I’m not familiar with Pietra speakers (website), but they resembled the Acora Acoustics speakers which both Marc Phillips and Dave McNair have reviewed and raved to me about recently. The large marble front baffles meant to help create a smooth off-axis rolloff in the treble are also angled to achieve time alignment according to materials in the room.
Words and Photos by Grover Neville
Made to order in San Diego California, the Pietra Model 3SG weighs an enormous 350 lbs. and, somewhat unusually, use 2nd-order transfer functions in the crossover. Efficiency is a rather low 86db at 2.83V/1m and minimum impedance is listed as 3.4 ohms. Bring a beefy amp for the Pietra.
Speaking of, the Benchmark AHB2 that was playing in the room seemed to have enough juice to drive the Pietra speakers, and the all-Benchmark system seemed to be making decent music, with an open midrange and huge bass. In fact, bass was a little too huge on some songs, and sounded a bit boomy, though I think it was a room resonance rather than a speaker issue, as I heard a similar cupped sound in some of the other rooms on the third floor.
Overall dynamics were excellent despite the tonal challenges though, and sounds exploded out of the speakers with force and authority that granite speakers I’ve heard seem to do well. For the audiophile with a strong back and a powerful amp.
Pietra Model 3SG Speaker – $19,000
Benchmark AHB2 Stereo/Mono Amplifier – $2,999/ea
Benchmark DAC3B – $1,699
Benchmark LA4 Line Amplifier (preamp) – $2,599
Aurender N200 Streamer – $6,000
Benchmark NL2-to-NL2 Speaker cable – $42.95/ea
Benchmark XLR-to-XLR Interconnect – $38/ea
Photos continue below, and more T.H.E. SHOW 2021 coverage can be found HERE.
About The Author
Grover Neville, Contributor
Grover is a recent transplant to Los Angeles, CA, and a graduate of the Oberlin Conservatory, where he studied music, creative writing, and how to wear skinny jeans. After graduating Grover pursued a freelance career in audio, doing professional research in the fields of Auditory Cognition, Psychoacoustics, and Experimental Hydrophone Design.
Before moving to Los Angeles, Grover worked and lived in Chicago, Illinois as a mixing and mastering engineer, working in genres such as Avant-garde Classical music and Jazz. As a recent transplant to L.A., Grover now works in the music, video game, and film industries.
He is also actively pursuing a career as an independent musician, composer, and producer. Grover wrote for Innerfidelity and Audiostream, before finding his forever-home at Part-Time Audiophile.