Description: Two-way standmount loudspeaker with passive radiator. Drive units: 2.5" planar-magnetic tweeter with Teonex diaphragm; 6.5" cast-frame polypropylene-cone woofer, 6×9" rear-firing passive radiator. Frequency response: 35Hz–20kHz (–6dB) in half space, down to 30Hz (–6dB) in room. Crossover frequency: 1750Hz, Linkwitz-Riley 6th-order acoustic. Nominal impedance: 6 ohms (5.6 ohms minimum). Sensitivity: 83.5dB/2.83V/m. Recommended amplifier power: 50–150W.
Dimensions: (each speaker) 14.5" (368mm) H × 8" (203mm) W × 13" (330mm) D. Net weight: 26.6lb (…
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Digital sources: Custom Intel/Win11 music server running JRiver Media Center v32 and Roon 2, Merging Devices Hapi II DAC. QNAP TVS-873 NAS. Oppo Digital UDP-103 universal disc player.
Power amplifiers: Benchmark AHB2, NAD M23, Buckeye Purifi 1ET-9040BA monoblock, in for review.
Loudspeakers: KEF Blade Two Meta with IsoAcoustics Gaia II feet, KEF LS60 Wireless, KEF KC92 subwoofers (in for review).
Cables: Digital interconnects: Mogami Gold AES TD DB25-XLR snake. Analog interconnects: Mogami Gold AES TD DB25-XLR snake, Benchmark Studio&Stage…
I used DRA Labs' MLSSA system, a calibrated DPA 4006 microphone, and an Earthworks microphone preamplifier to measure the PS Audio Aspen FR5's quasi-anechoic frequency- and time-domain behavior in the farfield. I used an Earthworks QTC-40 microphone for the nearfield responses and Dayton Audio's DATS V2 system to measure the impedance magnitude and phase.
PS Audio specifies the Aspen FR5's voltage sensitivity as 83.5dB/2.83V/m; my estimate was…
Source component was a HiFi Rose RS150B streamer ($5000) into a Chord Ultima Integrated amplifier ($11,250), driving either Totem Element Metal V2 speakers ($17,850/pair) or Totem Tribe Tower speakers ($6300/pair).
AudioQuest cables and conditioning included AQ Mackenzie XLR ($369/pair), and AQ Rocket 88 bi-wire ($1289.95/8 foot pair), as well as AQ NRG Y-3 power…
This setup was completed with the latest iteration of the renowned BBC mini-monitor, Harbeth P3ESR XD Bookshelf Loudspeakers ($2990/pair) in oak, and Sbooster power supplies.
Loomans brought the whole Infigo megillah to the show, including his Infigo Audio Method DAC 4 ($35,000) and Infigo Audio IS-1 Cryo Streamer ($7000), with analog source duties relayed by a VPI Shyla MC Cartridge ($2000) mounted on a VPI Avenger Direct Statement turntable ($50,000).
Loomans’s amplification included his Infigo Audio Method 7 Preamplifier ($20,000) into Infigo Audio…
In room 641, an Aurender N30 Streamer ($23,000) was paired with a tubed Synthesis Roma 117DC preamplifier ($5695) into Synthesis Roma 98DC SE tubed monoblocks ($9800/pair), driving…
The setup included a Garrard 301 turntable in a Semrad bocate wood plinth with a Sorane TA1L tonearm ($1875) mounted with a Mutech Hayabusa MC cartridge (4500€).
Slagle’s electronics included an EM/IA MC Trio SUT ($6000), and an EM/IA LR Phono Corrector phono stage ($33,750).
“The Trio SUT allows for up to three tonearms to be routed to…
This decision led to some interesting contests. In Loudspeakers, for example, high-value minimonitors compete with cost-no-object floorstanders. In Analog Products, turntables compete with tonearms, phono cartridges, and phono preamplifiers. And in…
Accuphase A-300 monoblock power amplifier
($49,950/pair; reviewed by Jason Victor Serinus in Vol.46 No.12, December 2023 review)
FINALISTS (in alphabetical order)
Balanced Audio Technology REX 500 power amplifier
($25,000; reviewed by Rogier van Bakel in Vol.47 No.6, June 2024 review)
Dan D'Agostino Relentless Master Audio Systems preamplifier
($149,500; reviewed by Jason Victor Serinus in Vol.47 No.9, September 2024 review)
Linn Klimax 800 monoblock power amplifier
($90,000/pair; reviewed by Jason Victor…