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Reference MM de Capo iDescription: Two-way reflex-loaded loudspeaker for use with stands 26-28" high (not included). Drive-units: 1" impregnated fabric-dome tweeter, 7" woven carbon-fiber cone woofer. Impedance: 8 ohms. Sensitivity: 92dB/W/m. Frequency response: 44Hz-20kHz, ±3dB. Crossover frequency: 3kHz.Read more at https://www.stereophile.com/content/reference-mm-de-capo-i-loudspeaker-specifications#UD19DLAphbZDoSl2.99There's a BE version as well.
I agree with the statement that Reference MM de Capo measure poorly. Actually, Rick was being nice, they are horrid!
I agree with the statement that Reference MM de Capo measure poorly. Actually, Rick was being nice, they are horrid!https://www.soundstagenetwork.com/measurements/reference3a_mmdecapo/Dr Floyde Toole spent more than 50 years studying how we hear and correlating it with measurements (off-axis is just as important as on-axis). This would be an example of a terrible speaker unless someone is purposely looking for super colored (very musically dishonest) speakers.
What about running the Ancora sealed? I know it’s a three way and little down in the 92 dB target but it could be a good option.
I faced a similar issue in trying to find a high sensitivity DIY speaker with the different requirement of good quality but affordable for a father-son project. We decided on this build that I documented here:https://www.audiocircle.com/index.php?topic=139584.0It turns out it included like Cyberstudio suggested a waveguide/compression driver for the high frequencies. At the time I did try out the speakers with my 2A3 tube amplifier with good result. My son still uses these speakers and loves them.
"I have a Unison Research Little Italy, Single Ended EL34 tube-map of 2 x 12 Watts. The Plutones had played at least 100 hours before I'm got round to finish the cabinets. After the new installation however, it lasted weeks before it sounded good. But then it was there: precise and balanced but also lively and fresh. Some examples: the voice of Magdalena Kožená in arias by Bach sounds very pure and clear. Instruments and voice are separated well. Guitar and guitarra in various recordings of Amalia Rodrigues sound nicely "pointed" and where she draws out with her voice this is quite lifelike, but never too much. Sarah K's guitar is clear and detailed and has a long decay, stunning.With classical orchestral work, such as Shostakovitch's 15th Symphony with the London Philharmonic Orchestra conducted by Bernard Haitink, a lovely space is created. The last part of Mahler's "Des Knaben Wunderhorn" by the Royal Concertgebouw Orchestra with Ricardo Chailly, has a wonderful layering in music. Berlioz "Symphonie Fantastique" fourth part: "Marche au Supplice" sounds firm, with dynamic percussion, shrill and growling trumpets."(Hans - Rotterdam, Netherlands).
Sensitivity • 91 dB / 2,83 voltsImpedance • 5 ohms nominal (minimum 4.4 ohms @ 150 Hz)
Harbeth P3ESR6ohm 84db
Great speakers. I love them. However, they don't meet either of the criteria you ask for, 8 ohm minimum and 92db efficiency. QuoteWell... I wouldn't call it a criteria. More like a... "sure would be cool if we could do this". And, as this thread evolves, I evolve as well.
Well... I wouldn't call it a criteria. More like a... "sure would be cool if we could do this". And, as this thread evolves, I evolve as well.
I would not call these world class but they sound good and are rated at 92dBhttps://www.audioadvisor.com/prodinfo.asp?number=MLMO35XT
Actually 86.8dB...https://www.soundstagenetwork.com/index.php?option=com_content&view=article&id=1350:nrc-measurements-martinlogan-motion-35xt-loudspeakers&catid=77:loudspeaker-measurements&Itemid=153
