While the listening space, so treated—an ongoing project!—is far from dead, music played there has, for me, a pleasingly spacious quality, without obvious reverb or flutter echo. Bass support is good, if less dramatic than in my prior, fully enclosed 25' by 15.5' by 8' room with its lath-and-plaster walls…
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Prior to publication, I showed my handiwork to my wife, Janet, as per my usual practice. I expected her to laugh at the funny bits and praise my superior logic, also as…
Description: Three-way, four-driver, floorstanding loudspeaker with rear-ported enclosure. Drive units: 1" titanium-dome tweeter, 4.5" glass-fiber-cone midrange, two 6" aluminum-cone woofers. Crossover frequencies: 400Hz, 1.9kHz. Frequency range: 39Hz–30kHz. Sensitivity: 87dB/2.83V/m (anechoic), 91dB/2.83V/m (pair in-room). Impedance: 4 ohms nominal, 3.67 ohms minimum. Recommended amplification: 20–250W.
Dimensions: 40.1" (1030mm) H by 10.2" (260mm) W by 10" (255mm) D. Weight: 58.1 lbs (26.4kg).
Finishes: Gloss Black, Gloss White, Rosewood, Espresso…
Digital Sources: Marantz UD7007 Smart 3D universal BD player.
Preamplification: Integra DTC-9.8 preamplifier-processor, Jeff Rowland Design Group Consummate preamplifier.
Power Amplifier: Proceed AMP5 5.0-channel.
Loudspeakers: Monitor Audio Silver 10.
Cables: Interconnect: Kimber Kable AGDL digital (sources to Integra) & analog (to Rowland Consummate), Cardas Hexlink analog (preamps to power amp). Speaker: Monster M1.5. AC: Manufacturers' own.—Thomas J. Norton
I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the Thiel TT1's frequency response in the farfield; and, for the nearfield frequency responses, an Earthworks QTC-40, which has a ¼" capsule and thus doesn't present a significant obstacle to the sound.
My estimate of the Thiel's voltage sensitivity was 88dB(B)/2.83V/m, confirming the specified figure. The speaker's electrical impedance magnitude and phase are shown in fig.1. Like earlier Thiel models, the TT1 is a fairly demanding load for the partnering amplifier to drive,…
Although I took all of these in-room measurements after I'd written the rest of this review, they shouldn't be compared to the in-room responses measured by John Atkinson that accompany almost all reviews published in Stereophile. This is not only because they were taken in a room very different from his, but also because John uses a superior microphone and bases his averaged results on more data points. My measurements were made with OmniMic v2 from Parts Express, and while that system employs a calibrated mike, I suspect that, on the basis of price…
Description: Portable, USB-powered digital-to-analog converters. Sampling rates supported: 44.1, 48, 88.2, 96kHz. Digital input: USB Type A, male plug (hardwired). Analog output: three-conductor, 3.5mm phone jack. Maximum output voltages: DragonFly Black (v1.5), 1.2V RMS; DragonFly Red (v1.0), 2.1V RMS.
Dimensions: (both) 2.4" (62mm) L by 0.75" (19mm) W by 0.5" (12mm) D. Weight: 0.77oz (22gm).
Serial numbers of units reviewed: N/A.
Prices: DragonFly Black, $99; DragonFly Red, $199. Approximate number of dealers: 1457. Warranty: 1 year.
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