Phenolic, "a very old technology that predates modern plastics, was a very expensive decision," Weiss said. "The paper phenolic we use is a laminate structure, both extremely hard, dense, and very well damped. The rear wave of the woofer interacts with this surface; its materiality is very important sonically."
The Fleetwood DeVille SQ looks like no speaker I've had in-house or, for that matter, seen in anyone's house. It's a lovely design—not the typical slim-profile…
Description: Downward dual-ported bass-reflex, conical two-way standmount loudspeaker with horn-loaded tweeter. Driver complement: 1" neodymium compression tweeter driver with 6"-thick, solid wood conical horn and phase plug cast from a "3D printed sand mold in solid bronze"; 8" paper-cone woofer with neodymium magnet. Internal wiring is silver. Sensitivity: 94dB/W/m. Impedance: 8 ohms, nominal. Recommended amplifier power: 10W or more.
Dimensions: 24" (610mm) H × 18" (460mm) W × 10" (254mm) D; with stands, 48" H. Weight: 36lb without stand.
Finishes:…
Analog sources: Kuzma Stabi R turntable with 4Point tonearm and EMT TDS 15N moving coil cartridge.
Preamplification: JE Sugden Masterclass LA-4, Shindo Allegro.
Power amplifiers: LKV Research Veros PWR+, Shindo Haut Brion.
Loudspeakers: DeVore Fidelity O/96, Klipsch Forte IV.
Cables: Interconnect: Analysis Plus Silver Apex, Shindo (RCA). Speaker: Analysis Plus Silver Apex.
Accessories: IsoTek EVO3 Aquarius line conditioner, Pro-Ject VC-S2 ALU Record Cleaning Machine, Audiodesksysteme Gläss Vinyl Cleaner Pro, Salamander five-tier rack;…
I measured the OMA Fleetwood DeVille SQ's farfield and nearfield behavior with the DRA Labs MLSSA system, using calibrated DPA 4006 and Earthworks QTC-40 microphones and an Earthworks microphone preamplifier. I used Dayton Audio's DATS V2 system to examine the loudspeaker's impedance magnitude and electrical phase.
OMA specifies the Fleetwood DeVille's sensitivity as 94dB/W/m. My B-weighted estimate was lower, at 89dB(B)/2.83V/m, However, the DeVille's impedance, specified as a nominal 8 ohms, averages closer to 15 ohms (fig.1, solid trace). A voltage of 2…
My most recent listening session with a Luxman amplifier was at the end of 2010. I had been…
Power in listening
To make it easier to swap in and out of my system, I placed the M-10X and the Parasound monoblocks with which I was going to compare it on wheeled dollies. As usual when I review an amplifier or digital product, I didn't do any critical listening for a couple of weeks after installing the M-10X in my system, just using it for my daily dose of music. This process…
Description: Solid state, class-AB power amplifier (output stage biased into class-A operation up to 12W). Inputs: 1 pair single-ended (RCA), 1 pair balanced (XLR). Outputs: 2 pairs binding posts. Power output: 150Wpc into 8 ohms (21.76dBW), 300W into 4 ohms (21.76dBW), 600W into 8 ohms (27.8dBW) as bridged monoblock (BTL). Instantaneous maximum output power: 1200W into 1 ohm (21.76dBW), 2400W into 2 ohms (21.76dBW), BTL. Frequency response: 20Hz–20kHz, +0/–0.1dB; 1Hz–130kHz, +0/–3dB. Voltage gain: 29dB. Input sensitivity (for 150W into 8 ohms): 1.24V. Input…
Analog source: Linn Sondek LP12 turntable with Lingo power supply, Linn Ekos tonearm, Linn Arkiv B cartridge, Channel D Seta L phono preamplifier.
Digital source: Roon Nucleus+ file server; Ayre Acoustics C-5xeMP universal player; MBL N31 CD player/DAC; Ayre Acoustics QA-9 A/D converter.
Power amplifiers: Parasound Halo JC 1+ monoblocks.
Loudspeakers: Golden Ear BRX, KEF LS50.
Cables: Digital: AudioQuest Vodka (Ethernet), AudioQuest Coffee (USB), DH Labs (1m, AES/EBU). Interconnect: AudioQuest Wild Blue (balanced). Speaker: AudioQuest Robin…
I tested the Luxman M-10X with my Audio Precision SYS2722 system. I preconditioned the amplifier by following the CEA's recommendation of operating it at one-eighth the specified power into 8 ohms for 30 minutes. At the end of that time, the grilles over the internal heatsinks were hot, at 120.6°F (49.3°C), though the top panel was just warm at 90.9°F (32.8°C). Operating the amplifier for another 30 minutes at one-third the specified power, a level that results in the maximum heat dissipation in the output devices, increased the temperatures only slightly. The M-…
Can anyone accurately count the number of brands? Perhaps all the angels who can dance on the head of a pin can. But for us mere mortals, enjoying music outside the confines of our shuttered dwellings and saying hello to people long unseen…