The spatial distribution, which brings an entire wall alive with sound, contributes greatly to the sense of realism. It had all the room-filling potency of the best acoustic-suspension systems, combined with the tautness and clarity of a full-range electrostatic speaker. Its low-bass response was difficult to credit to such a compact system. This impression was confirmed by its tone-burst response, which was uniformly excellent across the frequency spectrum. Its clarity and definition when reproducing complex orchestral passages were, in the writer’s opinion, unsurpassed by any other speaker he has heard. The Bose 901 had an utterly clean, transparent, and effortless sound. Because of its unconventional mode of operation, I rather doubted that any frequency-response measurements I could make would account for the remarkable realism of its sound. "I am convinced that it ranks with a handful of the finest home speaker systems of all time. The output signal is of approximately the same level as the input signal."Īnd this to say about the system as a whole: We measured its distortion at less than 0.13 percent for any output under 3 volts, which is greater than would be required with any amplifier we know of. He had this to say about the Bose equalizer: "The active equalizer introduces no perceptible distortion. Julian Hirsch, an objectivist audiophile, emphasized measured performance of audio gear from the earliest days of this hobby, and loved the Bose 901 Today, the Absolute Sound offers 6 recommended digital interconnects $1000 and higher. The Absolute Sound was founded after Harry Pearson was unhappy with the sound quality of the Bose 901's he purchased. It's likely that the Bose 901's spatial performance, in a well configured environment, is also enhancing the perceived sound quality despite the frequency response irregularities. Science has shown us that listening in stereo can make it harder to hear differences between speakers (as compared to mono). In a way, it sounds like a Magnepan without a true ribbon with less transparency and much more bass. When compared to a traditional audiophile system, I would describe the Bose as a third spatial presentations beyond headphones or dynamic speakers. When appropriately compared to a lifestyle speaker peer, I can confidently state that I prefer the 901's sound presentation over a Sonos speaker or Devialet Phantom. For all the harassment that Bose received from audiophiles, especially in the era of the Acoustimass 5, the actual in-room sound quality of the Bose 901 can best described with a simple "Wow." Maybe it was because my expectations were so low going into my listening tests, or I've simply lost my audiophile credibility card or suffer from early dementia, but I thoroughly enjoyed the in-room experience from the 901.
#BOSE 901 EQUALIZER SERIES#
I recently tried a Series VI in my own home and came around incredibly impressed with the audio. In Erin's measurements, he noted that the equalizer added an extreme level of distortion.
The Bose 901 Series V has been measured on the Klippel NFS.
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