according to Klipsch’s website, is “to improve coverage and control of the key mid-frequency band.”

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“Our test pair arrived in a gloss black, with gloss white and an espresso grain finish also available. No matter which finish you choose, the front and the top face of the speakers are finished in matte black – no doubt a move to keep the cost more reasonable. Two sets of binding posts are available for those wanting to bi-wire, but for the duration of our review, the 700Fs were used with a single pair of speaker cables and the jumpers intact. The quality of the finish on the side panels is as smooth as the $35,000/pair Personas we reviewed previously.

Again, this is where building everything in house is a benefit – the same people doing the cabinets on Paradigm’s top speakers are working on these too. However, it’s more than just the quality of the finish on the outer walls of the cabinet that impress. Looking at the 700Fs very carefully reveals the smoothness of the bevels on the front panel and how cleanly the drivers are mounted. There is no visible hardware. The cabinet corners intersect perfectly. This is the level of quality you demand from a $10k pair of speakers. Not something you expect for this price – a definite bonus to qualityphiles. These are speakers that you will be very proud to own.

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“Also, while the Formation ecosystem may not rely on your own home’s network to remain functioning, that doesn’t save it from the occasional drop out with respect to some connections–specifically Bluetooth. During my month-long audition of the Formation Duo and Formation Audio, when connected to the Sony display via Bluetooth I endured three drop outs. Sound would suddenly stop transmitting to the speakers, and revert back to the display. That’s three drop outs in the span of one month, give or take. This was easily remedied simply by re-selecting the Formation Duo speakers from the Sony’s Bluetooth devices menu, but nevertheless it did happen. When using the Formation Audio connected to the Vizio P-Series Quantum, I noted only one drop out for a total of four in one month.”